Communication method, terminal, network device, communication apparatus, communication system, and medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a communication apparatus, a communication system, and a medium. The communication method comprises: a terminal determining a first reference signal resource corresponding to a current beam in an event, wherein the first reference signal resource is at least one reference signal resource among second reference signal resources, and each second reference signal resource is configured with tracking reference signal (TRS) information; and when a condition for triggering the event is satisfied, the terminal sending a first report to a network device. By means of the embodiments of the present disclosure, the timeliness and accuracy of beam reporting can be ensured.

Description

Communication methods, terminals, network equipment, communication devices, communication systems and media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network equipment, communication devices, communication systems and media. Background Technology

[0002] In New Radio (NR), especially in frequency range 2 (above 7 GHz), due to the rapid attenuation of high-frequency channels, beam-based transmission and reception are required to ensure coverage.

[0003] In the process of beam management, network devices are typically configured to periodically, semi-statically, or non-periodically report beam measurement reports.

[0004] Summary of the Invention

[0005] Ensuring the timeliness and accuracy of beam reports is a problem that needs to be solved.

[0006] This disclosure provides communication methods, terminals, network devices, communication apparatuses, communication systems, and media.

[0007] According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal determining a first reference signal resource corresponding to a current beam in an event, the first reference signal resource being at least one of a second reference signal resource, the second reference signal resource being configured with tracking reference signal (TRS) information; and when the event is triggered, the terminal sending a first report to a network device.

[0008] According to a second aspect of the present disclosure, a communication method is provided, the method comprising: a network device receiving a first report sent by a terminal, the first report being sent when a triggering event is met, wherein the current beam corresponds to a first reference signal resource, the first reference signal resource being at least one of a second reference signal resource, and the second reference signal resource being configured with TRS information.

[0009] According to a third aspect of the present disclosure, a terminal is provided, comprising: a processing module, configured to determine a first reference signal resource corresponding to a current beam in an event, wherein the first reference signal resource is at least one of a second reference signal resource, and the second reference signal resource is configured with tracking reference signal (TRS) information; and a transceiver module, configured to send a first report to a network device when the event is triggered.

[0010] According to a fourth aspect of the present disclosure, a network device is provided, comprising: a transceiver module for receiving a first report sent by a terminal, the first report being sent when a triggering event is met, wherein the current beam corresponds to a first reference signal resource, the first reference signal resource being at least one of a second reference signal resource, and the second reference signal resource being configured with TRS information.

[0011] According to a fifth aspect of the present disclosure, a communication apparatus is provided, comprising: one or more processors; wherein the processors are configured to execute the communication method of the first aspect.

[0012] According to a sixth aspect of the present disclosure, a communication apparatus is provided, comprising: one or more processors; wherein the processors are configured to execute the communication method of the second aspect.

[0013] According to a seventh aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0014] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions, characterized in that, when the instructions are executed on a communication device, the communication device performs the method of the first aspect or the second aspect.

[0015] According to a ninth aspect of the present disclosure, a computer program is provided that, when executed by a communication device, causes the communication device to perform the communication method of the first aspect or the second aspect.

[0016] Through the embodiments of this disclosure, the terminal determines at least one reference signal resource in the second reference signal resource configured with TRS information as the first reference signal resource corresponding to the current beam in the event, thereby determining whether the triggering event has been triggered based on the accurate reference signal resource, ensuring the accuracy of the beam report; when the triggering event is met, the terminal sends a first report to the network device, which can ensure the timeliness of the beam report. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0018] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0019] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0020] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0021] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0022] Figure 5 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0023] Figure 6A is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0024] Figure 6B is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0025] Figure 7A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0026] Figure 7B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0027] This disclosure provides communication methods, terminals, network devices, communication apparatuses, communication systems, and media.

[0028] In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal determining a first reference signal resource corresponding to the current beam in an event, the first reference signal resource being at least one of a second reference signal resource, the second reference signal resource being configured with tracking reference signal (TRS) information; and when the event is triggered, the terminal sending a first report to a network device.

[0029] In the above embodiments, the terminal determines at least one of the second reference signal resources configured with TRS information as the first reference signal resource corresponding to the current beam in the event, thereby determining whether the triggering event is triggered based on the accurate reference signal resource, ensuring the accuracy of the beam report; when the triggering event is met, the terminal sends a first report to the network device, which can ensure the timeliness of the beam report.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the second reference signal resource is determined based on the Transmission Configuration Indication (TCI) state indicated by the network device.

[0031] In the above embodiments, when the second reference signal resource indicated by the TCI status of the network device is configured with TRS information, the terminal determines at least one reference signal resource in the second reference signal resource as the first reference signal resource corresponding to the current beam in the event, so as to perform beam measurement and thus ensure the accuracy of beam measurement.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the second reference signal resource includes one or more reference signal resources.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal determines the first reference signal resource by at least one of the following: the terminal determines any one or more reference signal resources from the one or more reference signal resources as the first reference signal resource; the terminal determines one of the one or more reference signal resources as the first reference signal resource based on an instruction from the network device; the terminal determines the first reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines the last reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines a periodic reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines a non-periodic reference signal resource from the one or more reference signal resources as the first reference signal resource.

[0035] In the above embodiments, the terminal can determine the first reference signal resource in the above manner, thereby ensuring the accuracy of beam measurement.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the event includes at least one of the following: the quality of the current beam is lower than a first threshold; the quality of the candidate beam is higher than a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is higher than a third threshold.

[0038] In the above embodiments, the events include the above-mentioned content, which can ensure the accuracy of the triggered events and improve the timeliness of beam reporting.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal determines the reference signal resources corresponding to the candidate beam based on network device configuration.

[0040] Secondly, embodiments of this disclosure propose a communication method, the method comprising: a network device receiving a first report sent by a terminal, the first report being sent when a triggering event is met, wherein the current beam corresponds to a first reference signal resource, the first reference signal resource being at least one of a second reference signal resource, and the second reference signal resource being configured with TRS information.

[0041] In conjunction with some embodiments of the second aspect, in some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, the second reference signal resource includes one or more reference signal resources.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the first reference signal resource includes at least one of the following: any one or more reference signal resources determined by the terminal based on the one or more reference signal resources; one of the one or more reference signal resources indicated by the network device; the first reference signal resource among the one or more reference signal resources; the last reference signal resource among the one or more reference signal resources; a periodic reference signal resource among the one or more reference signal resources; and a non-periodic reference signal resource among the one or more reference signal resources.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0046] In conjunction with some embodiments of the second aspect, in some embodiments, the event includes at least one of the following: the quality of the current beam is lower than a first threshold; the quality of the candidate beam is higher than a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is higher than a third threshold.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the network device configures reference signal resources corresponding to the candidate beam.

[0048] Thirdly, this disclosure provides a terminal, comprising: a processing module, configured to determine a first reference signal resource corresponding to the current beam in an event, wherein the first reference signal resource is at least one of a second reference signal resource, and the second reference signal resource is configured with tracking reference signal (TRS) information; and a transceiver module, configured to send a first report to a network device when the event is triggered.

[0049] In conjunction with some embodiments of the third aspect, in some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0050] In conjunction with some embodiments of the third aspect, in some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0051] In conjunction with some embodiments of the third aspect, in some embodiments, the second reference signal resource includes one or more reference signal resources.

[0052] In conjunction with some embodiments of the third aspect, in some embodiments, the terminal determines the first reference signal resource by at least one of the following: the terminal determines any one or more reference signal resources from the one or more reference signal resources as the first reference signal resource; the terminal determines one of the one or more reference signal resources as the first reference signal resource based on the instruction of the network device; the terminal determines the first reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines the last reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines a periodic reference signal resource from the one or more reference signal resources as the first reference signal resource; the terminal determines a non-periodic reference signal resource from the one or more reference signal resources as the first reference signal resource.

[0053] In conjunction with some embodiments of the third aspect, in some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0054] In conjunction with some embodiments of the third aspect, in some embodiments, the event includes at least one of the following: the quality of the current beam is lower than a first threshold; the quality of the candidate beam is higher than a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is higher than a third threshold.

[0055] In conjunction with some embodiments of the third aspect, in some embodiments, the terminal configures the reference signal resources corresponding to the candidate beam based on the network device.

[0056] Fourthly, this disclosure provides a network device, including: a transceiver module, configured to receive a first report sent by a terminal, the first report being sent when a trigger event is met, wherein the current beam corresponds to a first reference signal resource, the first reference signal resource being at least one of a second reference signal resource, and the second reference signal resource being configured with TRS information.

[0057] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0058] In conjunction with some embodiments of the fourth aspect, in some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0059] In conjunction with some embodiments of the fourth aspect, in some embodiments, the second reference signal resource includes one or more reference signal resources.

[0060] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first reference signal resource includes at least one of the following: any one or more reference signal resources determined by the terminal based on the one or more reference signal resources; one of the one or more reference signal resources indicated by the network device; the first reference signal resource among the one or more reference signal resources; the last reference signal resource among the one or more reference signal resources; a periodic reference signal resource among the one or more reference signal resources; and a non-periodic reference signal resource among the one or more reference signal resources.

[0061] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0062] In conjunction with some embodiments of the fourth aspect, in some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0063] In conjunction with some embodiments of the fourth aspect, in some embodiments, the network device configures reference signal resources corresponding to the candidate beam.

[0064] Fifthly, embodiments of this disclosure provide a communication device comprising: one or more processors; wherein the processors are configured to execute the communication method of the first aspect.

[0065] In a sixth aspect, embodiments of this disclosure provide a communication device comprising: one or more processors; wherein the processors are configured to execute the communication method of the second aspect.

[0066] In a seventh aspect, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0067] Eighthly, embodiments of this disclosure provide a storage medium storing instructions, characterized in that, when the instructions are executed on a communication device, the communication device performs the method of the first aspect or the second aspect.

[0068] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first or second aspect.

[0069] In a tenth aspect, embodiments of this disclosure provide a computer program that, when executed by a communication device, causes the communication device to perform any of the aforementioned communication methods.

[0070] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in optional implementations of the first or second aspect.

[0071] It is understood that the aforementioned terminals, network devices, communication apparatuses, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0072] This disclosure provides embodiments of communication methods, terminals, network devices, communication apparatuses, communication systems, and storage media. In some embodiments, the terms communication method, information sending method, information receiving method, etc., can be used interchangeably.

[0073] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0074] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0075] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0076] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0077] In the embodiments disclosed herein, "multiple" refers to two or more.

[0078] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0079] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0080] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0081] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0082] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0083] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0084] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0085] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0086] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0087] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0088] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0089] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0090] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0091] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0092] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0093] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0094] In NR, especially when the communication frequency band is in frequency range 2 (above 7GHz), due to the rapid attenuation of high-frequency channels, beam-based transmission and reception are required to ensure coverage.

[0095] Network devices can be configured to perform periodic, semi-static, or non-periodic beam measurement reports. This means that terminals can perform beam measurements periodically, semi-statically, or non-periodically, and then report these beam measurements, depending on the network device's configuration.

[0096] However, in reality, changes in beam quality are readily apparent to the terminal. The length of the reporting period configured in the network device, or the timing of non-periodic reporting, may not be appropriate. If the reporting period is too short, the optimal K (K is a positive integer) beams might be reported twice, resulting in wasted signaling. If the reporting period is too long, beam changes might occur before the reporting time, impacting communication quality. Even with non-periodic reporting, the network device may trigger terminal reporting too early or too late, leading to wasted signaling or compromised communication quality.

[0097] In some embodiments, the current beam can be determined based on the indicated transmission configuration indication (TCI) state. However, the reference signal (RS) included in the indicated TCI state may fall into two categories: one is that the indicated TCI state only includes Type A and Type D, where the RSs corresponding to Type A and Type D are the same channel state information reference signal (CSI-RS) configured with a tracking reference signal (TRS); the other is that Type A is a CSI-RS configured with a TRS, and Type D is a CSI-RS configured with a repetition parameter. For the first case, where the RSs in the indicated TCI state are all the same CSI-RS configured with a TRS, since in related technologies, CSI-RS configured with a TRS cannot be used for beam measurement (but CSI-RS configured with repetition can), determining the RS corresponding to the current beam based on this CSI-RS is a problem that needs to be solved.

[0098] This disclosure provides a communication method in which a terminal determines at least one reference signal resource in a second reference signal resource configured with TRS information as the first reference signal resource corresponding to the current beam in an event, thereby determining whether a triggering event has been triggered based on accurate reference signal resources, ensuring the accuracy of beam reporting; when a triggering event is met, the terminal sends a first report to the network device, which can ensure the timeliness of beam reporting.

[0099] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0100] As shown in Figure 1, the communication system 100 includes at least one of a terminal 101 and a network device 102.

[0101] In some embodiments, terminal 101 may be user equipment (UE), and terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0102] In some embodiments, network device 102 may be a functional network element in a core network device. The core network device may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0103] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0104] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0105] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0106] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0107] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0108] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0109] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1C are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.

[0110] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0111] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a communication method, which includes:

[0112] Step S2101: The terminal determines the first reference signal resource.

[0113] In some embodiments, the first reference signal resource is the reference signal resource corresponding to the current beam in the event.

[0114] In some embodiments, the event is used to trigger the terminal to report a first report.

[0115] In some embodiments, an event may include triggering conditions satisfied by the current beam and / or candidate beams.

[0116] In some embodiments, the current beam may also be referred to as the serving beam. The candidate beam may also be referred to as the new beam, the target beam, the adjacent beam, etc.

[0117] In some embodiments, the terminal determines the first reference signal resource corresponding to the current beam in the event.

[0118] In some embodiments, the beam can be referred to as: spatial Rx parameter, quasi-co-location (QCL) type D, spatial setting, spatial reception filter, spatial transmission filter, spatial domain filter, transmission configuration indicator (TCI) state, joint TCI state, downlink TCI state (DL TCI state), uplink TCI state (DL TCI state), unified TCI state, common TCI state, spatial relation information, etc. The beam can be replaced with any of the above.

[0119] In some embodiments, the first reference signal resource is a reference signal resource used for beam measurement. That is, the terminal determines the first reference signal resource corresponding to the current beam for beam measurement.

[0120] In some embodiments, the first reference signal resource is at least one of the second reference signal resources, and the second reference signal resource is configured with TRS information.

[0121] In some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0122] In some embodiments, the terminal may determine the second reference signal resource based on the indicated TCI state. The indicated TCI state is the TCI state indicated to the terminal by the network device.

[0123] In some embodiments, the indicated TCI state is used to indicate a second reference signal resource. That is, the network device can directly indicate the second reference signal resource through the TCI state, and the terminal can use the indicated second reference signal resource as the first reference signal resource corresponding to the current beam for beam measurement.

[0124] In some embodiments, the network device may indicate the TCI state via a Medium Access Control (MAC CE) or MAC CE plus Downlink control information (DCI).

[0125] For example, a network device activates one or more TCI states via MAC CE, and the network device indicates one or more indicated TCI states via code points in DCI.

[0126] In some embodiments, the indicated TCI state may include at least one of the following: an indicated joint TCI state; an indicated DL TCI state; or an indicated UL TCI state.

[0127] In some embodiments, when the RSs of QCL Type A and QCL Type D indicated by the TCI state are both first CSI-RS configured with TRS information, the terminal can determine the reference signal resource corresponding to the first CSI-RS as the second reference signal resource for beam measurement. That is, the terminal can use the first CSI-RS configured with TRS information as the second reference signal resource for beam measurement.

[0128] In some embodiments, the second reference signal resource includes one or more reference signal resources.

[0129] For example, a second reference signal resource (a reference signal resource configured with TRS information) may belong to one or more sets of reference signal resources. Each set of reference signal resources may include one or more periodic reference signal resources, or one or more aperiodic reference signal resources, or a set of periodic reference signal resources and a set of aperiodic reference signal resources. For example, a set of reference signal resources may include two or four periodic reference signal resources.

[0130] In some embodiments, the first reference signal resource includes at least one of the following: a reference signal resource determined by a terminal based on the one or more reference signal resources; a reference signal resource determined by a network device based on the one or more reference signal resources; the first reference signal resource among the one or more reference signal resources; the last reference signal resource among the one or more reference signal resources; a periodic reference signal resource among the one or more reference signal resources; and an aperiodic reference signal resource among the one or more reference signal resources.

[0131] In some embodiments, the terminal determines a first reference signal resource by at least one of the following: the terminal determines any one or more reference signal resources from one or more reference signal resources as the first reference signal resource; the terminal determines one of the one or more reference signal resources as the first reference signal resource based on an instruction from a network device; the terminal determines the first reference signal resource from one or more reference signal resources as the first reference signal resource; the terminal determines the last reference signal resource from one or more reference signal resources as the first reference signal resource; the terminal determines a periodic reference signal resource from one or more reference signal resources as the first reference signal resource; the terminal determines a non-periodic reference signal resource from one or more reference signal resources as the first reference signal resource.

[0132] For example, the terminal may select any one or more reference signal resources from the second set of reference signal resources as the first reference signal resource for beam measurement. Alternatively, the TCI status indicated by the network device may be used to indicate the second reference signal resource, and the terminal may select any one or more reference signal resources from the second set of reference signal resources indicated by the network device as the first reference signal resource. This can also be understood as the terminal being able to arbitrarily select one or more reference signal resources as the first reference signal resource for beam measurement based on its own implementation.

[0133] For example, a network device determines a first reference signal resource from one or more reference signal resources in a second reference signal resource, and then indicates the first reference signal resource to the terminal. Based on the network device's indication, the terminal determines the first reference signal resource from the one or more reference signal resources and performs beam measurement. That is, the network device can explicitly indicate the first reference signal resource to the terminal. This can be done through RRC signaling and / or MAC CE; the network device can also indicate it through indication information, which can be included in the TCI status information.

[0134] For example, the terminal may use either the first or the last reference signal resource from one or more second reference signal resources as the first reference signal resource for beam measurement. The first reference signal resource can be the earliest in time (i.e., the earliest in the time domain) of the second reference signal resources. The last reference signal resource can be the latest in time (i.e., the latest in the time domain). For instance, if the second reference signal resources consist of four reference signal resources within two time slots, with each slot containing two reference signal resources, then the first reference signal resource is the one with the earliest symbol position in the earlier time slot, and the last reference signal resource is the one with the latest symbol position in the later time slot.

[0135] For example, the terminal can use a periodic reference signal resource from one or more of the second reference signal resources as the first reference signal resource for beam measurement. Furthermore, the terminal can use the first or last reference signal resource from the aforementioned periodic reference signal resources as the first reference signal resource.

[0136] For example, the terminal can use one or more aperiodic reference signal resources from the second reference signal resources as the first reference signal resource for beam measurement. Furthermore, the terminal can use the first or last of the aforementioned aperiodic reference signal resources as the first reference signal resource.

[0137] The communication method provided in this disclosure, when the RS indicated by the indicated TCI state is a CSI-RS that is only configured with TRS, allows the terminal to determine that the TRS is the RS corresponding to the current beam. The terminal can accurately determine the reference signal resources used for beam measurement, thereby ensuring the reliability of beam reports triggered based on trigger events.

[0138] In step S2102, when the trigger event is met, the terminal sends a first report to the network device.

[0139] In some embodiments, the network device receives a first report sent by the terminal.

[0140] In some embodiments, the first report may be, for example, a beam report, which may also be referred to as a beam measurement report.

[0141] In some embodiments, the first report is used to report a reference signal resource and / or the measurement results corresponding to the reference signal resource. The reference signal resource reported in the first report may include the first reference signal resource, or it may be another reference signal resource different from the first reference signal resource.

[0142] In some embodiments, the reference signal resources reported in the first report may include reference signal resources corresponding to the current beam and / or candidate beams.

[0143] In some embodiments, the first report includes at least one of the following: Reference Signal Resource ID (RS ID); Layer 1 reference signal receiving power (L1-RSRP); Layer 1 signal to interference plus noise ratio (L1-SINR); Capability index; Power headroom; Power backoff (MPE); Uplink transmission power; Event ID; TCI state ID.

[0144] The identifier of the reference signal resource included in the first report may be the identifier of the first reference signal resource or the identifier of other reference signal resources.

[0145] In some embodiments, the identifier of the first reference signal resource includes at least one of the following: a Synchronization Signal and PBCH block (SSB) identifier; and a Channel State Information Reference Signal (CSI-RS) identifier.

[0146] In some embodiments, the uplink transmission power may be, for example, power headroom and / or power backoff.

[0147] In some embodiments, the capability index can be the maximum number of supported SRS ports.

[0148] In some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0149] In some embodiments, the beam quality can be L1-RSRP, L1-SINR, or uplink transmit power, and this disclosure does not limit it.

[0150] In some embodiments, when the monitored current beam is a joint TCI state or a UL TCI state, and / or when the monitored candidate beam is to be used in a joint TCI state or a UL TCI state, the quality of the beam can be the uplink transmit power.

[0151] In some embodiments, the values ​​of the first threshold, the second threshold, and the third threshold can all be set according to actual conditions. The first threshold and the second threshold can be the same or different.

[0152] In some embodiments, the terminal determines the reference signal resources corresponding to the candidate beams based on the network device configuration.

[0153] In some embodiments, the event may include the current beam or a candidate beam. When the event is triggered to monitor a candidate beam, the terminal may determine the reference signal resource corresponding to the candidate beam based on the configuration of the network device.

[0154] In some embodiments, the terminal may send a beam report to the network device when the triggering event is met, based on the event and the determined first reference signal resource.

[0155] In some embodiments, the terminal may determine the first reference signal resource corresponding to the current beam included in the event, then measure the first reference signal resource, and determine whether the triggering condition is met based on the measurement result of the first reference signal resource. When the measurement result meets the triggering condition in the event, the terminal sends a beam report to the network device.

[0156] The communication method provided in this embodiment allows the terminal to determine at least one reference signal resource among the second reference signal resources configured with TRS information as the first reference signal resource corresponding to the current beam in the event, thereby determining whether the triggering event has been triggered based on the accurate reference signal resource and ensuring the accuracy of the beam report; when the triggering event is met, the terminal sends a first report to the network device, which can ensure the timeliness of the beam report.

[0157] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as a standalone embodiment, step S2102 may be implemented as a standalone embodiment, and step S2101 + step S2102 may be implemented as a standalone embodiment, but is not limited thereto.

[0158] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0159] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0160] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0161] In some embodiments, terms such as "reference signal resource" and "beam" may be used interchangeably.

[0162] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0163] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0164] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0165] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0166] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0167] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value (bool)) represented by true or false, or by a numerical comparison (e.g., a comparison with a predetermined value), but is not limited thereto.

[0168] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0169] Figure 3 is a schematic flowchart illustrating a communication method according to an embodiment of the present disclosure. The communication method shown in Figure 3 can be executed by a terminal, but is not limited thereto.

[0170] As shown in Figure 3, this disclosure relates to a communication method, which includes:

[0171] Step S3101: Determine the first reference signal resource corresponding to the current beam in the event.

[0172] In some embodiments, the event may include triggering conditions satisfied by the current beam and / or candidate beams. The terminal may determine a first reference signal resource corresponding to the current beam in the event, perform beam measurement based on the first reference signal resource, and determine whether the triggering conditions in the event are satisfied based on the measurement results; if the triggering conditions in the event are satisfied, the terminal sends a first report to the network device, which is used to report the measurement results of the reference signal resource and / or the reference signal resource.

[0173] In some embodiments, the first reference signal resource is at least one of the second reference signal resources, the second reference signal resource is determined based on the TCI state, the second reference signal resource is configured with TRS information, and the second reference signal resource may include one or more reference signal resources.

[0174] In some embodiments, the terminal may determine the first reference signal resource by at least one of the following: the terminal determines any one or more of the aforementioned one or more reference signal resources as the first reference signal resource; the terminal determines one of the aforementioned one or more reference signal resources as the first reference signal resource based on an instruction from the network device; the terminal determines the first of the aforementioned one or more reference signal resources as the first reference signal resource; the terminal determines the last of the aforementioned one or more reference signal resources as the first reference signal resource; the terminal determines a periodic reference signal resource among the aforementioned one or more reference signal resources as the first reference signal resource; the terminal determines a non-periodic reference signal resource among the aforementioned one or more reference signal resources as the first reference signal resource.

[0175] Step S3102: When the trigger event is met, send a first report to the network device.

[0176] In some embodiments, when the triggering conditions in the event are met, the terminal sends a first report to the network device, the first report being used to report the reference signal resources and / or the measurement results of the reference signal resources.

[0177] In some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0178] In some embodiments, the values ​​of the first threshold, the second threshold, and the third threshold can all be set according to actual conditions. The first threshold and the second threshold can be the same or different.

[0179] For example, when the quality of the current beam is below a first threshold, the terminal sends a first report to the network device. As another example, when the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold, the terminal sends a first report to the network device.

[0180] In some embodiments, the reference signal resources reported in the first report may include reference signal resources corresponding to the current beam and / or candidate beams.

[0181] In some embodiments, the first report includes at least one of the following: Reference Signal Resource ID (RS ID); Layer 1 reference signal receiving power (L1-RSRP); Layer 1 signal to interference plus noise ratio (L1-SINR); Capability index; Power headroom; Power backoff (MPE); Uplink transmission power; Event ID; TCI state ID.

[0182] The communication method provided in this embodiment allows the terminal to determine at least one reference signal resource among the second reference signal resources configured with TRS information as the first reference signal resource corresponding to the current beam in the event, thereby determining whether the triggering event has been triggered based on the accurate reference signal resource and ensuring the accuracy of the beam report; when the triggering event is met, the terminal sends a first report to the network device, which can ensure the timeliness of the beam report.

[0183] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. For example, step S3101 may be implemented as a separate embodiment, and step S3102 may be implemented as a separate embodiment, but are not limited thereto.

[0184] In some embodiments, step S3102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0185] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0186] Figure 4 is a schematic flowchart illustrating a communication method according to an embodiment of the present disclosure. The communication method shown in Figure 4 can be executed by a network device, but is not limited thereto.

[0187] As shown in Figure 4, this disclosure relates to a communication method, which includes:

[0188] Step S4101: Send instruction information to the terminal.

[0189] In some embodiments, the network device may send indication information to the terminal, which is used to indicate the TCI status.

[0190] In some embodiments, the terminal may receive a TCI state indicated by a network device, and the terminal may use the second reference signal resource corresponding to the TCI state as the second reference signal resource.

[0191] In some embodiments, the terminal determines a first reference signal resource from the second reference signal resource as the reference signal resource corresponding to the current beam in the event, for beam measurement. When the trigger event is met, the terminal sends a first report to the network device.

[0192] Step S4102: Receive the first report sent by the receiving terminal.

[0193] In some embodiments, the network device receives a first report sent by the terminal.

[0194] The first report is sent when a trigger event is met. In the event, the current beam corresponds to a first reference signal resource, which is at least one of the second reference signal resources. The second reference signal resource is configured with TRS information.

[0195] In some embodiments, the first report may also be referred to as the beam report.

[0196] In some embodiments, the first report includes the identification of a reference signal resource and / or the measurement results of the reference signal resource.

[0197] In some embodiments, the first report includes at least one of the following: Reference Signal Resource ID (RS ID); Layer 1 reference signal receiving power (L1-RSRP); Layer 1 signal to interference plus noise ratio (L1-SINR); Capability index; Power headroom; Power backoff (MPE); Uplink transmission power; Event ID; TCI state ID.

[0198] In some embodiments, the network device can obtain accurate beam measurement results based on the first report submitted by the terminal.

[0199] The communication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. For example, step S4101 may be implemented as a separate embodiment, and step S4102 may be implemented as a separate embodiment, but are not limited thereto.

[0200] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0201] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0202] Figure 5 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiments of the present disclosure relate to a communication method, which includes:

[0203] Step S5101: The terminal sends a first report to the network device.

[0204] In some embodiments, when a triggering event is met, the terminal sends a first report to the network device.

[0205] In some embodiments, the network device receives a first report sent by the terminal.

[0206] In some embodiments, the reference signal resources reported in the first report may include reference signal resources corresponding to the current beam and / or candidate beams.

[0207] In some embodiments, the first report includes at least one of the following: Reference Signal Resource ID (RS ID); Layer 1 reference signal receiving power (L1-RSRP); Layer 1 signal to interference plus noise ratio (L1-SINR); Capability index; Power headroom; Power backoff (MPE); Uplink transmission power; Event ID; TCI state ID.

[0208] In some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0209] In some embodiments, the values ​​of the first threshold, the second threshold, and the third threshold can all be set according to actual conditions. The first threshold and the second threshold can be the same or different.

[0210] In some embodiments, the terminal may determine the first reference signal resource corresponding to the current beam included in the event, then measure the first reference signal resource, and determine whether the triggering condition is met based on the measurement result of the first reference signal resource. When the measurement result meets the triggering condition in the event, the terminal sends a beam report to the network device.

[0211] In some embodiments, the network device receives a first report sent by the terminal, and the network device can obtain accurate beam measurement results based on the first report reported by the terminal.

[0212] The optional implementation of step S5101 can be found in step S2102 of Figure 2, step S3102 of Figure 3, step S4101 of Figure 4, and other related parts in the embodiments involved in Figures 2, 3, and 4, which will not be repeated here.

[0213] In some embodiments, the above methods may include the methods of the embodiments described above on the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0214] This disclosure provides a communication method in which, in beam reporting initiated by the UE or beam reporting triggered by an event, the terminal determines the TRS as the RS corresponding to the current beam, so that when the RS indicated by the indicated TCI state is a CSI-RS that is only configured with TRS, the terminal can clearly identify the RS corresponding to the current beam in the triggering event, thereby ensuring the reliability of the triggering event.

[0215] In some embodiments, the terminal determines a first reference signal resource, which is the reference signal resource corresponding to the current beam in the event (also known as the triggering condition). Based on the first reference signal resource and the event, the terminal sends a beam report when the triggering condition of the event is met.

[0216] In some embodiments, the beam can be referred to as a beam, spatial Rx parameter, quasi-co-location (QCL) Type D, spatial setting, spatial reception filter, spatial transmission filter, spatial domain filter, transmission configuration indicator (TCI) state, joint TCI state, downlink TCI state (DL TCI state), uplink TCI state (DL TCI state), unified TCI state, common TCI state, spatial relation information, etc. The beam can be replaced with any of the above.

[0217] In some embodiments, the terminal determines the first reference signal resource based on the indicated TCI state.

[0218] In some embodiments, the indicated TCI state may include the indicated joint TCI state, the DL TCI state, or the UL TCI state.

[0219] In some embodiments, when the RSs of QCL Type A and QCL Type D indicated by the TCI state are both first CSI-RSs configured with TRS information, the terminal determines the first CSI-RS as the first reference signal resource. That is, the terminal uses the first CSI-RS configured with TRS information as the first reference signal resource for beam measurement.

[0220] In some embodiments, a TRS may correspond to one or more resource sets. Each resource set includes two periodic resources or four periodic resources, or each resource set includes one periodic resource set and one non-periodic resource set.

[0221] In some embodiments, the terminal may determine which resource the measurement is based on using at least one of the following methods:

[0222] Method 1: The terminal performs beam measurement based on TRS.

[0223] That is, it is based on the terminal, without specifying which resource is being used for the measurement.

[0224] Method 2: The terminal performs beam measurement based on a default resource.

[0225] For example, the terminal can perform beam measurement based on the first resource.

[0226] For example, the terminal can perform beam measurement based on the last resource.

[0227] Here, "first resource" can be the earliest in time, and "last resource" can be the latest in time. "Time" here refers to the resource's temporal location.

[0228] Method 3: The terminal performs beam measurement based on a default resource.

[0229] For example, the terminal can perform beam measurements based on aperiodic resources or periodic resources.

[0230] Methods two and three can be used independently or in combination.

[0231] Method 4: Configure the network device terminal to perform beam measurement based on which resource.

[0232] That is, the network device explicitly indicates to the terminal which resource to use for beam measurement.

[0233] In some embodiments, the beam report includes at least one of the following: RS ID: SSB ID, CSI-RS ID; L1-RSRP; L1-SINR; Capability index: the maximum number of supported SRS ports; Power headroom; MPE: Power backoff; UL transmission power: such as power headroom-power backoff; Event ID; TCI state ID.

[0234] In some embodiments, the current beam may also be referred to as the serving beam.

[0235] In some embodiments, an event may include at least one of the following: the current beam quality is below a threshold; the candidate beam quality is above a threshold; or the candidate beam quality is one threshold higher than the current beam quality.

[0236] The quality can be L1-RSRP, L1-SINR, or it can also be the uplink transmit power.

[0237] When the monitored current beam is in a joint TCI state or a UL TCI state, and / or when the monitored candidate beam is intended for use in a joint TCI state or a UL TCI state, the quality can be the uplink transmit power.

[0238] In some embodiments, if the event includes monitoring candidate beams, the terminal determines the reference signal resources corresponding to the candidate beams based on the base station configuration.

[0239] In this embodiment of the disclosure, by proposing a method for the terminal to determine the TRS as the RS corresponding to the current beam, it is ensured that in the event-triggered beam report, the terminal can determine whether the triggering event has been triggered based on the accurate current beam, thus ensuring the timeliness and effectiveness of the beam report.

[0240] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0241] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0242] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0243] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0244] Figure 6A is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 6A, the terminal 6100 may include a processing module 6101 and a transceiver module 6102. In some embodiments, the processing module 6101 is used to determine a first reference signal resource corresponding to the current beam in an event. In some embodiments, the transceiver module 6102 is used to send a first report to a network device when the event is triggered. Optionally, the processing module is used to perform at least one of the processing steps (e.g., step S2101, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here. The transceiver module is used to perform at least one of the processing steps (e.g., step S2102, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here.

[0245] In some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0246] In some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0247] In some embodiments, the second reference signal resource includes one or more reference signal resources.

[0248] In some embodiments, the first reference signal resource includes at least one of the following: a reference signal resource determined by the terminal based on the one or more reference signal resources; a reference signal resource determined by the network device based on the one or more reference signal resources; a first reference signal resource among the one or more reference signal resources; a last reference signal resource among the one or more reference signal resources; a periodic reference signal resource among the one or more reference signal resources; and a non-periodic reference signal resource among the one or more reference signal resources.

[0249] In some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0250] In some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0251] In some embodiments, the terminal determines the reference signal resources corresponding to the candidate beam based on network device configuration.

[0252] Figure 6B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 6B, the network device 6200 may include a transceiver module 6201. In some embodiments, the transceiver module 6201 receives a first report sent by a terminal. Optionally, the transceiver module is used to perform at least one of the processing steps (such as step S2102, but not limited thereto) performed by the network device in any of the above methods, which will not be described in detail here.

[0253] In some embodiments, the network device may further include a processing module for performing at least one of the processing steps performed by the network device in any of the above methods, which will not be elaborated here.

[0254] In some embodiments, the second reference signal resource is determined based on the TCI state indicated by the network device.

[0255] In some embodiments, the TCI state includes at least one of the following: an indicated joint TCI state; an indicated downlink TCI state; and an indicated uplink TCI state.

[0256] In some embodiments, the second reference signal resource includes one or more reference signal resources.

[0257] In some embodiments, the first reference signal resource includes at least one of the following: any one or more reference signal resources determined by the terminal based on the one or more reference signal resources; a reference signal resource among the one or more reference signal resources indicated by the network device; the first reference signal resource among the one or more reference signal resources; the last reference signal resource among the one or more reference signal resources; a periodic reference signal resource among the one or more reference signal resources; and a non-periodic reference signal resource among the one or more reference signal resources.

[0258] In some embodiments, the first report includes at least one of the following: an identifier of a reference signal resource; Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); a capability index; power margin; power back-off amount; uplink transmission power; and an event identifier.

[0259] In some embodiments, the event includes at least one of the following: the quality of the current beam is below a first threshold; the quality of the candidate beam is above a second threshold; the difference between the quality of the candidate beam and the quality of the current beam is above a third threshold.

[0260] In some embodiments, the network device configures reference signal resources corresponding to the candidate beam.

[0261] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0262] Figure 7A is a schematic diagram of the structure of the communication device 7100 proposed in an embodiment of this disclosure. The communication device 7100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0263] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 7100 can be used to execute any of the above methods. Optionally, one or more processors 7101 can be used to invoke instructions to cause the communication device 7100 to execute any of the above methods.

[0264] In some embodiments, the communication device 7100 further includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps (e.g., step S2101, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 7101 performs at least one of other steps (e.g., step S2102, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0265] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Optionally, all or part of the memories 7103 may be located outside the communication device 7100. In optional embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memories 7103 and can be used to receive data from the memories 7103 or other devices, and to send data to the memories 7103 or other devices. For example, the interface circuits 7104 can read data stored in the memories 7103 and send the data to the processor 7101.

[0266] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0267] Figure 7B is a schematic diagram of the structure of the chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, the schematic diagram of the chip 7200 shown in Figure 7B can be referenced, but is not limited thereto.

[0268] Chip 7200 includes one or more processors 7201. Chip 7200 is used to perform any of the above methods.

[0269] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Optionally, all or part of the memories 7203 may be located outside chip 7200. Optionally, interface circuit 7202 is connected to memory 7203, and interface circuit 7202 can be used to receive data from memory 7203 or other devices, and interface circuit 7202 can be used to send data to memory 7203 or other devices. For example, interface circuit 7202 can read data stored in memory 7203 and send the data to processor 7201.

[0270] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., step S2101, but not limited thereto). For example, the interface circuit 7202 performing the communication steps such as sending and / or receiving in the above-described method means that the interface circuit 7202 performs data interaction between the processor 7201, the chip 7200, the memory 7203, or the transceiver device. In some embodiments, the processor 7201 performs at least one of other steps (e.g., step S2102, but not limited thereto).

[0271] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0272] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0273] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0274] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method includes: The terminal determines the first reference signal resource corresponding to the current beam in the event. The first reference signal resource is at least one of the second reference signal resources. The second reference signal resource is configured with tracking reference signal (TRS) information. When the event is triggered, the terminal sends a first report to the network device.

2. The method according to claim 1, characterized in that, The second reference signal resource is determined based on the Transmission Configuration Indication (TCI) status indicated by the network device.

3. The method according to claim 2, characterized in that, The TCI status includes at least one of the following: The indicated joint TCI status; Indicates the downlink TCI status; The indicated uplink TCI status.

4. The method according to any one of claims 1 to 3, characterized in that, The second reference signal resource includes one or more reference signal resources.

5. The method according to claim 4, characterized in that, The terminal determines the first reference signal resource, including at least one of the following: The terminal determines any one or more of the one or more reference signal resources as the first reference signal resource; The terminal determines one of the one or more reference signal resources as the first reference signal resource based on the instruction of the network device; The terminal determines the first reference signal resource among the one or more reference signal resources as the first reference signal resource; The terminal determines the last reference signal resource among the one or more reference signal resources as the first reference signal resource; The terminal identifies the periodic reference signal resource among the one or more reference signal resources as the first reference signal resource; The terminal identifies the non-periodic reference signal resource among the one or more reference signal resources as the first reference signal resource.

6. The method according to any one of claims 1 to 5, characterized in that, The first report includes at least one of the following: Identification of reference signal resources; Layer 1 reference signal received power L1-RSRP; Layer 1 signal interference-to-noise ratio (L1-SINR); Capability Index; Power margin; Power back-off amount; Uplink transmission power; Event identifier.

7. The method according to any one of claims 1 to 5, characterized in that, The event includes at least one of the following: The current beam quality is below the first threshold; The quality of the candidate beam is higher than the second threshold; The difference between the quality of the candidate beam and the quality of the current beam is higher than the third threshold.

8. The method according to claim 7, characterized in that, The terminal determines the reference signal resources corresponding to the candidate beam based on the network device configuration.

9. A communication method, characterized in that, The method includes: The network device receives a first report sent by the terminal. The first report is sent when a trigger event is met. In the event, the current beam corresponds to a first reference signal resource. The first reference signal resource is at least one of the second reference signal resources, and the second reference signal resource is configured with TRS information.

10. The method according to claim 9, characterized in that, The second reference signal resource is determined based on the TCI status indicated by the network device.

11. The method according to claim 10, characterized in that, The TCI status includes at least one of the following: The indicated joint TCI status; Indicates the downlink TCI status; The indicated uplink TCI status.

12. The method according to any one of claims 9 to 11, characterized in that, The second reference signal resource includes one or more reference signal resources.

13. The method according to claim 12, characterized in that, The first reference signal resource includes at least one of the following: The terminal determines any one or more reference signal resources based on the one or more reference signal resources; The network device indicates one of the one or more reference signal resources; The first reference signal resource among the one or more reference signal resources; The last of the one or more reference signal resources; Periodic reference signal resources among the one or more reference signal resources; Non-periodic reference signal resources among the one or more reference signal resources.

14. The method according to any one of claims 9 to 13, characterized in that, The first report includes at least one of the following: Identification of reference signal resources; Layer 1 reference signal received power L1-RSRP; Layer 1 signal interference-to-noise ratio (L1-SINR); Capability Index; Power margin; Power back-off amount; Uplink transmission power; Event identifier.

15. The method according to any one of claims 9 to 13, characterized in that, The event includes at least one of the following: The current beam quality is below the first threshold; The quality of the candidate beam is higher than the second threshold; The difference between the quality of the candidate beam and the quality of the current beam is higher than the third threshold.

16. The method according to claim 15, characterized in that, The network device configures the reference signal resources corresponding to the candidate beam.

17. A terminal, characterized in that, include: The processing module is used to determine the first reference signal resource corresponding to the current beam in the event, wherein the first reference signal resource is at least one of the second reference signal resources, and the second reference signal resource is configured with tracking reference signal (TRS) information. The transceiver module is used to send a first report to the network device when the event is triggered.

18. A network device, characterized in that, include: The transceiver module is used to receive a first report sent by the terminal. The first report is sent when a trigger event is met. In the event, the current beam corresponds to a first reference signal resource. The first reference signal resource is at least one of the second reference signal resources, and the second reference signal resource is configured with TRS information.

19. A communication device, characterized in that, include: One or more processors; The processor is used to execute the method according to any one of claims 1 to 8.

20. A communication device, characterized in that, include: One or more processors; The processor is used to execute the method according to any one of claims 9 to 16.

21. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the method of any one of claims 1 to 8, and the network device is configured to implement the method of any one of claims 9 to 16.

22. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1 to 8 or the method as described in any one of claims 9 to 16.

23. A program product, characterized in that, include: A computer program, when executed by a communication device, causes the communication device to perform the method as described in any one of claims 1 to 8 or the method as described in any one of claims 9 to 16.

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