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: in response to satisfying event corresponding conditions, a terminal sends first information to a network device, 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: in response to satisfying a condition corresponding to an event, a terminal sends first information to a network device, the first information being 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: a network device receives first information sent by a terminal when a condition corresponding to an event is met, 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: in response to satisfying an event corresponding condition, the terminal sends first information to a network device, where the first information is used to determine a first QCL parameter; and the network device receives the first information.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a transceiver module, configured to send first information to a network device in response to a condition corresponding to an event being 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 receive first information sent by a terminal when a condition corresponding to an event 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 of 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 a communication method, which includes: in response to meeting a condition corresponding to an event, a terminal sends first information to a 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 event is used to trigger at least one of the following: reporting a reference signal resource identifier for transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a neighboring cell, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

[0031] In the above embodiment, based on this, the specific triggering event for sending the first information can be clarified, and based on this, the relationship between the triggering time and the corresponding triggering condition is established, so that the triggering condition for sending the first information is clearer.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the condition includes a first condition, the first condition includes a first parameter satisfying a condition, and the first parameter includes at least one of the following: the reference signal received power L1-RSRP of layer 1; the signal to interference plus noise ratio L1-SINR of layer 1.

[0033] In the above embodiment, the trigger constraint for the first condition is clarified, thereby making the trigger condition for sending the first information clearer.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the condition includes a second condition, and the second condition includes that the uplink power parameter meets the condition; the uplink power parameter includes at least one of the following: power headroom report PHR; power backoff value.

[0035] In the above embodiment, the triggering constraint for the second condition is clarified, thereby making the triggering condition for sending the first information clearer.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter including at least one of the following: reference signal received power L1-RSRP of layer 1; signal to interference plus noise ratio L1-SINR of layer 1; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: power headroom report PHR; power backoff value.

[0037] In the above embodiment, the trigger constraint for the third condition is clarified, thereby making the trigger condition for sending the first information clearer.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; compared with the second reference signal resource set, the first reference signal resource set has at least one different reference signal resource, the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes the reference signal resources corresponding to the last reported best K QCL parameters; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters.

[0039] In the above embodiment, the specific constraint content of the first condition is clarified, thereby making the triggering condition for sending the first information clearer.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the second condition includes at least one of the following: the value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by the maximum allowed radiation amount MPE is greater than a fourth threshold, and the MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0041] In the above embodiment, the specific constraint content of the second condition is clarified, thereby making the triggering condition for sending the first information clearer.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource reported last time; the reference signal resource corresponding to the TCI state indicated by the network device; all reference signal resources in the last report; the reference signal resource with the worst quality in the last report; the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report; reference signal resources other than the reference signal resources included in the last report; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0045] In the above embodiment, the association relationship between the event and the corresponding trigger condition is clarified, thereby making the trigger condition for sending the first information clearer.

[0046] In a second aspect, an embodiment of the present disclosure proposes a communication method, which includes: a network device receives first information sent by a terminal when a condition corresponding to an event is met, and the first information is used to determine a first QCL parameter.

[0047] In the above embodiment, the network device obtains information used to determine the first QCL parameter, and thus can achieve determination of the first QCL parameter.

[0048] In combination with some embodiments of the second aspect, in some embodiments, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a neighboring cell TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

[0049] In combination with some embodiments of the second aspect, in some embodiments, the condition includes a first condition, the first condition includes a first parameter satisfying a condition, and the first parameter includes at least one of the following: the reference signal received power L1-RSRP of layer 1; the signal to interference plus noise ratio L1-SINR of layer 1.

[0050] In combination with some embodiments of the second aspect, in some embodiments, the condition includes a second condition, and the second condition includes that the uplink power parameter meets the condition; the uplink power parameter includes at least one of the following: power headroom report PHR; power backoff value P-MPR.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter including at least one of the following: reference signal received power L1-RSRP of layer 1; signal to interference plus noise ratio L1-SINR of layer 1; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: power headroom report PHR; power backoff value.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; compared with the second reference signal resource set, there is at least one reference signal resource that is different in the first reference signal resource set, the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes the reference signal resources corresponding to the best K QCL parameters reported last time; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters.

[0053] In combination with some embodiments of the second aspect, in some embodiments, the second condition includes at least one of the following: the value of the power margin report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by the maximum allowed radiation amount MPE is greater than a fourth threshold, and the MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource last reported by the terminal; the reference signal resource corresponding to the TCI state indicated by the network device;

[0055] All reference signal resources reported by the terminal last time; the reference signal resource with the worst quality reported by the terminal last time; the TCI state indicated by the network device, including at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0056] In combination with some embodiments of the second aspect, in some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report of the terminal; reference signal resources other than the reference signal resources included in the last report of the terminal; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0058] In a third aspect, an embodiment of the present disclosure proposes a communication method, which includes: in response to meeting a condition corresponding to an event, the terminal sends first information to a network device, where the first information is used to determine a first QCL parameter; and the network device receives the first information.

[0059] In a fourth aspect, an embodiment of the present disclosure proposes a terminal, comprising: a transceiver module, configured to send first information to a network device in response to a condition corresponding to an event being met, wherein the first information is used to determine a first QCL parameter.

[0060] In a fifth aspect, an embodiment of the present disclosure proposes a network device, including: a transceiver module, used to receive first information sent by a terminal when a condition corresponding to an event is met, and the first information is used to determine a first QCL parameter.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0072] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0073] 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.

[0074] 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.

[0075] 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 the use of prefixes should not constitute unnecessary restrictions. 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.

[0076] 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.

[0077] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0087] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0088] 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.

[0089] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0090] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0091] 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.

[0092] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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).

[0097] 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.

[0098] 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.

[0099] 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).

[0100] 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.

[0101] In the discussion of R15 or R16, beam indication signaling includes Media Access Control (MAC CE) and downlink control information (DCI).

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] However, for the beam report initiated by the terminal, the specific conditions that must be met and the triggering events corresponding to the conditions are not clear.

[0108] 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.

[0109] 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:

[0110] Step S2101 , the terminal 101 sends first information to the network device 102 .

[0111] In some embodiments, network device 102 receives first information.

[0112] In some embodiments, the first information is used to determine a first QCL parameter.

[0113] In some embodiments, the first information is used by the network device 102 to determine a first QCL parameter.

[0114] In some embodiments, the first information is used by the terminal 101 to determine a first QCL parameter.

[0115] 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.

[0116] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] In some embodiments, the first QCL parameter may be understood as a new beam.

[0121] 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.

[0122] In some embodiments, the QCL parameters include QCL type D: spatial reception parameters.

[0123] It will be appreciated that the beam can be exchanged with the QCL parameters.

[0124] In some embodiments, the QCL parameters may be referred to as QCL assumptions.

[0125] It will be appreciated that the beam can be replaced with the QCL assumption.

[0126] 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.

[0127] It can be understood that the beam can also be replaced with any one of type A, type B, and type C.

[0128] 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.

[0129] It should be noted that the embodiments of the present disclosure exemplarily describe the beam through QCL parameters.

[0130] In some embodiments, "QCL parameters", "reference signals corresponding to QCL parameters", and "reference signal resources" may be interchangeable.

[0131] 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.

[0132] In some embodiments, when a condition corresponding to an event is met, the terminal 101 sends first information to the network device 102 .

[0133] Based on this, it is necessary to understand that, when the specific content of the event and the specific content of the conditions corresponding to the event are known, it is determined under what circumstances (for example, when the specific triggering event meets the corresponding triggering conditions) the terminal 101 can send the first information to the network device 102.

[0134] In some embodiments, the event includes: an event corresponding to triggering the reporting of the TCI status.

[0135] Optionally, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for a transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for a downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for an uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a neighboring cell, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier. It can be understood that the TCI state including the first QCL parameter also includes: the downlink TCI state including the first QCL parameter, or the uplink TCI state including the first QCL parameter, or the joint TCI state including the first QCL parameter, or the neighboring cell TCI state including the first QCL parameter.

[0136] In some embodiments, if the event corresponds to an event for reporting a downlink TCI state, then the reference signal resource identifier is correspondingly configured as a reference signal resource identifier for downlink TCI state indication.

[0137] In some embodiments, if the event corresponds to an event for reporting an uplink TCI state, then the reference signal resource identifier is correspondingly configured as a reference signal resource identifier for uplink TCI state indication.

[0138] In some embodiments, if the event corresponds to an event reported for a joint TCI state, then the reference signal resource identifier is configured as a reference signal resource identifier for a joint TCI state indication.

[0139] In some embodiments, if the event corresponds to an event for reporting a TCI status of a neighboring cell, then the reference signal resource identifier is configured as a reference signal resource identifier for indicating the TCI status of the neighboring cell.

[0140] In some embodiments, each event may correspond to a trigger condition.

[0141] Optionally, the event corresponding conditions include at least one of the following: the first condition corresponding to the event for triggering the report corresponding to the TCI status, the third condition corresponding to the event for triggering the report corresponding to the TCI status, the first condition corresponding to the event for triggering the report corresponding to the downlink TCI status, the second condition corresponding to the event for triggering the report corresponding to the uplink TCI status, the third condition corresponding to the event for triggering the report corresponding to the uplink TCI status, and the third condition corresponding to the event for triggering the report corresponding to the TCI status of the neighboring cell.

[0142] From this, we can know that the conditions for event triggering include the following:

[0143] -A) First condition;

[0144] -B) Second condition;

[0145] -C) The third condition.

[0146] It is understandable that each event has a corresponding relationship with a trigger condition, and the corresponding relationship can be used to determine whether the event meets its corresponding condition, and then determine whether the terminal 101 is to send the first information to the network device 102.

[0147] In some embodiments, for -A) the first condition, whether the first condition is satisfied can be determined by whether the first parameter satisfies the condition corresponding to the first parameter.

[0148] For example, when the first parameter satisfies the condition corresponding to the first parameter, the first condition may be deemed to be satisfied (or called triggered). When the first parameter does not satisfy the condition corresponding to the first parameter, the first condition may be deemed to be unsatisfied (or called not triggered).

[0149] Optionally, the first parameter includes at least one of the following: layer 1 reference signal received power (L1-RSRP) and / or layer 1 signal-to-noise and interference ratio (L1-SINR).

[0150] In some embodiments, if at least one of the following exists, -A) the first condition is satisfied:

[0151] -A1) The value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold.

[0152] -A2) The value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold.

[0153] -A3) The first difference is greater than a first difference threshold, wherein the first difference is a difference between a value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and a value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter.

[0154] -A4) Compared with the second reference signal resource set, the first reference signal resource set has at least one different reference signal resource. The first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes reference signal resources corresponding to the last reported best K QCL parameters.

[0155] -A5) The first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device 102, and the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters.

[0156] Optionally, for -A1), for example, if the L1-RSRP corresponding to the reference signal resource corresponding to the current QCL parameter is less than the corresponding RSRP threshold, then -A) is satisfied; or if the L1-SINR corresponding to the reference signal resource corresponding to the current QCL parameter is less than the corresponding SINR threshold, then -A) is satisfied.

[0157] Optionally, for -A2), for example, if the L1-RSRP corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the corresponding RSRP threshold, then -A) is satisfied; or if the L1-SINR corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the corresponding SINR threshold, then -A) is satisfied.

[0158] Optionally, for -A3), for example, if the difference between the value of L1-RSRP corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of L1-RSRP corresponding to the reference signal resource corresponding to the current QCL parameter is greater than the corresponding difference threshold, then -A) is satisfied; or if the difference between the value of L1-SINR corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of L1-SINR corresponding to the reference signal resource corresponding to the current QCL parameter is greater than the corresponding difference threshold, then -A) is satisfied.

[0159] Optionally, for -A4), for example, if the reference signal resources corresponding to the current best K QCL parameters are different from the reference signal resources corresponding to the last reported best K QCL parameters, then -A) is satisfied.

[0160] Optionally, for -A5), for example, the reference signal resources corresponding to the current best K QCL parameters are not the QCL parameters included in the TCI state indicated by the network device 102, then -A) is satisfied.

[0161] It should be noted that the current QCL parameters include at least one of the following: the best QCL parameter in the last report; the QCL parameter corresponding to the TCI state most recently indicated by the network device 102; all QCL parameters in the last report; the worst QCL parameter in the last report, wherein the TCI state indicated by the network device 102 includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0162] It should also be noted that the candidate QCL parameters include at least one of the following: a non-optimal QCL parameter in the last report; a QCL parameter other than the QCL parameter included in the last report; and a QCL parameter other than the QCL parameter corresponding to the TCI state most recently indicated by the network device 102. The TCI state indicated by the network device 102 includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state.

[0163] It should also be noted that if a candidate QCL parameter meets a trigger condition, it will be determined as the first QCL parameter, and the terminal device will indicate the reference signal resource identifier corresponding to the first QCL parameter to the network device through the first information.

[0164] It should also be noted that the last report includes the most recently sent first information, where the first information can be understood as a beam report, including an explicit beam report and an implicit beam report, which is used to inform the network device of the reference signal resource identifier corresponding to the new beam.

[0165] In some embodiments, for -B) the second condition, whether the second condition is satisfied can be determined by whether the second parameter satisfies the condition corresponding to the second parameter.

[0166] For example, when the second parameter satisfies the condition corresponding to the second parameter, the second condition may be deemed to be satisfied (or called triggered). When the second parameter does not satisfy the condition corresponding to the second parameter, the second condition may be deemed not to be satisfied (or called not triggered).

[0167] Optionally, the second parameter may be an uplink power parameter.

[0168] Optionally, when the second parameter is an uplink power parameter, the second parameter includes: a power headroom report (Power Headroom Report, PHR) and / or a power backoff value.

[0169] In some embodiments, -B) the second condition is satisfied when at least one of the following exists:

[0170] -B1) The value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than the third threshold.

[0171] -B2) The power backoff value caused by the maximum permitted exposure (MPE) is greater than a fourth threshold, where the MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameters.

[0172] -B3) The PHR value corresponding to the candidate reference signal resource is greater than the fifth threshold.

[0173] -B4) The power backoff value corresponding to the candidate reference signal resource is less than a sixth threshold.

[0174] -B5) The second difference is less than a second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter.

[0175] -B6) A third difference is greater than a third difference threshold, wherein the third difference is a difference between a PHR corresponding to the candidate reference signal resource and a PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0176] It can be understood that the content represented by the reference signal resource corresponding to the current QCL parameter can be found in the relevant exemplary description in -A), and will not be repeated here.

[0177] It can be understood that for -B3) and -B4), that is, when the uplink power parameter of the QCL parameter corresponding to the current uplink TCI state is not good (does not meet the threshold requirement), -B) is satisfied.

[0178] It can be understood that, for -B3) and -B4), that is, when the uplink power parameters corresponding to the candidate reference signal resources are good (meet the threshold requirement), -B) is satisfied.

[0179] It can be understood that for -B5) and -B6), that is, when the uplink power parameter of the subsequent candidate reference signal is better than the uplink power parameter corresponding to the current TCI state (meets the threshold requirement), -B) is satisfied.

[0180] It can be understood that the power backoff value corresponding to the current QCL parameter is the power backoff value corresponding to the reference signal resource corresponding to the current QCL parameter.

[0181] It should be noted that candidate reference signal resources include at least one of the following: a non-optimal reference signal resource in the last report; a reference signal resource other than the reference signal resource included in the last report; and a reference signal resource other than the reference signal resource corresponding to the TCI state indicated by the network device 102. The TCI state indicated by the network device 102 includes at least one of a joint TCI state, a downlink TCI state, and an uplink TCI state. A candidate reference signal resource is a reference signal resource corresponding to a candidate QCL parameter.

[0182] It should also be noted that if a reference signal resource meets a certain trigger condition, it will be determined as the first reference signal resource corresponding to the first QCL parameter, and the terminal device will indicate the reference signal resource identifier corresponding to the first reference signal resource to the network device through the first information.

[0183] It should also be noted that the last report includes the most recently sent first information, where the first information can be understood as a beam report, including an explicit beam report and an implicit beam report, which is used to inform the network device of the reference signal resource identifier corresponding to the new beam.

[0184] In some embodiments, for -B) the second condition, whether the second condition is satisfied may also be determined by whether the first parameter satisfies the condition corresponding to the first parameter.

[0185] For example, when the first parameter satisfies the condition corresponding to the first parameter, the second condition may be deemed to be satisfied (or called triggered). When the first parameter does not satisfy the condition corresponding to the first parameter, the second condition may be deemed not to be satisfied (or called not triggered).

[0186] In some embodiments, -B) the second condition is satisfied when at least one of the following exists:

[0187] -B6) A value of a first parameter corresponding to a current uplink TCI state is less than a corresponding threshold, where the current uplink TCI state corresponds to a downlink reference signal resource.

[0188] -B7) The value of the first parameter of the source downlink reference signal resource of the QCL parameter corresponding to the reference signal resource in the current uplink TCI state is less than the corresponding threshold, wherein the current uplink TCI state corresponds to the uplink reference signal resource.

[0189] Optionally, for -B6), if the L1-RSRP and / or L1-SINR values ​​corresponding to the current uplink TCI state are less than their respective corresponding thresholds, then -B) is satisfied.

[0190] Optionally, for -B7), if the L1-RSRP and / or L1-SINR values ​​of the source downlink reference signal resources of the QCL parameters corresponding to the reference signal resources in the current uplink TCI state are less than their respective corresponding thresholds, then -B) is satisfied.

[0191] In some embodiments, for the third condition -C), whether -C) is satisfied can be determined by determining whether the first condition and / or the second condition are satisfied.

[0192] For example, if the first condition and / or the second condition are met, -C) is met. If neither the first condition nor the second condition is met, -C) is not met. In other words, events that trigger joint TCI status reporting can be defined jointly through the first and second conditions rather than through individual definitions.

[0193] It will be appreciated that the above descriptions of the conditions for satisfying both -A) the first condition and -B) the second condition have been described in detail. Therefore, as to whether -A) the first condition and / or -B) the second condition in -C) are satisfied, reference can be made to the relevant descriptions of the above embodiments, and no further details will be given here.

[0194] In some embodiments, for the third condition -C), the conditional definition of the joint TCI state can also be achieved through a separate definition.

[0195] Exemplarily, if the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is higher than the corresponding threshold, and the uplink power parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter meets the threshold requirement, then -C) is satisfied.

[0196] It can be understood that the reference signal resources corresponding to the candidate QCL parameters and the related descriptions of the candidate reference signal resources have been correspondingly explained in the above embodiments and will not be repeated here.

[0197] In some embodiments, the first information may be carried in the second information (eg, information used for random access).

[0198] In some embodiments, the terminal 101 sends the first information by sending information for random access to the network device 102 .

[0199] In some embodiments, the second message includes, for example: A-type message (Message A) or 1-type message (Message 1).

[0200] Optionally, Message A includes Message 1 and the corresponding PUSCH.

[0201] 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.

[0202] 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:

[0203] Contention-free random access or contention-based random access.

[0204] 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.

[0205] In some embodiments, the first information is carried in a scheduling request (SR).

[0206] 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).

[0207] 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).

[0208] 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.

[0209] 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).

[0210] 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.

[0211] In some embodiments, the first information is carried on a PUSCH with a configured grant, a PUSCH with a dynamic grant, or a PUCCH.

[0212] 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.

[0213] 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.

[0214] 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.

[0215] 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.

[0216] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0217] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0218] 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.

[0219] In step S2102 , the network device 102 determines a first QCL parameter based on the first information.

[0220] In some embodiments, when the first information is carried in the second information and sent to the network device 102,

[0221] 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.

[0222] 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.

[0223] 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.

[0224] In some embodiments, step S2101 and step S2102 may be executed in an interchanged order or simultaneously.

[0225] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0226] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0227] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0228] 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:

[0229] Step S3101, sending the first information.

[0230] 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.

[0231] In some embodiments, in response to a condition corresponding to an event being met, first information is sent to the network device 102 , where the first information is used to determine a first QCL parameter.

[0232] In some embodiments, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for a transmission configuration indication TCI state, wherein the first QCL parameter is a QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for a downlink TCI state, wherein the first QCL parameter is a QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for an uplink, wherein the first QCL parameter is a QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a joint TCI state, wherein the first QCL parameter is a QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a neighboring cell, wherein the first QCL parameter is a QCL parameter corresponding to the reference signal resource identifier. In some embodiments, the condition includes a first condition, wherein the first condition includes a first parameter satisfying a condition, wherein the first parameter includes: L1-RSRP, and / or L1-SINR.

[0233] In some embodiments, the condition includes a second condition, wherein the second condition includes that an uplink power parameter satisfies a condition; the uplink power parameter includes: PHR, and / or a power backoff value.

[0234] In some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter includes at least one of the following: L1-RSRP, L1-SINR; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: PHR; power backoff value.

[0235] In some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; the first reference signal resource set is different from the second reference signal resource set in that there is at least one reference signal resource, the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes reference signal resources corresponding to the last reported best K QCL parameters; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters.

[0236] In some embodiments, the second condition includes at least one of the following: the value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by MPE is greater than a fourth threshold, and MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0237] In some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource reported last time; the reference signal resource corresponding to the TCI state indicated by the network device; all reference signal resources reported last time; the reference signal resource with the worst quality in the last report; the TCI state indicated by the network device, including: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0238] In some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report; reference signal resources other than the reference signal resources included in the last report; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0239] In some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0240] 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:

[0241] Step S4101, obtain first information.

[0242] 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.

[0243] 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.

[0244] In some embodiments, the network device 102 obtains first information specified by the protocol.

[0245] In some embodiments, the network device 102 obtains the first information from an upper layer(s).

[0246] In some embodiments, the network device 102 performs processing to obtain the first information.

[0247] 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.

[0248] 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.

[0249] Step S4102: Determine a first QCL parameter based on the first information.

[0250] 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.

[0251] 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.

[0252] In some embodiments, step S4101 and step S4102 may be executed in an interchanged order or simultaneously.

[0253] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0254] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0255] 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:

[0256] Step S4201, obtain first information.

[0257] 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.

[0258] In some embodiments, the network device 102 receives first information sent by the terminal 101 when a condition corresponding to an event is met, and the first information is used to determine a first QCL parameter.

[0259] In some embodiments, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for a transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for a downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for an uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a neighboring cell, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

[0260] In some embodiments, the condition includes a first condition, the first condition includes a first parameter satisfying a condition, the first parameter includes: L1-RSRP and / or L1-SINR.

[0261] In some embodiments, the condition includes a second condition, wherein the second condition includes that an uplink power parameter satisfies a condition; the uplink power parameter includes: PHR, and / or a power backoff value.

[0262] In some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter includes at least one of the following: L1-RSRP, L1-SINR; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: PHR; power backoff value.

[0263] In some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; the first reference signal resource set is different from the second reference signal resource set in that there is at least one reference signal resource, the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes reference signal resources corresponding to the last reported best K QCL parameters; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters.

[0264] In some embodiments, the second condition includes at least one of the following: the value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by MPE is greater than a fourth threshold, and MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0265] In some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource reported last time; the reference signal resource corresponding to the TCI state indicated by the network device; all reference signal resources reported last time; the reference signal resource with the worst quality in the last report; the TCI state indicated by the network device, including: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0266] In some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report; reference signal resources other than the reference signal resources included in the last report; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0267] In some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0268] 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:

[0269] Step S5101: Terminal 101 sends first information to network device 102.

[0270] In some embodiments, in response to a condition corresponding to an event being met, the terminal 101 sends first information to the network device 102 , where the first information is used to determine a first QCL parameter.

[0271] 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.

[0272] 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.

[0273] The disclosed embodiments provide a communication method that, based on the content of a beam report initiated by a terminal triggered by an event, enables the terminal and base station to determine a new beam based on the beam report and begin using the new beam when certain conditions are met. This solution reduces the signaling overhead of beam indication and also reduces beam update latency.

[0274] 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.

[0275] In some embodiments, the beam may optionally be referred to as any one 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 TCI state, Downlink TCI state (DL TCI state), Uplink TCI state (DL TCI state), unified TCI state, common TCI state, and spatial relation information, etc.

[0276] In some embodiments, the first condition includes at least one of the following events:

[0277] -A) used to trigger the reporting of downlink TCI status;

[0278] -B) used to trigger the reporting of uplink TCI status;

[0279] -C) used to trigger the reporting of the joint TCI status;

[0280] -D) is used to trigger the reporting of the TCI status of the neighboring cell.

[0281] In some embodiments, the L1-SRP and L1-SINR for -A) may be defined based on the measured L1-SRP and L1-SINR.

[0282] Optionally, -A) is defined based on the measured L1-SRP and L1-SINR, including at least one of the following:

[0283] -A1) The current beam L1-RSRP / L1-SINR is lower than the threshold;

[0284] -A2) The candidate beam L1-RSRP / L1-SINR is higher than the threshold;

[0285] -A3) The candidate beam L1-RSRP / L1-SINR is higher than the current beam by a first threshold (offset);

[0286] -A4) The current best K beams are different from at least one of the best K beams in the last report or do not include the best beam reported last time, or the best K beams do not include the beam most recently indicated by the base station, where K is an integer greater than 0.

[0287] Optionally, for -A4), it includes: the best beam difference in the two sets is higher than a second threshold.

[0288] Optionally, the current beam includes at least one of the following:

[0289] The best beam in the last report;

[0290] The beam corresponding to the joint / DL TCI state most recently indicated by the base station;

[0291] All beams in the last report;

[0292] The worst beam in the last report.

[0293] Optionally, the candidate beams include at least one of the following:

[0294] The non-optimal beam in the last report;

[0295] beams other than those included in the previous report;

[0296] Except for the beam corresponding to the joint or downlink TCI state (joint / DL TCI state) most recently indicated by the base station.

[0297] In some embodiments, the target value for -B) may be defined based on the measured L1-SRP and L1-SINR.

[0298] Optionally, -B) is defined based on the measured L1-SRP and L1-SINR, including at least one of the following:

[0299] -B1) The L1-RSRP / L1-SINR of the current beam is lower than the first threshold (when the current UL TCI state corresponds to a downlink reference signal resource).

[0300] -B2) The L1-RSRP / L1-SINR of the source downlink reference signal resource of QCL Type D of the uplink reference signal resource corresponding to the current uplink TCI state is lower than the first threshold (when the current UL TCI state corresponds to the uplink reference signal resource).

[0301] -B3) The uplink power parameter corresponding to QCL Type D corresponding to the current uplink TCI state deteriorates (meets the preset requirements).

[0302] Exemplarily, the deterioration of the uplink power parameter includes at least one of the following:

[0303] The power headroom report PHR is lower than the third threshold;

[0304] The power backoff value caused by the MPE influence is higher than a fourth threshold (MPE threshold).

[0305] -B4) L1-RSRP / L1-SINR of a reference signal on a candidate reference signal resource is greater than a second threshold, where the candidate reference signal resource is a reference signal resource measured by the terminal.

[0306] -B5) The uplink power parameters on QCL Type D corresponding to the candidate reference signal resource are good (meeting the preset requirements).

[0307] Exemplarily, the uplink power parameter is increased, including at least one of the following:

[0308] P-MPR is lower than the fifth threshold (e.g., P_MPR_00);

[0309] The PHR is higher than the sixth threshold.

[0310] -B6) The candidate L1-RSRP / L1-SINR is higher than the current uplink TCI state (including the first or second bullet) by an offset.

[0311] -B7) The uplink power parameter on QCL Type D corresponding to the candidate reference signal resource is better than the uplink power parameter of the current UL TCI state (meets the preset requirements).

[0312] Exemplarily, the uplink power parameter on QCL Type D corresponding to the candidate reference signal resource is better than the uplink power parameter of the current UL TCI state, including at least one of the following:

[0313] The candidate P-MPR is one offset lower than the current one;

[0314] The candidate PHR is one offset higher than the current one.

[0315] In some embodiments, -C) can be defined based on at least one of the first condition (event) and / or the second condition. That is, instead of defining a separate event for triggering the joint TCI state, at least one of the first event and at least one of the second event is included.

[0316] In some embodiments, conditions for triggering the joint TCI state may also be defined separately for -C).

[0317] Exemplarily, the candidate beam L1-RSRP / L1-SINR is higher than the threshold, and the uplink power parameters on QCL Type D corresponding to the candidate reference signal resource are good.

[0318] In some embodiments, -C) can be defined based on at least one of the first event, the second event, and the third event.

[0319] Optionally, the candidate reference signal resource corresponds to a reference signal resource of an additional cell.

[0320] Optionally, the following parameters of the additional cell can be independently configured (for example, configured to be the same as or different from the serving cell), including:

[0321] TCI status, corresponding thresholds and offset values, etc.

[0322] Through the embodiments of the present disclosure, the triggering events for event-triggered beam reporting by the terminal are defined, and the conditions for triggering beam reporting by the terminal are clarified. Using this solution reduces the signaling overhead of beam reporting and can also reduce the delay of beam updates.

[0323] 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.

[0324] 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.

[0325] 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.

[0326] 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.

[0327] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , the terminal 6100 may include a transceiver module 6101. In some embodiments, the transceiver module 6101 is configured to send first information to a network device in response to satisfying a condition corresponding to an event, where the first information is used to determine a first QCL parameter. Optionally, the transceiver module 6101 is configured to perform at least one of the communication steps (such as step S2101, but not limited thereto) such as sending and / or receiving performed by the terminal 101 in any of the above methods, and will not be described in detail here.

[0328] In some embodiments, in some embodiments, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for the transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for the downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for the uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for the neighboring cell, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

[0329] In some embodiments, the condition includes a first condition, the first condition includes a first parameter satisfying a condition, the first parameter includes: L1-RSRP and / or L1-SINR.

[0330] In some embodiments, the condition includes a second condition, wherein the second condition includes that an uplink power parameter satisfies a condition; the uplink power parameter includes: PHR, and / or a power backoff value.

[0331] In some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter includes at least one of the following: L1-RSRP, L1-SINR; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: PHR; power backoff value.

[0332] In some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; the first reference signal resource set is different from the second reference signal resource set in that there is at least one reference signal resource, the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes reference signal resources corresponding to the last reported best K QCL parameters; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters.

[0333] In some embodiments, the second condition includes at least one of the following: the value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by MPE is greater than a fourth threshold, and MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0334] In some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource reported last time; the reference signal resource corresponding to the TCI state indicated by the network device; all reference signal resources reported last time; the reference signal resource with the worst quality in the last report; the TCI state indicated by the network device, including: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0335] In some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report; reference signal resources other than the reference signal resources included in the last report; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0336] In some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0337] FIG6B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in FIG6B , the network device 6200 may include a transceiver module 6201. In some embodiments, the transceiver module 6201 is configured to receive first information sent by a terminal when a condition corresponding to an event is satisfied, and the first information is used to determine a first QCL parameter. Optionally, the transceiver module 6201 is configured to perform at least one of the communication steps (such as, but not limited to, step S2101) such as sending and / or receiving performed by the network device 102 in any of the above methods, and will not be further described herein.

[0338] In some embodiments, the event is used to trigger at least one of the following: reporting a reference signal resource identifier for a transmission configuration indication TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a reference signal resource identifier for a downlink TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for an uplink, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a joint TCI state, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; reporting a TCI state for a neighboring cell, wherein the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

[0339] In some embodiments, the condition includes a first condition, the first condition includes a first parameter satisfying a condition, the first parameter includes: L1-RSRP and / or L1-SINR.

[0340] In some embodiments, the condition includes a second condition, wherein the second condition includes that an uplink power parameter satisfies a condition; the uplink power parameter includes: PHR, and / or a power backoff value.

[0341] In some embodiments, the condition includes a third condition, the third condition includes the first condition and / or the second condition; the first condition includes a first parameter satisfying a condition, the first parameter includes at least one of the following: L1-RSRP, L1-SINR; the second condition includes an uplink power parameter satisfying a condition; the uplink power parameter includes at least one of the following: power headroom report PHR; power backoff value.

[0342] In some embodiments, the first condition includes at least one of the following: the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; the first difference is greater than the first difference threshold, wherein the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; the first reference signal resource set is different from the second reference signal resource set in that there is at least one reference signal resource, the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes reference signal resources corresponding to the last reported best K QCL parameters; the first reference signal resource set does not include the QCL parameters included in the TCI state most recently indicated by the network device, and the first reference signal resource set includes reference signal resources corresponding to the current best K QCL parameters.

[0343] In some embodiments, the second condition includes at least one of the following: the value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than a third threshold; the power backoff value caused by MPE is greater than a fourth threshold, and MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; the value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; the power backoff value corresponding to the candidate reference signal resource is less than the sixth threshold; the second difference is less than the second difference threshold, wherein the second difference is the difference between the power backoff value corresponding to the candidate reference signal resource and the power backoff value corresponding to the current QCL parameter; the third difference is greater than the third difference threshold, wherein the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

[0344] In some embodiments, the reference signal resource corresponding to the current QCL parameter includes at least one of the following: the best reference signal resource reported last time; the reference signal resource corresponding to the TCI state indicated by the network device; all reference signal resources reported last time; the reference signal resource with the worst quality in the last report; the TCI state indicated by the network device, including: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0345] In some embodiments, the candidate reference signal resources include at least one of the following: non-optimal reference signal resources in the last report; reference signal resources other than the reference signal resources included in the last report; reference signal resources other than the reference signal resources corresponding to the TCI state indicated by the network device, and the TCI state indicated by the network device includes: at least one of the joint TCI state, the downlink TCI state and the uplink TCI state.

[0346] In some embodiments, the event corresponding conditions include at least one of the following: the event corresponding to the first condition for triggering the reporting corresponding to the TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status; the event corresponding to the first condition for triggering the reporting corresponding to the downlink TCI status; the event corresponding to the second condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the uplink TCI status; the event corresponding to the third condition for triggering the reporting corresponding to the TCI status of the neighboring cell.

[0347] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0348] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0349] 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.

[0350] 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.

[0351] 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.

[0352] 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.

[0353] 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.

[0354] 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.

[0355] The chip 7200 includes one or more processors 7201. The chip 7200 is configured to execute any of the above methods.

[0356] 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.

[0357] 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).

[0358] 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.

[0359] 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.

[0360] 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.

[0361] 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: In response to an event corresponding condition being met, the 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 event is used to trigger at least one of the following: Reporting a reference signal resource identifier for transmitting a transmission configuration indication (TCI) state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Reporting a reference signal resource identifier for a downlink TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Reporting for an uplink TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Reporting for a joint TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Reporting for a neighboring cell TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

3. The method according to claim 1 or 2, characterized in that, The condition includes a first condition, and the first condition includes that a first parameter meets a condition. The first parameter includes at least one of the following: Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR).

4. The method according to claim 1 or 2, characterized in that, The condition includes a second condition, and the second condition includes that an uplink power parameter meets a condition; The uplink power parameter includes at least one of the following: Power headroom report (PHR); Power back-off value.

5. The method according to claim 1 or 2, characterized in that The condition includes a third condition, and the third condition includes the first condition and / or the second condition; The first condition includes that a first parameter meets a condition. The first parameter includes at least one of the following: Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference-plus-noise ratio (L1-SINR); The second condition includes that an uplink power parameter meets a condition; The uplink power parameter includes at least one of the following: Power headroom report (PHR); Power back-off value.

6. The method according to claim 3, wherein The first condition includes at least one of the following: The value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than a first threshold; The value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than a second threshold; A first difference is greater than a first difference threshold, where the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; Compared with a second reference signal resource set, there is at least one different reference signal resource in a first reference signal resource set. The first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes the reference signal resources corresponding to the best K QCL parameters reported last time; The first reference signal resource set does not include the QCL parameters included in the TCI state recently indicated by the network device, and the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters.

7. The method according to claim 4, wherein The second condition includes at least one of the following: The value of the power headroom report PHR corresponding to the current QCL parameter for the reference signal resource is less than the third threshold; The power back-off value caused by the maximum permissible exposure MPE is greater than the fourth threshold, where the MPE is the MPE corresponding to the reference signal resource of the current QCL parameter; The value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; The power back-off value corresponding to the candidate reference signal resource is less than the sixth threshold; The second difference is less than the second difference threshold, where the second difference is the difference between the power back-off value corresponding to the candidate reference signal resource and the power back-off value corresponding to the current QCL parameter; The third difference is greater than the third difference threshold, where the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource of the current QCL parameter.

8. The method according to claim 6, characterized in that The reference signal resource corresponding to the current QCL parameter includes at least one of the following: The best reference signal resource reported last time; The reference signal resource corresponding to the TCI state indicated by the network device; All reference signal resources in the last report; The reference signal resource with the worst quality in the last report; The TCI state indicated by the network device includes at least one of: combined TCI state, downlink TCI state, and uplink TCI state.

9. The method according to any one of claims 6 to 8, characterized in that, The candidate reference signal resource includes at least one of the following: The non-best reference signal resource in the last report; The reference signal resource other than the reference signal resources included in the last report; The reference signal resource other than the reference signal resource corresponding to the TCI state indicated by the network device, where the TCI state indicated by the network device includes at least one of: combined TCI state, downlink TCI state, and uplink TCI state.

10. The method according to any one of claims 2 to 9, characterized in that, The event corresponding conditions include at least one of the following: The event corresponding first condition for triggering the report of the TCI state; The event corresponding third condition for triggering the report of the TCI state; The event corresponding first condition for triggering the report of the downlink TCI state; The event corresponding second condition for triggering the report of the uplink TCI state; The event corresponding third condition for triggering the report of the uplink TCI state; The event corresponding third condition for triggering the report of the neighboring cell TCI state.

11. A communication method, characterized in that, The method includes: The network device receives the first information sent by the terminal when the event corresponding conditions are met, and the first information is used to determine the first QCL parameter.

12. The method according to claim 11, wherein The event is used to trigger at least one of the following: Report the reference signal resource identifier for transmitting the configured indication TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Report the reference signal resource identifier for the downlink TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Report for the uplink TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Report for the combined TCI state, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier; Report for the TCI state of neighboring cells, where the first QCL parameter is the QCL parameter corresponding to the reference signal resource identifier.

13. The method according to claim 11 or 12, characterized in that The condition includes a first condition, the first condition includes that a first parameter meets the condition, and the first parameter includes at least one of the following: Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference plus noise ratio L1-SINR.

14. The method according to claim 11, wherein The condition includes a second condition, the second condition includes that an uplink power parameter meets the condition; The uplink power parameter includes at least one of the following: Power headroom report PHR; Power back-off value.

15. The method according to claim 11 or 12, characterized in that, The condition includes a third condition, the third condition includes the first condition and / or the second condition; The first condition includes that a first parameter meets the condition, and the first parameter includes at least one of the following: Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference plus noise ratio L1-SINR; The second condition includes that an uplink power parameter meets the condition; The uplink power parameter includes at least one of the following: Power headroom report PHR; Power back-off value.

16. The method according to claim 13, wherein The first condition includes at least one of the following: The value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter is less than the first threshold; The value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter is greater than the second threshold; The first difference is greater than the first difference threshold, where the first difference is the difference between the value of the first parameter corresponding to the reference signal resource corresponding to the candidate QCL parameter and the value of the first parameter corresponding to the reference signal resource corresponding to the current QCL parameter; Compared with the second reference signal resource set, there is at least one different reference signal resource in the first reference signal resource set, the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters, and the second reference signal resource set includes the reference signal resources corresponding to the best K QCL parameters reported last time; The first reference signal resource set does not include the QCL parameter included in the TCI state recently indicated by the network device, and the first reference signal resource set includes the reference signal resources corresponding to the current best K QCL parameters.

17. The method according to claim 14, wherein The second condition includes at least one of the following: The value of the power headroom report PHR of the reference signal resource corresponding to the current QCL parameter is less than the third threshold; The power back-off value caused by the maximum permitted exposure MPE is greater than the fourth threshold, where the MPE is the MPE corresponding to the reference signal resource corresponding to the current QCL parameter; The value of the PHR corresponding to the candidate reference signal resource is greater than the fifth threshold; The power back-off value corresponding to the candidate reference signal resource is less than the sixth threshold; The second difference is less than the second difference threshold, where the second difference is the difference between the power back-off value corresponding to the candidate reference signal resource and the power back-off value corresponding to the current QCL parameter; The third difference is greater than the third difference threshold, where the third difference is the difference between the PHR corresponding to the candidate reference signal resource and the PHR corresponding to the reference signal resource corresponding to the current QCL parameter.

18. The method according to claim 16, wherein The reference signal resources corresponding to the current QCL parameters include at least one of the following: The best reference signal resources reported by the terminal last time; The reference signal resources corresponding to the TCI state indicated by the network device; All the reference signal resources in the terminal's last report; The reference signal resources with the worst quality in the terminal's last report; The TCI state indicated by the network device includes at least one of the combined TCI state, the downlink TCI state, and the uplink TCI state.

19. The method according to any one of claims 16 to 18, characterized in that The candidate reference signal resources include at least one of the following: The non-optimal reference signal resources in the terminal's last report; The reference signal resources other than those included in the terminal's last report; The reference signal resources other than those corresponding to the TCI state indicated by the network device, where the TCI state indicated by the network device includes at least one of the combined TCI state, the downlink TCI state, and the uplink TCI state.

20. The method according to any one of claims 12-19, characterized in that, The event corresponding conditions include at least one of the following: The first condition corresponding to the event for triggering the report corresponding to the TCI state; The third condition corresponding to the event for triggering the report corresponding to the TCI state; The first condition corresponding to the event for triggering the report corresponding to the downlink TCI state; The second condition corresponding to the event for triggering the report corresponding to the uplink TCI state; The third condition corresponding to the event for triggering the report corresponding to the uplink TCI state; The third condition corresponding to the event for triggering the report corresponding to the TCI state of the neighboring cell.

21. A communication method, characterized in that, The method includes: In response to satisfying the event corresponding conditions, the terminal sends first information to the network device, and the first information is used to determine the first QCL parameter; The network device receives the first information.

22. A terminal, characterized in that, It includes: A transceiver module, which is used for the terminal to send first information to the network device in response to satisfying the event corresponding conditions, and the first information is used to determine the first QCL parameter.

23. A network device, characterized in that, It includes: A transceiver module, which is used to receive the first information sent by the terminal when the event corresponding conditions are satisfied, and the first information is used to determine the first QCL parameter.

24. A terminal, characterized in that, It includes: One or more processors; Wherein, the processor is used to execute the communication method described in any one of claims 1 to 10.

25. A network device, characterized in that, It includes: One or more processors; Wherein, the processor is used to execute the communication method described in any one of claims 11 to 20.

26. A communication system, characterized in that, It includes a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of claims 1 to 10, and the network device is configured to implement the communication method described in any one of claims 11 to 20.

27. A storage medium, the storage medium stores instructions, characterized in that, When the instruction runs on the communication device, it enables the communication device to execute the communication method described in any one of claims 1 to 10 or 11 to 20.

Images