DEFAULT BEAM DETERMINATION METHOD, APPARATUS, USER EQUIPMENT, AND NETWORK DEVICE

Abstract

The present application provides a method, an apparatus, a communication device and a storage medium for determining a default beam, and belongs to the field of wireless communication technology. The method includes a step of determining a default beam corresponding to a first CORESET (Control Resource Set) based on a specified rule, where the maximum number of TCI (Transmission Configuration Indication) states supported by the first CORESET is equal to or greater than 2. Thus, by predefining a method of determining a default beam and a specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

Description

[Technical field]

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, an apparatus, a user equipment, a network equipment, and a storage medium for determining a default beam. [Background technology]

[0002] In a New Radio (NR) system, since the attenuation of a high frequency channel is fast, beam-based transmission and reception can be used to ensure coverage. When a network device has multiple TRPs (Transmission and Reception Points), the network device can provide services for a user equipment using the multiple TRPs, for example, transmit a PDCCH (Physical Downlink Control Channel) for the user equipment using the multiple TRPs. When the network device transmits a PDCCH to a user equipment using one TRP, the network device can configure one CORESET (Control Resource Set) for the user equipment and configure one TCI (Transmission Configuration Indication) state corresponding to the CORESET, and when the network device transmits a PDCCH for a user equipment using multiple TRPs, the network device can configure multiple TCI states for the CORESET, each of which indicates a beam corresponding to a different TRP.

[0003] In the related art, when the time interval between the PDCCH and the PDSCH (Physical Downlink Shared Channel) scheduled by the DCI (Downlink Control Information) signaling carried by the PDCCH is small and the user equipment does not have time to acquire beam indication information in the DCI, or when the DCI does not carry a TCI state corresponding to the receiving beam for indicating the PDSCH, the user equipment needs to receive the PDSCH of the DCI schedule using a default beam. However, in the conventional art, all of the methods for determining the default beam are defined for the case where the CORESET transmitting the DCI corresponds to one TCI state, and when the CORESET transmitting the DCI corresponds to multiple TCI states, it is not possible to determine the default beam corresponding to the CORESET. Summary of the Invention [Problem to be solved by the invention]

[0004] The default beam determination method, device, user equipment, network equipment and storage medium provided by the present application are used to solve a problem in the related art that when a CORESET of a transmitted DCI corresponds to multiple TCI states, a default beam corresponding to the CORESET cannot be determined. [Means for solving the problem]

[0005] A method for determining a default beam applied to a user equipment provided by an embodiment of one aspect of the present application includes a step of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0006] A method for determining a default beam applied to a network equipment provided by an embodiment of another aspect of the present application includes a step of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0007] Provided by an embodiment of a further aspect of the present application, an apparatus for determining a default beam applied to a user equipment includes a first determination module configured to determine a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0008] Provided by an embodiment of another aspect of the present application, a default beam determination device applied to a network equipment includes a second determination module configured to determine a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0009] A user equipment provided by an embodiment of another aspect of the present application includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory, the processor being configured to control transmission and reception of radio signals by the transceiver by executing computer-executable instructions in the memory, and to perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0010] A network device provided by an embodiment of another aspect of the present application includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory, the processor being configured to control transmission and reception of radio signals by the transceiver by executing computer-executable instructions in the memory, and to perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0011] A default beam determination system provided by an embodiment of a further aspect of the present application includes a user equipment and a network equipment, wherein the user equipment includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory, the processor being configured to control transmission and reception of radio signals by the transceiver by executing computer-executable instructions in the memory, and to perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0012] Here, the network equipment includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory, and the processor is configured to control the transmission and reception of radio signals by the transceiver by executing computer-executable instructions in the memory, and to perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0013] A computer storage medium provided by an embodiment of another aspect of the present application stores computer-executable instructions, which, when executed by a processor, can realize the above-mentioned method of determining a default beam.

[0014] According to another embodiment of the present application, there is provided a computer program product including a computer program, which, when executed by a processor, implements the above-mentioned method for determining a default beam.

[0015] According to another embodiment of the present application, there is provided a computer program which, when executed by a processor, implements the above-mentioned method for determining a default beam. Effect of the Invention

[0016] The default beam determination method, device, user equipment, network equipment, system, computer-readable storage medium, computer program product, and computer program provided by the embodiments of the present application determine a default beam corresponding to a first CORESET based on a specified rule, and the maximum number of TCI states supported by the first CORESET is equal to or greater than 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0017] Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief description of the drawings]

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easier to understand from the following detailed description of the embodiments taken in conjunction with the drawings. [Figure 1] 1 is a flowchart of a method for determining a default beam provided by an embodiment of the present application. [Diagram 2]11 is a flowchart of another default beam determination method provided by an embodiment of the present application. [Diagram 3] 13 is a flowchart of a further default beam determination method provided by an embodiment of the present application. [Figure 4] 11 is a flowchart of another default beam determination method provided by an embodiment of the present application. [Diagram 5] 11 is a flowchart of another default beam determination method provided by an embodiment of the present application. [Figure 6] 11 is a flowchart of another default beam determination method provided by an embodiment of the present application. [Figure 7] FIG. 2 is a schematic configuration diagram of a default beam determining device provided by an embodiment of the present application. [Figure 8] FIG. 11 is a schematic configuration diagram of another default beam determining device provided by an embodiment of the present application. [Figure 9] FIG. 2 is a block diagram of a user equipment provided by an embodiment of the present application. [Figure 10] 1 is a schematic configuration diagram of a network device provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Exemplary embodiments will now be described, examples of which are illustrated in the drawings. The following description refers to the drawings, in which the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the embodiments of the present application, as detailed in the appended claims.

[0020] The terms used in the examples of this application are intended only to describe particular embodiments and are not intended to limit the embodiments of this application. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "the" used in the examples of this application and the appended claims include the plural forms. In addition, the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although various information may be described in the embodiments of the present application with terms such as first, second, third, etc., these information should not be limited to these terms. These terms are used to distinguish the same type of information from each other. For example, the first information may also be called the second information, and similarly, the second information may also be called the first information, without departing from the scope of the embodiments of the present application. Depending on the context, the terms "if" and "if" used herein may be interpreted as "when" or "in the case of" or "in response to a decision."

[0022] The following is a detailed description of the embodiments of the present application, examples of which are shown in the drawings, in which the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the drawings are illustrative and are for the purpose of explaining the present application, and should not be construed as limiting the present application.

[0023] An embodiment of the present application provides a method for determining a default beam to address a problem in the related art in that when a CORESET transmitting a DCI corresponds to multiple TCI states, a default beam corresponding to the CORESET cannot be determined.

[0024] The default beam determination method provided by the embodiment of the present application determines a default beam corresponding to a first CORESET based on a specified rule, where the maximum number of TCI states supported by the first CORESET is greater than or equal to 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0025] Hereinafter, the method, device, user equipment, network equipment, and storage medium for determining a default beam provided by the present application will be described in detail with reference to the drawings.

[0026] FIG. 1 is a flowchart of a method for determining a default beam applied to a user equipment provided by an embodiment of the present application.

[0027] As shown in FIG. 1, the method for determining a default beam includes the following step 101.

[0028] Step 101, determining a default beam corresponding to a first CORESET according to a specified rule, where a maximum number of TCI states supported by the first CORESET is greater than or equal to two.

[0029] It should be noted that the method for determining a default beam in the embodiment of the present application can be applied to any user equipment. The user equipment can refer to a device that provides voice and / or data connectivity to a user. The user equipment can communicate with one or more core networks via a RAN (Radio Access Network), and the terminal can be an Internet of Things terminal, such as a sensor device, a mobile phone (also called a "cellular" phone), and a computer having an Internet of Things terminal, such as a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device. For example, the user equipment can be a STA (Station), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, or a user agent. Or, the user equipment can be an unmanned aerial vehicle device. Alternatively, the user equipment may be an in-vehicle device, such as a car computer with wireless communication capabilities, or a wireless terminal connected to the car computer, or the user equipment may be a roadside device, such as a street lamp, a traffic light, or other roadside device with wireless communication capabilities.

[0030] In addition, the application scene of the method for determining a default beam in the embodiment of the present application may be a scene for determining a default beam for a CORESET in which multiple TCI states can be set. A TCI state is a beam, and one TCI state can correspond to one beam.

[0031] The first CORESET may refer to a CORESET that can support multiple TCI states. Note that, although the first CORESET can support multiple TCI states, one TCI state may be set for it at a specific time according to actual service needs, and the embodiment of the present application is not limited thereto.

[0032] As an example, the first CORESET may be a CORESET that can support two TCI states. Note that the following content of this application will be specifically described as an example in which the first CORESET is a CORESET that can support two TCI states.

[0033] In one possible implementation form, the MAC CE (Medium Access Control Control Element) signaling can be used as beam instruction signaling for the CORESET to determine a default beam corresponding to the first CORESET. That is, in one possible implementation form of the embodiment of the present application, step 101 can include receiving a MAC CE for activating a first beam corresponding to the first CORESET and determining the first beam as a default beam corresponding to the first CORESET.

[0034] In an embodiment of the present application, the network equipment determines the number of beams to be activated for the first CORESET according to the number of TRPs contained therein and the current service needs, and activates the corresponding number of first beams through the MAC CE, so that the user equipment can determine the first beam corresponding to the first CORESET to be activated based on the received MAC CE, and determine the first beam as the default beam corresponding to the first CORESET.

[0035] For example, when the network device includes two TRPs, the network device can determine the number of first beams to be 1 or 2, so that the network device activates one first beam for the first CORESET or activates two first beams for the first CORESET by sending a MAC CE to the user equipment. Note that when two first beams are activated for the first CORESET, each first beam corresponds to a different TRP, where the TRPs are distinguished by at least one of a TRP identifier, a CORESETPoolIndex (ControlResourceSetPoolIndex, control resource set pool index), a reference signal resource identifier, a reference signal resource set identifier, and a panel ID.

[0036] In addition, when the user equipment determines a default beam corresponding to the first CORESET based on the first beam, the user equipment may determine the corresponding first beam as the default beam corresponding to the first CORESET based on the number of first beams and the number of preset default beams. Selectively, the following three cases can be divided:

[0037] [Case 1] The number of first beams is one, and the one first beam is determined as a default beam corresponding to the first CORESET.

[0038] As one possible implementation form, in response to the number of first beams being one, the user equipment may directly determine the one first beam that the MAC CE has activated for the first CORESET as the default beam corresponding to the first CORESET.

[0039] [Case 2] The number of first beams is two, and the two first beams are determined as default beams corresponding to the first CORESET.

[0040] As one possible implementation form, in response to the number of first beams being two and the number of default beams pre-agreed upon between the network equipment and the user equipment being two, or no pre-agreed upon number of default beams, the user equipment can directly determine the two first beams that the MAC CE has activated for the first CORESET as default beams corresponding to the first CORESET.

[0041] [Case 3] The number of first beams is two, and one of the two first beams corresponding to a specified TRP is determined as a default beam corresponding to the first CORESET.

[0042] In one possible implementation, the MAC CE may include multiple bits, each of which is used to activate the TCI state of a different TRP, and the user equipment may know which TRP's TCI state is used to activate each bit of the MAC CE. Therefore, since the number of first beams is two, and the network equipment and the user equipment have pre-agreed on the designated TRP, the user equipment may determine the first beam corresponding to the designated TRP among the two first beams based on the corresponding relationship between each bit of the MAC CE and the TRP, and determine the first beam corresponding to the designated TRP as the default beam corresponding to the first CORESET.

[0043] For example, if one of the two first beams corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) of the two TRPs and the other first beam corresponds to TRP#1 (or CORESETPoolIndex#1) of the two TRPs, the designated TRP may be TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) or the designated TRP may be TRP#1 (or the TRP corresponding to CORESETPoolIndex#1).

[0044] As another possible implementation form, the DCI can be a beam indication signaling of the CORESET, so that the DCI can determine a default beam corresponding to the first CORESET. That is, in one possible implementation form of the embodiment of the present application, step 101 can include receiving a first DCI for indicating a second beam corresponding to the first CORESET, and determining the second beam as a default beam corresponding to the first CORESET.

[0045] In an embodiment of the present application, the network equipment can further determine the number of beams to be activated for the first CORESET according to the number of TRPs contained therein and current service needs, and set a corresponding number of second beams for the first CORESET by sending DCI to the user equipment, so that the user equipment can determine the second beam based on the received DCI and determine the second beam as a default beam corresponding to the CORESET.

[0046] In addition, the TCI state domain for indicating the beam in the DCI is a number of bits (e.g., 3 bits), and the number of bits can be represented as a number of different codepoints at different times, e.g., "000", "001", "010", "011", "100", "101", "110", and "111". And each codepoint can correspond to a set of second beams, where each second beam can include one second beam or two second beams.

[0047] As an example, the correspondence between the codepoint and each set of second beams can be indicated by the MAC CE, that is, multiple second beams can be activated by the MAC CE, and each bit in the MAC CE has a one-to-one correspondence with two second beams corresponding to each codepoint, respectively, but there may be only one second beam corresponding to each codepoint, and it is indicated by the bit information in the MAC CE, and when two second beams corresponding to each codepoint both exist, the two second beams correspond to different TRPs.

[0048] In addition, when the user equipment determines a default beam corresponding to the first CORESET based on the second beam, the user equipment may determine the corresponding second beam as the default beam corresponding to the first CORESET based on the number of second beams corresponding to each codepoint in the DCI and the number of default beams set in advance. The following four cases can be selected:

[0049] [Case 1] At least one of the second beams is determined as a default beam corresponding to the first CORESET.

[0050] As one possible implementation form, the number of second beams is one, i.e., in response to the DCI indicating that the beam corresponding to the first CORESET is one beam, the user equipment can directly determine the one second beam indicated by the DCI as the default beam corresponding to the first CORESET.

[0051] As another possible implementation form, the number of second beams is two, i.e., in response to the DCI indicating that the number of beams corresponding to the first CORESET is two beams and the number of default beams corresponding to the first CORESET is one, the user equipment can determine any one of the two second beams as the default beam corresponding to the first CORESET.

[0052] As a further possible implementation form, the number of second beams is two, i.e., in response to the DCI indicating that the beams corresponding to the first CORESET are two beams and indicating that the default beams corresponding to the first CORESET are two, the user equipment can determine both of the two second beams indicated by the DCI as default beams corresponding to the first CORESET.

[0053] [Case 2] The second beam corresponding to the codepoint used to indicate one of the second beams in the first DCI and having the smallest possible value is determined as the default beam corresponding to the first CORESET.

[0054] In one possible implementation, each codepoint in the DCI may correspond to a set of second beams, and the user equipment may determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that there is one default beam corresponding to the first CORESET, the user equipment may first select a codepoint corresponding to one second beam in the DCI, and determine one second beam corresponding to the selected codepoint with the smallest possible value as a default beam corresponding to the first CORESET.

[0055] For example, each codepoint in the DCI can be represented by three bits, and possible values ​​of the codepoint can include 000, 001, 010, 011, 100, 101, 110, 111, etc., and the above possible values ​​are arranged in ascending order. For example, the codepoint "011" in the DCI corresponds to one second beam, and the codepoint "000" also indicates one second beam, and in this case, the one second beam indicated by the codepoint "000" can be determined as the default beam corresponding to the first CORESET.

[0056] [Case 3] The second beam that is used to indicate two second beams among the first DCI and corresponds to a codepoint with the smallest possible value is determined as the default beam corresponding to the first CORESET.

[0057] In one possible implementation, each codepoint in the DCI can correspond to a set of second beams, and the user equipment can determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that there are two default beams corresponding to the first CORESET, the user equipment first selects codepoints corresponding to the two second beams in the DCI, and determines the two second beams corresponding to the selected codepoint with the smallest possible value as default beams corresponding to the first CORESET.

[0058] For example, if the codepoint "011" in the DCI corresponds to two second beams and the codepoint "000" also indicates two second beams, the two second beams indicated by the codepoint "000" can be determined as default beams corresponding to the first CORESET.

[0059] [Case 4] Among the two second beams used to indicate two second beams in the first DCI and corresponding to the codepoint with the smallest possible value, one second beam corresponding to the specified TRP is determined as the default beam corresponding to the first CORESET.

[0060] In one possible implementation, each codepoint in the DCI can correspond to a set of second beams, and the user equipment can determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that there are two beams corresponding to the first CORESET and indicating that there is one default beam corresponding to the first CORESET, and the network equipment and the user equipment pre-negotiate a designated TRP, the user equipment can first select a codepoint corresponding to the two second beams in the DCI, and based on the correspondence between each bit in the MAC CE and the TRP, determine a second beam corresponding to the designated TRP among the two second beams corresponding to the selected codepoint with the smallest possible value, and determine the second beam corresponding to the designated TRP as a default beam corresponding to the first CORESET.

[0061] For example, codepoint "011" in DCI corresponds to two second beams, codepoint "000" also indicates two second beams, and the two second beams indicated by "000" are TCI#0 and TCI#1, respectively, where TCI#0 corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), and TCI#1 corresponds to TRP#1 (or the TRP corresponding to CORESETPoolIndex#1). If the specified TRP is TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), TCI#0 is determined as the default beam corresponding to the first CORESET, and if the specified TRP is TRP#1 (or the TRP corresponding to CORESETPoolIndex#1), ​​TCI#1 is determined as the default beam corresponding to the first CORESET.

[0062] In an embodiment of the present application, the MAC CE may be a MAC CE that instructs a dedicated beam for the first CORESET, or the MAC CE may be a MAC CE that instructs a general-purpose beam for a group that includes the first CORESET.

[0063] In addition to the first CORESET, the group may include at least one of other CORESETs, PDSCH, PUSCH (physical uplink shared channel), PUCCH (physical uplink control channel), CSI-RS (channel state information reference signal), SRS (sounding reference signal), PRS (positioning reference signal), DMRS (Demodulation Reference Signal), etc.

[0064] In addition, a dedicated beam may refer to a beam used only for the first CORESET, and a general-purpose beam may refer to a beam that can be used for at least one set of channels and / or at least one reference signal, i.e., in addition to the first CORESET, it can also be used for other CORESETs, PDSCHs, PUSCHs, reference signals, etc. that belong to the same group as the first CORESET.

[0065] The default beam determination method provided by the embodiment of the present application determines a default beam corresponding to a first CORESET based on a specified rule, and the maximum number of TCI states supported by the first CORESET is greater than or equal to 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0066] Another default beam determination method provided by an embodiment of the present application will be further described below in conjunction with FIG.

[0067] FIG. 2 is a flowchart of another default beam determination method provided by an embodiment of the present application, which is applied to a user equipment.

[0068] As shown in FIG. 2, the method for determining the default beam may include the following steps 201 to 202.

[0069] Step 201: determining a third beam corresponding to a second CORESET having the smallest possible index value in the nearest one time unit in which a PDCCH needs to be detected;

[0070] The time unit may be any one of slot, mini-slot, TTI (Transport Time Interval), subframe, and infinite frame, and is not limited in the embodiment of the present application. In the embodiment of the present application, a specific description will be given by taking the case where the time unit is a slot as an example.

[0071] In an embodiment of the present application, in response to all CORESETs corresponding to the same CORESETPoolIndex, the user equipment can determine a second CORESET with the smallest possible index value among the nearest slots that need to detect the PDCCH, and determine a default beam corresponding to the first CORESET based on a third beam corresponding to the second CORESET. In this case, the CORESETPoolIndex corresponding to the first CORESET may be 0, 1, 0 and 1, or may be a value other than 0 and 1, such as 2, 3, 4.

[0072] Step 202, a default beam is determined based on the third beam.

[0073] In an embodiment of the present application, when determining a default beam corresponding to a first CORESET based on a third beam corresponding to a second CORESET, one or more of the third beams can be determined as the default beam corresponding to the first CORESET depending on the number of third beams and current service needs.

[0074] As one possible implementation, the third beam can be determined as a default beam corresponding to the first CORESET.

[0075] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and only a maximum of one beam can be configured in the second CORESET, i.e., the number of third beams is one, the third beam can be determined as a default beam corresponding to the first CORESET.

[0076] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and up to two beams can be configured in the second CORESET but only one beam is currently configured, i.e., the number of the third beam is one, the third beam can be determined as a default beam corresponding to the first CORESET.

[0077] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and the second CORESET being capable of configuring up to two beams and currently configuring two beams, i.e., the number of third beams being two, the two third beams may be determined as default beams corresponding to the first CORESET.

[0078] As another possible implementation, one of the third beams corresponding to a specified TRP can be determined as a default beam corresponding to the first CORESET.

[0079] Optionally, in response to the network equipment and the user equipment having pre-agreed on the specified TRP and being able to configure up to two beams in the second CORESET, and currently configuring two beams, i.e., the number of third beams is two, the third beam corresponding to the specified TRP can be determined as a default beam corresponding to the first CORESET.

[0080] For example, among the two third beams, if one third beam, for example, TCI#0, corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) of the two TRPs, and the other third beam, for example, TCI#1, corresponds to TRP#1 (or CORESETPoolIndex#1) of the two TRPs, the designated TRP may be TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), or the designated TRP may be TRP#1 (or the TRP corresponding to CORESETPoolIndex#1). If the designated TRP is TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), TCI#0 is determined as the default beam corresponding to the first CORESET, and if the designated TRP is TRP#1 (or the TRP corresponding to CORESETPoolIndex#1), ​​TCI#1 is determined as the default beam corresponding to the first CORESET.

[0081] In the embodiment of the present application, steps 201 to 202 can be implemented in any one of the manners in each embodiment of the present application, and the embodiment of the present application is not limited thereto, and detailed description thereof will be omitted.

[0082] The method for determining a default beam provided by the embodiment of the present application determines a third beam corresponding to a second CORESET having the smallest possible index value in the nearest time unit in which a PDCCH needs to be detected, and then determines a default beam based on the third beam, thereby predefining a specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, thereby improving the accuracy of determining a default beam for a CORESET supporting multiple TCI states and improving the reliability of multi-TRP data transmission.

[0083] Below, in conjunction with FIG. 3, a further default beam determination method provided by an embodiment of the present application will be further described.

[0084] FIG. 3 is a flowchart of a further default beam determination method provided by an embodiment of the present application, applied to a user equipment.

[0085] As shown in FIG. 3, the method for determining the default beam may include the following steps 301 to 303.

[0086] Step 301: determine a first CORESETPoolIndex corresponding to the first CORESET.

[0087] In an embodiment of the present application, in response to different CORESETs corresponding to different CORESETPoolIndexes, the user equipment can determine a default beam corresponding to the first CORESET based on a CORESET that is the same as the first CORESETPoolIndex corresponding to the first CORESET. Thus, the user equipment can determine a CORESET that is the same as the CORESETPoolIndex of the first CORESET based on the first CORESETPoolIndex by first determining the first CORESETPoolIndex corresponding to the first CORESET.

[0088] As one possible implementation form, CORESETPoolIndex can be used to identify a TRP corresponding to a CORESET, so that a first CORESETPoolIndex corresponding to a first CORESET can be determined based on a TRP corresponding to the first CORESET.

[0089] For example, the first CORESET may actually correspond to two TRPs, and in response to the first CORESET corresponding to the first TRP, it may be determined that the first CORESETPoolIndex corresponding to the first CORESET is a first designated value, in response to the first CORESET corresponding to the second TRP, it may be determined that the first CORESETPoolIndex corresponding to the first CORESET is a second designated value, in response to the first CORESET simultaneously corresponding to the first TRP and the second TRP, it may be determined that the first CORESETPoolIndex corresponding to the first CORESET is a first designated value and a second designated value, or it may be determined that the first CORESETPoolIndex corresponding to the first CORESET is a value other than the first designated value and the second designated value. For example, the first designated value may be 0, the second designated value may be 1, and the other value may be 2, and the embodiment of the present application is not limited thereto.

[0090] Step 302: based on the first CORESETPoolIndex, determine a fourth beam corresponding to a third CORESET having the smallest possible index value in the nearest time unit in which PDCCH needs to be detected, and the CORESETPoolIndex for the third CORESET is the same as the CORESETPoolIndex corresponding to the first CORESET.

[0091] In an embodiment of the present application, after determining the first CORESETPoolIndex corresponding to the first CORESET, the user equipment can determine the third CORESET having the smallest possible index value in the nearest time unit in which the PDCCH needs to be detected, and determine a default beam corresponding to the first CORESET based on the fourth beam corresponding to the third CORESET.

[0092] Step 303: determining a default beam based on the fourth beam.

[0093] In an embodiment of the present application, when determining a default beam corresponding to a first CORESET based on a fourth beam corresponding to a third CORESET, one or more of the fourth beams can be determined as the default beam corresponding to the first CORESET depending on the number of fourth beams and current service needs.

[0094] As one possible implementation, the fourth beam can be determined as a default beam corresponding to the first CORESET.

[0095] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and only a maximum of one beam can be configured in the third CORESET, i.e., the number of the fourth beam is one, the fourth beam can be determined as a default beam corresponding to the first CORESET.

[0096] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and up to two beams can be configured in the third CORESET but only one beam is currently configured, i.e., the number of the fourth beam is one, the fourth beam can be determined as a default beam corresponding to the first CORESET.

[0097] Optionally, in response to the network equipment and the user equipment not having pre-agreed a specified TRP and a maximum of two beams can be configured in the third CORESET, but two beams are currently configured, i.e., the number of fourth beams is two, the two fourth beams are both determined as default beams corresponding to the first CORESET.

[0098] As another possible implementation, one of the fourth beams corresponding to the specified TRP can be further determined as a default beam corresponding to the first CORESET.

[0099] Optionally, in response to the network equipment and the user equipment having pre-agreed on a specified TRP and being able to configure up to two beams in the third CORESET, and currently configuring two beams, i.e., the number of the fourth beam is two, the fourth beam corresponding to the specified TRP can be determined as a default beam corresponding to the first CORESET.

[0100] For example, if one of the two fourth beams, for example TCI#0, corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) of the two TRPs, and the other fourth beam, for example TCI#1, corresponds to TRP#1 (or CORESETPoolIndex#1) of the two TRPs, the designated TRP may be TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), or the designated TRP may be TRP#1 (or the TRP corresponding to CORESETPoolIndex#1). If the designated TRP is TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), TCI#0 is determined as the default beam corresponding to the first CORESET, and if the designated TRP is TRP#1 (or the TRP corresponding to CORESETPoolIndex#1), ​​TCI#1 is determined as the default beam corresponding to the first CORESET.

[0101] Furthermore, since the first CORESETPoolIndex or TPR identifier corresponding to the first CORESET can be used to identify the TRP corresponding to the first CORESET, a beam corresponding to the TRP corresponding to the first CORESET can be selected from the fourth beam based on the possible values ​​of the first CORESETPoolIndex or TRP identifier to be determined as a default beam corresponding to the first CORESET. That is, in one possible implementation form of the embodiment of the present application, step 303 can include a step of determining a fourth beam corresponding to a first specified value as a default beam, or a step of determining a fourth beam corresponding to a second specified value as a default beam, or a step of determining at least one fourth beam corresponding to each of the first specified value and the second specified value as a default beam.

[0102] In addition, the first designated value and the second designated value in the embodiment of the present application can refer to the possible values ​​of CORESETPoolIndex or the possible values ​​of the TRP identifier, and are not limited to the embodiment of the present application. For ease of understanding, the following will be specifically described by taking as an example a case where the first designated value and the second designated value are the possible values ​​of CORESETPoolIndex.

[0103] Optionally, in response to the first CORESETPoolIndex being a first specified value, for example the first specified value being 0 (or corresponding to TRP#0), the user equipment can determine a fourth beam among the fourth beams corresponding to the third CORESET that corresponds to the first specified value as a default beam corresponding to the first CORESET.

[0104] Optionally, in response to the first CORESETPoolIndex being a second specified value, for example, the second specified value being 1 (or corresponding to TRP#1), the user equipment can determine the fourth beam corresponding to the second specified value among the fourth beams corresponding to the third CORESET as a default beam corresponding to the first CORESET.

[0105] Optionally, in response to the first CORESETPoolIndex being a first specified value and a second specified value, for example the first specified value being 0 (or corresponding to TRP#0) and the second specified value being 1 (or corresponding to TRP#1), the user equipment can determine at least one fourth beam corresponding to the first specified value and the second specified value as a default beam corresponding to the first CORESET based on the number of pre-set default beams and the number of fourth beams corresponding to each specified value.

[0106] As one example, the network equipment and the user equipment may agree on whether the number of default beams corresponding to the first CORESET is one or two, and if all CORESETs in the nearest time unit in which a PDCCH needs to be detected only have a third CORESET whose CORESETPoolIndex is a first specified value, the user equipment may determine a fourth beam corresponding to the first specified value as the default beam corresponding to the first CORESET, or in response to all CORESETs in the nearest time unit in which a PDCCH needs to be detected only have a third CORESET whose CORESETPoolIndex is a second specified value, the user equipment may determine a fourth beam corresponding to the second specified value as the default beam corresponding to the first CORESET.

[0107] As an example, in response to the fact that the third CORESET in which CORESETPoolIndex is a first designated value exists and the third CORESET in which CORESETPoolIndex is a second designated value exists among all CORESETs in the nearest one time unit that needs to detect PDCCH, the user equipment can determine both the fourth beams corresponding to the first designated value and the second designated value as default beams corresponding to the first CORESET in response to the number of default beams being two, and in response to the number of default beams being one and the network equipment and the user equipment having pre-agreed on the designated TRP, the user equipment can determine the fourth beam corresponding to the designated TRP as the default beam corresponding to the first CORESET. In this case, the CORESETPoolIndex corresponding to the first CORESET may be 0, 1, 0 and 1, or a value other than 0 and 1, for example, 2, 3, or 4.

[0108] In the embodiments of the present application, steps 301 to 303 can be implemented in any one of the manners in each embodiment of the present application, and the embodiments of the present application are not limited thereto, and detailed description thereof will be omitted.

[0109] The method for determining a default beam provided by the embodiment of the present application determines a first CORESETPoolIndex corresponding to a first CORESET, and determines a fourth beam corresponding to a third CORESET having the smallest possible index value in the nearest one time unit in which a PDCCH needs to be detected based on the first CORESETPoolIndex, and determines a default beam based on the fourth beam where the CORESETPoolIndex for the third CORESET is the same as the CORESETPoolIndex corresponding to the first CORESET. In this way, by predefining a specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET supporting multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0110] Another default beam determination method provided by an embodiment of the present application will be further described below in conjunction with FIG.

[0111] FIG. 4 is a flowchart of another default beam determination method provided by an embodiment of the present application, which is applied to a user equipment.

[0112] As shown in FIG. 4, the method for determining the default beam includes the following steps 401 to 403.

[0113] Step 401: determining a fifth beam corresponding to a fourth CORESET whose corresponding CORESETPoolIndex is a third designated value in the nearest one time unit in which a PDCCH needs to be detected and whose index value is the smallest possible value;

[0114] In one possible implementation, in response to the network equipment and the user equipment pre-agreed that the number of default beams corresponding to the first CORESET is two, the user equipment can further determine two default beams corresponding to the first CORESET. Thus, the user equipment can select a fourth CORESET whose CORESETPoolIndex is the third specified value and whose index has the smallest possible value from all CORESETs in the nearest one time unit that needs to detect PDCCH based on the third specified value, and determine a fifth beam corresponding to the fourth CORESET. For example, the third specified value may be 0, i.e., corresponding to the first TRP which is TRP#0.

[0115] Step 402: determining a sixth beam corresponding to a fifth CORESET whose corresponding CORESETPoolIndex is a fourth designated value in the nearest one time unit in which a PDCCH needs to be detected and whose index value is the smallest possible value;

[0116] In the embodiment of the present application, after determining the fifth beam corresponding to the fourth CORESET, the user equipment can determine the fifth CORESET whose CORESETPoolIndex is the fourth specified value and whose index has the smallest possible value from all CORESETs in the nearest one time unit that needs to detect PDCCH according to the fourth specified value, and determine the sixth beam corresponding to the fifth CORESET. For example, the fourth specified value may be 1, that is, corresponding to the second TRP which is TRP#1.

[0117] It should be noted that the time unit corresponding to the fourth CORESET and the time unit corresponding to the fifth CORESET may be different time units, thereby ensuring that the user equipment determines two default beams.

[0118] Step 403: The fifth and sixth beams are determined as default beams.

[0119] In an embodiment of the present application, after determining the fifth beam corresponding to the fourth CORESET and the sixth beam corresponding to the fifth CORESET, the fifth beam and the sixth beam can be determined as two default beams corresponding to the first CORESET. In this case, the CORESETPoolIndex corresponding to the first CORESET may be 0 and 1, or a value other than 0 and 1, for example, 2, 3, and 4. That is, it indicates that the first CORESET corresponds to two TCI states, and each TCI state corresponds to one of two TRPs.

[0120] In the embodiments of the present application, steps 401 to 403 can be implemented in one manner in each embodiment of the present application, and the embodiments of the present application are not limited thereto, and detailed description thereof will be omitted.

[0121] The method for determining a default beam provided by the embodiment of the present application determines a fifth beam corresponding to a fourth CORESET whose corresponding CORESETPoolIndex is a third specified value and whose index has the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, determines a sixth beam corresponding to a fifth CORESET whose corresponding CORESETPoolIndex is a fourth specified value and whose index has the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, and further determines the fifth beam and the sixth beam as default beams. In this way, the specified rule is defined in advance to determine a default beam corresponding to a CORESET supporting multiple TCI states, thereby improving the accuracy of determining a default beam for a CORESET with multiple corresponding TCI states, and improving the reliability of multi-TRP data transmission.

[0122] Another default beam determination method provided by an embodiment of the present application will be further described below in conjunction with FIG.

[0123] FIG. 5 is a flowchart of another default beam determination method provided by an embodiment of the present application, which is applied to a user equipment.

[0124] As shown in FIG. 5, the method for determining the default beam may include the following steps 501 to 503.

[0125] Step 501: receiving configuration signaling transmitted from a network device, the configuration signaling being used to configure at least one CORESET among a second CORESET, a third CORESET, a fourth CORESET, and a fifth CORESET, and one or more beams corresponding to each of the at least one CORESET.

[0126] The configuration signaling may include a MAC CE and / or a DCI.

[0127] In an embodiment of the present application, the network device can configure each CORESET and one or multiple beams corresponding to each CORESET according to at least one of MAC CE and DCI.

[0128] In one possible implementation, when the network equipment configures at least one CORESET and its corresponding beams through the MAC CE, it determines the number of beams that can be activated for the at least one CORESET according to the number of TRPs included in the network equipment and the current service needs, and activates the corresponding number of beams through the MAC CE, so that the user equipment can determine one or more beams corresponding to the at least one CORESET according to the received MAC CE.

[0129] In one possible implementation form, when the network equipment configures at least one CORESET and its corresponding beams by DCI, it can also determine the number of beams that can be activated for the at least one CORESET according to the number of TRPs included in the network equipment and current service needs, and configures the corresponding number of beams for the at least one CORESET by sending DCI to the user equipment, so that the user equipment can determine one or more beams corresponding to the at least one CORESET based on the received DCI.

[0130] It should be noted that the TCI status indication domain for indicating beams in the DCI can be represented as multiple different codepoints at different times, and each codepoint can correspond to a set of beams, where each set of beams can include one or two beams. And the correspondence between the codepoint and each set of beams can be indicated by the MAC CE, so that when the network device configures at least one CORESET and its corresponding one or multiple beams through the DCI, the MAC CE and the DCI can be included in the configuration signaling at the same time.

[0131] Step 502, determining a default beam corresponding to a first CORESET based on a specified rule, where a maximum number of TCI states supported by the first CORESET is greater than or equal to two.

[0132] In the embodiments of the present application, step 502 can be implemented in any one of the various embodiments of the present application, and the embodiments of the present application are not limited thereto, and detailed description thereof will be omitted.

[0133] Step 503: transmitting data and / or reference signals corresponding to the first CORESET according to a default beam corresponding to the first CORESET.

[0134] The data corresponding to the first CORESET may include downlink data and uplink data corresponding to the first CORESET or scheduled by the first CORESET, and the reference signal corresponding to the first CORESET may include a downlink reference signal and an uplink reference signal corresponding to the first CORESET or scheduled by the first CORESET.

[0135] In an embodiment of the present application, a default beam corresponding to the first CORESET can be used to transmit and receive downlink data, downlink reference signals, uplink data, uplink reference signals, etc. corresponding to or scheduled by the first CORESET, so that after determining a default beam corresponding to the first CORESET, the user equipment can transmit downlink data, downlink reference signals, uplink data, uplink reference signals, etc. corresponding to or scheduled by the first CORESET based on the default beam corresponding to the first CORESET. The default beam corresponding to the first CORESET can further be used to transmit uplink data without a configured grant (UL configured grant free).

[0136] As an example, a default beam corresponding to the first CORESET can be used to receive the PDSCH. That is, in one possible implementation of the embodiment of the present application, the data corresponding to the first CORESET can include data carried by the PDSCH of the second DCI scheduling transmitted on the PDCCH in the first CORESET.

[0137] As an example, the default beam corresponding to the first CORESET can be further used to transmit the PUSCH. That is, in one possible implementation form of the embodiment of the present application, the data corresponding to the first CORESET can include data carried by the PUSCH of the third DCI scheduling transmitted on the PDCCH in the first CORESET.

[0138] As an example, the default beam corresponding to the first CORESET can further be used for transmitting and receiving PRACH (Physical Random Access Channel), PUCCH, CSI-RS, and SRS, that is, in one possible implementation form of an embodiment of the present application, the data corresponding to the first CORESET can include PRACH, PUCCH, CSI-RS, and SRS.

[0139] A method for determining a default beam provided by an embodiment of the present application includes receiving a configuration signaling sent from a network device, the configuration signaling being used to configure at least one of a second CORESET, a third CORESET, a fourth CORESET, and a fifth CORESET, and one or more beams corresponding to each of the at least one CORESET, and determining a default beam corresponding to a first CORESET based on a specified rule, the maximum number of TCI states supported by the first CORESET is equal to or greater than 2, and transmitting data and / or reference signals corresponding to the first CORESET based on the default beam corresponding to the first CORESET. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0140] FIG. 6 is a flowchart of another default beam determination method provided by an embodiment of the present application, which is applied to a network device.

[0141] As shown in FIG. 6, the method for determining the default beam includes the following step 601.

[0142] Step 601, determine a default beam corresponding to a first CORESET based on a specified rule, where the maximum number of TCI states supported by the first CORESET is greater than or equal to two.

[0143] In addition, the application scenario of the method for determining a default beam in the embodiment of the present application may include a scenario in which a default beam is determined for a CORESET in which multiple TCI states can be set, where a TCI state is a beam, and one TCI state can correspond to one beam.

[0144] The first CORESET may refer to a CORESET that can support multiple TCI states. Although the first CORESET can support multiple TCI states, it may also set one TCI state for it at a specific time according to actual service needs, and the embodiment of the present application is not limited thereto.

[0145] As an example, the first CORESET may be a CORESET that supports two TCI states. Note that the following content of this application will be specifically described using an example in which the first CORESET is a CORESET that can support two TCI states.

[0146] In one possible implementation form, the MAC CE signaling can be a beam instruction signaling of the CORESET, so that the default beam corresponding to the first CORESET can be determined by the MAC CE signaling. That is, in one possible implementation form of the embodiment of the present application, step 601 can include a step of transmitting a MAC CE for activating a first beam corresponding to the first CORESET, and a step of determining the first beam as a default beam corresponding to the first CORESET.

[0147] In an embodiment of the present application, a network device can determine the number of beams to be activated for a first CORESET according to the number of TRPs included therein and current service needs, activate the corresponding first beam via a MAC CE, and determine the first beam as a default beam corresponding to the first CORESET.

[0148] For example, when the network equipment includes two TRPs, the network equipment may determine that the number of first beams may be 1 or 2, and the network equipment may activate one first beam for the first CORESET or activate two first beams for the first CORESET by sending a MAC CE to the user equipment. Note that when activating two first beams for the first CORESET, each first beam corresponds to a different TRP, where the TRPs may be distinguished by at least one of a TRP identifier, a CORESETPoolIndex, a reference signal resource identifier, a reference signal resource set identifier, a panel ID, etc.

[0149] In addition, when the network device determines the default beam corresponding to the first CORESET based on the first beam, the network device can determine the corresponding first beam as the default beam corresponding to the first CORESET based on the number of the first beams and the number of the preset default beams. The following three cases can be selected:

[0150] [Case 1] The number of first beams is one, and the one first beam is determined as a default beam corresponding to the first CORESET.

[0151] As one possible implementation form, in response to the number of first beams being one, the network equipment can directly determine the one first beam that the MAC CE has activated for the first CORESET as a default beam corresponding to the first CORESET.

[0152] [Case 2] The number of first beams is two, and the two first beams are determined as default beams corresponding to the first CORESET.

[0153] As one possible implementation form, in response to the number of first beams being two and the number of default beams pre-agreed upon between the network equipment and the user equipment being two, or the number of default beams not being pre-agreed upon, the network equipment can directly determine the two first beams activated by the MAC CE for the first CORESET as default beams corresponding to the first CORESET.

[0154] [Case 3] The number of first beams is two, and one of the two first beams corresponding to a specified TRP is determined as a default beam corresponding to the first CORESET.

[0155] As one possible implementation, the MAC CE can include multiple bits for activating the TCI state of different TRPs, and the network equipment can know which TRP's TCI state is used to activate each bit in the MAC CE. Thus, in response to the number of first beams being two and the network equipment and the user equipment pre-agreeing on the designated TRP, the network equipment can determine a first beam among the two first beams corresponding to the designated TRP based on the correspondence between each bit in the MAC CE and the TRP, and determine the first beam corresponding to the designated TRP as a default beam corresponding to the first CORESET.

[0156] For example, if one of the two first beams corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) of the two TRPs and the other first beam corresponds to TRP#1 (or CORESETPoolIndex#1) of the two TRPs, the specified TRP may be TRP#0 (or the TRP corresponding to CORESETPoolIndex#0) or may be TRP#1 (or the TRP corresponding to CORESETPoolIndex#1).

[0157] As another possible implementation form, the DCI can be a beam indication signaling of the CORESET, and thus the network device can determine a default beam corresponding to the first CORESET through the DCI. That is, in one possible implementation form of the embodiment of the present application, step 601 can include a step of transmitting a first DCI for indicating a second beam corresponding to the first CORESET, and a step of determining the second beam as a default beam corresponding to the first CORESET.

[0158] In an embodiment of the present application, the network equipment can further determine the number of beams to be activated for the first CORESET according to the number of TRPs included therein and current service needs, configure a corresponding number of second beams for the first CORESET by sending DCI to the user equipment, and determine the second beam as a default beam corresponding to the CORESET.

[0159] In addition, the TCI state domain for indicating the beam in the DCI is a number of bits (e.g., 3 bits), and the number of bits can be represented as a number of different codepoints at different times, e.g., "000", "001", "010", "011", "100", "101", "110", and "111". And each codepoint can correspond to a set of second beams, where each second beam can include one second beam or two second beams.

[0160] As an example, the correspondence between the codepoint and each set of second beams can be indicated by the MAC CE, that is, multiple second beams can be activated by the MAC CE, and each bit in the MAC CE has a one-to-one correspondence with two second beams corresponding to each codepoint, respectively, but there may be only one second beam corresponding to each codepoint, and it is indicated by the bit information in the MAC CE, and when two second beams corresponding to each codepoint both exist, the two second beams correspond to different TRPs.

[0161] In addition, when the network device determines a default beam corresponding to the first CORESET based on the second beam, the network device may determine the corresponding second beam as the default beam corresponding to the first CORESET based on the number of second beams corresponding to each codepoint in the DCI and the number of default beams set in advance. The following four types of cases can be selected:

[0162] [Case 1] At least one of the second beams is determined as a default beam corresponding to the first CORESET.

[0163] As one possible implementation form, the number of second beams is one, i.e., in response to the DCI indicating that the beam corresponding to the first CORESET is one beam, the network equipment can directly determine the one second beam indicated by the DCI as the default beam corresponding to the first CORESET.

[0164] As another possible implementation form, the number of second beams is two, i.e., in response to the DCI indicating that the number of beams corresponding to the first CORESET is two beams and the number of default beams corresponding to the first CORESET is one, the network equipment can determine any one of the two second beams as the default beam corresponding to the first CORESET.

[0165] As a further possible implementation form, the number of second beams is two, i.e., in response to the DCI indicating that the beams corresponding to the first CORESET are two beams and indicating that the default beams corresponding to the first CORESET are two, the network equipment can determine both of the two second beams indicated by the DCI as default beams corresponding to the first CORESET.

[0166] [Case 2] The second beam corresponding to the codepoint used to indicate one of the second beams in the first DCI and having the smallest possible value is determined as the default beam corresponding to the first CORESET.

[0167] In one possible implementation, each codepoint in the DCI can correspond to a set of second beams, and the network device can determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that there is one default beam corresponding to the first CORESET, the network device can first select a codepoint corresponding to one second beam in the DCI, and determine one second beam corresponding to the selected codepoint with the smallest possible value as a default beam corresponding to the first CORESET.

[0168] For example, each codepoint in the DCI can be represented by three bits, and possible values ​​of the codepoint can include 000, 001, 010, 011, 100, 101, 110, 111, etc., and the above possible values ​​are arranged in ascending order. For example, the codepoint "011" in the DCI corresponds to one second beam, and the codepoint "000" also indicates one second beam, and in this case, the one second beam indicated by the codepoint "000" can be determined as the default beam corresponding to the first CORESET.

[0169] [Case 3] The second beam that is used to indicate two second beams among the first DCI and corresponds to a codepoint with the smallest possible value is determined as the default beam corresponding to the first CORESET.

[0170] In one possible implementation, each codepoint in the DCI can correspond to a set of second beams, and the network device can determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that there are two default beams corresponding to the first CORESET, the network device first selects codepoints corresponding to the two second beams in the DCI, and determines the two second beams corresponding to the selected codepoint with the smallest possible value as default beams corresponding to the first CORESET.

[0171] For example, the codepoint "011" in the DCI corresponds to two second beams, and the codepoint "000" also corresponds to two second beams, and the two second beams indicated by the codepoint "000" can be determined as default beams corresponding to the first CORESET.

[0172] [Case 4] Among the two second beams used to indicate two second beams in the first DCI and corresponding to the codepoint with the smallest possible value, one second beam corresponding to the specified TRP is determined as the default beam corresponding to the first CORESET.

[0173] In one possible implementation, each codepoint in the DCI can correspond to a set of second beams, and the network equipment can determine a second beam corresponding to one of the codepoints as a default beam corresponding to the first CORESET. Thus, in response to the DCI indicating that the beams corresponding to the first CORESET are two beams and indicating that the default beam corresponding to the first CORESET is one, and the network equipment and the user equipment have pre-agreed a designated TRP, the network equipment can first select a codepoint corresponding to the two second beams in the DCI, and based on the correspondence between each bit in the MAC CE and the TRP, determine a second beam corresponding to the designated TRP among the two second beams corresponding to the selected codepoint with the smallest possible value, and determine the second beam corresponding to the designated TRP as a default beam corresponding to the first CORESET.

[0174] For example, codepoint "011" in DCI corresponds to two second beams, codepoint "000" also indicates two second beams, and the two second beams indicated by "000" are TCI#0 and TCI#1, respectively, where TCI#0 corresponds to TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), and TCI#1 corresponds to TRP#1 (or the TRP corresponding to CORESETPoolIndex#1). If the specified TRP is TRP#0 (or the TRP corresponding to CORESETPoolIndex#0), TCI#0 is determined as the default beam corresponding to the first CORESET, and if the specified TRP is TRP#1 (or the TRP corresponding to CORESETPoolIndex#1), ​​TCI#1 is determined as the default beam corresponding to the first CORESET.

[0175] In an embodiment of the present application, the MAC CE may be a MAC CE that instructs a dedicated beam for the first CORESET, or the MAC CE may be a MAC CE that instructs a general-purpose beam for a group that includes the first CORESET.

[0176] In addition to the first CORESET, the group may include at least one of other CORESETs, PDSCH, PUSCH (physical uplink shared channel), PUCCH (physical uplink control channel), CSI-RS (channel state information reference signal), SRS (sounding reference signal), PRS (positioning reference signal), DMRS (demodulation reference signal), etc.

[0177] In addition, a dedicated beam may refer to a beam used only for the first CORESET, and a general-purpose beam may refer to a beam that can be used for at least one set of channels and / or at least one reference signal, i.e., in addition to the first CORESET, it can also be used for other CORESETs, PDSCHs, PUSCHs, reference signals, etc. that belong to the same group as the first CORESET.

[0178] Furthermore, in one possible implementation form of the embodiment of the present application, the network equipment can further determine a default beam corresponding to the first CORESET in the following manner.

[0179] [Method 1] A third beam corresponding to the second CORESET having the smallest possible index value in the nearest time unit in which the PDCCH needs to be detected is determined, and a default beam is determined based on the third beam.

[0180] Further, in one possible implementation form of an embodiment of the present application, the step of determining a default beam based on the third beam includes a step of determining the third beam as a default beam, or a step of determining one beam among the third beams that corresponds to a specified TRP as the default beam.

[0181] [Method 2] A first CORESETPoolIndex corresponding to the first CORESET is determined, and a fourth beam corresponding to a third CORESET having the smallest possible index value in the nearest time unit in which PDCCH needs to be detected is determined based on the first CORESETPoolIndex, and a default beam is determined based on the fourth beam, where the CORESETPoolIndex for the third CORESET and the CORESETPoolIndex corresponding to the first CORESET are the same.

[0182] Further, in one possible implementation form of an embodiment of the present application, the step of determining a default beam based on the fourth beam includes a step of determining the fourth beam as a default beam, or a step of determining one beam among the fourth beams that corresponds to a specified TRP as the default beam.

[0183] Further, in one possible implementation form of an embodiment of the present application, the step of determining a default beam based on the fourth beam includes a step of determining a fourth beam corresponding to a first specified value as a default beam, or a step of determining a fourth beam corresponding to a second specified value as a default beam, or a step of determining at least one fourth beam corresponding to each of the first specified value and the second specified value as a default beam.

[0184] [Method 3] A fifth beam is determined which corresponds to a fourth CORESET whose corresponding CORESETPoolIndex is the third specified value and whose index value is the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, and a sixth beam is determined which corresponds to a fifth CORESET whose corresponding control resource set pool index is the fourth specified value and whose index value is the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, and the fifth beam and the sixth beam are determined as default beams.

[0185] In the embodiments of the present application, the specific manner in which the network equipment determines a default beam corresponding to the first CORESET may be the same as the specific manner in which the user equipment in the above-mentioned embodiments determines a default beam corresponding to the first CORESET, that is, step 601 can be realized in one manner in each embodiment of the present application, and the embodiments of the present application are not limited thereto, and detailed description will be omitted.

[0186] For a specific implementation process in which the network device determines a default beam corresponding to the first CORESET using methods 1 to 3, please refer to the detailed explanation of the above-mentioned embodiment, and a detailed explanation will be omitted here.

[0187] In addition, the network device can further configure at least one CORESET and its corresponding one or more beams. That is, in one possible implementation form of the embodiment of the present application, the above-mentioned default beam determination method further includes a step of transmitting configuration signaling for configuring at least one CORESET and one or more beams corresponding to each CORESET of the at least one CORESET.

[0188] The configuration signaling may include a MAC CE and / or a DCI.

[0189] In an embodiment of the present application, the network device can configure each CORESET and one or multiple beams corresponding to each CORESET according to at least one of MAC CE and DCI.

[0190] In one possible implementation, when the network equipment configures at least one CORESET and its corresponding beams through the MAC CE, it determines the number of beams that can be activated for the at least one CORESET according to the number of TRPs included therein and the current service needs, and activates the corresponding number of beams through the MAC CE.

[0191] In one possible implementation, when the network equipment configures at least one CORESET and its corresponding beams by DCI, it can also determine the number of beams that can be activated for the at least one CORESET according to the number of TRPs contained in the network equipment and the current service needs, and configures the corresponding number of beams for the at least one CORESET by sending DCI to the user equipment.

[0192] It should be noted that the TCI status indication domain for indicating beams in the DCI can be represented as multiple different codepoints at different times, and each codepoint can correspond to a set of beams, where each set of beams can include one or two beams. And the correspondence between the codepoint and each set of beams can be indicated by the MAC CE, so that when the network device configures at least one CORESET and its corresponding one or multiple beams through the DCI, the MAC CE and the DCI can be included in the configuration signaling at the same time.

[0193] The default beam determination method provided by the embodiment of the present application determines a default beam corresponding to a first CORESET based on a specified rule, and the maximum number of TCI states supported by the first CORESET is greater than or equal to 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0194] To realize the above embodiment, the present application further provides a default beam determining apparatus.

[0195] FIG. 7 is a schematic structural diagram of a default beam determining device provided by an embodiment of the present application, which is applied to a user equipment.

[0196] As shown in FIG. 7, the default beam determination device 70 includes a first determination module 71 configured to determine a default beam corresponding to a first CORESET based on a specified rule, where the maximum number of TCI states supported by the first CORESET is two or more.

[0197] In practical use, the default beam determining apparatus provided by the embodiments of the present application can be arranged in any user equipment to perform the above-mentioned default beam determining method.

[0198] The default beam determination device provided by the embodiment of the present application determines a default beam corresponding to a first CORESET based on a specified rule, and the maximum number of TCI states supported by the first CORESET is greater than or equal to 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0199] In one possible implementation form of the present application, the first determination module 71 includes a first receiving unit configured to receive a MAC CE for activating a first beam corresponding to a first CORESET, and a first determination unit configured to determine the first beam as a default beam corresponding to the first CORESET.

[0200] Furthermore, in another possible implementation form of the present application, the first determination unit is specifically configured: when the number of first beams is one, the first determination unit is configured to determine one first beam as a default beam corresponding to the first CORESET; or when the number of first beams is two, the first determination unit is configured to determine two first beams as default beams corresponding to the first CORESET; or when the number of first beams is two, the first beam among the two first beams, which corresponds to a specified TRP, is configured to be determined as a default beam corresponding to the first CORESET.

[0201] Furthermore, in a further possible implementation form of the present application, the first determination module 71 includes a second receiving unit configured to receive a first DCI for indicating a second beam corresponding to the first CORESET, and a second determination unit configured to determine the second beam as a default beam corresponding to the first CORESET.

[0202] Furthermore, in another possible implementation form of the present application, the second determination unit is specifically configured to determine at least one of the second beams as a default beam corresponding to the first CORESET, or to determine a second beam that indicates one second beam in the first DCI and corresponds to a codepoint with the smallest possible value as a default beam corresponding to the first CORESET, or to determine a second beam that is used to indicate two second beams of the first DCI and corresponds to a codepoint with the smallest possible value as a default beam corresponding to the first CORESET, or to determine one second beam that corresponds to a specified TRP among two second beams that are used to indicate two second beams of the first DCI and correspond to a codepoint with the smallest possible value as a default beam corresponding to the first CORESET.

[0203] Furthermore, in another possible implementation form of the present application, the MAC CE is a MAC CE that instructs a dedicated beam of the first CORESET, or the MAC CE is a MAC CE that instructs a general-purpose beam of a group that includes the first CORESET.

[0204] Furthermore, in another possible implementation form of the present application, the first determination module 71 includes a third determination unit configured to determine a third beam corresponding to a second CORESET having the smallest possible index value in the nearest time unit in which a PDCCH needs to be detected, and a fourth determination unit configured to determine a default beam based on the third beam.

[0205] Furthermore, in a further possible implementation form of the present application, the fourth determination unit is specifically configured to determine the third beam as a default beam, or to determine one beam among the third beams corresponding to a specified TRP as the default beam.

[0206] Furthermore, in another possible implementation form of the present application, the first determination module 71 includes a fifth determination unit configured to determine a first CORESETPoolIndex corresponding to the first CORESET, a sixth determination unit configured to determine a fourth beam corresponding to a third CORESET having the smallest possible index value in the nearest time unit in which PDCCH needs to be detected based on the first CORESETPoolIndex, where the CORESETPoolIndex for the third CORESET and the CORESETPoolIndex corresponding to the first CORESET are the same, and a seventh determination unit configured to determine a default beam based on the fourth beam.

[0207] Furthermore, in another possible implementation form of the present application, the seventh determination unit is specifically configured to determine the fourth beam as a default beam, or to determine one beam among the fourth beams corresponding to a specified TRP as the default beam.

[0208] Furthermore, in another possible implementation form of the present application, the seventh determination unit is specifically configured to determine a fourth beam corresponding to a first specified value as a default beam, or to determine a fourth beam corresponding to a second specified value as a default beam, or to determine at least one fourth beam corresponding to each of the first specified value and the second specified value as a default beam.

[0209] Furthermore, in a further possible implementation form of the present application, the first determination module 71 includes an eighth determination unit configured to determine a fifth beam corresponding to a fourth CORESET whose corresponding CORESETPoolIndex is the third specified value and whose index has the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, a ninth determination unit configured to determine a sixth beam corresponding to a fifth CORESET whose corresponding CORESETPoolIndex is the fourth specified value and whose index has the smallest possible value in the nearest time unit in which a PDCCH needs to be detected, and a tenth determination unit configured to determine the fifth beam and the sixth beam as default beams.

[0210] Furthermore, in another possible implementation form of the present application, the default beam determination device 70 further includes a receiving module configured to receive configuration signaling transmitted from a network equipment, the configuration signaling being used to configure at least one CORESET among the second CORESET, the third CORESET, the fourth CORESET, and the fifth CORESET, and one or more beams corresponding to each of the at least one CORESET.

[0211] Furthermore, in another possible implementation of the present application, the configuration signaling includes MAC CE and / or DCI.

[0212] Furthermore, in another possible implementation form of the present application, the default beam determination device 70 further includes a transmission module configured to transmit data and / or reference signals corresponding to the first CORESET based on the default beam corresponding to the first CORESET.

[0213] Furthermore, in a further possible implementation form of the present application, the data corresponding to the first CORESET includes at least one of data carried by a PDSCH scheduled by a second DCI transmitted on a PDCCH in the first CORESET, and data carried by a PUSCH scheduled by a third DCI transmitted on a PDCCH in the first CORESET.

[0214] Incidentally, the above-mentioned description of the embodiment of the default beam determination method shown in Figs. 1 to 5 can also be applied to the default beam determination device 70 of the embodiment, and therefore detailed description thereof will be omitted here.

[0215] The default beam determination device provided by the embodiment of the present application determines a third beam corresponding to a second CORESET having the smallest possible index value in the nearest time unit in which a PDCCH needs to be detected, and further determines a default beam based on the third beam, thereby predefining a specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, thereby improving the accuracy of determining a default beam for a CORESET supporting multiple TCI states and improving the reliability of multi-TRP data transmission.

[0216] To realize the above embodiment, the present application further provides a default beam determining apparatus.

[0217] FIG. 8 is a schematic configuration diagram of another default beam determining device provided by an embodiment of the present application, which is applied to a network equipment.

[0218] As shown in FIG. 8, the default beam determination device 80 includes a second determination module 81 configured to determine a default beam corresponding to a first CORESET based on a specified rule, where the maximum number of TCI states supported by the first CORESET is two or more.

[0219] In practical use, the default beam determination device provided by the embodiment of the present application can be arranged in any network equipment to perform the above-mentioned default beam determination method.

[0220] In one possible implementation form of the present application, the second determination module 81 includes a first transmitting unit configured to transmit a MAC CE for activating a first beam corresponding to a first CORESET, and an eleventh determination unit configured to determine the first beam as a default beam corresponding to the first CORESET.

[0221] Furthermore, in another possible implementation form of the present application, the second determination module 81 includes a second transmitting unit configured to transmit a first DCI for indicating a second beam corresponding to the first CORESET, and a twelfth determination unit configured to determine the second beam as a default beam corresponding to the first CORESET.

[0222] Furthermore, in a further possible implementation form of the present application, the default beam determination device 80 further includes a transmission module configured to transmit transmission configuration signaling for configuring at least one CORESET and one or more beams corresponding to each CORESET among the at least one CORESET.

[0223] It should be noted that the above-mentioned description of the embodiment of the default beam determination method shown in FIG. 6 also applies to the default beam determination device 80 of this embodiment, and will not be described in detail here.

[0224] The default beam determination device provided by the embodiment of the present application determines a default beam corresponding to a first CORESET based on a specified rule, and the maximum number of TCI states supported by the first CORESET is greater than or equal to 2. Thus, by predefining the specified rule and determining a default beam corresponding to a CORESET supporting multiple TCI states, the accuracy of determining a default beam for a CORESET corresponding to multiple TCI states is improved, and the reliability of multi-TRP data transmission is improved.

[0225] To realize the above embodiment, the present application further provides a user equipment.

[0226] A user equipment provided by an embodiment of the present application includes a processor, a transceiver, a memory, and a program stored in the memory and executable by the processor, and when the processor executes the executable program, the processor can perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0227] Here, the processor may include various types of storage media, which may be non-transitory computer storage media and may continue to store information stored therein even after the user equipment is powered off.

[0228] The processor can be connected to the memory via a bus or the like so as to read executable programs stored in the memory, for example at least one of the programs shown in FIGS.

[0229] In one possible implementation of the present application, the step of determining a default beam corresponding to the first CORESET based on the specified rule includes the steps of receiving a MAC CE for activating a first beam corresponding to the first CORESET; determining the first beam as a default beam corresponding to the first CORESET.

[0230] Furthermore, in another possible implementation form of the present application, the step of determining a first beam as a default beam corresponding to the first CORESET includes: when the number of first beams is one, and determining one first beam as a default beam corresponding to the first CORESET; or when the number of first beams is two, and determining the two first beams as default beams corresponding to the first CORESET; or when the number of first beams is two, and determining one of the two first beams that corresponds to a specified TRP as a default beam corresponding to the first CORESET.

[0231] Furthermore, in a further possible implementation form of the present application, the step of determining a default beam corresponding to the first CORESET based on a specified rule includes a step of receiving a first DCI for indicating a second beam corresponding to the first CORESET, and a step of determining the second beam as a default beam corresponding to the first CORESET.

[0232] Furthermore, in another possible implementation form of the present application, the step of determining the second beam as a default beam corresponding to the first CORESET includes a step of determining at least one of the second beams as a default beam corresponding to the first CORESET, or a step of indicating one second beam in the first DCI and determining a second beam corresponding to a codepoint with the smallest possible value as a default beam corresponding to the first CORESET, or a step of indicating two second beams in the first DCI and determining a second beam corresponding to a codepoint with the smallest possible value as a default beam corresponding to the first CORESET, or a step of indicating two second beams in the first DCI and determining one second beam corresponding to a specified TRP among the two second beams corresponding to the codepoint with the smallest possible value as a default beam corresponding to the first CORESET.

[0233] Furthermore, in another possible implementation form of the present application, the MAC CE is a MAC-CE that instructs a dedicated beam of the first CORESET, or the MAC CE is a MAC CE that instructs a general-purpose beam of a group that includes the first CORESET.

[0234] Furthermore, in another possible implementation form of the present application, the step of determining a default beam corresponding to a first CORESET based on a specified rule includes a step of determining a third beam corresponding to a second CORESET having the smallest possible index value in the nearest time unit in which a PDCCH needs to be detected, and a step of determining a default beam based on the third beam.

[0235] Furthermore, in a further possible implementation form of the present application, the step of determining a default beam based on the third beam includes a step of determining the third beam as a default beam, or a step of determining one beam among the third beams that corresponds to a specified TRP as the default beam.

[0236] Furthermore, in another possible implementation form of the present application, the step of determining a default beam corresponding to the first CORESET based on a specified rule includes the steps of determining a first CORESETPoolIndex corresponding to the first CORESET, determining a fourth beam corresponding to a third CORESET having the smallest possible index value in the nearest time unit in which a PDCCH needs to be detected based on the first CORESETPoolIndex, where the CORESETPoolIndex for the third CORESET and the CORESETPoolIndex corresponding to the first CORESET are the same, and determining a default beam based on the fourth beam.

[0237] Furthermore, in another possible implementation form of the present application, the step of determining a default beam based on the fourth beam includes a step of determining the fourth beam as a default beam, or a step of determining one beam among the fourth beams that corresponds to a specified TRP as the default beam.

[0238] Furthermore, in another possible implementation form of the present application, the step of determining a default beam based on the fourth beam includes a step of determining a fourth beam corresponding to a first specified value as a default beam, or a step of determining a fourth beam corresponding to a second specified value as a default beam, or a step of determining at least one fourth beam corresponding to each of the first specified value and the second specified value as a default beam.

[0239] Furthermore, in a further possible implementation form of the present application, the step of determining a default beam corresponding to the first CORESET based on the specified rule includes a step of determining a fifth beam corresponding to a fourth CORESET whose corresponding CORESETPoolIndex is the third specified value in the nearest time unit in which a PDCCH needs to be detected and whose index has the smallest possible value, a step of determining a sixth beam corresponding to a fifth CORESET whose corresponding CORESETPoolIndex is the fourth specified value in the nearest time unit in which a PDCCH needs to be detected and whose index has the smallest possible value, and a step of determining the fifth beam and the sixth beam as default beams.

[0240] Furthermore, in another possible implementation form of the present application, the processor is further used to perform an operation of receiving configuration signaling transmitted from a network equipment, the configuration signaling being used to configure at least one CORESET among a second CORESET, a third CORESET, a fourth CORESET, and a fifth CORESET, and one or more beams corresponding to each of the at least one CORESET.

[0241] Furthermore, in another possible implementation of the present application, the configuration signaling includes MAC CE and / or DCI.

[0242] Furthermore, in another possible implementation form of the present application, the processor is further used to perform an operation of transmitting data and / or reference signals corresponding to the first CORESET based on a default beam corresponding to the first CORESET.

[0243] Furthermore, in a further possible implementation form of the present application, the data corresponding to the first CORESET includes at least one of data carried by a PDSCH scheduled by a second DCI transmitted on a PDCCH in the first CORESET, and data carried by a PUSCH scheduled by a third DCI transmitted on a PDCCH in the first CORESET.

[0244] To realize the above embodiment, the present application further provides a user equipment.

[0245] A network device provided by an embodiment of the present application includes a processor, a transceiver, a memory, and a program stored in the memory and executable by the processor, wherein when the processor executes the executable program, the processor can perform an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of TCI states supported by the first CORESET is two or more.

[0246] Here, the processor may include various types of storage media, which are non-transitory computer storage media and can continue to store information stored therein even after the network device is powered off.

[0247] The processor may be connected to the memory by a bus so as to read executable programs stored in the memory, for example at least one of those of FIG.

[0248] In one possible implementation form of the present application, the step of determining a default beam corresponding to the first CORESET based on a specified rule includes the steps of transmitting a MAC CE for activating the first beam corresponding to the first CORESET and determining the first beam as a default beam corresponding to the first CORESET.

[0249] Furthermore, in another possible implementation form of the present application, the step of determining a default beam corresponding to the first CORESET based on a specified rule includes a step of transmitting a first DCI for indicating a second beam corresponding to the first CORESET, and a step of determining the second beam as a default beam corresponding to the first CORESET.

[0250] Furthermore, in a further possible implementation of the present application, the processor is further used to perform an operation of transmitting configuration signaling for configuring at least one CORESET and one or more beams corresponding to a CORESET among the at least one CORESET.

[0251] To realize the above embodiment, the present application further provides a default beam determination system, including a user equipment and a network equipment.

[0252] Here, the user equipment includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory and configured to control transmission and reception of wireless signals by the transceiver by executing computer-executable instructions in the memory, and capable of performing an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0253] Here, the network equipment includes a transceiver, a memory, and a processor connected to each of the transceiver and the memory and configured to control transmission and reception of wireless signals by the transceiver by executing computer-executable instructions in the memory, and capable of performing an operation of determining a default beam corresponding to a first CORESET based on a specified rule, wherein the maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two or more.

[0254] To implement the above embodiments, the present application further provides a computer storage medium.

[0255] A computer storage medium provided by an embodiment of the present application stores an executable program, and when the executable program is executed by a processor, it can realize a default beam determination method provided by any of the technical solutions described above, for example, at least one of Figures 1 to 6.

[0256] To achieve the above embodiment, the present application further provides a computer program product including a computer program, which, when executed by a processor, achieves the above method for determining a default beam.

[0257] To realize the above embodiments, the present application further provides a computer program, which, when executed by a processor, realizes the device identification method described in the embodiments of the present application.

[0258] 9 is a block diagram of a user equipment UE 900 provided by an embodiment of the present application. For example, the UE 900 may be a mobile phone, a computer, a digital broadcasting user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0259] Referring to FIG. 9, the UE 900 may include at least one of a processing component 902, a memory 904, a power component 906, a multimedia component 908, an audio component 910, an input / output (I / O) interface 912, a sensor component 914, and a communication component 916.

[0260] The processing component 902 typically controls the overall operation of the UE 900, such as operations related to display, phone calls, data communication, camera operation, and recording operation. The processing component 902 may include at least one processor 920 to execute instructions to complete all or some steps of the above-mentioned methods. The processing component 902 may also include one or more modules to facilitate interaction between the processing component 902 and other components. For example, the processing component 902 may include a multimedia module to facilitate interaction between the processing component 902 and a multimedia component 908.

[0261] The memory 904 is configured to store various types of data to support operation on the UE 900. Examples of such data include instructions for any application programs or methods operated on the UE 900, contact data, phone book data, messages, photos, videos, etc. The memory 904 can be implemented with any type of volatile or non-volatile storage device, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk, or any combination thereof.

[0262] The power component 906 provides power to the various components of the UE 900. The power component 906 may include a power management system, one or more power sources, and other components associated with generating, managing, and allocating power for the UE 900.

[0263] The multimedia component 908 includes a screen that provides an output interface between the UE 900 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). When the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel may include one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors may detect the boundaries of touch or slide operations as well as wake-up times and pressures associated with the touch or slide operations. In some embodiments, the multimedia component 908 includes a front camera and / or a rear camera. When the UE 900 is in an operation mode, such as a photo mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may have a fixed optical lens system or a focal length and an optical zoom function.

[0264] The audio component 910 is configured to output and / or input audio signals. For example, the audio component 910 includes one microphone (MIC) configured to receive an external audio signal when the UE 900 is in an operation mode such as a call mode, a record mode, or a voice recognition mode. The received audio signal can be further stored in the memory 904 or can be transmitted by the communication component 916. In some embodiments, the audio component 910 further includes one speaker for outputting the audio signal.

[0265] The I / O interface 912 provides an interface between the processing component 902 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons include, but are not limited to, a home page button, volume buttons, a start button, and a lock button.

[0266] The sensor component 914 includes one or more sensors to provide various status assessments for the UE 900. For example, the sensor component 914 can detect the on / off state of the UE 900, the relative positioning of a component, such as the display and keypad of the UE 900, and can further detect a change in the position of the UE 900 or one of the components of the UE 900, whether there is contact between the user and the UE 900, the orientation or acceleration / deceleration of the UE 900, and a change in temperature of the UE 900. The sensor component 914 may include a proximity sensor configured to detect whether an object is present nearby in the absence of any physical contact. The sensor component 914 may further include an optical sensor for use in imaging applications, such as a CMOS or CCD image sensor. In some embodiments, the sensor component 914 may further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0267] The communication component 916 is configured to facilitate wired or wireless communication between the UE 900 and other devices. The UE 900 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In one exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 916 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0268] In an exemplary embodiment, the UE 900 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements to perform the above methods.

[0269] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions is further provided, such as a memory 904 containing instructions, which can be executed by the processor 920 of the UE 900 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, an optical data storage device, and the like.

[0270] As shown in FIG. 10, it is a schematic diagram of a network device provided by an embodiment of the present application. For example, the network device 1000 can be provided as a network device. Referring to FIG. 10, the network device 1000 includes a processing component 1022, which further includes at least one processor and a memory resource represented by a memory 1032, and is used to store instructions executable by the processing component 1022, such as an application. The application stored in the memory 1032 may include one or more modules, each corresponding to a set of instructions. Moreover, the processing component 1022 is configured to execute instructions, thereby performing any method described above that is applied to the network device, such as the method shown in FIG. 6.

[0271] Network device 1000 may further include a power component 1026 configured to perform power management of network device 1000, a wired or wireless network interface 1050 configured to connect network device 1000 to a network, and an input / output (I / O) interface 1058. Network device 1000 may operate an operating system stored in memory 1032, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or a similar system.

[0272] Other embodiments of the present invention will be readily contemplated by those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the present invention, which modifications, uses or adaptations follow the general principles of the present invention and include common general knowledge or commonly used technical means in the art that are not disclosed in this application. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the present application being indicated by the following claims.

[0273] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and various modifications and variations can be made without departing from the scope of the present application, which is limited by the appended claims.

Claims

1. A method for determining a default beam performed by a user equipment, the method comprising: determining a default beam corresponding to a first control resource set (CORESET) for transmitting downlink control information (DCI) based on a specified rule, wherein a maximum number of transmission configuration indication (TCI) states supported by the first CORESET is two, and all of the multiple TCI states supported by the first CORESET are used for transmitting a physical downlink control channel (PDCCH) in the first CORESET, and the default beam is used for transmitting at least one of a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and a reference signal, and the default beam includes one or more TCI states among the TCI states supported by the first CORESET; A method for determining a default beam, comprising:

2. The step of determining a default beam corresponding to a first CORESET that transmits downlink control information (DCI) based on the specified rule includes: receiving a medium access control element (MAC CE) for activating a first beam corresponding to the first CORESET; determining the first beam as a default beam corresponding to the first CORESET; The method for determining a default beam according to claim 1 .

3. The step of determining the first beam as a default beam corresponding to the first CORESET includes: The number of the first beams is two, and determining the two first beams as default beams corresponding to the first CORESET; Or, The number of the first beams is two, and one of the two first beams corresponding to a specified transmitting / receiving point (TRP) is determined as a default beam corresponding to the first CORESET. The method for determining a default beam according to claim 2 .

4. The step of determining a default beam corresponding to a first CORESET that transmits downlink control information (DCI) based on the specified rule includes: receiving a first downlink control information (DCI) for indicating a second beam corresponding to the first CORESET; determining the second beam as a default beam corresponding to the first CORESET; The method for determining a default beam according to claim 1 .

5. The step of determining the second beam as a default beam corresponding to the first CORESET includes: determining at least one of the second beams as a default beam corresponding to the first CORESET; Or, determining a second beam corresponding to a code point used to indicate one second beam of the first DCI and having a smallest possible value as a default beam corresponding to the first CORESET; Or, determining a second beam corresponding to a codepoint used to indicate two second beams of the first DCI and having a smallest possible value as a default beam corresponding to the first CORESET; Or, Among the two second beams corresponding to the codepoints used to indicate the two second beams of the first DCI and having the smallest possible value, one second beam corresponding to a specified TRP is determined as a default beam corresponding to the first CORESET. The method for determining a default beam according to claim 4 .

6. The MAC CE is a MAC CE that indicates a dedicated beam of the first CORESET, or the MAC CE is a MAC CE that indicates a general-purpose beam of a group including the first CORESET, The method for determining a default beam according to claim 2 .

7. The step of determining a default beam corresponding to a first CORESET that transmits downlink control information (DCI) based on the specified rule includes: determining a third beam corresponding to a second CORESET having a smallest possible index value in the nearest one time unit in which a physical downlink control channel (PDCCH) needs to be detected; determining the default beam based on the third beam; The method for determining a default beam according to claim 1 .

8. The step of determining the default beam based on the third beam includes: determining one of the third beams corresponding to a specified TRP as the default beam; The method for determining a default beam according to claim 7 .

9. The method comprises: The method further includes receiving a configuration signaling transmitted from a network device, the configuration signaling being used to configure at least one of a second CORESET, a third CORESET, a fourth CORESET, and a fifth CORESET, and one or more beams corresponding to each of the at least one CORESET; The method for determining a default beam according to claim 1 .

10. The configuration signaling includes a MAC CE and / or a DCI. The method for determining a default beam according to claim 9 .

11. Further comprising transmitting data and / or reference signals corresponding to the first CORESET based on a default beam corresponding to the first CORESET; The method for determining a default beam according to claim 1 .

12. The data corresponding to the first CORESET is Data carried on a physical downlink shared channel (PDSCH) scheduled by a second DCI transmitted on a PDCCH in the first CORESET Including, The method for determining a default beam according to claim 11 .

13. A method for determining a default beam performed by a network device, the method comprising: The method includes: determining a default beam corresponding to a first CORESET for transmitting downlink control information (DCI) based on a specified rule, wherein a maximum number of TCI states supported by the first CORESET is two, and all of the multiple TCI states supported by the first CORESET are used for transmitting a physical downlink control channel (PDCCH) in the first CORESET; the default beam is used for transmitting at least one of a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and a reference signal; and the default beam includes one or more TCI states among the TCI states supported by the first CORESET. A method for determining a default beam, comprising:

14. The step of determining a default beam corresponding to a first CORESET that transmits downlink control information (DCI) based on the specified rule includes: transmitting a MAC CE to activate a first beam corresponding to the first CORESET; determining the first beam as a default beam corresponding to the first CORESET; The method for determining a default beam according to claim 13 .

15. The step of determining a default beam corresponding to a first CORESET that transmits downlink control information (DCI) based on the specified rule includes: transmitting a first DCI for indicating a second beam corresponding to the first CORESET; determining the second beam as a default beam corresponding to the first CORESET; The method for determining a default beam according to claim 13 .

16. The method comprises: and transmitting configuration signaling to a user equipment for configuring at least one CORESET and one or more beams corresponding to each of the at least one CORESET. The method for determining a default beam according to claim 13 .

17. A user equipment (UE) comprising: a transceiver; a memory; and a processor coupled to each of the transceiver and the memory, the processor executing computer-executable instructions in the memory to control transmission and reception of wireless signals by the transceiver; Configured to execute the method for determining a default beam according to any one of claims 1 to 12, 16. A user equipment comprising:

18. A network device comprising: a transceiver; a memory; and a processor coupled to each of the transceiver and the memory, the processor executing computer-executable instructions in the memory to control transmission and reception of wireless signals by the transceiver; and Configured to execute the method for determining a default beam according to any one of claims 13 to 16, A network device comprising:

19. A computer program implementing the method according to any one of claims 1 to 12 or 13 to 16. A computer program comprising:

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