Communication method, terminal, network equipment and communication system

Abstract

The invention relates to a communication method, a terminal, network equipment and a communication system. The communication method comprises: when a first condition is satisfied, a terminal sends first information, the first information being used for determining a first QCL parameter. According to the embodiment of the invention, the reporting of the beam report based on event triggering can be realized, so that the signaling overhead is reduced.

Description

Communication method, terminal, network equipment and communication system Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, a terminal, a network device, and a communication system. Background Art

[0002] In New Radio (NR), especially in operating frequency range 2, beam-based transmission and reception are required to ensure coverage.

[0003] Summary of the Invention

[0004] How to implement event-triggered beam reporting and how to reduce signaling overhead and latency are issues that need to be addressed.

[0005] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a communication system.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, the method comprising: when a first condition is met, a terminal sends first information to a network device, where the first information is used to determine a first QCL parameter.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, the method comprising: when a first condition is met, a network device receives first information sent by a terminal, the first information being used to determine a first QCL parameter.

[0008] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed, which includes: when a first condition is met, the terminal sends first information, where the first information is used to determine a first QCL parameter; and the network device receives the first information sent by the terminal.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a transceiver module, configured to send first information when a first condition is met, wherein the first information is used to determine a first QCL parameter.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module, configured to obtain first information when a first condition is met, wherein the first information is used to determine a first QCL parameter.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the processor is configured to execute the communication method of the first aspect.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the processor is used to execute the communication method of the second aspect.

[0013] According to an eighth aspect of an embodiment 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 a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes the communication method of any one of the first and second aspects.

[0015] Through the embodiments of the present disclosure, event-triggered beam reporting can be implemented, thereby reducing signaling overhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0017] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0018] FIG2 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0019] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.

[0020] FIG4A is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0021] FIG4B is a flow chart illustrating a communication method according to an embodiment of the present disclosure.

[0022] FIG5 is an interactive diagram illustrating a communication method according to an embodiment of the present disclosure.

[0023] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure.

[0024] FIG6B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure.

[0025] FIG7A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0026] FIG7B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a communication system.

[0028] In a first aspect, an embodiment of the present disclosure proposes that when a first condition is met, the terminal sends first information to the network device, where the first information is used to determine a first QCL parameter.

[0029] In the above embodiment, by sending the first information when an event is triggered, the first QCL parameter in this case is determined based on the content of the first information, so that the first QCL parameter to be switched or adjusted can be clearly determined.

[0030] In combination with some embodiments of the first aspect, in some embodiments, the first information includes: an identifier of a first reference signal resource, the first reference signal resource being the reference signal resource corresponding to the first QCL parameter; a unified transmission configuration indication TCI state type; an applicable scope of the TCI state corresponding to the first reference signal resource; an event identifier, the event being an event that triggers the terminal to send the first information; and parameters corresponding to the first reference signal resource.

[0031] In the above embodiment, the selected first QCL parameter can be clarified through the above content included in the first information, thereby avoiding the situation where the first QCL parameter cannot be determined due to insufficient information or uncertainty.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the identifier of the first reference signal resource includes: a synchronization signal block SSB identifier, and / or a channel state information reference signal CSI-RS identifier.

[0033] In the above embodiment, based on this, it is possible to determine the corresponding first QCL parameter through the reference signal resource identifier.

[0034] In combination with some embodiments of the first aspect, in some embodiments, when the SSB is identified as a non-service cell, the first information includes the index of the non-service cell in the physical cell identifier PCI list.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the type of the unified TCI state includes:

[0036] Joint TCI status, and / or independent TCI status.

[0037] In the above embodiment, the first information includes content of a unified TCI status type, which can achieve unified type determination of the beam.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: joint TCI state; downlink TCI state; uplink TCI state.

[0039] In combination with some embodiments of the first aspect, in some embodiments, the applicable scope of the TCI state includes an uplink TCI state or a joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin; power backoff amount; the maximum number of supported sounding reference signal SRS antenna ports.

[0040] In the above embodiment, the reason for determining the first QCL parameter may be inferred by referring to the specific content corresponding to the reference signal resource.

[0041] With reference to some embodiments of the first aspect, in some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0042] In the above embodiment, the same reference signal resource may be used for different time departure types.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the parameters corresponding to the first reference signal resource include at least one of the following: the layer 1 reference signal received power L1-RSRP corresponding to the first reference signal resource; the layer 1 signal to interference plus noise ratio L1-SINR corresponding to the first reference signal resource.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in second information, and the second information is information used for random access.

[0045] In the above embodiment, the network device may determine the first QCL parameter through the second information.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the random access process corresponding to the second information includes at least one of the following: random access based on contention-free; random access based on contention.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in a scheduling request.

[0048] In the above embodiment, the network device may determine the first QCL parameter through a scheduling request.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0050] In the above embodiment, the network device can determine the corresponding SSB or CSI-RS based on the scheduling request and the corresponding mapping relationship with the SSB or CSI-RS, and then determine the first QCL parameter corresponding to the SSB or CSI-RS identifier.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in a scheduling request and an uplink shared channel media access control unit PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried on a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH for configuring authorization.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the first condition includes an event of network device configuration.

[0054] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0055] When the first condition is met, the network device receives first information sent by the terminal, where the first information is used to determine a first QCL parameter.

[0056] In the above embodiment, when an event is triggered, the network device obtains information for determining the first QCL parameter, thereby achieving determination of the first QCL parameter.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following: an identifier of a first reference signal resource, the first reference signal resource being the reference signal resource corresponding to the first QCL parameter; a unified transmission configuration indication TCI state type; an applicable scope of the TCI state corresponding to the first reference signal resource; an event identifier, the event being the event that triggers the terminal to send the first information; and a parameter corresponding to the first reference signal resource.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the identifier of the first reference signal resource includes: a synchronization signal block SSB identifier, and / or a channel state information reference signal CSI-RS identifier.

[0059] In combination with some embodiments of the second aspect, in some embodiments, when the SSB is identified as a non-service cell, the first information includes the index of the non-service cell in the physical cell identifier PCI list.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the type of the unified TCI state includes: a joint TCI state, and / or an independent TCI state.

[0061] In combination with some embodiments of the second aspect, in some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: joint TCI state; downlink TCI state; uplink TCI state.

[0062] In combination with some embodiments of the second aspect, in some embodiments, the applicable scope of the TCI state includes an uplink TCI state or a joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin; power backoff amount; the maximum number of supported sounding reference signal SRS antenna ports.

[0063] With reference to some embodiments of the second aspect, in some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0064] In combination with some embodiments of the second aspect, in some embodiments, the parameters corresponding to the first reference signal resource include at least one of the following: the layer 1 reference signal received power L1-RSRP corresponding to the first reference signal resource; the layer 1 signal to interference plus noise ratio L1-SINR corresponding to the first reference signal resource.

[0065] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in second information, and the second information is information used for random access.

[0066] In combination with some embodiments of the second aspect, in some embodiments, the random access process corresponding to the second information includes at least one of the following: random access based on contention-free; random access based on contention.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a scheduling request.

[0068] In combination with some embodiments of the second aspect, in some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0069] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a scheduling request and an uplink shared channel media access control unit PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0070] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried on a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH configured with authorization.

[0071] In combination with some embodiments of the second aspect, in some embodiments, the first condition includes an event of network device configuration.

[0072] In a third aspect, an embodiment of the present disclosure proposes a communication method, which includes: when a first condition is met, the terminal sends first information, where the first information is used to determine a first QCL parameter; and the network device receives the first information sent by the terminal.

[0073] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, comprising: a transceiver module, configured to send first information when a first condition is met, wherein the first information is used to determine a first QCL parameter.

[0074] In a fifth aspect, an embodiment of the present disclosure proposes a network device, including: a transceiver module, used to obtain first information when a first condition is met, and the first information is used to determine a first QCL parameter.

[0075] In a sixth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the processor is used to execute the communication method of the first aspect.

[0076] In a seventh aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the processor is used to execute the communication method of the second aspect.

[0077] In an eighth aspect, an embodiment of the present disclosure proposes a communication system, comprising: 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.

[0078] In a ninth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when the instructions are executed on a communication device, enables the communication device to execute any one of the communication methods of the first aspect and the second aspect.

[0079] It is understandable that the above-mentioned terminal, access network device, first network element, second network element, core network device, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0080] The present disclosure provides communication methods, terminals, network devices, and systems. In some embodiments, the terms "communication method" and "information processing method" and "data processing method" are interchangeable; the terms "communication device" and "information processing device" and "data processing device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0081] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0082] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0083] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0084] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0085] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0086] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0087] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0088] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0089] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0090] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0091] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0092] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0093] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

[0094] 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", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0095] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0096] 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", "bandwidth part (BWP)" and the like may be used interchangeably.

[0097] 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, client, etc. can be used interchangeably.

[0098] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0099] 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, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0100] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0101] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0102] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0103] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0104] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0105] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0106] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0107] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0108] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0109] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0110] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element 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).

[0111] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0112] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0113] The embodiments of the present disclosure 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0114] In New Radio (NR), especially in frequency range 2, since high-frequency channels attenuate quickly, communication based on beam transmission and reception is required to ensure coverage.

[0115] In the discussion of R15 or R16, beam indication signaling includes Media Access Control (MAC CE) and downlink control information (DCI).

[0116] In some embodiments, the beams of the physical downlink control channel (PDCCH) and the physical uplink control channel (PUCCH) are indicated by MAC CE, and the physical downlink shared channel (PUSCH) and the physical uplink shared channel (PUSCH) are indicated by DCI.

[0117] In some embodiments, the MAC CE or DCI is also used to indicate other reference signals, including, for example, a Channel State Information Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), or a Tracking Reference Signal (TRS). Each channel or reference signal beam is independently indicated.

[0118] In the discussion of R17, the concept of common beam (unified TCI state) was proposed. Common beam means that multiple channels or reference signals use the same beam. For example, a common beam for multiple channels or reference signals is indicated by using a beam indication signaling.

[0119] In some embodiments, beam reporting is based on base station configuration or triggering. However, the terminal is the first to determine whether a beam update is needed through measurement. In this case, if the network device configures periodic beam reporting, a period that is too short may result in multiple consecutive beam reports not being updated, increasing beam report signaling overhead. A period that is too long may delay the timely transmission of beam information updates, increasing latency.

[0120] In some embodiments, in order to reduce the signaling overhead and delay of beam reporting, a beam reporting method initiated by the terminal based on event triggering is proposed.

[0121] However, the specific content of the beam report initiated by the terminal is not yet clear.

[0122] Based on this, the embodiments of the present disclosure propose a communication method that enables a terminal and a network device to determine a first QCL parameter based on the report content, thereby reducing the overhead of beam indication signaling and the delay of beam updates.

[0123] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0124] Step S2101: Terminal 101 sends first information.

[0125] In some embodiments, network device 102 receives first information.

[0126] In some embodiments, the first information is used to determine a first QCL parameter.

[0127] In some embodiments, the first information is used by the network device 102 to determine a first QCL parameter.

[0128] In some embodiments, the first information is used by the terminal 101 to determine a first QCL parameter.

[0129] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0130] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0131] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0132] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0133] In some embodiments, the new beam can be understood as being different from the current beam. For example, if the terminal 101 finds that the quality of the current beam is poor based on the measurement results of the current beam and determines that a beam switch is about to be performed, the target beam to be used for the beam switch can be referred to as the new beam.

[0134] In some embodiments, a beam includes at least one of the following: a spatial Rx parameter, a Quasi Co-location (QCL) Type D, a spatial setting, a spatial reception filter, a spatial transmission filter, a spatial domain filter, a Transmission Configuration Indicator (TCI) state, a joint TCI state, a downlink TCI state (DL TCI) state, an uplink TCI state (DL TCI) state, a unified TCI state, a common TCI state, and spatial relation information. A beam may be replaced with any of the above.

[0135] In some embodiments, the QCL parameters include QCL type D: spatial reception parameters.

[0136] It will be appreciated that the beam can be exchanged with the QCL parameters.

[0137] In some embodiments, the QCL parameters may be referred to as QCL assumptions.

[0138] It will be appreciated that the beam can be replaced with the QCL assumption.

[0139] In some embodiments, the QCL parameters further include type A, type B, and type C, wherein type A, type B, and type C include at least one of average delay, delay spread, doppler shift, and doppler spread.

[0140] It can be understood that the beam can also be replaced with any one of type A, type B, and type C.

[0141] It can be understood that by defining the above-mentioned new beam type, the terminal 101 can determine the corresponding type of new beam in different communication scenarios.

[0142] It should be noted that the embodiments of the present disclosure exemplarily describe the beam through QCL parameters.

[0143] It should be noted that the first QCL parameter of the embodiment of the present disclosure may be understood as a new beam in some embodiments.

[0144] It can be understood that the first information is used to determine the first QCL parameter, including, for example, determining the content included in the first information and determining the corresponding first QCL parameter based on the content.

[0145] In some embodiments, the first information includes content for determining the first QCL parameter.

[0146] Optionally, the first information includes at least one of the following: an identifier of the first reference signal resource, a unified TCI state type, an applicable scope of the TCI state corresponding to the first reference signal resource, an event identifier, and a parameter corresponding to the first reference signal resource.

[0147] Optionally, the event is an event that triggers the terminal 101 to send the first information.

[0148] Optionally, the first reference signal resource is a reference signal resource corresponding to the first QCL parameter.

[0149] It is understood that the first QCL parameter can be determined by one or more of the contents included in the first information. This includes, for example, determining the first QCL parameter by using a reference signal resource identifier corresponding to the first QCL parameter. The first QCL parameter can also be determined by combining the reference signal resource identifier corresponding to the first QCL parameter and an event identifier that triggers the sending of the first information.

[0150] In some embodiments, the first reference signal resource identifier includes: a synchronization signal block (Synchronization Signal and PBCH block, SSB) identifier, and / or a channel state indication information reference signal (Channel State Information Reference Signal, CSI-RS) identifier.

[0151] In some embodiments, when the first reference signal resource identifier is an SSB identifier, the first information further includes a serving cell identifier or a non-serving cell identifier corresponding to the SSB identifier.

[0152] It can be understood that the additional Physical Cell Identifier (PCI) list includes PCIs of multiple neighboring cells and the index corresponding to each PCI.

[0153] Based on this, in some embodiments, when the cell corresponding to the SSB identifier is a non-serving cell, the first information includes the index of the non-serving cell in an additional physical cell identifier PCI list.

[0154] Therefore, the corresponding neighboring cell PCI can be determined through the index in the PCI list, and then the corresponding first QCL parameter can be determined.

[0155] In some embodiments, the type of unified TCI state may include: joint TCI state, and / or independent TCI state.

[0156] Optionally, the first information includes a type of unified TCI state, and the type of unified TCI state includes a joint TCI state or a separate TCI state. The unified TCI state type included in the first information is a unified TCI state type reported by the terminal to the network device based on its own measurement. For example, if the terminal determines based on its own measurement that the QCL parameter corresponding to the reference signal resource can be applied to both uplink and downlink TCI states, then the unified TCI state type included in the first information is a joint TCI state. For example, if the terminal determines based on its own measurement that the QCL parameter corresponding to the reference signal resource can be applied to the downlink TCI state but not to the uplink TCI state, then the unified TCI state type included in the first information is a separate TCI state.

[0157] In some embodiments, the TCI state is used to indicate the first reference signal resource identifier corresponding to the QCL parameter, and the applicable scope of the TCI state includes at least one of the following: a joint TCI state, a downlink TCI state, or an uplink TCI state.

[0158] In some embodiments, the first information includes that the unified TCI state type is a joint TCI state, then the first information may no longer include the applicable scope of the TCI state, because the unified TCI state type is a joint TCI state, which means that the applicable scope of the TCI state is a joint TCI state, that is, it is applicable to the transmission of both uplink and downlink channels and / or reference signals.

[0159] In some embodiments, the network device 102 configures the unified TCI state type as a joint TCI state, and the first information includes that the unified TCI state type is a joint TCI state. Then, the first information may no longer include the applicable scope of the TCI state, because the type of the unified TCI state is a joint TCI state, which means that the applicable scope of the TCI state is a joint TCI state, that is, it is applicable to the transmission of both uplink and downlink channels and / or reference signals.

[0160] In some embodiments, the network device 102 configures the unified TCI state type as a joint TCI state, and the first information does not include indication information of the unified TCI state type. Then, the first information may not include the applicable scope of the TCI state, because the unified TCI state type configured by the network device is a joint TCI state and the terminal does not report a different unified TCI state type, which means that the applicable scope of the TCI state is a joint TCI state, that is, it is applicable to the transmission of both uplink and downlink channels and / or reference signals.

[0161] In some embodiments, the network device 102 configures the unified TCI state type as a joint TCI state, and the first information includes that the unified TCI state type is an independent TCI state. Alternatively, the first information may include that the applicable scope of the TCI state is a downlink TCI state, i.e., applicable only to the transmission of downlink channels and / or reference signals; or the first information may include that the applicable scope of the TCI state is an uplink TCI state, i.e., applicable only to the transmission of uplink channels and / or reference signals. This is because the unified TCI state type reported by the terminal is an independent TCI state.

[0162] In some embodiments, the first information includes that the unified TCI state type is an independent TCI state, then the first information may include that the applicable scope of the TCI state is a downlink TCI state, that is, it is only applicable to the transmission of downlink channels and / or reference signals; or then the first information may include that the applicable scope of the TCI state is an uplink TCI state, that is, it is only applicable to the transmission of uplink channels and / or reference signals.

[0163] In some embodiments, the network device 102 configures the unified TCI state type as an independent TCI state, and the first information includes that the unified TCI state type is an independent TCI state. Then the first information may include that the applicable scope of the TCI state is a downlink TCI state, that is, it is only applicable to the transmission of downlink channels and / or reference signals; or then the first information may include that the applicable scope of the TCI state is an uplink TCI state, that is, it is only applicable to the transmission of uplink channels and / or reference signals.

[0164] In some embodiments, the network device 102 configures the unified TCI state type as an independent TCI state. The first information may not include information indicating the unified TCI state type. In this case, the first information may include information indicating that the applicable scope of the TCI state is a downlink TCI state, i.e., applicable only to transmission of downlink channels and / or reference signals; or in this case, the first information may include information indicating that the applicable scope of the TCI state is an uplink TCI state, i.e., applicable only to transmission of uplink channels and / or reference signals. This is because the network device 102 configures the unified TCI state type as an independent TCI state and the terminal does not report a different unified TCI state type.

[0165] In some embodiments, the network device 102 configures the unified TCI state type as an independent TCI state, and the first information may include that the unified TCI state type is a joint TCI state. Then, the first information may not include the applicable scope of the TCI state, because the unified TCI state type reported by the terminal is a joint TCI state, which means that the applicable scope of the TCI state is a joint TCI state, that is, it is applicable to the transmission of both uplink and downlink channels and / or reference signals.

[0166] In some embodiments, for the uplink TCI state or the joint TCI state, the first reference signal resource included in the first information (that is, the reference signal resource corresponding to the first QCL parameter) corresponds to at least one of the following: power head room, power backoff amount, and the maximum number of supported sounding reference signal (SRS) antenna ports.

[0167] It can be understood that the first information includes the above content, and the reason for the QCL parameter update can be known. For example, based on the change of the maximum permitted radiation (MPE) of the current communication scenario, it is necessary to determine the power margin or power back-off value of the reference signal resource corresponding to the first QCL parameter and perform the QCL parameter update. Therefore, when the power margin or power back-off value of the reference signal resource corresponding to the first QCL parameter and the power margin or power back-off value of the reference signal resource corresponding to the current QCL parameter are known, the reason for the QCL parameter update can be reversely inferred.

[0168] Optionally, the first information may also include power management-maximum power reduction (P-MPR).

[0169] It is understandable that in order to meet the MPE, the uplink transmit power of the terminal needs to be reduced, that is, power backoff. The larger the power backoff value, the smaller the transmit power corresponding to the reference signal resource. When the power backoff value of the reference signal resource corresponding to the current QCL parameter is greater than the specified threshold, QCL parameter adjustment is required, such as QCL parameter update. Therefore, the power backoff value of the reference signal resource corresponding to the first QCL parameter and the power backoff value of the reference signal resource corresponding to the current QCL parameter can be compared respectively to confirm the reason for the QCL parameter update, whether the power backoff value corresponding to the current QCL parameter is too large.

[0170] Continuing with the above embodiment, it can be understood that when the P-MPR value corresponding to the reference signal resource corresponding to the first QCL parameter is greater than a specified threshold, the first information needs to include a power backoff value corresponding to the reference signal resource.

[0171] It can be understood that the maximum number of supported SRS antenna ports is equivalent to the identifier of the terminal antenna panel corresponding to the reference signal resource. For example, the terminal antenna panel identifier corresponding to the first QCL parameter is, for example, an antenna panel with a port number of 2), and the terminal panel identifier corresponding to the current QCL parameter is, for example, a panel with a port number of 1. By comparing and determining that the panel identifier corresponding to the first QCL parameter is different from the panel identifier corresponding to the current QCL parameter, it can be inferred that the update of the first QCL parameter may be the reason for panel switching or panel activation or deactivation.

[0172] In some embodiments, whether the first information includes the applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter can be divided into the following two cases:

[0173] -A) The first information does not include the applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter.

[0174] -B) The first information includes an applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter.

[0175] Optionally, for -A), when TCI state updates with different applicable scopes correspond to different events (such as update trigger events), the first information does not include the applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter.

[0176] For example, the event identifier for the joint TCI state update is #1, and the event identifier for the downlink TCI state update is #2. The applicable scope of the TCI state to be updated can be determined based on the event identifier. Therefore, in this case, the first information may not include the applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter. It is understood that in this case, the applicable scope of the corresponding TCI state may also be included.

[0177] Optionally, for -B), in cases other than the case corresponding to -A), the first information includes an applicable scope of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter.

[0178] Exemplarily, when there are multiple TCI state updates with different scopes of application corresponding to the same event (such as an update trigger event), the first information includes the scope of application of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter. For example, the identifier of the event corresponding to the joint TCI state update is #1, the identifier of the event corresponding to the downlink TCI state update is #2, and the identifier of the event corresponding to the uplink TCI state is #2. In this case, it is impossible to distinguish whether the scope of application is the downlink TCI state or the uplink TCI state based on the event identifier alone. Therefore, the first information is required to include indication information of the scope of application of the TCI state corresponding to the reference signal resource corresponding to the first QCL parameter.

[0179] In some embodiments, one reference signal resource may correspond to at least one event identifier.

[0180] For example, when the TCI state corresponding to the reference signal resource identified as 1# is applicable to the joint TCI state, the reference signal resource identified as 1# can correspond to the event identifier corresponding to triggering uplink TCI state reporting (which can be understood as event 1#), or can correspond to the event identifier corresponding to triggering downlink TCI state reporting (which can be understood as event 2#). It is understood that to specifically determine which event is triggered, it is necessary to measure the corresponding parameters to determine which event triggering condition is met.

[0181] In some embodiments, the parameter corresponding to the first reference signal resource includes at least one of the following:

[0182] The layer 1 reference signal receiving power (L1-RSRP) corresponding to the first reference signal resource (that is, the reference signal resource of the first QCL parameter), the layer 1 signal to interference plus noise ratio (L1-SINR) corresponding to the first reference signal resource (that is, the reference signal resource of the first QCL parameter), the power backoff value corresponding to the reference signal resource of the first QCL parameter, or the power headroom corresponding to the reference signal resource of the first QCL parameter.

[0183] Continuing with the above embodiment, corresponding parameter measurements are performed on the reference signal resource identified as 1#, including: measuring one or more of its L1-RSRP, L1-SINR, power backoff value, and power headroom, so as to determine which event triggering condition is met.

[0184] In some embodiments, the first information may be carried in the second information (eg, information used for random access).

[0185] In some embodiments, the terminal 101 sends the first information by sending information for random access to the network device 102 .

[0186] In some embodiments, the second message includes, for example: A-type message (Message A) or 1-type message (Message 1).

[0187] Optionally, Message A includes Message 1 and the corresponding PUSCH.

[0188] Exemplarily, network device 102 configures a correspondence between a CSI-RS, a random access channel occasion (RO), and a preamble, and / or a correspondence between an SSB, a RO, and a preamble. After determining the CSI-RS or SSB corresponding to the first QCL parameter, terminal 101 transmits a random access preamble to network device 102 via Message A or Message 1 based on the corresponding RO.

[0189] In some embodiments, when the second information is information used for random access, the corresponding random access process includes at least one of the following:

[0190] Contention-free random access or contention-based random access.

[0191] It is understood that the RO may include time domain resources and frequency domain resources. When the RO and preamble are dedicated, the random access corresponding to the second information is based on contention-free random access. When the RO and preamble are shared with other terminals, the random access corresponding to the second information is based on contention-based random access.

[0192] In some embodiments, the first information is carried in a scheduling request (SR).

[0193] In some examples, SR resources (time-frequency resources and sequences) and CSI-RS have a first mapping relationship (which may be a one-to-one relationship or a one-to-many relationship).

[0194] In some embodiments, SR (resource time-frequency resource and sequence) and SSB have a first mapping relationship (which may be a one-to-one relationship or a one-to-many relationship).

[0195] Based on this, the network device 102 can determine the corresponding SSB or CSI-RS based on the SR, and then determine the corresponding first QCL parameter based on the SSB or CSI-RS.

[0196] In some embodiments, the first information is carried in the SR and the uplink shared channel media access control element (Physical Downlink Shared Channel Media Access Control, PUSCH MAC CE).

[0197] Optionally, the PUSCH MAC CE may include the first information, and the SR is used to initiate a scheduling request to request the network device 102 to configure PUSCH resources.

[0198] In some embodiments, the first information is carried on a PUSCH with a configured grant, a PUSCH with a dynamic grant, or a PUCCH.

[0199] Optionally, the terminal 101 implements the first information bearing based on the PUSCH resources with configuration authorization obtained from the network device 102, the dynamically scheduled (dynamically granted) PUSCH, or the PUCCH resources.

[0200] In some embodiments, the first condition comprises an event of a network device configuration.

[0201] Based on this, satisfying the first condition can be understood as when the event is triggered.

[0202] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0203] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0204] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0205] In some embodiments, "radio", "wireless", "radio access network",

[0206] The terms "access network (RAN)", "access network (AN)", "RAN-based" and the like are used interchangeably.

[0207] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0208] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0209] In step S2102 , the network device 102 determines a first QCL parameter based on the first information.

[0210] In some embodiments, when the first information is carried in the second information and sent to the network device 102,

[0211] The network device 102 determines the corresponding SSB and / or CSI-RS based on the received preamble code and / or the corresponding RO, and further determines the first QCL parameter of the corresponding SSB and / or CSI-RS.

[0212] In some embodiments, when the first information is carried in the SR, after the network device 102 obtains the SR, it determines the corresponding SSB and / or CSI-RS based on the first mapping relationship or the second mapping relationship, and then determines the first QCL parameter of the corresponding SSB and / or CSI-RS.

[0213] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and step S2101 + step S2102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0214] In some embodiments, step S2101 and step S2102 may be executed in an interchanged order or simultaneously.

[0215] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0216] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0217] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a communication method, which includes:

[0218] Step S3101, sending the first information.

[0219] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0220] In some embodiments, when a first condition is met, first information is sent, and the first information is used to determine a first QCL parameter.

[0221] In some embodiments, the first information includes at least one of the following: an identifier of a first reference signal resource, the first reference signal resource is a reference signal resource corresponding to the first QCL parameter, a unified transmission configuration indication TCI state type, an applicable scope of the TCI state corresponding to the first reference signal resource, an event identifier, the event is an event that triggers the terminal to send the first information, and a parameter corresponding to the first reference signal resource.

[0222] In some embodiments, the identifier of the first reference signal resource includes: an SSB identifier and / or a CSI-RS identifier.

[0223] In some embodiments, when the SSB is identified as a non-serving cell, the first information includes an index of the non-serving cell in a physical cell identifier (PCI) list.

[0224] In some embodiments, types of unified TCI states include: joint TCI states, and / or independent TCI states.

[0225] In some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0226] In some embodiments, the applicable scope of the TCI state includes the uplink TCI state or the joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin, power backoff amount, and the maximum number of supported sounding reference signal SRS antenna ports.

[0227] In some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0228] In some embodiments, the parameter corresponding to the first reference signal resource includes at least one of the following: an L1-RSRP corresponding to the first reference signal resource, and an L1-SINR corresponding to the first reference signal resource.

[0229] In some embodiments, the first information is carried in the second information, and the second information is information used for random access.

[0230] In some embodiments, the random access process corresponding to the second information includes at least one of the following: contention-free based random access and contention-based random access.

[0231] In some embodiments, the first information is carried in a scheduling request.

[0232] In some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0233] In some embodiments, the first information is carried in a scheduling request and a PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0234] In some embodiments, the first information is carried on a PUSCH with configuration grant, a PUSCH with dynamic grant, or a PUCCH.

[0235] In some embodiments, the first condition comprises an event of a network device configuration.

[0236] FIG4A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0237] Step S4101, obtain first information.

[0238] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0239] In some embodiments, the network device 102 receives the first information sent by the terminal 101, but is not limited thereto and may also receive the first information sent by other entities.

[0240] In some embodiments, the network device 102 obtains first information specified by the protocol.

[0241] In some embodiments, the network device 102 obtains the first information from an upper layer(s).

[0242] In some embodiments, the network device 102 performs processing to obtain the first information.

[0243] In some embodiments, step S3101 is omitted, and the network device 102 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0244] In some embodiments, the terminal 101 sends the first information to the network device 102, but is not limited thereto and the first information may also be sent to other entities.

[0245] Step S4102: Determine a first QCL parameter based on the first information.

[0246] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0247] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 and S4102. For example, step S4101 may be implemented as an independent embodiment, step S4102 may be implemented as an independent embodiment, and step S4101 + step S4102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0248] In some embodiments, step S4101 and step S4102 may be executed in an interchanged order or simultaneously.

[0249] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0250] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0251] FIG4B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0252] Step S4201, obtain first information.

[0253] The optional implementation of step S4201 can be found in step S2101 of Figure 2, step S3101 in Figure 3, and the optional implementation of step S4101 in Figure 4A, as well as other related parts in the embodiments involved in Figures 2, 3 and 4A, which will not be repeated here.

[0254] In some embodiments, when a first condition is met, first information is acquired, and the first information is used to determine a first QCL parameter.

[0255] In some embodiments, the first information includes at least one of the following: an identifier of a first reference signal resource, the first reference signal resource is a reference signal resource corresponding to a first QCL parameter, a unified transmission configuration indication TCI state type, an applicable scope of the TCI state corresponding to the first reference signal resource, an event identifier, the event is an event that triggers the terminal to send the first information, and a parameter corresponding to the first reference signal resource.

[0256] In some embodiments, the identifier of the first reference signal resource includes: an SSB identifier and / or a CSI-RS identifier.

[0257] In some embodiments, when the SSB is identified as a non-serving cell, the first information includes an index of the non-serving cell in a physical cell identifier (PCI) list.

[0258] In some embodiments, types of unified TCI states include: joint TCI states, and / or independent TCI states.

[0259] In some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0260] In some embodiments, the applicable scope of the TCI state includes the uplink TCI state or the joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin, power backoff amount, and the maximum number of supported sounding reference signal SRS antenna ports.

[0261] In some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0262] In some embodiments, the parameter corresponding to the first reference signal resource includes at least one of the following: an L1-RSRP corresponding to the first reference signal resource, and an L1-SINR corresponding to the first reference signal resource.

[0263] In some embodiments, the first information is carried in the second information, and the second information is information used for random access.

[0264] In some embodiments, the random access process corresponding to the second information includes at least one of the following: contention-free based random access and contention-based random access.

[0265] In some embodiments, the first information is carried in a scheduling request.

[0266] In some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0267] In some embodiments, the first information is carried in a scheduling request and a PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0268] In some embodiments, the first information is carried on a PUSCH with configuration grant, a PUSCH with dynamic grant, or a PUCCH.

[0269] In some embodiments, the first condition comprises an event of a network device configuration.

[0270] Figure 5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to a communication method, which includes:

[0271] Step S5101: Terminal 101 sends first information to network device 102.

[0272] In some embodiments, when a first condition is met, the terminal 101 sends first information, where the first information is used to determine a first QCL parameter.

[0273] The optional implementation of step S5101 can be found in step S2101 of Figure 2, step S3101 of Figure 3, step S4101 of Figure 4A and step S4201 of Figure 4B, as well as other related parts in the embodiments involved in Figures 2, 3, 4A and 4B, which will not be repeated here.

[0274] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, access network device side, core network device side, first network element side, second network element side, etc., which will not be repeated here.

[0275] This disclosure also provides a communication method that proposes a method for initiating event-triggered beam reports from terminals. This method enables terminals and network devices to determine new beams based on the beam reports and begin using the new beams when certain conditions are met. This solution reduces the signaling overhead of beam indication and also reduces beam update latency.

[0276] In some embodiments, in response to a first condition being met, the terminal sends first information, where the first information is used to determine a new beam.

[0277] Optionally, the beam can also be referred to as any of the following: 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 transmission configuration indication state (joint TCI state), downlink transmission configuration indication state (Downlink TCI state, DL TCI state), uplink transmission configuration indication state (Uplink TCI state, DL TCI state), independent transmission configuration indication state (unified TCI state), common transmission configuration indication state (common TCI state) and spatial relation information, etc.

[0278] In some embodiments, the first information includes at least one of the following: at least one reference signal resource identifier (ID) for determining the new beam, a unified TCI state type, a TCI state corresponding to the reference signal resource, an event identifier corresponding to the triggering first information, a reported L1-RSRP corresponding to the specified reference signal resource, and a reported L1-SINR corresponding to the specified reference signal resource.

[0279] Optionally, the reference signal resource ID includes: SSB ID or CSI-RS ID.

[0280] Optionally, the SSB ID corresponds to indicating a serving cell or a non-serving cell. In the case of a non-serving cell, it indicates the index of the non-serving cell in the PCI list of the five-cell identifier.

[0281] Optionally, a unified TCI state type is adopted, including a joint TCI state or an independent TCI state.

[0282] Optionally, the TCI state corresponding to the reference signal resource includes at least one of the following: a joint TCI state, a downlink TCI state, or an uplink TCI state.

[0283] Optionally, the TCI status does not include the combined TCI status in the following cases:

[0284] If the terminal has indicated that the unified TCI state type is the joint TCI state, or the network device has configured the unified TCI state type as the joint TCI state and the terminal cannot change it, the joint TCI state may not be required.

[0285] Optionally, the TCI status includes a combined TCI status in the following cases:

[0286] If there is no unified TCI status type, and the unified TCI status type configured by the network device can be changed by the terminal, then this can be included in the beam report.

[0287] Optionally, in the following cases, the TCI state includes an uplink TCI state or a downlink TCI state:

[0288] This is only required when the network device is configured with the independent TCI state type as independent or the terminal indicates the unified TCI state as independent in b;

[0289] Or the first information does not include a unified TCI status type.

[0290] In some embodiments, the beam update reason (e.g., caused by MPE or caused by terminal handover) can be notified through the following dedicated (uplink TCI pile) reference signal resources:

[0291] The power margin corresponding to the reference signal resource, P-MPR (to meet MPE, whether the P-MPR corresponding to the reference signal resource is lower than P-MPR_00), MPE (if P is greater than P-MPR_00, MPE indicates the power fallback value corresponding to the reference signal resource), and the maximum number of supported SRS antenna ports corresponding to the reference signal resource.

[0292] Optionally, for the event identifier corresponding to the triggering first information, if the updates of the combined TCI state, downlink TCI state, and uplink TCI state correspond to different events, then indicating the event identifier eliminates the need to indicate whether the reference signal resources are used for the combined TCI state, downlink TCI state, or uplink TCI state. Otherwise, the event identifier and the indication of whether the reference signal resources are used for the combined TCI state, downlink TCI state, or uplink TCI state can coexist.

[0293] Optionally, a reference signal resource may correspond to at least one event identifier, that is, may correspond to one or more event identifiers. For example, if the reference signal resource e needs to be used for an uplink TCI state or a combined TCI state, a high L1-RSRP / L1-SINR and a low MPE are required.

[0294] In some embodiments, the first information is carried in Msg 1 or Msg A (Msg A includes Msg 1 and PUSCH) in a random process.

[0295] Optionally, the network device configures the correspondence between the CSI-RS or SSB and the random access resources including RO (RACH occasion, including time domain and frequency domain resources), preamble, etc. After determining the CSI-RS or SSB corresponding to the new beam, the terminal sends a random access preamble (contained in MSg 1 or Msg A) based on the random access resources corresponding to the CSI-RS or SSB. The network device determines the SSB based on the received preamble and the corresponding RO, and further determines the CSI-RS or SSB corresponding to the new beam, thereby determining the new beam.

[0296] Optionally, the random access may be contention-free random access, ie, the preamble and the RO are dedicated, or contention-based random access (ie, the preamble and the RO may collide with other UEs).

[0297] In some embodiments, the first information is carried in a scheduling request.

[0298] Optionally, the network device configures the correspondence between SR resources (time-frequency resources and sequences) and CSI-RS or SSB (one-to-many or one-to-one). After determining the CSI-RS or SSB corresponding to the new beam, the terminal sends SR based on the SR resources corresponding to the CSI-RS or SSB. The network device determines the CSI-RS or SSB based on the received SR, thereby determining the new beam.

[0299] In some embodiments, the first information is carried in the SR and the PUSCH MAC CE, wherein the PUSCH MAC CE includes the first information, and the SR is used to initiate a scheduling request to request the network side to configure PUSCH resources.

[0300] In some embodiments, the first information is carried on a CG PUSCH or a PUCCH. A CG PUSCH or a PUCCH resource configured by a receiving network device is received.

[0301] In some embodiments, the first condition comprises a triggering event of a network device configuration.

[0302] In the embodiments of the present disclosure, 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 of other embodiments.

[0303] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0304] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0305] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 implementing the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0306] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , terminal 6100 may include a transceiver module 6101. In some embodiments, the transceiver module 6101 is configured to transmit first information when a first condition is satisfied, where the first information is used to determine a first QCL parameter. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g., step S2101, but not limited thereto) such as transmitting and / or receiving performed by terminal 101 in any of the above methods, and will not be further described herein.

[0307] In some embodiments, the first information includes at least one of the following: an identifier of a first reference signal resource, the first reference signal resource is a reference signal resource corresponding to the first QCL parameter, a unified transmission configuration indication TCI state type, an applicable scope of the TCI state corresponding to the first reference signal resource, an event identifier, the event is an event that triggers the terminal to send the first information, and a parameter corresponding to the first reference signal resource.

[0308] In some embodiments, the identifier of the first reference signal resource includes: an SSB identifier and / or a CSI-RS identifier.

[0309] In some embodiments, when the SSB is identified as a non-serving cell, the first information includes an index of the non-serving cell in a physical cell identifier (PCI) list.

[0310] In some embodiments, types of unified TCI states include: joint TCI states, and / or independent TCI states.

[0311] In some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0312] In some embodiments, the applicable scope of the TCI state includes the uplink TCI state or the joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin, power backoff amount, and the maximum number of supported sounding reference signal SRS antenna ports.

[0313] In some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0314] In some embodiments, the parameter corresponding to the first reference signal resource includes at least one of the following: an L1-RSRP corresponding to the first reference signal resource, and an L1-SINR corresponding to the first reference signal resource.

[0315] In some embodiments, the first information is carried in the second information, and the second information is information used for random access.

[0316] In some embodiments, the random access process corresponding to the second information includes at least one of the following: contention-free based random access and contention-based random access.

[0317] In some embodiments, the first information is carried in a scheduling request.

[0318] In some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0319] In some embodiments, the first information is carried in a scheduling request and a PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0320] In some embodiments, the first information is carried on a PUSCH with configuration grant, a PUSCH with dynamic grant, or a PUCCH.

[0321] In some embodiments, the first condition comprises an event of a network device configuration.

[0322] Figure 6B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in Figure 6B, network device 6200 may include a transceiver module 6201. In some embodiments, the transceiver module 6201 is configured to obtain first information when a first condition is met, where the first information is used to determine a first QCL parameter. Optionally, the transceiver module is configured to perform at least one of the communication steps (such as sending and / or receiving) performed by network device 102 in any of the above methods (e.g., step S2101, but not limited thereto), and will not be further described herein.

[0323] In some embodiments, the network device 6200 may further include a processing module for determining a first QCL parameter based on the first information.

[0324] In some embodiments, the first information includes at least one of the following: an identifier of a first reference signal resource, the first reference signal resource is a reference signal resource corresponding to the first QCL parameter, a unified transmission configuration indication TCI state type, an applicable scope of the TCI state corresponding to the first reference signal resource, an event identifier, the event is an event that triggers the terminal to send the first information, and a parameter corresponding to the first reference signal resource.

[0325] In some embodiments, the identifier of the first reference signal resource includes: an SSB identifier and / or a CSI-RS identifier.

[0326] In some embodiments, when the SSB is identified as a non-serving cell, the first information includes an index of the non-serving cell in a physical cell identifier (PCI) list.

[0327] In some embodiments, types of unified TCI states include: joint TCI states, and / or independent TCI states.

[0328] In some embodiments, the TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0329] In some embodiments, the applicable scope of the TCI state includes the uplink TCI state or the joint TCI state, and the first information includes at least one of the following items corresponding to the first reference signal resource: power margin, power backoff amount, and the maximum number of supported sounding reference signal SRS antenna ports.

[0330] In some embodiments, each first reference signal resource corresponds to at least one event identifier.

[0331] In some embodiments, the parameter corresponding to the first reference signal resource includes at least one of the following: an L1-RSRP corresponding to the first reference signal resource, and an L1-SINR corresponding to the first reference signal resource.

[0332] In some embodiments, the first information is carried in the second information, and the second information is information used for random access.

[0333] In some embodiments, the random access process corresponding to the second information includes at least one of the following: contention-free based random access and contention-based random access.

[0334] In some embodiments, the first information is carried in a scheduling request.

[0335] In some embodiments, the scheduling request has a first mapping relationship with the CSI-RS, or the scheduling request has a second mapping relationship with the SSB.

[0336] In some embodiments, the first information is carried in a scheduling request and a PUSCH MAC CE, wherein the scheduling request is a scheduling request for beam reporting.

[0337] In some embodiments, the first information is carried on a PUSCH with configuration grant, a PUSCH with dynamic grant, or a PUCCH.

[0338] In some embodiments, the first condition comprises an event of a network device configuration.

[0339] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0340] 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, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 7100 is used to perform any of the above methods. Optionally, one or more processors 7101 are used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0341] 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 such as sending and / or receiving in the above method (for example, step S2102, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, step S2101, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0342] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of the memories 7103 may be located outside the communication device 7100. In alternative 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 may be configured to receive data from the memories 7103 or other devices, or to send data to the memories 7103 or other devices. For example, the interface circuits 7104 may read data stored in the memories 7103 and send the data to the processor 7101.

[0343] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present 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 an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0344] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0345] The chip 7200 includes one or more processors 7201. The chip 7200 is configured to execute any of the above methods.

[0346] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Alternatively, terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Alternatively, all or part of memory 7203 may be located external to chip 7200. Optionally, interface circuit 7202 is connected to memory 7203 and may be used to receive data from memory 7203 or other devices, or may be used to send data to memory 7203 or other devices. For example, interface circuit 7202 may read data stored in memory 7203 and send the data to processor 7201.

[0347] In some embodiments, the interface circuit 7202 performs at least one of the communication steps (e.g., step S2102, but not limited thereto) in the above method, such as sending and / or receiving. For example, the interface circuit 7202 performs the communication steps (e.g., step S2102, but not limited thereto) in the above method, which means that the interface circuit 7202 performs data exchange 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 the other steps (e.g., step S2101, but not limited thereto).

[0348] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0349] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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 is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0350] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0351] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that, The method includes: When a first condition is met, a terminal sends first information to a network device, where the first information is used to determine first QCL parameters.

2. The method according to claim 1, wherein The first information includes at least one of the following: An identifier of a first reference signal resource, where the first reference signal resource is a reference signal resource corresponding to the first QCL parameter; A unified transmission configuration indication (TCI) state type; A scope of applicability of a TCI state corresponding to the first reference signal resource; An event identifier, where the event is an event that triggers the terminal to send the first information; Parameters corresponding to the first reference signal resource.

3. The method according to claim 2, characterized in that, The identifier of the first reference signal resource includes: A synchronization signal block (SSB) identifier, and / or A channel state information reference signal (CSI-RS) identifier.

4. The method according to claim 3, wherein When the SSB identifier is for a non-serving cell, the first information includes an index of the non-serving cell in a physical cell identifier (PCI) list.

5. The method according to claim 2, characterized in that The type of the unified TCI state includes: A joint TCI state, and / or an independent TCI state.

6. The method according to claim 2, wherein The TCI state is represented based on a reported first reference signal resource, and the scope of applicability of the TCI state includes at least one of the following: A joint TCI state; A downlink TCI state; An uplink TCI state.

7. The method according to claim 6, wherein When the scope of applicability of the TCI state includes an uplink TCI state or a joint TCI state, the first information includes at least one of the following corresponding to the first reference signal resource: A power headroom; A power back-off; A maximum number of supported sounding reference signal (SRS) antenna ports.

8. The method according to claim 2, characterized in that Each first reference signal resource corresponds to at least one event identifier.

9. The method according to claim 2, wherein The parameters corresponding to the first reference signal resource include at least one of the following: A layer 1 reference signal received power (L1-RSRP) corresponding to the first reference signal resource; A layer 1 signal-to-interference-plus-noise ratio (L1-SINR) corresponding to the first reference signal resource.

10. The method according to claim 1, wherein The first information is carried in second information, where the second information is information for random access.

11. The method according to claim 10, characterized in that, The random access procedure corresponding to the second information includes at least one of the following: Contention-free random access; Contention-based random access.

12. The method according to claim 1, characterized in that, The first information is carried in a scheduling request.

13. The method according to claim 12, characterized in that, The scheduling request has a first mapping relationship with a CSI-RS, or the scheduling request has a second mapping relationship with an SSB.

14. The method according to claim 1, characterized in that, The first information is carried in a scheduling request and a physical uplink shared channel medium access control element (PUSCH MAC CE), where the scheduling request is a scheduling request for beam reporting.

15. The method according to claim 1, characterized in that, The first information is carried in a configured grant physical uplink shared channel (PUSCH), or a physical uplink control channel (PUCCH).

16. The method according to claim 1, characterized in that, The first condition includes an event configured by the network device.

17. A communication method, characterized in that, The method includes: When a first condition is met, the network device receives the first information sent by the terminal, where the first information is used to determine first QCL parameters.

18. The method according to claim 17, wherein The first information includes at least one of the following: An identifier of a first reference signal resource, where the first reference signal resource is a reference signal resource corresponding to the first QCL parameter; A unified transmission configuration indication (TCI) state type; A scope of applicability of a TCI state corresponding to the first reference signal resource; An event identifier, where the event is an event that triggers the terminal to send first information; Parameters corresponding to the first reference signal resource.

19. The method according to claim 18, characterized in that, The identifier of the first reference signal resource, including: Synchronization signal block SSB identifier, and / or Channel state information reference signal CSI-RS identifier.

20. The method according to claim 19, wherein When the SSB identifier is a non-serving cell, the first information includes the index of the non-serving cell in the physical cell identifier PCI list.

21. The method according to claim 18, wherein The type of the unified TCI state, including: Combined TCI state, and / or independent TCI state.

22. The method according to claim 18, wherein The TCI state is represented based on the reported first reference signal resource, and the applicable scope of the TCI state includes at least one of the following: Combined TCI state; Downlink TCI state; Uplink TCI state.

23. The method according to claim 22, characterized in that, When the applicable scope of the TCI state includes the uplink TCI state or the combined TCI state, the first information includes at least one of the following corresponding to the first reference signal resource: Power headroom; Power back-off; The maximum number of supported sounding reference signal SRS antenna ports.

24. The method according to claim 18, wherein Each first reference signal resource corresponds to at least one event identifier.

25. The method according to claim 18, wherein The parameters corresponding to the first reference signal resource include at least one of the following: The layer 1 reference signal received power L1-RSRP corresponding to the first reference signal resource; The layer 1 signal-to-interference-plus-noise ratio L1-SINR corresponding to the first reference signal resource.

26. The method according to claim 17, wherein The first information is carried in second information, and the second information is information for random access.

27. The method according to claim 26, wherein The random access process corresponding to the second information includes at least one of the following: Contention-free random access; Contention-based random access.

28. The method according to claim 17, wherein The first information is carried in a scheduling request.

29. The method according to claim 28, wherein The scheduling request has a first mapping relationship with CSI-RS, or the scheduling request has a second mapping relationship with SSB.

30. The method according to claim 17, wherein The first information is carried in a scheduling request and a physical uplink shared channel media access control unit PUSCH MAC CE, where the scheduling request is a scheduling request for beam reporting.

31. The method according to claim 17, wherein The first information is carried in a configured grant physical uplink shared channel PUSCH, or a physical uplink control channel PUCCH.

32. The method according to claim 17, wherein The first condition includes an event configured by a network device.

33. A communication method, characterized in that, The method includes: When a first condition is satisfied, a terminal sends first information, and the first information is used to determine first QCL parameters; A network device receives the first information sent by the terminal.

34. A terminal, characterized in that, Including: A transceiver module, configured to send first information when a first condition is satisfied, where the first information is used to determine first QCL parameters.

35. A network device, characterized in that, Including: A transceiver module, configured to obtain first information when a first condition is satisfied, where the first information is used to determine first QCL parameters.

36. A terminal, characterized in that, Including: One or more processors; Wherein, the processor is configured to execute the communication method according to any one of claims 1 to 16.

37. A network device, characterized in that, Including: One or more processors; Wherein, the processor is configured to execute the communication method according to any one of claims 17 to 32.

38. A communication system, characterized in that, It includes a terminal and a network device. Among them, the terminal is configured to implement the communication method described in any one of claims 1 to 16, and the network device is configured to implement the communication method described in any one of claims 17 to 32.

39. A storage medium storing instructions, characterized in that, When the instruction runs on the communication device, it causes the communication device to execute the communication method described in any one of claims 1 to 16 or 17 to 32.

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