TCI state processing method, communication device, and storage medium

Abstract

Embodiments of the present disclosure provide a TCI state processing method, a communication device, and a storage medium. The TCI state processing method is performed by a UE and comprises: receiving at least one first instruction sent by a network device, wherein the at least one first instruction is used to activate N first TCI states, and the N first TCI states indicate N first beams for downlink transmission; on the basis of the N first TCI states, determining whether a known condition is met; and on the basis of whether the known condition is met, determining whether N second TCI states of the UE are known, wherein the N second TCI states are used to indicate N second beams for downlink reception by the UE, and N is a positive integer greater than or equal to 2.

Description

TCI status processing method, communication device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a transmission configuration indication (TCI) transmission method, a communication device, and a storage medium. Background Art

[0002] In a scenario with multiple Transmitting and Receiving Points (TRPs), one or more TCI states may be activated. These activated TCI states may be activated by one or more Media Access Control (MAC) Control Elements (CEs).

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a TCI status processing method, a communication device, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a TCI state processing method is provided, which is executed by a user equipment (UE), and the method includes: receiving at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams transmitted downlink; determining whether known conditions are met based on the N first TCI states; determining whether N second TCI states of the UE are known based on whether the known conditions are met; the N second TCI states are used to indicate N second beams received downlink by the UE; and N is a positive integer greater than or equal to 2.

[0006] According to a second aspect of an embodiment of the present disclosure, a UE is provided, the UE including:

[0007] A receiving module configured to receive at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission;

[0008] The processing module is configured to determine whether a known condition is met based on N first TCI states; determine whether the N second TCI states of the UE are known based on whether the known conditions are met; the N second TCI states are used to indicate the second beam received by the N UEs in downlink; N is a positive integer greater than or equal to 2.

[0009] According to a third aspect of an embodiment of the present disclosure, a method for processing a transmission configuration indication (TCI) state is provided, where the method is performed by a network device and includes:

[0010] At least one first instruction is sent to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions; and N is a positive integer greater than or equal to 2.

[0011] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, wherein the network device includes:

[0012] A sending module is configured to send at least one first instruction to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions; and N is a positive integer greater than or equal to 2.

[0013] According to the fifth aspect of an embodiment of the present disclosure, a communication device is provided, wherein the communication device includes: one or more processors; wherein the processor is used to call instructions so that the communication device executes the TCI status processing method provided by any technical method of the aforementioned first aspect and / or third aspect.

[0014] According to the sixth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the TCI status processing method provided by any technical solution of the first aspect.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a program product is provided, wherein when the program product is executed by a communication device, the communication device executes the TCI status processing method provided by any technical solution of the first aspect and / or the third aspect.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a communication system is provided, wherein the communication system includes: a network device and a user equipment UE;

[0017] The network device is configured to send at least one first instruction to the UE; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission;

[0018] The UE is configured to determine whether a known condition is met according to the N first TCI states;

[0019] Based on whether the known conditions are met, determine whether the N second TCI states of the UE are known; the N second TCI states are used to indicate the N second beams received by the UE downlink; and N is a positive integer greater than or equal to 2.

[0020] The technical approach provided by the embodiment of the present disclosure is that after receiving the first instruction, the UE will determine whether the known conditions are met based on the N first TCI states. Based on whether the known conditions are met, the UE can determine whether it already knows the N second TCI states that are the same as the N first TCI states or quasi-co-located with the N first TCI states, which has the characteristic of simple implementation.

[0021] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0023] FIG1 is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0024] FIG2A is a schematic flow chart showing a TCI status processing method according to an exemplary embodiment;

[0025] FIG2B is a schematic flow chart showing a TCI status processing method according to an exemplary embodiment;

[0026] FIG3A is a schematic flow chart showing a TCI status processing method according to an exemplary embodiment;

[0027] FIG3B is a schematic flow chart showing a TCI status processing method according to an exemplary embodiment;

[0028] FIG3C is a schematic flow chart showing a TCI status processing method according to an exemplary embodiment;

[0029] FIG4A is a schematic structural diagram of a UE according to an exemplary embodiment;

[0030] FIG4B is a schematic structural diagram of a network device according to an exemplary embodiment;

[0031] FIG5A is a schematic structural diagram of a communication device according to an exemplary embodiment;

[0032] FIG5B is a schematic structural diagram of a chip according to an exemplary embodiment. DETAILED DESCRIPTION

[0033] The embodiments of the present disclosure provide a TCI status processing method, a communication device, a communication system, and a storage medium.

[0034] A first aspect provides a TCI state processing method, which is executed by a terminal, and the method includes: receiving at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams sent downlink; determining whether known conditions are met based on the N first TCI states; determining whether the N second TCI states of the UE are known based on whether the known conditions are met; the N second TCI states are used to indicate the second beams received downlink by N UEs; N is a positive integer greater than or equal to 2.

[0035] In an embodiment of the present disclosure, after receiving the first instruction, the UE will determine whether the known conditions are met based on the N first TCI states. Based on whether the known conditions are met, the UE can determine whether it already knows the N second TCI states that are the same as the N first TCI states or quasi-co-located with the N first TCI states, which has the characteristic of simple implementation.

[0036] In some embodiments of the first aspect, the known condition includes at least one of the following: a first condition and a second condition; a first condition associated with N second TCI states and used for the UE to determine whether the N second TCI states are known; a second condition associated with a second TCI state and used for the UE to determine whether a second TCI state is known.

[0037] The embodiments of the present disclosure provide two known conditions that can be used to meet the needs of different application scenarios.

[0038] In some embodiments of the first aspect, determining whether the N second TCI states of the UE are known based on whether a known condition is met includes: if a first condition is met, determining that the N second TCI states of the UE are known; if the first condition is not met, determining that the N second TCI states are unknown; if a second condition is met, determining that the second TCI state corresponding to the second condition is known;

[0039] If the second condition is not met, it is determined that the second TCI state corresponding to the second condition is unknown. The embodiment of the present disclosure discloses how to determine whether the N second TCI states are known.

[0040] In some embodiments of the first aspect, the first condition includes at least one of the following:

[0041] There are at least N beams indicated by the third TCI state that are quasi-co-located with the N beams indicated by the first TCI state; the N third TCI states are the TCI states last reported by the UE to the network device;

[0042] At least N reference signals RS associated with the third TCI state can be detected during the active TCI state switching of the UE;

[0043] The beam measurement quality of at least N third TCI states is greater than or equal to a first quality threshold;

[0044] The time difference between at least N pieces of RS measurement information in the third TCI state and the current moment is less than the first time threshold;

[0045] In which, when the first condition is met, the second TCI state belongs to at least N third TCI states.

[0046] The embodiment of the present disclosure provides an example of the first condition, but the specific implementation is not limited to this example.

[0047] In some embodiments of the first aspect, the scenario in which the first condition is applied includes at least one of the following:

[0048] A single node schedules N downlink transmissions and one first instruction activates N first TCI states;

[0049] A single node schedules N downlink transmissions and N first instructions respectively activate N first TCI states;

[0050] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0051] The embodiments of this disclosure provide application scenarios for the first condition, but the specific implementation is not limited to the above scenario. In some cases, the first condition may be preferentially applied to scenarios where a single node schedules N downlink transmissions and a first instruction activates N first TCI states, and / or where a single node schedules N downlink transmissions and N first instructions respectively activate N first TCI states.

[0052] In some embodiments of the first aspect, the second condition includes at least one of the following:

[0053] At least during a switching period in which the UE performs an activated TCI state, there is at least one beam indicated by the fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0054] At least one fourth TCI state is the TCI state last reported by the UE to the network device;

[0055] The time difference between the RS measurement information of at least one fourth TCI state and the current moment is less than the second time threshold;

[0056] The UE sends a beam measurement result to the network device based on a group; a group includes at least one fourth TCI state or at least one beam; the beam measurement quality of at least one fourth TCI state is higher than a second quality threshold;

[0057] A beam indicated by at least one fourth TCI state during an active TCI state switch of the UE is capable of being detected;

[0058] At least one reference signal RS associated with the fourth TCI state can be detected during a period in which the active TCI state of the UE is switched to the second TCI state;

[0059] Wherein, when the second condition is met, the second TCI state belongs to at least one fourth TCI state.

[0060] The embodiment of the present disclosure provides a specific implementation of the second condition, but the specific implementation is not limited to this example.

[0061] In some embodiments of the first aspect, scenarios in which the second condition is applied include:

[0062] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0063] A second aspect provides a UE, the UE including:

[0064] A receiving module configured to receive at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission;

[0065] The processing module is configured to determine whether a known condition is met based on N first TCI states; determine whether the N second TCI states of the UE are known based on whether the known conditions are met; the N second TCI states are used to indicate the second beam received by the N UEs in downlink; N is a positive integer greater than or equal to 2.

[0066] In a third aspect, an embodiment of the present disclosure provides a TCI status processing method, wherein the method is performed by a network device, and the method includes:

[0067] At least one first instruction is sent to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams transmitted in downlink; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions, and the N second TCI states are used to indicate N second beams received in downlink by the UE, where N is a positive integer greater than or equal to 2.

[0068] In some embodiments of the third aspect, the known condition includes at least one of the following: a first condition and a second condition;

[0069] a first condition associated with the N second TCI states and used by the UE to determine whether the N second TCI states are known;

[0070] A second condition is associated with a second TCI state and is used by the UE to determine whether a second TCI state is known.

[0071] In some embodiments of the third aspect, the first condition includes at least one of the following:

[0072] There are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states; the N third TCI states are the TCI states last reported by the UE to the network device;

[0073] The at least N reference signals RS associated with the third TCI state can be detected during the activated TCI state switching of the UE;

[0074] The beam measurement qualities of the at least N third TCI states are greater than or equal to a first quality threshold;

[0075] The time difference between the RS measurement information of the at least N third TCI states and the current moment is less than the first time threshold;

[0076] Among them, when the first condition is met, the second TCI state belongs to the at least N third TCI states.

[0077] In some embodiments of the third aspect, the scenario in which the first condition is applied includes at least one of the following:

[0078] A single node schedules N downlink transmissions and a first instruction activates the N first TCI states;

[0079] A single node schedules N downlink transmissions and N first instructions respectively activate the N first TCI states;

[0080] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0081] In some embodiments of the third aspect, the second condition includes at least one of the following:

[0082] At least during a period in which the UE switches to an activated TCI state, there is at least one beam indicated by a fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0083] The at least one fourth TCI state is the TCI state last reported by the UE to the network device;

[0084] The time difference between the RS measurement information of the at least one fourth TCI state and the current moment is less than the second time threshold;

[0085] The UE sends a beam measurement result to the network device based on a group; one of the groups includes the at least one fourth TCI state or the at least one beam; and the beam measurement quality of the at least one fourth TCI state is higher than a second quality threshold;

[0086] A beam indicated by at least one fourth TCI state during an activated TCI state switch of the UE is detectable;

[0087] The reference signal RS associated with the at least one fourth TCI state can be detected during a period in which the activated TCI state of the UE is switched to the second TCI state;

[0088] In which, when the second condition is met, the second TCI state belongs to the at least one fourth TCI state.

[0089] In some embodiments of the third aspect, scenarios in which the second condition is applied include:

[0090] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0091] According to a fourth aspect, a network device is provided, wherein the network device includes:

[0092] A sending module is configured to send at least one first instruction to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions, and the N second TCI states are used to indicate N second beams for downlink reception by the UE, where N is a positive integer greater than or equal to 2.

[0093] In a fifth aspect, an embodiment of the present disclosure provides a communication device, the communication device including: one or more processors;

[0094] The processor is used to call instructions to enable the communication device to execute the TCI status processing method described in the optional implementation of the first aspect and / or the third aspect.

[0095] In a sixth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the TCI status processing method described in the optional implementation of the first aspect and / or the third aspect.

[0096] In a seventh aspect, an embodiment of the present disclosure provides a communication system, wherein the communication system includes: a network device and a user equipment UE;

[0097] The network device is configured to send at least one first instruction to the UE; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission;

[0098] The UE is configured to execute the TCI state processing method provided by any embodiment of the first aspect.

[0099] In an eighth aspect, an embodiment of the present disclosure provides a program product. When the program product is executed by a communication device, the communication device executes the TCI status processing method described in the optional implementation manner of the first aspect.

[0100] In a ninth aspect, an embodiment of the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the TCI status processing method described in the optional implementation manner of the first aspect.

[0101] It is understandable that the above-mentioned terminals, network devices, communication systems, program products, and computer programs are all used to execute the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0102] The embodiments of the present disclosure propose a TCI state processing method, communication equipment, communication system and storage medium. The embodiments of the present disclosure are not exhaustive, but are only 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, the method 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0103] 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.

[0104] 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.

[0105] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "the", "the", etc., can mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0106] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0107] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0108] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical descriptions depending on the circumstances: 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 same applies when there are more branches, such as A, B, and C.

[0109] In some embodiments, "A or B" and other descriptions may include the following technical approaches, depending on the circumstances: 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, and C.

[0110] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different. For another example, if the description object is "information", then the "first category of information" and the "second category of information" can be the same information or different information, and their contents can be the same or different.

[0111] 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.

[0112] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0113] 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.

[0114] 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.

[0115] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0121] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0122] 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.

[0123] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0124] As shown in Figure 1, a communication system 100 includes a terminal 101 and a network device 102. The network device 102 may include an access network device and / or a core network device.

[0125] 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.

[0126] In some embodiments, the terminal is also referred to as User Equipment (UE).

[0127] In some embodiments, the access network device may be, 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.

[0128] In some embodiments, the technical approach of the present disclosure may be applicable 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 may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

[0129] 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.

[0130] In some embodiments, the core network device may be a single device including a first network element, or may be a plurality of devices or a group of devices, each including a first network element. 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).

[0131] 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 approach of the embodiment of the present disclosure, and does not constitute a limitation on the technical approach provided by 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 approach provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0132] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0133] 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, systems using configuration methods for other resources, and next-generation systems based on and extending these systems. Furthermore, multiple systems may be combined (for example, LTE and NR).

[0134] For mTRP, the UE has different transmission schemes, such as simultaneous reception by multiple antenna panels or non-simultaneous reception by a single antenna panel.

[0135] To simultaneously receive in Frequency Range 2 (FR2), the MAC CE-based TCI state switch requires two panels, each receiving downlink reception from one TRP.

[0136] The network (NW) needs to activate or switch two TCI states through two panels to better receive downlink signals from two TRPs.

[0137] Before activating the TCI state pair change, the NW needs to perform Layer 1 Reference Signal Received Power (L1-RSRP) on the two TRPSs and report the best beam pair in a group-based reporting manner. In the group-based report, the two TCI states related to the best beam pair will be provided to the network (Network, NW). Later, the NW will activate the dual TCI state and send it to the UE. For the two conditions of consistent and unknown received TCI states, the UE will have different behaviors or different communication requirements. For example, if the UE's received TCI state is known, the UE can skip the received (Received, RX) beam scanning process. For example, if the UE's received TCI state is unknown, the UE needs to perform beam scanning before performing multi-downlink reception.

[0138] As shown in FIG2A , an embodiment of the present disclosure provides a TCI status processing method, which is executed by a communication system. The method may include:

[0139] S2101: The network device sends a first instruction.

[0140] In some embodiments, the number of the first instructions may be one or more.

[0141] In some embodiments, the first instruction may include, but is not limited to, a MAC CE.

[0142] The first instruction is used to activate a first TCI state. The first TCI state indicates a first beam used for downlink transmission of the network device.

[0143] In some embodiments, a network device sends a first instruction that simultaneously activates N first TCI states.

[0144] In some embodiments, N is a positive integer greater than or equal to 2.

[0145] In some embodiments, a network device sends N first instructions, and each first instruction activates a first TCI state.

[0146] In some embodiments, N network devices send N first instructions, and each first instruction indicates a first TCI state used by the corresponding network device.

[0147] Exemplarily, the network device may be a base station, specifically the network device may be a TRP, etc.

[0148] S2102: Determine whether the N first TCI states meet known conditions.

[0149] In some embodiments, the known condition is used to determine whether the UE has determined N second TCI states, and whether the N second TCI states are quasi-co-located with the N first TCI states, respectively. For example, any second TCI state among the N second TCI states is quasi-co-located with a first TCI state among the N first TCI states.

[0150] The quasi-co-location of the second TCI state and the first TCI state can be understood as: the second TCI state and the first TCI state have the same type D quasi-co-location (QCL).

[0151] For example, the value of N can be any positive integer greater than or equal to 2.

[0152] In some embodiments, the known condition may include the first condition and / or the second condition.

[0153] In some embodiments, the known condition can be understood as a condition in which N first TCI states or N second TCI states are known.

[0154] Since the beams indicated by the N second TCI states may be the same as the beams indicated by the N first TCI states, or the beams indicated by the N second TCI states are at least quasi-co-located with the beams indicated by the N first TCI states, if the N second TCI states are known, it is equivalent to knowing the N first TCI states.

[0155] In some embodiments, one first condition is associated with the N second TCI states and is used for the UE to determine whether the N second TCI states are known.

[0156] In some other embodiments, a second condition is associated with a second TCI state and is used by the UE to determine whether the second TCI state is known.

[0157] In some embodiments, the first condition includes at least one of the following:

[0158] There are at least N beams indicated by the third TCI state that are quasi-co-located with the N beams indicated by the first TCI state.

[0159] In some embodiments, the N third TCI states are the TCI states last reported by the UE to the network device.

[0160] If there are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states, the subsequent N second TCIs may be selected from the at least N second TCI states.

[0161] Exemplarily, at least N third TCI states may be the TCI state of the downlink receive beam last reported by the UE to the network device.

[0162] As another example, at least N third TCI states may indicate the downlink receiving beam (referred to as receiving beam) corresponding to the beam information that the UE finally reported to the network device.

[0163] At least N reference signals RS associated with the third TCI state can be detected during the active TCI state switching of the UE.

[0164] In some embodiments, the TCI state of the UE's current receiving beam is not the third TCI state or the second TCI state, and the UE needs to receive the downlink transmission of the first beam indicated by the network device in the first TCI state, then the UE's currently activated TCI state needs to be switched to the second TCI state. In order to ensure that the UE can successfully receive the downlink transmission of the network device after switching to the second TCI state, it is necessary to ensure that the reference signals in the TCI state can be detected by the UE during the process of switching the activated TCI state to the corresponding TCI state. The reference signals here include but are not limited to synchronization signal broadcast blocks (Synchronization Signal and PBCH block, SSB) and tracking reference signals (TRS).

[0165] The beam measurement qualities of at least N third TCI states are greater than or equal to a first quality threshold.

[0166] Exemplarily, the beam measurement quality may include but is not limited to: signal-to-noise ratio (SNR), signal-to-interference plus noise power ratio (SINR), etc.

[0167] For example, the first quality threshold may be equal to -3dB, -2dB, -4dB or 5dB.

[0168] The time difference between at least N pieces of RS measurement information in the third TCI state and the current moment is less than the first time threshold.

[0169] In some embodiments, the time difference between the RS measurement information of the N third TCI states and the current moment cannot be too large. If the time difference is too large, the channel condition corresponding to the third TCI state may have changed.

[0170] In some embodiments, the first time threshold may be 1280ms, 640ms, 320ms, etc. In some embodiments, the first time threshold may be a specified number of radio frames, subframes, or time slots, etc.

[0171] In some embodiments, the first time threshold may be indicated by the network device or may be agreed upon by a protocol.

[0172] When the first condition is met, the second TCI state belongs to at least N third TCI states. Exemplarily, when the first condition is met, the UE selects N second TCI states from the at least N third TCI states according to the first TCI.

[0173] In some embodiments, the application scenario of the first condition may include at least one of the following:

[0174] A single node schedules N downlink transmissions and one first instruction activates N first TCI states;

[0175] A single node schedules N downlink transmissions and N first instructions respectively activate N first TCI states;

[0176] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0177] In some embodiments, the single node can be understood as a single TRP. Exemplarily, any one of the multiple TRPs that perform downlink transmissions simultaneously. For example, in a carrier aggregation or dual connectivity scenario, the TRP that schedules N downlink transmissions can be the TRP corresponding to the primary cell. Exemplarily, the scenario in which a single node schedules N downlink transmissions can be understood as single downlink control information (sDCI).

[0178] If a single node schedules N downlink transmissions, the node may activate N first TCI states respectively through one first instruction or N first instructions.

[0179] In some embodiments, N nodes each schedule N downlink transmissions, and the N nodes each send N first instructions. The N nodes herein are nodes that execute the N downlink transmissions. Exemplarily, the scenario in which N nodes schedule N downlink transmissions can be understood as a scenario of multi-downlink control information (mDCI).

[0180] In some embodiments, the second condition includes at least one of the following:

[0181] At least during the period when the UE switches the activated TCI state, there is at least one fourth TCI state that is quasi-co-located with the first TCI state indication; the at least one fourth TCI state is the TCI state last reported by the UE to the network device.

[0182] In some embodiments, during a UE switching between active TCI states, at least one beam indicated by a fourth TCI state is quasi-co-located with a beam indicated by a first TCI state. Exemplarily, the beam indicated by the fourth TCI state and the beam indicated by the first TCI state have the same QCL type D.

[0183] In some embodiments, a time difference between at least one RS measurement information of the fourth TCI state and the current moment is less than a second time threshold.

[0184] In some embodiments, the second time threshold may be equal to the first time threshold, or may not be equal to the first time threshold. In some embodiments, the second time threshold may include but is not limited to 1280ms, 640ms, 1440ms, etc.

[0185] In some embodiments, the second time threshold may be configured by the network device or agreed upon by a protocol.

[0186] In some embodiments, the UE sends beam measurement results to the network device based on a group; a group includes at least one fourth TCI state or at least one beam; the beam measurement quality of at least one fourth TCI state is higher than the second quality threshold.

[0187] In some embodiments, a beam indicated by at least one fourth TCI state during an active TCI state switch of the UE can be detected.

[0188] In some embodiments, at least one reference signal RS associated with the fourth TCI state can be detected during a period in which the active TCI state of the UE switches to the second TCI state.

[0189] Likewise, the RS may include but is not limited to an SSB, a TRS and / or a Channel State Information-Reference Signal (CSI-RS).

[0190] Here, the reference signal RS associated with at least one fourth TCI state can be understood as an RS sent on a beam indicated by at least one fourth TCI state.

[0191] When the second condition is met, the second TCI state belongs to at least one fourth TCI state.

[0192] S2103: Determine whether the N second TCI states of the UE are known.

[0193] In some embodiments, whether the N second TCI states of the UE are known is determined based on whether a known condition is met.

[0194] In some embodiments, the first condition is met, and it is determined that the N second TCI states of the UE are known;

[0195] In some embodiments, if the first condition is not met, it is determined that the N second TCI states are unknown;

[0196] In some embodiments, if the first condition is not met, determining whether each of the N second TCI states is known according to the second condition;

[0197] In some embodiments, if the second condition is met, it is determined that the second TCI state corresponding to the second condition is known. If this approach is adopted, the second conditions corresponding to the N first TCI states must all be met in order to determine that the N second TCI states of the UE are met.

[0198] In some embodiments, if the second condition is not met, the second TCI state corresponding to the second condition is determined to be unknown. In this case, if the second condition corresponding to one first TCI state is not met, it can be determined that all N second TCI states are unknown.

[0199] In some embodiments, the method provided in this embodiment may be directed to a UE having multiple antenna panels.

[0200] In some embodiments, step S2103 may be optional. For example, after determining whether the known conditions are met, the UE may determine whether beam scanning is required. Whether to determine the second TCI state may be determined based on the UE's current state. For example, if the UE currently refuses to perform downlink reception, step S2103 may be skipped. Alternatively, the process of determining whether the known conditions are met already determines which third or fourth TCI states can be used as the second TCI state, eliminating the need for the additional step of determining the second TCI state.

[0201] In some embodiments, if the second TCI state is known, the UE receives the downlink sent by the network device based on the first TCI state according to the second TCI state without performing beam scanning.

[0202] In some embodiments, if the second TCI state is unknown, the UE performs beam scanning and determines the second TCI state based on the beam scanning result and the N first TCI states. The second TCI state may be the first TCI state, or the beam indicated by the second TCI state may be quasi-co-located with the beam indicated by the first TCI state.

[0203] In some embodiments, if the second TCI state is unknown, beam scanning is performed according to the first TCI state, for example, scanning the beam direction indicated by the first TCI state.

[0204] In some embodiments, if some of the N second TCI states are unknown, beam scanning is performed based on the failure to find a first TCI state that is identical or quasi-co-located with the second TCI state.

[0205] As shown in FIG2B , an embodiment of the present disclosure provides a TCI status processing method, which is executed by a communication system. The method may include:

[0206] S2201: The network device sends a first instruction.

[0207] In some embodiments, the number of the first instructions may be one or more.

[0208] In some embodiments, the first instruction may include, but is not limited to, a MAC CE.

[0209] The first instruction is used to activate a first TCI state. The first TCI state indicates a first beam used for downlink transmission of the network device.

[0210] In some embodiments, a network device sends a first instruction that simultaneously activates N first TCI states.

[0211] In some embodiments, N is a positive integer greater than or equal to 2.

[0212] In some embodiments, a network device sends N first instructions, and each first instruction activates a first TCI state.

[0213] In some embodiments, N network devices send N first instructions, and each first instruction indicates a first TCI state used by the corresponding network device.

[0214] Exemplarily, the network device may be a base station, specifically the network device may be a TRP, etc.

[0215] S2202: Determine whether the N first TCI states meet known conditions.

[0216] In some embodiments, the known condition is used to determine whether the UE has determined N second TCI states, and whether the N second TCI states are quasi-co-located with the N first TCI states, respectively. For example, any second TCI state among the N second TCI states is quasi-co-located with a first TCI state among the N first TCI states.

[0217] The quasi-co-location of the second TCI state and the first TCI state can be understood as: the second TCI state and the first TCI state have the same type D quasi-co-location (QCL).

[0218] In some embodiments, the known condition may include a second condition.

[0219] In some embodiments, the known condition can be understood as a condition in which N first TCI states or N second TCI states are known.

[0220] Since the beams indicated by the N second TCI states may be the same as the beams indicated by the N first TCI states, or the beams indicated by the N second TCI states are at least quasi-co-located with the beams indicated by the N first TCI states, if the N second TCI states are known, it is equivalent to knowing the N first TCI states.

[0221] In some other embodiments, a second condition is associated with a second TCI state and is used by the UE to determine whether the second TCI state is known.

[0222] In some embodiments, the application scenario of the second condition may include at least one of the following:

[0223] At least during the period when the UE switches the activated TCI state, there is at least one fourth TCI state that is quasi-co-located with the first TCI state indication; the at least one fourth TCI state is the TCI state last reported by the UE to the network device.

[0224] In some embodiments, during a UE switching between active TCI states, at least one beam indicated by a fourth TCI state is quasi-co-located with a beam indicated by a first TCI state. Exemplarily, the beam indicated by the fourth TCI state and the beam indicated by the first TCI state have the same QCL type D.

[0225] In some embodiments, a time difference between at least one RS measurement information of the fourth TCI state and the current moment is less than a second time threshold.

[0226] In some embodiments, the second time threshold may be equal to the first time threshold, or may not be equal to the first time threshold. In some embodiments, the second time threshold may include but is not limited to 1280ms, 640ms, 1440ms, etc.

[0227] In some embodiments, the second time threshold may be configured by the network device or agreed upon by a protocol.

[0228] In some embodiments, the UE sends beam measurement results to the network device based on a group; a group includes at least one fourth TCI state or at least one beam; the beam measurement quality of at least one fourth TCI state is higher than the second quality threshold.

[0229] In some embodiments, a beam indicated by at least one fourth TCI state during an active TCI state switch of the UE can be detected.

[0230] In some embodiments, at least one reference signal RS associated with the fourth TCI state can be detected during a period in which the active TCI state of the UE switches to the second TCI state.

[0231] Likewise, the RS may include but is not limited to an SSB, a TRS and / or a Channel State Information-Reference Signal (CSI-RS).

[0232] Here, the reference signal RS associated with at least one fourth TCI state can be understood as an RS sent on a beam indicated by at least one fourth TCI state.

[0233] When the second condition is met, the second TCI state belongs to at least one fourth TCI state.

[0234] At least during a switching period in which the UE performs an activated TCI state, there is at least one beam indicated by the fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0235] The at least one fourth TCI state is the TCI state last reported by the UE to the network device. The time difference between the RS measurement information of the at least one fourth TCI state and the current time is less than the second time threshold;

[0236] The UE sends beam measurement results to the network device based on the group; a group includes at least one fourth TCI state or at least one beam; the beam measurement quality of at least one fourth TCI state is higher than the second quality threshold.

[0237] A beam indicated by at least one fourth TCI state during active TCI state switching of the UE can be detected.

[0238] At least one reference signal RS associated with the fourth TCI state can be detected during a period in which the active TCI state of the UE is switched to the second TCI state.

[0239] When the second condition is met, the second TCI state belongs to at least one fourth TCI state.

[0240] In some embodiments, application scenarios of the second condition include but are not limited to: N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0241] In some embodiments, the application scenarios of the second condition may also include but are not limited to one of the following: a single node schedules N downlink transmissions and one first instruction activates N first TCI states; a single node schedules N downlink transmissions and N first instructions respectively activate N first TCI states.

[0242] In some embodiments, the single node can be understood as a single TRP. Exemplarily, any one of the multiple TRPs that perform downlink transmissions simultaneously. For example, in a carrier aggregation or dual connectivity scenario, the TRP that schedules N downlink transmissions can be the TRP corresponding to the primary cell. Exemplarily, the scenario in which a single node schedules N downlink transmissions can be understood as single downlink control information (sDCI).

[0243] If a single node schedules N downlink transmissions, the node may activate N first TCI states respectively through one first instruction or N first instructions.

[0244] In some embodiments, N nodes each schedule N downlink transmissions, and the N nodes each send N first instructions. The N nodes herein are nodes that execute the N downlink transmissions. Exemplarily, the scenario in which N nodes schedule N downlink transmissions can be understood as a scenario of multi-downlink control information (mDCI).

[0245] S2203: Determine whether the N second TCI states of the UE are known.

[0246] In some embodiments, whether the N second TCI states of the UE are known is determined based on whether a known condition is met.

[0247] In some embodiments, based on the N first TCI states, it is determined whether the N first TCI states are known.

[0248] For example, after receiving a first instruction indicating a first TCI state, it is determined whether the UE meets a known condition (ie, a second condition) of the first TCI state according to the first TCI state indicated by the first instruction.

[0249] In some embodiments, if the second condition is met, it is determined that the second TCI state corresponding to the second condition is known. If this approach is adopted, the second conditions corresponding to the N first TCI states must all be met in order to determine that the N second TCI states of the UE are met.

[0250] In some embodiments, the second condition is not met and the second TCI state corresponding to the second condition is determined to be unknown.

[0251] In this case, the second condition corresponding to one first TCI state is not met, and it can be determined that the N second TCI states are all unknown.

[0252] In some embodiments, the method provided in this embodiment may be directed to a UE having multiple antenna panels.

[0253] In some embodiments, if the second TCI state is known, the UE receives the downlink sent by the network device based on the first TCI state according to the second TCI state without performing beam scanning.

[0254] In some embodiments, if the second TCI state is unknown, the UE performs beam scanning and determines the second TCI state based on the beam scanning result and the N first TCI states. The second TCI state may be the first TCI state, or the beam indicated by the second TCI state may be quasi-co-located with the beam indicated by the first TCI state.

[0255] In some embodiments, if the second TCI state is unknown, beam scanning is performed according to the first TCI state, for example, scanning the beam direction indicated by the first TCI state.

[0256] In some embodiments, if some of the N second TCI states are unknown, beam scanning is performed based on the failure to find a first TCI state that is identical or quasi-co-located with the second TCI state.

[0257] In view of this, when the UE knows the prerequisite for receiving the TCI state, how to determine the known conditions for the UE to receive the TCI state.

[0258] In some embodiments, the method provided in this embodiment may be directed to a UE having multiple antenna panels.

[0259] In some embodiments, step S2203 may be optional. For example, after determining whether the known conditions are met, the UE may determine whether beam scanning is required. Whether to determine the second TCI state may be determined based on the UE's current state. For example, if the UE currently refuses to perform downlink reception, step S2203 may be skipped. Alternatively, the determination of which fourth TCI states can be used as the second TCI state is known during the process of determining whether the known conditions are met, eliminating the need for the additional step of determining the second TCI state.

[0260] As shown in FIG3A , an embodiment of the present disclosure provides a TCI status processing method, which is executed by a UE. The method may include:

[0261] S3101: Receive the first instruction.

[0262] In some embodiments, the UE may have multiple antenna panels. In this way, the UE can use multiple antenna panels to transmit data with multiple TRPs, for example, to receive downlink transmissions from multiple TRPs.

[0263] In some embodiments, the UE receives one or more first instructions from a cell (TRP).

[0264] In some embodiments, the UE receives multiple first instructions from multiple cells (TRPs).

[0265] In some embodiments, one first instruction may instruct activation of N first TCI states.

[0266] In some embodiments, a first instruction may indicate activation of a first TCI state.

[0267] In this public embodiment, the first instruction, the first TCI state, N and / or TRP and other related overviews can be found in the relevant parts of the corresponding embodiments of Figures 2A and / or 2B.

[0268] S3102: Determine whether the N first TCI states meet known conditions.

[0269] In some embodiments, optional implementations of S3102 may refer to S2102 of the corresponding embodiment in FIG. 2A .

[0270] S3103: Determine whether N second TCI states are known.

[0271] In some embodiments, an optional implementation of S3103 can refer to S2103 in the corresponding embodiment of Figure 2A . Similarly, S3103 is an optional step.

[0272] As shown in FIG3B , an embodiment of the present disclosure provides a TCI status processing method, which is executed by a UE. The method may include:

[0273] S3201: Receive a first instruction.

[0274] In some embodiments, the UE may have multiple antenna panels. In this way, the UE can use multiple antenna panels to transmit data with multiple TRPs, for example, to receive downlink transmissions from multiple TRPs.

[0275] In some embodiments, the UE receives one or more first instructions from a cell (TRP).

[0276] In some embodiments, the UE receives multiple first instructions from multiple cells (TRPs).

[0277] In some embodiments, one first instruction may instruct activation of N first TCI states.

[0278] In some embodiments, a first instruction may indicate activation of a first TCI state.

[0279] In this public embodiment, the first instruction, the first TCI state, N and / or TRP and other related overviews can be found in the relevant parts of the corresponding embodiments of Figures 2A and / or 2B.

[0280] S3202: Determine whether a known condition is met based on the N first TCI states. For example, the known condition is the second condition.

[0281] In some embodiments, optional implementations of S3102 may refer to S2202 of the corresponding embodiment in FIG. 2B .

[0282] S3203: Determine N second TCI states.

[0283] In some embodiments, an optional implementation of S3103 can refer to S2203 of the corresponding embodiment of Figure 2B . Similarly, S3103 is an optional step.

[0284] As shown in FIG3C , an embodiment of the present disclosure provides a TCI status processing method, which is executed by a network device. The method may include:

[0285] S3301: Send at least one first instruction.

[0286] In some embodiments, the network device sends at least one first instruction to the UE.

[0287] In some embodiments, the at least one first instruction is used to activate N first TCI states. The N first TCI states indicate N first beams for downlink transmission.

[0288] In some embodiments, the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions.

[0289] Exemplarily, the first instruction may include but is not limited to MAC CE.

[0290] In some embodiments, in the case of single-node scheduling, the network device may send one or N first instructions. When the network device sends one first instruction, the first instruction is used to indicate N first TCI states. When the network device sends N first instructions, one first instruction is used to indicate one first TCI state.

[0291] In some embodiments, in the case of multi-node scheduling, the network device sends a first instruction, where the first instruction is used to indicate a first TCI state. A total of N network devices send N first instructions to the UE.

[0292] It is worth noting that the descriptions of the first TCI state, N, network device, known conditions, and the second TCI state can be found in the embodiments corresponding to FIG. 2A and / or FIG. 2B , and are not repeated here. For example, the known conditions may include, but are not limited to, the first condition and / or the second condition. The first condition and / or the second condition can be found in the embodiments corresponding to FIG. 2A and / or FIG. 2B .

[0293] In some embodiments, the known condition includes at least one of the following: a first condition and a second condition;

[0294] a first condition associated with the N second TCI states and used by the UE to determine whether the N second TCI states are known;

[0295] A second condition is associated with a second TCI state and is used by the UE to determine whether a second TCI state is known.

[0296] In some embodiments, the first condition includes at least one of the following:

[0297] There are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states; the N third TCI states are the TCI states last reported by the UE to the network device;

[0298] The at least N reference signals RS associated with the third TCI state can be detected during the activated TCI state switching of the UE;

[0299] The beam measurement qualities of the at least N third TCI states are greater than or equal to a first quality threshold;

[0300] The time difference between the RS measurement information of the at least N third TCI states and the current moment is less than the first time threshold;

[0301] Among them, when the first condition is met, the second TCI state belongs to the at least N third TCI states.

[0302] In some embodiments, the scenarios in which the first condition is applied include at least one of the following:

[0303] A single node schedules N downlink transmissions and a first instruction activates the N first TCI states;

[0304] A single node schedules N downlink transmissions and N first instructions respectively activate the N first TCI states;

[0305] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0306] In some embodiments, the second condition includes at least one of the following:

[0307] At least during a period in which the UE switches to an activated TCI state, there is at least one beam indicated by a fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0308] The at least one fourth TCI state is the TCI state last reported by the UE to the network device;

[0309] The time difference between the RS measurement information of the at least one fourth TCI state and the current moment is less than the second time threshold;

[0310] The UE sends a beam measurement result to the network device based on a group; one of the groups includes the at least one fourth TCI state or the at least one beam; and the beam measurement quality of the at least one fourth TCI state is higher than a second quality threshold;

[0311] A beam indicated by at least one fourth TCI state during an activated TCI state switch of the UE is detectable;

[0312] In some embodiments, the reference signal RS associated with the at least one fourth TCI state can be detected during a period in which the activated TCI state of the UE is switched to the second TCI state;

[0313] In which, when the second condition is met, the second TCI state belongs to the at least one fourth TCI state.

[0314] In some embodiments, scenarios in which the second condition is applied include:

[0315] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0316] For sDCI scenarios, dual TCI states are activated in a single MAC CE. Therefore, the known conditions in sDCI scenarios are defined based on FR2 Group Based Reporting (GBBR), as shown below:

[0317] The dual TCI status is determined to be known if the following conditions are met:

[0318] 1) The TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes the aforementioned dual TCI state, or the TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes a TCI state that is quasi-co-located with the aforementioned dual TCI state.

[0319] 2) During the UE's activated TCI state switching, all RSs in the dual TCI state and the two QCL chains corresponding to the dual TCI state are detectable, or, alternatively, during the TCI state switching, all RSs in the dual TCI state quasi-co-located TCI state and the two QCL chains corresponding to the dual TCI state quasi-co-located TCI state are detectable. Here, the dual TCI state quasi-co-located TCI state can be understood as: a TCI state of a beam that is quasi-known to the beam indicated by the dual TCI state.

[0320] 3) The signal-to-noise ratio (SNR) in the dual TCI state must be ≥ -3dB, or the SNR in the quasi-co-located TCI state must be ≥ -3dB. 4) RS measurement results in the dual TCI state or the quasi-co-located TCI state must be reported within the most recent specified time period. This specified time period may include, but is not limited to, values ​​such as 1280ms, 580ms, or 360ms from the current time.

[0321] In the mDCI scenario, because multiple nodes perform downlink transmission scheduling for mDCI, this known condition cannot be directly applied to the known condition in the sDCI scenario. In the mDCI scenario, each MAC CE activation command contains only one TCI state. If each MAC CE is assumed to be independent, the known condition will be determined solely by the single TCI state in that MAC CE.

[0322] The currently known condition is defined based on two TCI states. This means that the known condition cannot be determined based on a single TCI state. If one target TCI is in GBBR, there is no guarantee that the TCI in the other MAC CE is also in GBBR. Thus, the currently known condition, which depends on two TCI states, and the known condition, which depends on the single TCI state indicated by the corresponding MAC CE, are conflicting. In other words, if the currently known condition is reused, the two MAC CEs are not independent.

[0323] Assume that the two TCI states in the two MAC CEs are:

[0324] Case 1: TCI state 1 indicated by MAC CE1 is in the GBBR state, and TCI state 2 indicated by MAC CE2 is not in the GBBR state.

[0325] Case 2: TCI state 1 indicated by MAC CE1 is in the GBBR state, and TCI state 2 indicated by MAC CE2 is in the GBBR state.

[0326] The known state of TCI state 1 cannot be determined solely by MAC CE 1. Therefore, in case 1, the TCI state is unknown, while in case 2, the TCI state is known. Therefore, the dual TCI state known condition based on sDCI cannot be directly applied to determining whether the dual TCI state is known in the mDCI scenario. The following discusses the known condition for activating the dual TCI state using two MAC CEs in the sDCI and mDCI scenarios, respectively.

[0327] Solution 1: The known conditions for both sDCI and mDCI scenarios are as follows:

[0328] For sDCI scenarios, dual TCI states can be included in a single MAC CE activation command. For mDCI, however, a single MAC CE contains only one TCI state. Therefore, when dual TCI states are involved, two MAC CEs must be considered. The UE receives both MAC CEs and then determines whether the known conditions are met.

[0329] The dual TCI status is known (i.e., meets the known conditions) if the following conditions are met:

[0330] 1) The TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes the aforementioned dual TCI state, or the TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes a TCI state that is quasi-co-located with the aforementioned dual TCI state.

[0331] 2) During the UE's activated TCI state switching, all RSs in the dual TCI state and the two QCL chains corresponding to the dual TCI state are detectable, or, alternatively, during the TCI state switching, all RSs in the dual TCI state quasi-co-located TCI state and the two QCL chains corresponding to the dual TCI state quasi-co-located TCI state are detectable. Here, the dual TCI state quasi-co-located TCI state can be understood as: a TCI state of a beam that is quasi-known to the beam indicated by the dual TCI state.

[0332] 3) The signal-to-noise ratio (SNR) in the dual TCI state must be ≥ -3dB, or the SNR in the quasi-co-located TCI state must be ≥ -3dB. 4) RS measurement results in the dual TCI state or the quasi-co-located TCI state must be reported within the most recent specified time period. This specified time period may include, but is not limited to, values ​​such as 1280ms, 580ms, or 360ms from the current time.

[0333] Solution 2: Determine the known conditions for the mDCI scenario and the dual TCI state in the mDCI scenario respectively.

[0334] For the sDCI scenario, the known conditions for activating the dual TCI state are as follows:

[0335] 1) The TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes the aforementioned dual TCI state, or the TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes a TCI state that is quasi-co-located with the aforementioned dual TCI state.

[0336] 2) During the UE's activated TCI state switching, all RSs in the dual TCI state and the two QCL chains corresponding to the dual TCI state are detectable, or, alternatively, during the TCI state switching, all RSs in the dual TCI state quasi-co-located TCI state and the two QCL chains corresponding to the dual TCI state quasi-co-located TCI state are detectable. Here, the dual TCI state quasi-co-located TCI state can be understood as: a TCI state of a beam that is quasi-known to the beam indicated by the dual TCI state.

[0337] 3) The signal-to-noise ratio (SNR) in the dual TCI state must be ≥ -3dB, or the SNR in the quasi-co-located TCI state must be ≥ -3dB. 4) RS measurement results in the dual TCI state or the quasi-co-located TCI state must be reported within the most recent specified time period. This specified time period may include, but is not limited to, values ​​such as 1280ms, 580ms, or 360ms from the current time.

[0338] For the mDCI scenario, the known conditions for activating the dual TCI state are as follows:

[0339] There are two optional methods for the condition that the mDCI is known in the dual TCI state, namely method A and method B.

[0340] Method A: Two TCI states in two MAC CEs together define known conditions:

[0341] The activation of the dual TCI state in the mDCI scenario is indicated by different MAC CEs if the following conditions are met:

[0342] 1) The TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes the aforementioned dual TCI state, or the TCI state corresponding to the beam pair or RS pair reported by the UE to the base station includes a TCI state that is quasi-co-located with the aforementioned dual TCI state.

[0343] 2) During the UE's activated TCI state switching, all RSs in the dual TCI state and the two QCL chains corresponding to the dual TCI state are detectable, or, alternatively, during the TCI state switching, all RSs in the dual TCI state quasi-co-located TCI state and the two QCL chains corresponding to the dual TCI state quasi-co-located TCI state are detectable. Here, the dual TCI state quasi-co-located TCI state can be understood as: a TCI state of a beam that is quasi-known to the beam indicated by the dual TCI state.

[0344] 3) The signal-to-noise ratio (SNR) in the dual TCI state must be ≥ -3dB, or the SNR in the quasi-co-located TCI state must be ≥ -3dB. 4) RS measurement results in the dual TCI state or the quasi-co-located TCI state must be reported within the most recent specified time period. This specified time period may include, but is not limited to, values ​​such as 1280ms, 580ms, or 360ms from the current time.

[0345] Method B: Define the known conditions for each TCI state separately:

[0346] For the mDCI scenario, each TRP sends a MAC CE to the UE. In this way, the UE receives a MAC CE sent by each TRP, where one MAC CE indicates a TCI state. The TCI state is known under the following conditions:

[0347] 1) The beam measured since the last L1-RSRP measurement result reported by the UE to the network device is the same as or quasi-co-located with the beam indicated by the activated TCI state indicated by the MAC CE. 2) The activated TCI state switching command received by the UE is received within a predetermined duration after the last L1-RSRP measurement result reported by the UE. The activated TCI state switching command is used to instruct the UE to switch the activated TCI state to the activated TCI state indicated by the MAC CE or to a quasi-co-located TCI state of the activated TCI state indicated by the MAC CE. The predetermined duration may include, but is not limited to, 1280ms, 640ms, 320ms, etc.

[0348] 3) Before executing a downlink TCI state switch command, the UE sends at least a group-based L1-RSRP measurement report, with the target TCI state included in the group-based report. The L1-RSRP measurement report carries the L1-RSRP measurement results. The group can be a beam group or a TCI state group. A beam group can include at least two beams. A TCI state group can include at least two TCI states.

[0349] 4) During the UE's activated TCI state switching, the MAC CE activated downlink TCI state or the quasi-co-located TCI state of the MAC CE activated downlink TCI state remains in a detectable state.

[0350] 5) During the UE's activated TCI state transition, the SSB associated with the MAC CE activated downlink TCI state or the quasi-co-located TCI state of the MAC CE activated downlink TCI state remains detectable. This SSB can be associated with either the serving cell PCI or other serving cell identifiers.

[0351] 6) Downlink TCI state signal-to-noise ratio ≥ -3dB.

[0352] 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.

[0353] 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.

[0354] The embodiments of the present disclosure also 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 or a core network device) in any of the above methods.

[0355] It should be understood that the division of the various units or modules in the above devices 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 devices, 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.

[0356] In the embodiments of the present disclosure, a processor is a circuit with signal processing capabilities. In one implementation, the processor may 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 a 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 file to implement 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 (DLP), or a similar hardware circuit. Unit, DPU) etc.

[0357] As shown in FIG4A , an embodiment of the present disclosure provides a terminal, wherein the terminal includes:

[0358] The receiving module 4101 is configured to receive at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission;

[0359] Processing module 4102 is configured to determine whether known conditions are met based on N first TCI states; and determine whether N second TCI states of the UE are known based on whether the known conditions are met; the N second TCI states are used to indicate second beams received by N UEs in downlink; N is a positive integer greater than or equal to 2. In some embodiments, this processing module may be used by the UE to perform information processing-related steps in any of the TCI state processing methods.

[0360] In some embodiments, the UE may further include: a sending module.

[0361] In some embodiments, the sending module and / or the receiving module may correspond to a network interface and / or a transceiver antenna of the UE.

[0362] In some embodiments, the sending module may be used by the UE to execute steps related to information sending in any TCI status processing method.

[0363] In some embodiments, the receiving module may be used for the UE to execute steps related to information sending in any TCI status processing method.

[0364] In some embodiments, the known condition includes at least one of: a first condition and a second condition;

[0365] A first condition is associated with the N second TCI states and is used by the UE to determine whether the N second TCI states are known;

[0366] A second condition is associated with a second TCI state and is used by the UE to determine whether the second TCI state is known.

[0367] In some embodiments, the processing module is configured to perform at least one of the following: satisfying a first condition, determining that N second TCI states of the UE are known;

[0368] If the first condition is not met, it is determined that the states of the N second TCIs are unknown;

[0369] If the second condition is met, it is determined that the second TCI state corresponding to the second condition is known;

[0370] The second condition is not met, and it is determined that the second TCI state corresponding to the second condition is unknown.

[0371] In some embodiments, the first condition includes at least one of the following:

[0372] There are at least N beams indicated by the third TCI state that are quasi-co-located with the N beams indicated by the first TCI state; the N third TCI states are the TCI states last reported by the UE to the network device;

[0373] At least N reference signals RS associated with the third TCI state can be detected during the active TCI state switching of the UE;

[0374] The beam measurement quality of at least N third TCI states is greater than or equal to a first quality threshold;

[0375] The time difference between at least N RS measurement information in the third TCI state and the current moment is less than the first time threshold;

[0376] In which, when the first condition is met, the second TCI state belongs to at least N third TCI states.

[0377] In some embodiments, the scenarios in which the first condition is applied include at least one of the following:

[0378] A single node schedules N downlink transmissions and one first instruction activates N first TCI states;

[0379] A single node schedules N downlink transmissions and N first instructions respectively activate N first TCI states;

[0380] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0381] In some embodiments, the second condition includes at least one of the following:

[0382] At least during a switching period in which the UE performs an activated TCI state, there is at least one beam indicated by the fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0383] At least one fourth TCI state is the TCI state last reported by the UE to the network device;

[0384] The time difference between the RS measurement information of at least one fourth TCI state and the current moment is less than the second time threshold;

[0385] The UE sends a beam measurement result to the network device based on a group; a group includes at least one fourth TCI state or at least one beam; the beam measurement quality of at least one fourth TCI state is higher than the second quality threshold;

[0386] A beam indicated by at least one fourth TCI state during an active TCI state switch of the UE is capable of being detected;

[0387] At least one reference signal RS associated with the fourth TCI state can be detected during a period in which the active TCI state of the UE is switched to the second TCI state;

[0388] Wherein, when the second condition is met, the second TCI state belongs to at least one fourth TCI state.

[0389] In some embodiments, scenarios in which the second condition is applied include:

[0390] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate N first TCI states.

[0391] As shown in FIG4B , an embodiment of the present disclosure provides a network device, including:

[0392] The sending module 4201 is configured to send at least one first instruction to a user equipment UE; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams sent downlink; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions, and the N second TCI states are used to indicate N second beams received downlink by the UE, where N is a positive integer greater than or equal to 2.

[0393] In some embodiments, the known condition includes a first condition and / or a second condition.

[0394] In some embodiments, the first condition includes at least one of the following:

[0395] There are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states; the N third TCI states are the TCI states last reported by the UE to the network device;

[0396] The at least N reference signals RS associated with the third TCI state can be detected during the activated TCI state switching of the UE;

[0397] The beam measurement qualities of the at least N third TCI states are greater than or equal to a first quality threshold;

[0398] The time difference between the RS measurement information of the at least N third TCI states and the current moment is less than the first time threshold;

[0399] Among them, when the first condition is met, the second TCI state belongs to the at least N third TCI states.

[0400] In some embodiments, the scenarios in which the first condition is applied include at least one of the following:

[0401] A single node schedules N downlink transmissions and a first instruction activates the N first TCI states;

[0402] A single node schedules N downlink transmissions and N first instructions respectively activate the N first TCI states;

[0403] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0404] In some embodiments, the second condition includes at least one of the following:

[0405] At least during a period in which the UE switches to an activated TCI state, there is at least one beam indicated by a fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state;

[0406] The at least one fourth TCI state is the TCI state last reported by the UE to the network device;

[0407] The time difference between the RS measurement information of the at least one fourth TCI state and the current moment is less than the second time threshold;

[0408] The UE sends a beam measurement result to the network device based on a group; one of the groups includes the at least one fourth TCI state or the at least one beam; and the beam measurement quality of the at least one fourth TCI state is higher than a second quality threshold;

[0409] A beam indicated by at least one fourth TCI state during an activated TCI state switch of the UE is detectable;

[0410] The reference signal RS associated with the at least one fourth TCI state can be detected during a period in which the activated TCI state of the UE is switched to the second TCI state;

[0411] In which, when the second condition is met, the second TCI state belongs to the at least one fourth TCI state.

[0412] In some embodiments, scenarios in which the second condition is applied include:

[0413] N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

[0414] An embodiment of the present disclosure also provides a communication device, which may include: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the TCI state processing method that can be implemented in any of the aforementioned embodiments.

[0415] The embodiment of the present disclosure also provides a communication system, which includes a network device and a UE. The UE can execute any of the aforementioned TCI state processing methods executed by the UE. The network device may include one or more TRPs. For example, in the sDCI scenario, the communication system may include at least one TRP sending a first instruction. In the mDCI scenario, multiple TRPs in the communication system send the first instruction respectively. At the same time, the UE can simultaneously communicate with multiple TRPs based on beams with different TCI state indications.

[0416] 5A and / or 5B , the communication device 8100 further includes one or more memories 8102 for storing instructions. Alternatively, all or part of the memories 8102 may be located outside the communication device 8100.

[0417] The communication device may be the aforementioned terminal and network device. In some embodiments, the network device may be a master node and / or an auxiliary node.

[0418] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the communication steps such as sending and receiving in the above method are performed by the transceiver 8103, and the other steps are performed by the processor 8101.

[0419] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0420] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0421] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited to FIG. 5A. 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.

[0422] FIG5B is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG5B , but the present disclosure is not limited thereto.

[0423] The chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions to enable the chip 8200 to execute any of the above TCI state processing methods.

[0424] In some embodiments, chip 8200 further includes one or more interface circuits 8202, which are connected to memory 8203. Interface circuit 8202 can be used to receive signals from memory 8203 or other devices, and can be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send the instructions to processor 8201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0425] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0426] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0427] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above TCI status processing methods. Optionally, the program product is a computer program product.

[0428] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above TCI status processing methods.

[0429] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the present invention being indicated by the following claims.

[0430] It should be understood that the embodiments of the present disclosure are not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the appended claims.

Claims

1. A method for processing a transmission configuration indication (TCI) state, wherein: The method is performed by a user equipment UE, and includes: Receiving at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; Determining whether a known condition is met according to the N first TCI states; Based on whether the known conditions are met, determine whether the N second TCI states of the UE are known; the N second TCI states are used to indicate the N second beams received by the UE downlink; and N is a positive integer greater than or equal to 2.

2. The method according to claim 1, wherein The known conditions include at least one of the following: a first condition and a second condition; a first condition associated with the N second TCI states and used by the UE to determine whether the N second TCI states are known; A second condition is associated with a second TCI state and is used by the UE to determine whether a second TCI state is known.

3. The method according to claim 2, wherein: The determining whether the N second TCI states of the UE are known according to whether a known condition is met includes: If the first condition is met, determining that the N second TCI states of the UE are known; If the first condition is not met, determining that the states of the N second TCIs are unknown; If the second condition is met, determining that a second TCI state corresponding to the second condition is known; If the second condition is not met, it is determined that the second TCI state corresponding to the second condition is unknown.

4. The method according to claim 2 or 3, wherein: The first condition includes at least one of the following: There are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states; the N third TCI states are the TCI states last reported by the UE to the network device; The at least N reference signals RS associated with the third TCI state can be detected during the activated TCI state switching of the UE; The beam measurement qualities of the at least N third TCI states are greater than or equal to a first quality threshold; The time difference between the RS measurement information of the at least N third TCI states and the current moment is less than the first time threshold; Among them, when the first condition is met, the second TCI state belongs to the at least N third TCI states.

5. The method according to any one of claims 2 to 4, wherein: The scenarios in which the first condition is applied include at least one of the following: A single node schedules N downlink transmissions and a first instruction activates the N first TCI states; A single node schedules N downlink transmissions and N first instructions respectively activate the N first TCI states; N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

6. The method according to any one of claims 2 to 4, wherein: The second condition includes at least one of the following: At least during a period in which the UE switches to an activated TCI state, there is at least one beam indicated by a fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state; The at least one fourth TCI state is the TCI state last reported by the UE to the network device; The time difference between the RS measurement information of the at least one fourth TCI state and the current moment is less than the second time threshold; The UE sends a beam measurement result to the network device based on a group; one of the groups includes the at least one fourth TCI state or the at least one beam; and the beam measurement quality of the at least one fourth TCI state is higher than a second quality threshold; A beam indicated by at least one fourth TCI state during an activated TCI state switch of the UE is capable of being detected; The reference signal RS associated with the at least one fourth TCI state can be detected during a period in which the activated TCI state of the UE is switched to the second TCI state; Wherein, when the second condition is met, the second TCI state belongs to the at least one fourth TCI state.

7. The method according to claim 2, 3 or 6, wherein: The scenarios in which the second condition applies include: N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

8. A method for processing a transmission configuration indication (TCI) state, wherein: Executed by a network device, the method includes: At least one first instruction is sent to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams transmitted in downlink; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions, and the N second TCI states are used to indicate N second beams received in downlink by the UE, where N is a positive integer greater than or equal to 2.

9. The method according to claim 8, wherein The known conditions include at least one of the following: a first condition and a second condition; a first condition associated with the N second TCI states and used by the UE to determine whether the N second TCI states are known; A second condition is associated with a second TCI state and is used by the UE to determine whether a second TCI state is known.

10. The method according to claim 8 or 9, wherein: The first condition includes at least one of the following: There are at least N beams indicated by the third TCI state that are quasi-co-located with the beams indicated by the N first TCI states; the N third TCI states are the TCI states last reported by the UE to the network device; The at least N reference signals RS associated with the third TCI state can be detected during the activated TCI state switching of the UE; The beam measurement qualities of the at least N third TCI states are greater than or equal to a first quality threshold; The time difference between the RS measurement information of the at least N third TCI states and the current moment is less than the first time threshold; Among them, when the first condition is met, the second TCI state belongs to the at least N third TCI states.

11. The method according to claim 9 or 10, wherein: The scenarios in which the first condition is applied include at least one of the following: A single node schedules N downlink transmissions and a first instruction activates the N first TCI states; A single node schedules N downlink transmissions and N first instructions respectively activate the N first TCI states; N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

12. The method according to claim 9, wherein The second condition includes at least one of the following: At least during a period in which the UE switches to an activated TCI state, there is at least one beam indicated by a fourth TCI state that is quasi-co-located with a beam indicated by the first TCI state; The at least one fourth TCI state is the TCI state last reported by the UE to the network device; The time difference between the RS measurement information of the at least one fourth TCI state and the current moment is less than the second time threshold; The UE sends a beam measurement result to the network device based on a group; one of the groups includes the at least one fourth TCI state or the at least one beam; and the beam measurement quality of the at least one fourth TCI state is higher than a second quality threshold; A beam indicated by at least one fourth TCI state during an activated TCI state switch of the UE is detectable; The reference signal RS associated with the at least one fourth TCI state can be detected during a period in which the activated TCI state of the UE is switched to the second TCI state; In which, when the second condition is met, the second TCI state belongs to the at least one fourth TCI state.

13. The method according to claim 9 or 12, wherein: The scenarios in which the second condition applies include: N nodes respectively schedule N downlink transmissions and N first instructions respectively activate the N first TCI states.

14. A user equipment UE, wherein: The UE includes: A receiving module configured to receive at least one first instruction sent by a network device; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; The processing module is configured to determine whether a known condition is met based on the N first TCI states; determine whether the N second TCI states of the UE are known based on whether the known condition is met; the N second TCI states are used to indicate the second beams received by the N UE downlink; and N is a positive integer greater than or equal to 2.

15. A network device, wherein: The network equipment includes: A sending module is configured to send at least one first instruction to a user equipment (UE); the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; the N first TCI states are used by the UE to determine whether N second TCI states are known based on known conditions, and the N second TCI states are used to indicate N second beams for downlink reception by the UE, where N is a positive integer greater than or equal to 2.

16. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions to enable the communication device to execute the TCI status processing method according to any one of claims 1 to 7 or 8 to 13.

17. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the TCI status processing method according to any one of claims 1 to 7 or 8 to 13.

18. A program product, wherein When the program product is executed by a communication device, the communication device executes the TCI status processing method described in any one of claims 1 to 7 or 8 to 13.

19. A communication system, wherein: The communication system includes: a network device and a user equipment UE; The network device is configured to send at least one first instruction to the UE; the at least one first instruction is used to activate N first TCI states; the N first TCI states indicate N first beams for downlink transmission; The UE is configured to determine whether a known condition is met according to the N first TCI states; Determine whether the N second TCI states of the UE are known according to whether the known condition is met; the N second TCI The state is used to indicate the second beam received by N UEs in downlink; N is a positive integer greater than or equal to 2.

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