User equipment, base station, and methods performed thereby

Abstract

Embodiments of the present disclosure provide a method performed by a user equipment (UE) in a communication system, comprising: receiving a third message from a base station, wherein the third message comprises information related to an event trigger, performing, by the UE, a first measurement based on the event trigger within a first time, and transmitting, by the UE, an uplink signal no later than a first time delay, wherein the uplink signal comprises information related to a result of the first measurement that the UE can transmit, and the first time delay is defined as a time between a time point when the event triggering the measurement report occurs on an air interface and when the UE starts to transmit the uplink signal; wherein the first time delay is less than the first time or Q times of the first time, and the first time is determined based on: information related to a frequency range of a serving cell of the UE; information related to a discontinuous reception (DRX) configuration of the UE; information related to the event for triggering the measurement report; and information related to a measurement reference signal (RS) of a serving beam.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and more specifically, to methods performed by user equipment, methods performed by base stations, user equipment, or base stations. Background Technology

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or near-5G communication systems. Therefore, 5G or near-5G communication systems are also referred to as "super 4G networks" or "post-LTE systems".

[0003] 5G communication systems are implemented in higher frequency (millimeter wave, mmWave) bands, such as the 60GHz band, to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0004] In addition, in 5G communication systems, development is underway to improve system networks based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), and receiver interference cancellation.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding and modulation (ACM), while filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) have been developed as advanced access technologies. Summary of the Invention

[0006] According to one aspect of this disclosure, a method performed by a user equipment (UE) in a communication system is provided, comprising: receiving a third message from a base station, wherein the third message includes information related to event triggering, the UE performing a first measurement based on event triggering within a first time period, wherein the first measurement is a Layer 1 related measurement; and the UE transmitting an uplink signal no later than a first delay, wherein the uplink signal includes information related to the result of the first measurement that the UE can transmit, the first delay being defined as the time between the time at which an event triggering a measurement report occurs at the air interface and the time the UE begins transmitting the uplink signal; wherein the first delay is less than the first time period or Q times the first time period, wherein Q is a positive integer greater than or equal to 1, wherein the first time period is determined based on: information related to the frequency range of the UE's serving cell; information related to the UE's discontinuous reception DRX configuration; information related to the event used to trigger measurement reporting; and information related to the measurement reference signal RS of the serving beam.

[0007] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the information related to event triggering includes at least one of the following: information indicating that the measurement reporting type is event-triggered; an event for triggering measurement reporting; a measurement reporting item; and the number of event triggers.

[0008] In conjunction with any of the above embodiments, according to the method executed by a user equipment (UE) in a communication system provided by this disclosure, the event for triggering measurement reporting includes at least one of the following: a first event, indicating that the beam quality of the serving beam is less than a first threshold; a second event, indicating that the beam quality of at least one of the configured beams to be measured is higher than the beam quality of the serving beam; a third event, indicating that the beam quality of at least one of the configured beams to be measured is higher than or higher than the beam quality of the beam corresponding to a specific transmission configuration indication state in at least one activated transmission configuration indication state plus the beam quality of the beam corresponding to the specific transmission configuration indication state in at least one activated transmission configuration indication state; a fourth event, indicating that the beam quality of at least one of the configured beams to be measured is lower than a third threshold; and a fifth event, indicating that the beam quality of the serving beam is lower than a fourth threshold and the beam quality of at least one of the configured beams to be measured is higher than a fifth threshold.

[0009] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided in this disclosure, the first time is further determined based on at least one of the following information: information related to the UE's serving cell mode; information related to the UE's Transmit / Receive Point (TRP) mode; information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located (QCL) type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions; information related to whether the UE supports a second capability, wherein the second capability includes the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix; information related to at least one beam to be measured by the UE; and information related to the time point at which the UE receives information indicating the Transmission Configuration Indication (TCI) state.

[0010] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the method further includes: receiving a Media Access Control (MAC) Control Element (CE) activation command from the base station for indicating a Transmission Configuration Indication (TCI) state; after a first time point, the UE performs the first measurement within a first time period; and the UE transmits the uplink signal no later than the first delay, wherein the first time point is determined based on the time point at which the MAC CE is received.

[0011] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the method further includes: receiving downlink control information (DCI) from the base station for indicating a transmission configuration indication state (TCI); receiving a fourth message from the base station, wherein the fourth message includes a second time; after the second time point, the UE performs the first measurement within a first time period, and the UE transmits the uplink signal no later than the first delay, wherein the second time point is determined based on the time point at which the DCI is received and the second time.

[0012] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the scheduling constraint of the first measurement is associated with the measured value of the reception time difference (RTD) of multiple measurement signals received by the UE or a preset maximum supported RTD value, and / or the measurement constraint of the first measurement is associated with the measured value of the RTD or the preset maximum supported RTD value.

[0013] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the Q-times is a positive integer greater than or equal to the number of event triggers.

[0014] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the method further includes: triggering a first measurement result report based on the number of times the event for triggering measurement reporting is satisfied.

[0015] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the method further includes: sending a first message to the base station, wherein the first message includes information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions.

[0016] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the method further includes: sending a second message to a base station, wherein the second message includes information related to whether the UE supports a second capability, wherein the second capability includes the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix.

[0017] In conjunction with any of the above embodiments, according to the method performed by a user equipment (UE) in a communication system provided by this disclosure, the measurement reference signal RS of the serving beam is determined by at least one of the following: a quasi-co-located QCL reference signal RS indicating a transmission configuration indication state; a synchronization block SSB signal quasi-co-located with the QCL RS; and an RS of the same type as the measurement reference signal RS of the configured beam to be measured, and whose reference signal index set satisfies a first relationship with the reference signal index set of the measurement RS.

[0018] According to another aspect of this disclosure, a method performed by a base station in a communication system is provided, the method comprising: sending a third message to a user equipment (UE), wherein the third message includes information related to event triggering; and the base station receiving an uplink signal sent by the UE, wherein the uplink signal is sent no later than a first delay, the uplink signal including information related to the result of a first measurement that the UE can send, the first delay being defined as the time between the time at which an event triggering a measurement report occurs at the air interface and the time between the time the UE begins sending the uplink signal, wherein the first measurement is a layer 1 related measurement based on the event triggering it, and the first measurement is measured within a first time period; wherein the first delay is less than the first time period or Q times the first time period, wherein Q is a positive integer greater than or equal to 1, wherein the first time period is determined based on: information related to the frequency range of the UE's serving cell; information related to the UE's discontinuous reception DRX configuration; information related to the event used to trigger measurement reporting; and information related to the measurement reference signal RS of the serving beam.

[0019] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the information related to event triggering includes at least one of the following: information indicating that the measurement reporting type is event-triggered; an event for triggering measurement reporting; a measurement reporting item; and the number of event triggers.

[0020] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided by this disclosure, the event for triggering measurement reporting includes at least one of the following: a first event, indicating that the beam quality of the serving beam is less than a first threshold; a second event, indicating that the beam quality of at least one of the configured beams to be measured is higher than the beam quality of the serving beam; a third event, indicating that the beam quality of at least one of the configured beams to be measured is higher than the beam quality of the beam corresponding to a specific transmission configuration indication state in at least one activated transmission configuration indication state, or higher than the beam quality of the beam corresponding to the specific transmission configuration indication state in at least one activated transmission configuration indication state plus a second threshold; a fourth event, indicating that the beam quality of at least one of the configured beams to be measured is lower than a third threshold; and a fifth event, indicating that the beam quality of the serving beam is lower than a fourth threshold and the beam quality of at least one of the configured beams to be measured is higher than a fifth threshold.

[0021] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the first time is further determined based on at least one of the following information: information related to the serving cell mode of the UE; information related to the Transmit / Receive Point (TRP) mode of the UE; information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located (QCL) type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions; information related to whether the UE supports a second capability, wherein the second capability includes the UE being able to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix; information related to at least one beam to be measured by the UE; and information related to the time point at which the UE receives information indicating the Transmission Configuration Indication (TCI) state.

[0022] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the method further includes: sending a Media Access Control (MAC) Control Element (CE) activation command to the UE for indicating a Transmission Configuration Indication (TCI) state, wherein the first measurement is performed after a first time point and within a first time period, wherein the uplink signal is transmitted no later than a first time delay, and wherein the first time point is determined based on the time point at which the MAC CE is received.

[0023] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the method further includes: sending downlink control information (DCI) to the UE for indicating a transmission configuration indication state (TCI); sending a fourth message to the UE, wherein the fourth message includes a second time; wherein the first measurement is performed after the second time point and within the first time period, wherein the uplink signal is sent no later than a first time delay, wherein the second time point is determined based on the time point at which the DCI is received and the second time.

[0024] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the method further includes: receiving a first message from the UE, wherein the first message includes information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions.

[0025] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the method further includes: receiving a second message from the UE, wherein the second message includes information related to whether the UE supports a second capability, wherein the second capability includes the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix.

[0026] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided by this disclosure, the measurement reference signal RS of the serving beam is determined by at least one of the following: a quasi-co-located QCL reference signal RS indicating a transmission configuration indication state; a synchronization block SSB signal quasi-co-located with the QCL RS; and an RS of the same type as the measurement reference signal RS of the configured beam to be measured, and whose reference signal index set satisfies a first relationship with the reference signal index set of the measurement RS.

[0027] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided by this disclosure, the Q-times is a positive integer greater than or equal to the number of times the event is triggered.

[0028] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided in this disclosure, the scheduling constraint of the first measurement is associated with the measured value of the reception time difference (RTD) of multiple measurement signals received by the UE or a preset maximum supported RTD value, and / or the measurement constraint of the first measurement is associated with the measured value of the RTD or the preset maximum supported RTD value.

[0029] In conjunction with any of the above embodiments, according to the method performed by a base station in a communication system provided by this disclosure, the first measurement result reporting is triggered based on the event for triggering measurement reporting being triggered a certain number of times.

[0030] According to another aspect of this disclosure, a user equipment (UE) is provided, the UE comprising: a transceiver configured to transmit and / or receive signals; and a controller configured to control the transceiver to perform the methods described above performed by the UE.

[0031] According to another aspect of this disclosure, a base station is provided, the base station comprising: a transceiver configured to transmit and / or receive signals; and a controller configured to control the transceiver to perform the methods described above performed by the base station.

[0032] According to another aspect of this disclosure, a non-transitory computer-readable recording medium is provided, on which a program is stored for execution by a computer as described above. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the composition structure of various wireless networks according to embodiments of the present disclosure;

[0034] Figure 2a and Figure 2b This is a schematic diagram of a wireless transmission and reception path according to an embodiment of the present disclosure;

[0035] Figure 3a This is a block diagram of the composition structure of a user equipment according to an embodiment of the present disclosure;

[0036] Figure 3b This is a block diagram of the composition structure of a base station according to an embodiment of the present disclosure;

[0037] Figure 4 A schematic diagram illustrating communication between a user equipment and a base station according to an embodiment of the present disclosure is shown;

[0038] Figure 5 An exemplary structure of a user equipment (UE) according to an embodiment of the present disclosure is shown;

[0039] Figure 6 An exemplary structure of a base station according to an embodiment of the present disclosure is shown. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0041] Before proceeding with the detailed description below, it may be advantageous to define certain words and phrases used throughout this patent document. The term “coupled” and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether these elements are physically in contact with each other. The terms “transmit,” “receive,” and “communicate,” and their derivatives cover both direct and indirect communication. The terms “comprising” and “including,” and their derivatives mean including but not limited to. The term “or” is inclusive, meaning and / or. The phrase “associated with,” and its derivatives mean including, comprising, connected to, interconnected with, containing, contained within, connected to or connected to, coupled to or coupled with, communicable with, cooperating with, intertwined, juxtaposed, proximate, bound to or bound to, having, possessing attributes of, having a relationship with, or having a relationship with. 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 in a combination of hardware and software and / or firmware. The functionality associated with any particular controller may be centralized or distributed, local or remote. 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 it may be necessary to use only one item from the list. 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. Similarly, "at least one of A, B, or 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.

[0042] Furthermore, the various functions described below can be implemented or supported by one or more computer programs, each computer program being formed by 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, instruction sets, procedures, functions, objects, classes, instances, associated data, or portions thereof suitable for implementation in appropriate 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 that can be accessed by a computer, such as read-only memory (ROM), random access memory (RAM), hard disk drive, optical disc (CD), digital video disc (DVD), or any other type of storage. "Non-transitory" computer-readable media excludes wired, wireless, optical, or other communication links that transmit transient electrical or other signals. Non-transitory computer-readable media includes media that can permanently store data and media that can store and later rewrite data, such as rewritable optical discs or erasable memory devices.

[0043] The terminology used herein to describe embodiments of this application is not intended to limit and / or restrict the scope of this application. For example, unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains.

[0044] It should be understood that the terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Unless the context clearly indicates otherwise, the singular forms “a,” “one,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one.

[0045] As used herein, any reference to “an example” or “example,” “an embodiment” or “an embodiment” means that a particular element, feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment. The phrases “in one embodiment” or “in one example” appearing in different places in the specification do not necessarily refer to the same embodiment.

[0046] As used in this article, “a part” of something means “at least some” of that thing, and therefore may mean less than or all of that thing. Thus, “a part” of something includes the whole thing as a special case, that is, an example where the whole thing is a part of something.

[0047] To further understand, the terms "including" or "contains," and similar words, mean that the element or object preceding the word covers the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Above," "below," "left," and "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.

[0048] The various embodiments discussed below for describing the principles of this disclosure in this patent document are illustrative only and should not be construed as limiting the scope of this disclosure in any way. Those skilled in the art will understand that the principles of this disclosure can be implemented in any suitably arranged wireless communication system. For example, although the following detailed description of embodiments of this disclosure is directed to LTE and 5G communication systems, those skilled in the art will understand that the main points of this disclosure, with slight modifications, can also be applied to other communication systems with similar technical backgrounds and channel formats without substantially departing from the scope of this disclosure. The technical solutions of this application embodiment can be applied to various communication systems. For example, communication systems may include Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5th Generation (5G), or New Radio (NR), etc. Furthermore, the technical solutions of this application embodiment can be applied to future-oriented communication technologies.

[0049] The following description, with reference to the accompanying drawings, is provided to aid in a thorough understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. This description includes various specific details to aid understanding but should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0050] The terms and wording used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this disclosure is for illustrative purposes only and not for limiting the purpose of this disclosure as defined in the appended claims and their equivalents.

[0051] It should be understood that the singular forms of “one,” “an,” and “the” include plural references unless the context clearly indicates otherwise. Thus, for example, the reference to “component surface” includes one or more such surfaces.

[0052] The terms “comprising” or “may include” refer to the presence of a corresponding disclosed function, operation, or component that may be used in the various embodiments of this disclosure, rather than limiting the presence of one or more additional functions, operations, or features. Furthermore, the terms “comprising” or “having” may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be construed as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0053] The term "or" as used in the various embodiments of this disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0054] Unless otherwise defined, all terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of those skilled in the art as described herein. Common terms as defined in dictionaries are to be interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted ideally or overly formally unless expressly defined in this disclosure.

[0055] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR), etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0056] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0057] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130 (such as the Internet, a proprietary IP network, or other data network).

[0058] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal", or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0059] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0060] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0061] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0062] although Figure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

[0063] Figure 2a and Figure 2b Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0064] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0065] In transmit path 200, channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0066] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0067] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0068] Figure 2a and Figure 2b Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2bAt least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0069] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0070] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2a and Figure 2b This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0071] Figure 3a Example UE 116 according to this disclosure is shown. Figure 3a The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3a This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0072] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0073] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0074] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0075] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0076] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface IF 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 controller / processor 307.

[0077] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0078] although Figure 3a An example of UE 116 is shown, but it is possible to... Figure 3a Make various changes. For example, Figure 3a The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3a The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0079] Figure 3b An example gNB 102 according to this disclosure is shown. Figure 3b The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0080] like Figure 3b As shown, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0081] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0082] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0083] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0084] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0085] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 allows the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0086] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0087] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0088] although Figure 3b An example of gNB 102 is shown, but it is possible to compare it with other models. Figure 3b Various modifications can be made. For example, gNB102 can include any number of... Figure 3a Each component shown. As a specific example, an access point can include multiple backhaul or network interfaces 382, ​​and a controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0089] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0090] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0091] With the development of 5G systems, UE-side measurements are crucial for providing high-quality assurance for terminal UEs. UE-side measurements need continuous enhancement to improve communication system performance. In some cases, the network cannot effectively obtain the actual channel state of the UE; therefore, how to provide an enhanced UE measurement scheme is a problem that needs to be solved.

[0092] Various embodiments of this disclosure provide a method performed by a user equipment (UE) in a communication system, the method comprising: receiving a third message from a base station, wherein the third message includes information related to event triggering, the UE performing a first measurement based on event triggering within a first time period, wherein the first measurement is a Layer 1 related measurement; and the UE transmitting an uplink signal no later than a first delay, wherein the uplink signal includes information related to the result of the first measurement that the UE can transmit, the first delay being defined as the time between the time at which an event triggering a measurement report occurs at the air interface and the time the UE begins transmitting the uplink signal; wherein the first delay is less than the first time period or Q times the first time period, wherein Q is a positive integer greater than or equal to 1, wherein the first time period is determined based on: information related to the frequency range of the UE's serving cell; information related to the UE's discontinuous reception DRX configuration; information related to the event used to trigger measurement reporting; and information related to the measurement reference signal RS of the serving beam.

[0093] Various embodiments of this disclosure also provide a method performed by a base station in a communication system, the method comprising: sending a third message to a user equipment (UE), wherein the third message includes information related to event triggering, and the base station receiving an uplink signal sent by the UE, wherein the uplink signal is sent no later than a first delay, the uplink signal including information related to the result of a first measurement that the UE can send, the first delay being defined as the time between the time at which an event triggering a measurement report occurs at the air interface and the time between the time the UE begins sending the uplink signal, wherein the first measurement is a layer 1 related measurement based on the event triggering, and the first measurement is measured within a first time period; wherein the first delay is less than the first time period or Q times the first time period, wherein Q is a positive integer greater than or equal to 1, wherein the first time period is determined based on: information related to the frequency range of the UE's serving cell; information related to the UE's discontinuous reception DRX configuration; information related to the event used to trigger measurement reporting; and information related to the measurement reference signal RS of the serving beam.

[0094] In the methods provided by various embodiments of this disclosure, by having the UE send an uplink signal no later than a first delay and perform an event-triggered first measurement within a first time period, it is possible to quickly detect when the actual channel environment of the UE changes after receiving the third message, such as when the beam quality changes, that the beam quality meets the event for triggering measurement reporting. The measurement result is triggered to be reported or the base station is indicated to the UE side that the event for triggering measurement reporting has been met, based on the fact that the event for triggering measurement reporting is met. When the event for triggering measurement reporting is not met, the measurement result is not reported. This reduces system overhead compared to the first measurement triggered by non-UE side events, helps the base station to obtain the beam measurement results on the UE side more effectively, and improves the communication efficiency between the network or base station and the UE.

[0095] The following is in conjunction with the appendix Figure 4 Exemplary embodiments of this disclosure are further described below. Figure 4 A schematic diagram illustrating communication between a user equipment and a base station according to an embodiment of the present disclosure is shown. The method in an exemplary embodiment of the present disclosure may include steps 401 to 403. It is understood that an exemplary embodiment of the present disclosure may include only one or more steps 401 to 403, and is not limited to including all steps.

[0096] Step 401: The UE sends a first message and / or a second message to the base station.

[0097] In one implementation, the first message may include information related to whether the UE supports a first capability, which includes at least one of the following:

[0098] The UE can simultaneously receive beams from different directions;

[0099] The UE can activate at least two antenna panels simultaneously, wherein the receiving beam of at least one antenna panel is different from the receiving beam direction of the other antenna panels.

[0100] The UE is capable of simultaneously receiving and / or measuring at least two different quasi-colocation (QCL) types of signals;

[0101] Does the UE support the ability to simultaneously receive at least two different quasi-colocation (QCL) type signals and / or simultaneously measure signals of that different QCL type?

[0102] The UE can simultaneously receive and / or measure synchronization signal block (SSB) signals in different directions.

[0103] As one implementation method, if the UE does not send the first message to the base station, it can be assumed that the UE does not support the aforementioned first capability.

[0104] In one implementation, the first measurement can be an L1 measurement. Further, the L1 measurement can include at least one of the following: L1-RSRP (Layer 1 Reference Signal Receiving Power) measurement, and L1-SINR (Layer 1 Signal to Interference plus Noise Ratio) measurement. If the L1 measurements are based on different measurement results, the first message can be represented as multiple messages based on L1-RSRP and / or L1-SINR, respectively.

[0105] In one implementation, the second message may include information related to whether the UE supports a second capability, which includes the UE's ability to perform a first measurement (e.g., Layer 1 (L1) measurement) when the receiving time difference (RTD) of multiple measurement signals (e.g., the time difference of reception of measurement signals arriving at the UE side from multiple transmit-receive points (TRP) or multiple carrier components) is greater than the cyclic prefix (CP). Wherein, if the L1 measurement is based on different measurement results, the second message may also be represented as multiple messages based on L1-RSRP and / or L1-SINR respectively.

[0106] Step 402: The base station sends a third message to the UE.

[0107] In one implementation, the third message may include the Channel State Information (CSI) reporting configuration configured by the base station, such as the CSI reporting configuration of one or more serving cells.

[0108] In one implementation, the third message may include CSI reporting configurations for one or more serving cells, which may include information related to event triggering, such as at least one of the following:

[0109] - Used to indicate that the measurement reporting type is event-triggered.

[0110] - An event used to trigger measurement reporting;

[0111] The events used to trigger measurement reporting include at least one of the following:

[0112] (1) A first event, used to indicate that the beam quality of the serving beam (e.g., the beam quality may include L1-RSRP and / or L1-SINR) is less than a first threshold;

[0113] (2) A second event, used to indicate that the beam quality of at least one of the configured beams to be measured (or candidate beams) is higher than the beam quality of the serving beam;

[0114] (3) A third event, used to indicate that the beam quality of at least one of the beams to be measured in the configuration is higher than the beam quality of the beam corresponding to a specific transmission configuration indication state in the at least one activated transmission configuration indication state plus a second threshold; wherein, the specific transmission configuration indication state can be determined by: index indication or the i-th index after sorting by beam quality.

[0115] (4) A fourth event, used to indicate that the beam quality of at least one of the configured beams to be measured is below a third threshold;

[0116] (5) The fifth event, used to indicate that the beam quality of the serving beam is below the fourth threshold and the beam quality of at least one of the configured beams to be measured is above the fifth threshold.

[0117] - Measurement reporting items: such as L1-RSRP or L1-SINR.

[0118] -Number of events triggered (M) counter .

[0119] - Length of the measuring window

[0120] Step 403: After receiving the third message, the UE performs the first measurement based on the event trigger within the first time period, sends an uplink signal no later than the first time delay, and determines whether to report the first measurement result based on the third message.

[0121] As one implementation, the first measurement may be an L1 measurement. Further, the L1 measurement may include at least one of the following: L1-RSRP measurement, L1-SINR measurement.

[0122] As one implementation, the first delay is defined as the time between the time when the event triggering the measurement report occurs at the air interface and the time when the UE begins sending uplink signals.

[0123] In one implementation, the first delay is less than the first time or a multiple of the first time (e.g., Q times). In another implementation, Q is greater than or equal to M. counter A positive integer. When M counter When the value is a positive integer greater than or equal to 1, the measurement on the UE side ensures at least M counter The uplink signal is sent only when the event triggering conditions are met. This improves reliability compared to single event triggering. It can avoid potential subsequent frequent beam switching or cell switching operations by the base station when there are instantaneous channel or beam changes, thereby improving the communication reliability between the network or base station and the UE.

[0124] In one implementation, the uplink signal may include information related to the result of a first measurement that the UE can transmit.

[0125] In one of the aforementioned methods, the first measurement result is triggered to be reported based on the fact that the event used to trigger measurement reporting in the third message has been triggered a certain number of times.

[0126] As one implementation method, the initial determination can be based on one or more of the following information:

[0127] - Information related to the UE's serving cell mode. For example, the UE is configured as a single-serving cell or multi-serving cell mode (multi-serving cell modes such as intra-band CA (Intra-band Carrier Aggregation) or inter-band CA (Inter-band Carrier Aggregation)).

[0128] - Information related to the frequency range of the UE's serving cell. For example, the frequency range of each serving cell of the UE, such as frequency range 1 (FR1) and / or frequency range 2 (FR2).

[0129] - Information related to the UE's Transmit / Receive Point (TRP) mode. For example, the UE may be configured as a single TRP, intra-cell, or inter-cell mode.

[0130] - Information related to the UE's discontinuous reception DRX configuration. For example, the DRX parameters configured for the UE.

[0131] - Information related to the event used to trigger measurement reporting. For example, the event used to trigger measurement reporting included in a third message.

[0132] - Information related to the measurement reference signal (RS) of the serving beam. For example, the determination method of the measurement reference signal (RS) of the serving beam: Method 1 is the QCL RS indicating the Transmission Configuration Indication State (TCI state); Method 2 is the Synchronization Signal Block (SSB) signal of the QCL RS indicating the TCI state; Method 3 is the RS of the same type as the measurement reference signal RS of the configured beam under test and whose reference signal index satisfies the defined set relationship.

[0133] - Information related to whether the UE supports a first capability, wherein the first capability may include at least one of the following: the UE is able to simultaneously receive beams from different directions, the UE is able to simultaneously activate at least two antenna panels, the UE is able to simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE is able to simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions.

[0134] - Information related to whether the UE supports a second capability, wherein the second capability may include the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix.

[0135] - Information related to at least one beam to be measured of the UE. For example, one or more beams to be measured configured for the UE, which may be obtained by RRC (Radio Resource Control) configuration, and this disclosure does not impose any limitations on this.

[0136] - Information related to the time point at which the UE receives information indicating the Transmission Configuration Indication State (TCI). For example, the time point (e.g., time slot n) at which the UE receives the Media Access Control (MAC) Control Element (CE) command or Downlink Control Information (DCI) indicating the TCI.

[0137] In the methods provided by various embodiments of this disclosure, by having the UE send an uplink signal no later than a first delay and perform an event-triggered first measurement within a first time period, it is possible to quickly detect when the beam quality changes after receiving a third message, and to trigger the reporting of measurement results based on the satisfaction of the event for triggering measurement reporting. If the event for triggering measurement reporting is not satisfied, the reporting of measurement results is not triggered. This reduces system overhead, assists the base station in obtaining beam measurement results from the UE side more effectively, and improves the communication efficiency between the network or base station and the UE.

[0138] Upon receiving the third message, the UE performs an event-triggered first measurement within a first time period, sends an uplink signal no later than a first delay, and determines whether to trigger the reporting of the first measurement result based on the third message.

[0139] As one implementation, the first measurement may be an L1 measurement. Further, the L1 measurement may include at least one of the following: L1-RSRP measurement, L1-SINR measurement.

[0140] As one implementation, the first delay is defined as the time between the time when the event triggering the measurement report occurs at the air interface and the time when the UE begins sending uplink signals.

[0141] In one implementation, the first delay is less than the third time. The third time is determined by one or more of the following conditions:

[0142] Fourth time; M counter M2 counter M3 counter Y, the fifth time; the sixth time.

[0143] As one implementation method, M2 counter It is a non-negative integer. As one implementation method, M3 counter Y is a non-negative integer.

[0144] In one implementation, if the third message includes a configuration of the measurement window length, after receiving the third message, the UE performs an event-triggered first measurement within a third time period and sends an uplink signal no later than a first delay. In one implementation, the third time period is (M counter+ M2 counter )*Fifth time + Sixth time. In another implementation, the third time is (M counter+ M2 counter M3 counter * Fifth time + Sixth time. In another implementation, the third time is M. counter+ M2counter -Y)*Fifth time + Sixth time. In another implementation, the third time is M. counter+ M2 counter M3 counter -Y)*Fifth time + Sixth time.

[0145] M counter This refers to the number of times the event is triggered, as configured in the third message.

[0146] M2 counter It refers to the number of measurement occasions or instances that do not meet the event triggering conditions after the counter starts, or the number of measurement occasions or instances that do not meet the event triggering conditions after the first measurement occasion or instance meets the event triggering conditions after the UE enters the measurement window.

[0147] M3 counter The number of measurement timings or measurement instances that do not meet the event triggering conditions after the time point when the event that triggers the measurement report occurs over the air interface.

[0148] In one implementation, the fifth time is determined by the basic time unit of L1 measurement. Furthermore, the basic time unit of L1 measurement is determined by the L1 measurement time of one or more beams associated with the measurement event. If the measurement event is associated with only one beam, the basic time unit of L1 measurement is determined by the L1 measurement time of that beam. If the measurement event is associated with multiple beams, the basic time unit of L1 measurement is determined by the maximum value of the L1 measurement times of the multiple beams.

[0149] For each beam, the L1 measurement time, in this implementation, is determined by the following conditions. The UE can perform L1-RSRP measurements on the SSB and / or CSI-RS resources within the basic time unit of the L1 measurement, i.e., calculate the L1-RSRP. This is denoted as T. L1-RSRP It can be determined in the following ways:

[0150]

[0151] Among them, T RS This is the period of the measurement reference signal for that beam. The measurement reference signal can be either SSB or CSI-RS. For mode one, T SSB0 The period of the QCL RS (i.e., the SSB) for the indicated transmission configuration indication state (TCI state); for mode two, T SSB0The period of the QCL RS quasi-co-located synchronization signal (SSB) for indicating the transmission configuration indication state (TCI state), for mode three, T SSB0 The period of the SSB is the same type as the measurement reference signal RS of the configured beam under test, and the reference signal index satisfies the defined set relation. For beams based on CSI-RS measurements, T CSI-RS Measure the period of CSI-RS for L1.

[0152] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0153] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0154] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0155] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0156] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0157] and

[0158] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0159] T DRX This refers to the DRX cycle of the UE.

[0160] If the beam is based on FR1, N=1.

[0161] If the beam is based on FR2, N=8.

[0162] K can be 1, 1.5, or other preset values, and is not constrained here.

[0163] In one implementation, the length of the measurement window in the third message should be greater than the aforementioned third time.

[0164] When M counter When the value is a positive integer greater than or equal to 1, the measurement on the UE side ensures at least M counter The uplink signal is sent only when the event triggering conditions are met. This improves reliability compared to single event triggering. It can avoid potential subsequent frequent beam switching or cell switching operations by the base station when there are instantaneous channel or beam changes, thereby improving the communication reliability between the network or base station and the UE.

[0165] In one implementation, the uplink signal may include information related to the result of a first measurement that the UE can transmit.

[0166] In one of the aforementioned methods, the first measurement result is triggered to be reported based on the fact that the event used to trigger measurement reporting in the third message has been triggered a certain number of times.

[0167] As one implementation method, the initial determination can be based on one or more of the following information:

[0168] - Information related to the UE's serving cell mode. For example, the UE is configured as a single-serving cell or multi-serving cell mode (multi-serving cell modes such as intra-band CA (Intra-band Carrier Aggregation) or inter-band CA (Inter-band Carrier Aggregation)).

[0169] - Information related to the frequency range of the UE's serving cell. For example, the frequency range of each serving cell of the UE, such as frequency range 1 (FR1) and / or frequency range 2 (FR2).

[0170] - Information related to the UE's Transmit / Receive Point (TRP) mode. For example, the UE may be configured as a single TRP, intra-cell, or inter-cell mode.

[0171] - Information related to the UE's discontinuous reception DRX configuration. For example, the DRX parameters configured for the UE.

[0172] - Information related to the event used to trigger measurement reporting. For example, the event used to trigger measurement reporting included in a third message.

[0173] - Information related to the measurement reference signal (RS) of the serving beam. For example, the determination method of the measurement reference signal (RS) of the serving beam: Method 1 is the QCL RS indicating the Transmission Configuration Indication State (TCI state); Method 2 is the Synchronization Signal Block (SSB) signal of the QCL RS indicating the TCI state; Method 3 is the RS of the same type as the measurement reference signal RS of the configured beam under test and whose reference signal index satisfies the defined set relationship.

[0174] - Information related to whether the UE supports a first capability, wherein the first capability may include at least one of the following: the UE is able to simultaneously receive beams from different directions, the UE is able to simultaneously activate at least two antenna panels, the UE is able to simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE is able to simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions.

[0175] - Information related to whether the UE supports a second capability, wherein the second capability may include the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix.

[0176] - Information related to at least one beam to be measured of the UE. For example, one or more beams to be measured configured for the UE, which may be obtained by RRC (Radio Resource Control) configuration, and this disclosure does not impose any limitations on this.

[0177] - Information related to the time point at which the UE receives information indicating the Transmission Configuration Indication State (TCI). For example, the time point (e.g., time slot n) at which the UE receives the Media Access Control (MAC) Control Element (CE) command or Downlink Control Information (DCI) indicating the TCI.

[0178] In the methods provided by various embodiments of this disclosure, by having the UE send an uplink signal no later than a first delay and perform an event-triggered first measurement within a first time period, it is possible to quickly detect when the beam quality changes after receiving a third message, and to trigger the reporting of measurement results based on the satisfaction of the event for triggering measurement reporting. If the event for triggering measurement reporting is not satisfied, the reporting of measurement results is not triggered. This reduces system overhead, helps the base station to obtain beam measurement results from the UE side more effectively, and improves the communication efficiency between the network or base station and the UE.

[0179] The technical details of various embodiments of this disclosure will now be described with reference to specific examples.

[0180] I. When the measurement reference signal (RS) of the serving beam is based on the SSB signal: The measurement reference signal RS of the serving beam can be determined in the following ways: Method 1 is the QCL RS indicating the Transmission Configuration Indication State (TCI state), which is the SSB signal with index number ssb-index; Method 2 is the Synchronization Signal Block (SSB) signal of the QCLRS indicating the Transmission Configuration Indication State (TCI state), which can be the CSI-RS, and the CSI-RS is quasi-co-located (QCL-ed) with the SSB signal with index number ssb-index; Method 3 is the RS of the same type as the measurement reference signal RS of the configured beam to be measured, and the set of reference signal indices of the measured RS satisfies a first relationship with the set of reference signal indices of the measured RS. For example, the base station is configured with one or more beams to be measured, and the reference signal RS of the beam to be measured is based on the SSB. Furthermore, the measurement reference signal of the serving beam and the reference signal RS of the beam to be measured satisfy a defined set relationship. In one embodiment, SSBs are divided into N_groups. When the index number of the measurement reference signal of the beam to be measured is index-i, the reference signal RS of the serving beam is the SSB signal of another index in the same group as index-i. This N_group information can be configured by the base station to the UE or defined in the standard, and this disclosure does not impose any restrictions on it. In another embodiment, SSBs are divided into N_groups. When the index number of the measurement reference signal of the beam to be measured is index-i, the reference signal RS of the serving beam is the SSB signal of another index in the same group as index-i, or the SSB signal of another index in the group number + offset 0 of index-i, where offset 0 is an integer greater than 0 or less than 0 and whose absolute value is less than N_group. This N_group information can be configured by the base station to the UE or defined in the standard, and this disclosure does not impose any restrictions on it. Application method three allows the UE to measure only the beams of network packets, such as the nearest one or a few wide beams, in certain network deployments, without having to measure all beams, thus enhancing a more effective measurement mechanism in certain scenarios.

[0181] The UE receives multiple beams to be measured (1 to N). The measurement reference signal of the serving beam can be determined based on the measurement RS type of the beam. If the type of the measurement RS is SSB, the QCL RS of the currently indicated Transmission Configuration Indication State (TCI state) is also SSB.

[0182] If the event used to trigger measurement reporting is the first event:

[0183] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. The first available time, or measurement period, is denoted as T. L1-RSRP It can be determined in the following ways:

[0184]

[0185] Among them, T SSB0 For method one, T SSB0 The period of the QCL RS (i.e., the SSB) for the indicated transmission configuration indication state (TCI state); for mode two, T SSB0 The period of the QCL RS quasi-co-located synchronization signal (SSB) for indicating the transmission configuration indication state (TCI state), for mode three, T SSB0 The period of the SSB is the same type as the measurement reference signal RS of the configured beam under test, and the reference signal index satisfies the defined set relationship.

[0186] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0187] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0188] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0189] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0190] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0191] and

[0192] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0193] T DRX This refers to the DRX cycle of the UE.

[0194] If the beam is based on FR1, N=1.

[0195] If the beam is based on FR2, N=8.

[0196] K can be 1, 1.5, or other preset values, and is not constrained here.

[0197] If the event used to trigger the measurement reporting is the second / fourth / fifth event:

[0198] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. "First available time" can also refer to the measurement period, denoted as T. L1-RSRP It can be determined in the following ways:

[0199]

[0200] Among them, T SSB0 For method one, T SSB0 The period of the QCL RS (i.e., the SSB) for the indicated transmission configuration indication state (TCI state); for mode two, T SSB0 The period of the QCL RS quasi-co-located synchronization signal (SSB) for indicating the transmission configuration indication state (TCI state), for mode three, T SSB0 The period of the SSB is the same type as the measurement reference signal RS of the configured beam under test, and the reference signal index satisfies the defined set relationship.

[0201] T SSB1, T SSBi …T SSBN, This represents the SSB period of 1 to N beams under test.

[0202] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0203] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0204] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0205] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0206] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0207] and

[0208] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0209] T DRX This refers to the DRX cycle of the UE.

[0210] If the beam is based on FR1, N=1.

[0211] If the beam is based on FR2, N and S are determined by information related to whether the UE supports the first capability and information related to whether the UE supports the second capability, respectively. For example, if the UE does not support the ability to simultaneously receive beams from different directions or does not support the simultaneous activation of at least two antenna panels, then N = 8. If the UE supports the ability to simultaneously receive beams from different directions or supports the simultaneous activation of at least two antenna panels, then N = 8 / N_set, where N_set represents the number of antenna panels or the number of direction sets that the UE can support for simultaneously receiving beams from different directions. If the UE supports performing the first measurement when the reception time difference (RTD) of multiple measurement signals is greater than the cyclic prefix, then S = V if any symbol (OFDM symbol) in the SSB of the serving beam and the beam to be measured partially overlaps, completely overlaps, or is adjacent in the time domain; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0212] K can be 1, 1.5, or other preset values, and is not constrained here.

[0213] If the event used to trigger measurement reporting is a third event:

[0214] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. The first available time, or measurement period, is denoted as T. L1-RSRP It can be determined in the following ways:

[0215]

[0216] in,

[0217] T SSB_active_0 The period of the QCL RS (i.e., the SSB) indicating the active 0th Transport Configuration Indication state (TCI state).

[0218] T SSB_active_i The period of the QCL RS (i.e., the SSB) representing the active i-th Transport Configuration Indication state (TCI state) is indicated.

[0219] T SSB_active_X The active_X represents the period of the QCL RS (i.e., the SSB) of the active Transmission Configuration Indication (TCI) state X, where active_X is the total number of active Transmission Indication states.

[0220] T SSBj This indicates the SSB period of the j-th beam of the configured beam to be measured.

[0221] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0222] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0223] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0224] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0225] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0226] and

[0227] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0228] T DRX This refers to the DRX cycle of the UE.

[0229] If the beam is based on FR1, N=1.

[0230] If the beam is based on FR2, N and S are determined by information related to whether the UE supports the first capability and information related to whether the UE supports the second capability, respectively. For example, if the UE does not support the ability to simultaneously receive beams from different directions or does not support the simultaneous activation of at least two antenna panels, then N = 8. If the UE supports the ability to simultaneously receive beams from different directions or supports the simultaneous activation of at least two antenna panels, then N = 8 / N_set, where N_set represents the number of antenna panels or the number of direction sets that the UE can support for simultaneously receiving beams from different directions. If the UE supports performing the first measurement when the reception time difference (RTD) of multiple measurement signals is greater than the cyclic prefix, and if any symbol (OFDM symbol) in the SSB of the serving beam and the beam to be measured partially overlaps, completely overlaps, or is adjacent in the time domain, then S = V; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0231] K can be 1, 1.5, or other preset values, and is not constrained here.

[0232] In the various embodiments described above, the UE, based on Layer 1 events for triggering measurement reporting, immediately and rapidly triggers L1 measurement reporting results when the events for triggering measurement reporting are met. Compared to L3 measurement, this reduces the measurement latency triggered by the event, enabling faster assistance to the network in subsequent configuration and scheduling for beam switching or secondary cell activation / deactivation. It also allows for quicker response to actual beam quality changes, improving beam management efficiency. For UEs supporting higher capabilities (e.g., supporting first and / or second capabilities), beam quality can be measured and reported more quickly, assisting the network in performing appropriate beam switching, configuration, and scheduling for different types of UEs, thereby improving network communication efficiency.

[0233] In another embodiment, the SSB measured above can be applied to multiple-input multiple-output (MIMO) technology in multi-TRP (m-TRP) or advanced technologies such as carrier aggregation (CA). In the communication system between m-TRP and UE, each TRP can be a base station gNB or a part of a base station gNB. In scenarios with multiple TRPs and multiple carriers, in systems with analog beams and / or digital beams, in frequency range 1 (FR1) or frequency range 2 (FR2) or other unspecified frequencies, since the number of beams increases to multiple (more than one), beam management mechanisms, which help the base station and UE find the best or more suitable beam to improve the overall communication rate and communication reliability of the cell, are a crucial component in the communication process.

[0234] The above method can also be further applied to scenarios with two or more TRPs. The following example uses two TRPs for illustration.

[0235] If the event used to trigger measurement reporting is the first event:

[0236] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. The first available time, or measurement period, is denoted as T. L1-RSRP It can be determined in the following ways:

[0237]

[0238] Among them, T SSB0_0, and T SSB0_1 For method one, T SSB0_0, and T SSB0_1 The period of the QCL RS (i.e., the SSB) for the transmission configuration indication state (TCI state) of the paired indication corresponds to the transmission configuration indication state (TCI state) indicated by TRP#0 and the transmission configuration indication state (TCI state) indicated by TRP#1, respectively; for mode two, T SSB0_0, and T SSB0_1 The period of the QCL RS quasi-co-located Synchronization Signal Block (SSB) signal for the Transmission Configuration Indication State (TCI state) indicating pairing corresponds to the TCI state indicated by TRP#0 and the TCI state indicated by TRP#1, respectively; for mode three, T... SSB0_0, and T SSB0_1 The periods of the paired SSBs, which are of the same type as the measurement reference signals RS of the configured beam under test and whose reference signal indices satisfy the defined set relationship, correspond to TRP#0 and TRP#1, respectively.

[0239] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0240] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both the layer 1 and layer 3 measurements. As one implementation, P takes the following value: P is 1 if condition 1 is met, otherwise P is 3. However, this is not a limitation, and other representations may be used.

[0241] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0242] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0243] and

[0244] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0245] T DRX This refers to the DRX cycle of the UE.

[0246] If the beam is based on FR1, N=1.

[0247] If the beam is based on FR2, N and S are determined by information related to whether the UE supports the first capability and information related to whether the UE supports the second capability, respectively. For example, if the UE does not support the ability to simultaneously receive beams from different directions or does not support the simultaneous activation of at least two antenna panels, then N = 8. If the UE supports the ability to simultaneously receive beams from different directions or supports the simultaneous activation of at least two antenna panels, then N = 8 / N_set, where N_set represents the number of antenna panels or the number of direction sets that the UE can support for simultaneously receiving beams from different directions. If the UE supports performing the first measurement when the reception time difference (RTD) of multiple measurement signals is greater than the cyclic prefix, then S = 2 if any symbol (OFDM symbol) in the SSB of the serving beams of the two TRPs partially overlaps, completely overlaps, or is adjacent in the time domain; otherwise, S = 1.

[0248] K can be 1, 1.5, or other preset values, and is not constrained here.

[0249] If the event used to trigger the measurement reporting is the second / fourth / fifth event:

[0250] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. "First available time" can also refer to the measurement period, denoted as T.L1-RSRP It can be determined in the following ways:

[0251]

[0252] Among them, T SSB0_0, and T SSB0_1 For method one, T SSB0_0, and T SSB0_1 The period of the QCL RS (i.e., the SSB) for the transmission configuration indication state (TCI state) of the paired indication corresponds to the transmission configuration indication state (TCI state) indicated by TRP#0 and the transmission configuration indication state (TCI state) indicated by TRP#1, respectively; for mode two, T SSB0_0, and T SSB0_1 The period of the QCL RS quasi-co-located Synchronization Signal Block (SSB) signal for the Transmission Configuration Indication State (TCI state) indicating pairing corresponds to the TCI state indicated by TRP#0 and the TCI state indicated by TRP#1, respectively; for mode three, T... SSB0_0, and T SSB0_1 The periods of the paired SSBs, which are of the same type as the measurement reference signals RS of the configured beam under test and whose reference signal indices satisfy the defined set relationship, correspond to TRP#0 and TRP#1, respectively.

[0253] T SSB1_0, …T SSBN_0, This represents the SSB period of 1 to N beams under test in TRP#0.

[0254] T SSB1_1, …T SSBN_1, This represents the SSB period of 1 to N beams under test in TRP#1.

[0255] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0256] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0257] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0258] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0259] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0260] and

[0261] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0262] T DRX This refers to the DRX cycle of the UE.

[0263] If the beam is based on FR1, N=1.

[0264] If the beam is based on FR2, N and S are determined by information related to whether the UE supports the first capability and information related to whether the UE supports the second capability, respectively. For example, if the UE does not support the ability to simultaneously receive beams from different directions or does not support the simultaneous activation of at least two antenna panels, then N = 8. If the UE supports the ability to simultaneously receive beams from different directions or supports the simultaneous activation of at least two antenna panels, then N = 8 / N_set, where N_set represents the number of antenna panels or the number of direction sets that the UE can support for simultaneously receiving beams from different directions. If the UE supports performing the first measurement when the reception time difference (RTD) of multiple measurement signals is greater than the cyclic prefix, then S = V if any symbol (OFDM symbol) in the SSB of the serving beam and the beam to be measured partially overlaps, completely overlaps, or is adjacent in the time domain; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0265] K can be 1, 1.5, or other preset values, and is not constrained here.

[0266] If the event used to trigger measurement reporting is a third event:

[0267] The UE can perform L1-RSRP measurement on this SSB resource within the first available time, i.e., calculate L1-RSRP. The first available time, or measurement period, is denoted as T. L1-RSRP It can be determined in the following ways:

[0268]

[0269] Among them, T SSB_active_0_0 This indicates the period of the QCL RS (i.e., the SSB) corresponding to the activated 0th Transport Configuration Indication (TCI) state of TRP#0.

[0270] T SSB_active_i_1 This indicates the period of the QCLRS (i.e., the SSB) corresponding to the active i-th Transport Configuration Indication state (TCI state) of TRP#1.

[0271] T SSBj_0 This indicates the SSB period of the j-th beam corresponding to the beam to be measured in TRP#0.

[0272] T SSBj_1 This indicates the SSB period of the j-th beam corresponding to the beam to be measured in TRP#1.

[0273] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured, M=1; otherwise, M=3.

[0274] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0275] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0276] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0277] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0278] and

[0279] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0280] T DRX This refers to the DRX cycle of the UE.

[0281] If the beam is based on FR1, N=1.

[0282] If the beam is based on FR2, N and S are determined by information related to whether the UE supports the first capability and information related to whether the UE supports the second capability, respectively. For example, if the UE does not support the ability to simultaneously receive beams from different directions or does not support the simultaneous activation of at least two antenna panels, then N = 8. If the UE supports the ability to simultaneously receive beams from different directions or supports the simultaneous activation of at least two antenna panels, then N = 8 / N_set, where N_set represents the number of antenna panels or the number of direction sets that the UE can support for simultaneously receiving beams from different directions. If the UE supports performing the first measurement when the reception time difference (RTD) of multiple measurement signals is greater than the cyclic prefix, then S = V if any symbol (OFDM symbol) in the SSB of the serving beam and the beam to be measured partially overlaps, completely overlaps, or is adjacent in the time domain; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0283] K can be 1, 1.5, or other preset values, and is not constrained here.

[0284] In addition, how to measure and report results more accurately is also an urgent problem to be solved.

[0285] As one implementation, the scheduling limit of the first measurement can be associated with the measured value of the reception time difference (RTD) of multiple measurement signals received by the UE or the preset maximum supported RTD value.

[0286] For example, when a UE performs L1-RSRP or L1-SINR, scheduling constraints can be determined by the measured value of the reception time difference (RTD) of multiple measurement signals received by the UE, or by a preset maximum supported RTD value.

[0287] - In frequency range 1 (FR1):

[0288] - If the UE supports simultaneousRxDataSSB-DiffNumerology, no scheduling restrictions are required.

[0289] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, the UE does not expect to transmit PUCCH (Physical Uplink Control Channel) on SSB symbols or CSI-RS symbols (configured as L1-RSRP or RLM, BFD) and before or after L1 symbols.

[0290] / PUSCH (Physical Uplink Shared Channel) / SRS (Sound Reference Signal) or receive PDCCH (Physical Downlink Control Channel) / PDSCH (Physical Downlink Shared Channel)

[0291] / CSI-RS for tracking / CSI-RS for CQI. The value of L1 is based on the measured value of the RTD or the preset maximum supported RTD value. L1 = ceil(measured value of the RTD or the preset maximum supported RTD value / symbol length of OFDM (Orthogonal Frequency Division Multiplexing)).

[0292] - In frequency range 2 (FR2):

[0293] - If the UE supports simultaneousRxDataSSB-DiffNumerology, no scheduling restrictions are required.

[0294] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, the UE does not expect to be in the SSB symbol or CSI-RS symbol (configured as L1-RSRP or

[0295] L1 symbol transmissions on or before and after RLM (BFD).

[0296] PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS for

[0297] Tracking / CSI-RS for CQI. The value of L1 is based on the measured value of the RTD or the preset maximum supported RTD value. L1 = ceil(measured value of the RTD or the preset maximum supported RTD value / symbol length of the OFDM).

[0298] As one of the above methods, the measurement limit of the first measurement can be associated with the measured value of the RTD or a preset maximum supported RTD value.

[0299] For example, in L1-RSRP or L1-SINR measurements, measurement limitations can be imposed based on the measured value of the RTD or a preset maximum supported RTD value:

[0300] - In frequency range 1 (FR1), over L2 overlapping or partially overlapping measurement symbols, the value of L2 is based on the measured value of the RTD or the preset maximum supported RTD value. L2 = ceil(measured value of the RTD or the preset maximum supported RTD value / OFDM symbol length)

[0301] - If the subcarrier spacing (SCS) of SSB and CSI-RS is the same, there are no measurement limitations.

[0302] - If the UE supports simultaneousRxDataSSB-DiffNumerolog, there are no measurement limitations.

[0303] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, a measurement limitation is introduced, which can only measure one of L1-RSRP or RLM, or BFD.

[0304] - In frequency range 2 (FR2), over L2 overlapping or partially overlapping measurement symbols, the L2 value is based on the measured value of the RTD or the preset maximum supported RTD value. L2 = ceil(measured value of the RTD or the preset maximum supported RTD value / OFDM symbol length)

[0305] - If the SSB and CSI-RS have the same SCS, there are no measurement limitations.

[0306] - If the UE supports simultaneousRxDataSSB-DiffNumerology, there are no measurement limitations.

[0307] - If the UE does not support simultaneousRxDataSSB-DiffNumerology, a measurement limitation is introduced, which can only measure one of L1-RSRP or RLM, or BFD.

[0308] With support for L1-RSRP or L1-SINR measurements, it enables network deployment with larger cell radii and more accurate UE beam measurements and reporting, improving more flexible network deployment and communication efficiency between base stations and UEs.

[0309] If the event used to trigger the measurement reporting is event 1 / 2 / 4 / 5:

[0310] In one implementation, the UE receives a PDSCH in slot n, which carries a MAC-CE activation command indicating the Transmission Configuration Indication State (TCI). If the target TCI state is known, the UE can activate the PDSCH at the first time point (…). After the time slot length), the first measurement is performed within the first time period, and the uplink signal is transmitted no later than the first delay. If the target TCI state is in the active TCI state list, T Ok =1, otherwise 0. Where, T HARQ This refers to the time for downlink data transmission and confirmation. The number of slots in a subframe is three times the number of slots. T first-SSB This refers to the time of the first SSB received after the MAC-CE command is decoded, and this SSB is quasi-co-located (QCL-ed) with the target TCI state. SSB-proc The processing time for the SSB is indicated, for example, X milliseconds.

[0311] In one implementation, if the UE receives downlink control information (DCI) indicating the Transmission Configuration Indication (TCI) state in slot n, the UE can perform a first measurement within a first time period after a second time point (slot n + L (second time)) and transmit the uplink signal no later than the first delay. Here, L is the second time indicated by the system and can be configured by the base station via a fourth message.

[0312] If the event used to trigger measurement reporting is a third event:

[0313] As one implementation, if the UE receives a PDSCH in slot n, and this PDSCH carries a MAC-CE activation command for updating the Transmission Configuration Indicator (TCI) list, and if any of the activated TCI states differs from those before slot n, the UE can activate the PDSCH at a third time point (…). After the time slot length), the first measurement is performed within the first time period, and the uplink signal is transmitted no later than the first time delay, wherein T first-SSB_i This indicates the time of the first SSB received after the MAC-CE command is decoded, where the SSB is the i-th SSB that is not in the previously active TCI list. Where T... HARQ This refers to the time for downlink data transmission and confirmation. The number of slots in a subframe is three times the number of slots. T SSB-proc The processing time for the SSB is indicated, for example, X milliseconds.

[0314] In the above embodiments, the UE receives a service beam change or activation signal from the base station at a certain moment. After that moment, the UE applies event-triggered Layer 1 measurement, which more accurately reflects the real-time changes of the channel or beam, and sends an uplink signal to notify the base station. Therefore, it can help the base station obtain more reliable beam measurement results from the UE side more effectively, and improve the communication efficiency between the network or base station and the UE.

[0315] In the above embodiments, the UE, based on the Layer 1 event for triggering measurement reporting, immediately and quickly triggers the L1 measurement reporting result when the event for triggering measurement reporting is met. Compared with L3 measurement, the measurement latency triggered by the event is reduced, which can assist the network in performing subsequent configuration and scheduling of beam switching or secondary cell activation / deactivation more quickly. It can also respond more quickly to rapid actual changes in beam quality, thus accelerating and improving the efficiency of beam management.

[0316] II. When the measurement reference signal (RS) of the serving beam is determined to be the CSI-RS signal:

[0317] The UE receives multiple beams to be measured (1 to N). The measurement reference signal of the serving beam can be determined based on the measurement RS type of the beam. If the measurement RS type is CSI-RS, the QCL RS of the currently indicated Transmission Configuration Indication State (TCI state) is also CSI-RS.

[0318] If the event used to trigger measurement reporting is the first event:

[0319] The UE can perform L1-RSRP measurement, i.e., calculate L1-RSRP, on this CSI-RS resource within the first time. The first time (T L1-RSRP It can be determined in the following ways:

[0320]

[0321] Among them, T CSI-RS0 The period of the QCL RS (i.e., the CSI-RS) indicating the Transmission Configuration Indication State (TCI state).

[0322] M: If timeRestrictionForChannelMeasurement is configured, it means that the measurement time of L1 is restricted. If timeRestrictionForChannelMeasurement is configured or based on non-periodic CSI-RS resources, M=1; otherwise, M=3.

[0323] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both layer 1 and layer 3 measurements.

[0324] As one implementation method, P can take the following values: P is 1 if condition 1 is met, otherwise P is 3. However, it is not limited to this and other representation methods can also be used.

[0325] Condition 1: If the SSB is configured for L1-RSRP measurement outside the measurement gap:

[0326] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0327] and

[0328] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0329] T DRX This refers to the DRX cycle of the UE.

[0330] If it is a periodic CSI-RS resource and the repetition parameter is configured to be off, N=1.

[0331] If the CSI-RS resource is based on a period and the repetition parameter is configured to be on, then N = ceil(maxNumberRxBeam / N) res_per_set ), where maxNumberRxBeam represents the maximum number of supported receive beams, N res_per_set The number of resources in each resource set.

[0332] K can be 1, 1.5, or other preset values, and is not constrained here.

[0333] If the event used to trigger the measurement reporting is the second / fourth / fifth event:

[0334] The UE can perform L1-RSRP measurement, i.e., calculate L1-RSRP, on this CSI-RS resource within the first time. The first time (T L1-RSRP It can be determined in the following ways:

[0335]

[0336] Among them, T CSI-RS0 The period of the QCL RS (i.e., the CSI-RS) indicating the Transmission Configuration Indication State (TCI state) is used. Another implementation is an RS whose reference signal index is of the same type as the measurement reference signal RS of the configured beam to be measured, and whose reference signal index set satisfies a first relationship with the reference signal index set of the measurement RS. For example, the base station configures one or more beams to be measured, and the reference signal RS of the beam to be measured is based on CSI-RS. Furthermore, the measurement reference signal of the serving beam and the reference signal RS of the beam to be measured satisfy a defined set relationship. In one embodiment, the QCL RS of the beam to be measured and the QCL RS of the serving beam are both quasi-co-located with an SSB of the same index number. In this embodiment, the network only measures the beams corresponding to the CSI-RS of the quasi-co-located SSBs, for example, several narrow beams belonging to the same wide beam coverage area, enhancing the more efficient measurement mechanism in this scenario. In another embodiment, the aforementioned quasi-co-located SSBs may not have the same index number, but belong to the same SSB group. Alternatively, SSBs can be divided into N_groups. When the index number of the measurement reference signal for the beam to be measured is index-i, the reference signal RS for the serving beam is the SSB signal of another index in the same group as index-i. This N_group information can be configured by the base station to the UE or agreed upon in the standard, and this disclosure does not impose any restrictions on it. This mapping relationship can also be expressed as the SSB signal of the SSB signal or the SSB signal of another index in the group number + offset O of the group containing index-i, where offset O is an integer greater than or less than 0 and whose absolute value is less than N_group.

[0337] T CSI-RSi This represents the CSI-RS period of the i-th beam to be measured.

[0338] M: If timeRestrictionForChannelMeasurement is configured, it indicates that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured or based on non-periodic CSI-RS resources, M=1; otherwise, M=3.

[0339] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both the layer 1 and layer 3 measurements. As one implementation, P takes the following value: P is 1 if condition 1 is met, otherwise P is 3. However, this is not a limitation, and other representations may be used.

[0340] Condition 1: If the CSI-RS is configured for L1-RSRP measurements outside the measurement gap:

[0341] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0342] and

[0343] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0344] T DRX This refers to the DRX cycle of the UE.

[0345] If the beam is based on FR1, N=1.

[0346] If it is a periodic CSI-RS resource and the repetition parameter is configured to be off, N=1.

[0347] If the CSI-RS resource is based on a period and the repetition parameter is configured to be on, and if the UE does not support the first capability, such as the UE not supporting the ability to simultaneously receive beams from different directions or the UE not supporting the simultaneous activation of at least two antenna panels, then N = ceil(maxNumberRxBeam / N) res_per_set ), where maxNumberRxBeam represents the maximum number of supported receive beams, N res_per_set The number of resources in each resource set. If the UE supports a first capability, such as the ability to simultaneously receive beams from different QCL-Ds or the ability to simultaneously activate at least two antenna panels, N = ceil(maxNumberRxBeam / D / N) res_per_set If the UE supports the second capability, if any symbol (OFDM symbol) in the SSB of the serving cell's beam and the beam of the cell to be measured partially overlaps, completely overlaps, or is adjacent in the time domain, then S = V; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0348] If the event used to trigger the measurement reporting is event three:

[0349] The UE can perform L1-RSRP measurement, i.e., calculate L1-RSRP, on this CSI-RS resource within the first time. The first time (T L1-RSRP It can be determined in the following ways:

[0350]

[0351] Among them, T CSIRS_active_0 The period of the QCL RS (i.e., the CSI-RS) indicating the active 0th Transmission Configuration Indication (TCI) state.

[0352] T CSIRS_active_i The period of the QCL RS (i.e., the CSI-RS) representing the active i-th Transmission Configuration Indication state (TCI state).

[0353] T CSI_active_X The period of the QCL RS (i.e., the CSI-RS) for the Xth active Transmission Configuration Indication (TCI) state is indicated, where active_X is the total number of active transmission indication states.

[0354] T CSIRS_active_j This indicates the CSI-RS period of the j-th beam of the configured beam to be measured.

[0355] M: If timeRestrictionForChannelMeasurement is configured, it indicates that the measurement time of L1 measurement is restricted. If timeRestrictionForChannelMeasurement is configured or based on non-periodic CSI-RS resources, then M=1; otherwise, M=3.

[0356] P: Scaling factor P may include P sharing factor This scaling factor is used to scale both the layer 1 and layer 3 measurements. As one implementation, P takes the following value: P is 1 if condition 1 is met, otherwise P is 3. However, this is not a limitation, and other representations may be used.

[0357] Condition 1: If the CSI-RS is configured for L1-RSRP measurements outside the measurement gap:

[0358] - It does not overlap with the SSB symbol indicated by SSB-ToMeasure, nor with the one data symbol preceding each consecutive SSB symbol indicated by SSB-ToMeasure and the one data symbol following each consecutive SSB symbol indicated by SSB-ToMeasure, if SSB-ToMeasure is configured.

[0359] and

[0360] - It does not overlap with the RSSI symbol indicated by ss-RSSI-Measurement, nor with the one data symbol preceding each RSSI symbol indicated by ss-RSSI-Measurement and the one data symbol following each RSSI symbol indicated by ss-RSSI-Measurement, if ss-RSSI-Measurement is configured.

[0361] T DRX This refers to the DRX cycle of the UE.

[0362] If the beam is based on FR1, N=1.

[0363] If it is a periodic CSI-RS resource and the repetition parameter is configured to be off, N=1.

[0364] If the CSI-RS resource is based on a period and the repetition parameter is configured to be on, and if the UE does not support the first capability, such as the UE not supporting the ability to simultaneously receive beams from different directions or the UE not supporting the simultaneous activation of at least two antenna panels, then N = ceil(maxNumberRxBeam / N) res_per_set ), where maxNumberRxBeam represents the maximum number of supported receive beams, N res_per_set The number of resources in each resource set. If the UE supports a first capability, such as the ability to simultaneously receive beams from different QCL-Ds or the ability to simultaneously activate at least two antenna panels, N = ceil(maxNumberRxBeam / D / N) res_per_set If the UE supports the second capability, if any symbol (OFDM symbol) in the SSB of the serving cell's beam and the beam of the cell to be measured partially overlaps, completely overlaps, or is adjacent in the time domain, then S = V; otherwise, S = 1, where V represents the number of beams that partially overlap, completely overlap, or are adjacent in the time domain.

[0365] K can be 1, 1.5, or other preset values, and is not constrained here.

[0366] In the various embodiments described above, the UE, based on Layer 1 events for triggering measurement reporting, immediately and rapidly triggers L1 measurement reporting results when the events for triggering measurement reporting are met. Compared to L3 measurement, this reduces the measurement latency triggered by the event, enabling faster assistance to the network in subsequent configuration and scheduling for beam switching or secondary cell activation / deactivation. It also allows for faster response to actual beam quality changes, improving beam management efficiency. For UEs supporting higher capabilities (e.g., supporting first and / or second capabilities), beam quality can be measured and reported more quickly, assisting the network in performing appropriate beam switching, configuration, and scheduling for different types of UEs, thereby improving network communication efficiency.

[0367] If the event used to trigger the measurement reporting is event 1 / 2 / 4 / 5:

[0368] In one implementation, the UE receives a PDSCH in slot n, which carries a MAC-CE activation command indicating the Transmission Configuration Indication State (TCI). If the target TCI state is known, the UE should activate the PDSCH at the fourth time point (…). After the time slot length), the first measurement is performed within the first time period, and the uplink signal is transmitted no later than the first delay. If the target TCI state is in the active TCI state list, T Ok =1, otherwise 0. T first-SSB This refers to the time of the first SSB received after the MAC-CE command is decoded, and the SSB is quasi-co-located (QCL-ed) with the target TCI state. HARQ This refers to the time for downlink data transmission and confirmation. The number of slots in a subframe is three times the number of slots. T SSB-proc The processing time for the SSB is indicated, for example, X milliseconds.

[0369] In one implementation, if the UE receives downlink control information (DCI) indicating the Transmission Configuration Indication (TCI) state in slot n, the UE can perform the first measurement within the first time interval after the fifth time point (slot n + L (second time)) and transmit the uplink signal no later than the first delay. Here, L is the second time indicated by the system and can be configured by the base station via a fourth message.

[0370] If the event used to trigger measurement reporting is a third event:

[0371] As one implementation, if the UE receives a PDSCH in slot n, and this PDSCH carries a MAC-CE activation command to indicate the Transmission Configuration Indication (TCI) state, and if any of the activated TCI states differs from those before slot n, the UE can activate the PDSCH at the sixth time point (…). After the time slot length, the first measurement is performed within the first time period, and the uplink signal is transmitted no later than the first time delay. first-SSB_k This indicates the time of the first SSB received after MAC-CE command decoding, where the SSB is the i-th QCL RS quasi-co-addressable SSB that is not in the previously active TCI list. HARQ This refers to the time for downlink data transmission and confirmation. The number of slots in a subframe is three times the number of slots. T SSB-proc The processing time for the SSB is indicated, for example, X milliseconds.

[0372] In one implementation, if the UE receives downlink control information (DCI) carrying a transmission configuration indication state (TCI) on a PDCCH at a seventh time point, the UE performs a first measurement after the seventh time point and should be ready to send the uplink signal at an eighth time point (the UE shall be ready to start the transmission). The reference signal for the first measurement is associated with the downlink control information (DCI) carried by the latest or most recent PDCCH received before the uplink signal. This association can be achieved through one of the following methods: a reference signal index indicated by the reference signal in the TCI; or quasi-co-addressing of the reference signal in the TCI with the reference signal of the first measurement. The seventh time point can be time slot n or any other time unit. The first delay is the time interval between the seventh and eighth time points, including at least the first time and / or the time of arrival of the uplink signal, wherein the time of arrival of the uplink signal is no later than the time interval between the most recent reference signal used for the first measurement and the uplink signal. One embodiment is that the first delay is at least greater than or equal to the first time plus the time of arrival of the uplink signal, wherein the time of arrival of the uplink signal is no later than the time interval between the most recent reference signal for the first measurement and the uplink signal. In some embodiments, after the seventh time point, the UE does not expect the TCI state indicated by other DCI formats within the first delay to be different from the most recent indicated TCI state. In some embodiments, the uplink signal is a first PUCCH signal. The reference signal for the first measurement is SSB and / or CSI-RS.

[0373] In another implementation, if the UE receives a PDSCH carrying a MAC-CE activation command at the ninth time point, the UE performs a first measurement after the ninth time point and should be ready to send the uplink signal at the tenth time point (the UE shall be ready to start the transmission). The reference signal for the first measurement is the Transmission Configuration Indication State (TCI) in the MAC-CE activation command carried by the latest or most recent PDSCH received before the uplink signal. The associated method includes one of the following: a reference signal index indicated by the reference signal in the TCI; or quasi-co-addressing of the reference signal in the TCI with the reference signal of the first measurement. The ninth time point can be time slot n or other time units. The first delay is the time interval from the ninth time point to the tenth time point, including at least the first time and / or the time of arrival of the uplink signal, wherein the time of arrival of the uplink signal is no later than the time interval between the most recent reference signal used for the first measurement and the uplink signal. One embodiment is that the first delay is at least greater than or equal to the first time plus the time of arrival of the uplink signal, wherein the time of arrival of the uplink signal is no later than the time interval between the most recent reference signal for the first measurement and the uplink signal. In some embodiments, after the seventh time point, the UE does not expect to be activated by a TCI state indicated by another DCI format and / or MAC-CE within the first delay that differs from the most recent indicated TCI state. In some embodiments, the uplink signal is a first PUCCH signal. The reference signal for the first measurement is SSB and / or CSI-RS.

[0374] In the above embodiments, the UE, based on the Layer 1 event for triggering measurement reporting, immediately and quickly triggers the L1 measurement reporting result when the event for triggering measurement reporting is met. Compared with L3 measurement, the measurement delay triggered by the event is reduced, which can assist the network in performing subsequent configuration and scheduling of beam switching or secondary cell activation / deactivation more quickly. It can also respond to actual changes in beam quality more quickly and improve the efficiency of beam management.

[0375] Figure 5 This is a block diagram illustrating the structure of a user equipment 500 according to an embodiment of the present disclosure.

[0376] refer to Figure 5User equipment 500 includes a transceiver 501 and a controller 502. The transceiver 501 is configured to transmit signals to and receive signals from the outside. The controller 502 is configured to perform the methods described above by the user equipment. User equipment 500 can be implemented in hardware, software, or a combination of hardware and software to enable it to perform the methods described herein.

[0377] Figure 6 This is a block diagram illustrating the structure of a base station 600 according to an embodiment of the present disclosure.

[0378] refer to Figure 6 The base station 600 includes a transceiver 601 and a controller 602. The transceiver 601 is configured to transmit signals to and receive signals from the outside. The controller 602 is configured to perform the methods described above by the base station. The base station 600 may be implemented in hardware, software, or a combination of hardware and software to enable it to perform the methods described herein.

[0379] Those skilled in the art will understand that the illustrative embodiments described above are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein can be combined in any combination. Furthermore, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that aspects of this disclosure, as generally described herein and illustrated in the accompanying drawings, can be arranged, substituted, combined, separated, and designed in a variety of different configurations, all of which are contemplated herein.

[0380] Those skilled in the art will understand that the various illustrative logic blocks, modules, circuits, and steps described herein can be implemented in hardware, software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps are described above in the form of sets of functions. Whether such sets of functions are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art may implement the described sets of functions in different ways for each specific application, but such design decisions should not be construed as departing from the scope of this application.

[0381] The various illustrative logic blocks, modules, and circuits described in this application may be implemented or performed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0382] The steps of the methods or algorithms described in this application may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information to / from the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside as discrete components in the user terminal.

[0383] In one or more exemplary designs, the functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, the latter including any medium that facilitates the transfer of a computer program from one location to another. Storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0384] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A method performed by a user equipment (UE) in a communication system, the method comprising: A third message is received from the base station, wherein the third message includes information related to the event triggering. The UE performs a first measurement based on an event trigger within a first time period, wherein the first measurement is a Layer 1 related measurement; and The UE transmits an uplink signal no later than a first delay, wherein the uplink signal includes information related to the result of a first measurement that the UE can transmit, and the first delay is defined as the time between the time at which the event that triggers the measurement report occurs at the air interface and the time between the time the UE begins transmitting the uplink signal. Wherein, the first delay is less than the first time or Q times the first time, where Q is a positive integer greater than or equal to 1. The first time is determined based on the following information: Information related to the frequency range of the UE's serving cell; Information related to the UE's discontinuous reception DRX configuration; Information related to the events used to trigger measurement reporting; Information related to the measurement reference signal RS of the serving beam.

2. The method according to claim 1, wherein, The information related to the event triggering includes at least one of the following: Used to indicate that the measurement reporting type is event-triggered; Events used to trigger measurement reporting; Measurement and reporting items; Number of times the event is triggered.

3. The method according to claim 1 or 2, wherein, The event used to trigger measurement reporting includes at least one of the following: The first event is used to indicate that the beam quality of the serving beam is less than a first threshold; The second event is used to indicate that the beam quality of at least one of the configured beams to be measured is higher than the beam quality of the serving beam. The third event is used to indicate that the beam quality of at least one of the beams to be measured in the configuration is higher than the beam quality of the beam corresponding to a specific transmission configuration indication state in the at least one activated transmission configuration indication state, or higher than the beam quality of the beam corresponding to the specific transmission configuration indication state in the at least one activated transmission configuration indication state plus a second threshold. The fourth event is used to indicate that the beam quality of at least one of the configured beams under test is below the third threshold. The fifth event indicates that the beam quality of the serving beam is below the fourth threshold and the beam quality of at least one of the configured beams to be measured is above the fifth threshold.

4. The method according to claim 1, wherein, The first time is also determined based on at least one of the following: Information related to the UE's serving cell mode; Information related to the UE's Transmit / Receive Point (TRP) mode; Information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions. Information related to whether the UE supports a second capability, wherein the second capability includes the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix; Information related to at least one beam to be measured of the UE; Information related to the time point at which the UE receives information indicating the Transmission Configuration Indication (TCI) status.

5. The method according to claim 1, wherein, The method further includes: Receive from the base station a Media Access Control (MAC) Control Element (CE) activation command for indicating the Transmission Configuration Indication (TCI) status. After the first time point, the UE performs the first measurement within the first time period. The UE transmits the uplink signal no later than the first delay. The first time point is determined based on the time point at which the MAC CE is received.

6. The method according to claim 1, wherein, The method further includes: Receive downlink control information (DCI) from the base station for indicating the transmission configuration indication status (TCI); A fourth message is received from the base station, wherein the fourth message includes a second time. After the second time point, the UE performs the first measurement within the first time period. The UE transmits the uplink signal no later than the first delay. The second time point is determined based on the time point at which the DCI is received and the second time.

7. The method according to claim 1, wherein, The scheduling constraint of the first measurement is associated with the measured value of the reception time difference (RTD) of multiple measurement signals received by the UE or a preset maximum supported RTD value, and / or The measurement limit of the first measurement is associated with the measured value of the RTD or a preset maximum supported RTD value.

8. The method according to claim 2, wherein, The Q-times is a positive integer greater than or equal to the number of times the event is triggered.

9. The method according to claim 2, wherein, The method further includes: Based on the number of times the event for triggering measurement reporting is satisfied, the first measurement result is triggered and reported.

10. The method according to claim 1, wherein, The method further includes: Send a first message to the base station, wherein the first message includes information related to whether the UE supports a first capability, wherein the first capability includes at least one of the following: the UE can simultaneously receive beams from different directions, the UE can simultaneously activate at least two antenna panels, the UE can simultaneously receive and / or measure at least two different quasi-co-located QCL type signals, and the UE can simultaneously receive and / or measure synchronization signal block (SSB) signals from different directions.

11. The method according to claim 1, wherein, The method further includes: A second message is sent to the base station, wherein the second message includes information related to whether the UE supports a second capability, wherein the second capability includes the UE's ability to perform a first measurement when the reception time difference (RTD) of receiving multiple measurement signals is greater than the cyclic prefix.

12. The method according to claim 1, wherein, The measurement reference signal RS of the service beam is determined by at least one of the following: The quasi-co-address QCL reference signal RS indicates the transmission configuration status. The synchronization block SSB signal is co-located with the QCL RS; RS that is of the same type as the measurement reference signal RS of the configured beam to be measured and whose reference signal index set satisfies a first relationship with the reference signal index set of the measurement RS.

13. A method performed by a base station in a communication system, the method comprising: A third message is sent to the user equipment (UE), wherein the third message includes information related to the event triggering, and The base station receives an uplink signal sent by the UE, wherein the uplink signal is sent no later than a first delay, and the uplink signal includes information related to the result of a first measurement that the UE can send. The first delay is defined as the time between the time at which the event triggering the measurement report occurs at the air interface and the time between the UE starting to send the uplink signal. The first measurement is a layer 1 related measurement triggered by the event, and the first measurement is taken within a first time period; Wherein, the first delay is less than the first time or Q times the first time, where Q is a positive integer greater than or equal to 1. The first time is determined based on the following information: Information related to the frequency range of the UE's serving cell; Information related to the UE's discontinuous reception DRX configuration; Information related to the events used to trigger measurement reporting; Information related to the measurement reference signal RS of the serving beam.

14. A user equipment (UE), the UE comprising: A transceiver is configured to transmit and / or receive signals; as well as The controller is configured to control the transceiver to perform the method according to any one of claims 1-12.

15. A base station, the base station comprising: A transceiver is configured to transmit and / or receive signals; as well as The controller is configured to control the transceiver to perform the method according to claim 13.

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