Beam indication method, device and processor readable storage medium

Abstract

The present application provides a beam indication method, device and processor-readable storage medium, the method comprising: determining grouping information of a target physical shared channel between a base station and a terminal device; determining the time domain order of data transmission of the target physical shared channel; determining the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generating downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain order; sending the downlink control information to the terminal device so that the terminal device transmits data to the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information. Since the same beam configuration indication can represent the beam configuration of a group of target physical shared channels in the downlink control information, the number of bits of the beam configuration indication in the downlink control information can be effectively reduced, thereby effectively reducing the transmission resources of the downlink control information.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a beam indication method, device, and processor-readable storage medium. Background Art

[0002] With the development of communication technology, in order to improve the data transmission rate and communication quality between the base station and the terminal equipment, multiple beams can be configured between the base station and the terminal equipment. Before data transmission between the base station and the user, the base station can instruct the terminal equipment to determine the corresponding beam information and target physical shared channel for data transmission through downlink control information (DCI).

[0003] In the prior art, in order to increase the reliability of data transmission and reduce the phenomenon of failed retransmissions, a downlink control information may include a transmission configuration indication (TCI) or an uplink sounding reference signal resource indication (SRS resource indicator, SRI) representing each beam information and the corresponding target physical shared channel.

[0004] Therefore, the number of bits of TCI or SRI included in the downlink control information in the prior art is relatively large, which in turn causes the transmission resources of the downlink control information to occupy a large amount. Summary of the invention

[0005] The present application provides a beam indication method, device and processor-readable storage medium, which solves the technical problem in the prior art that when performing beam indication, the number of TCI or SRI bits included in the downlink control information is large, which causes the transmission resources of the downlink control information to be occupied more.

[0006] In a first aspect, the present application provides a beam indication method, including: the method is applied to a base station, and the method includes:

[0007] Determine grouping information of a target physical shared channel between a base station and a terminal device;

[0008] Determining a time domain order for the target physical shared channel to perform data transmission;

[0009] Determine a beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indicators, the number of target physical shared channels and the time domain sequence;

[0010] The downlink control information is sent to a terminal device, so that the terminal device determines grouping information according to the downlink control information, and transmits data on a target physical shared channel in a corresponding beam direction according to the downlink control information and the grouping information.

[0011] Optionally, the determining grouping information of a target physical shared channel between the base station and the terminal device includes:

[0012] Determine a grouping method of a target physical shared channel between a base station and a terminal device;

[0013] Corresponding grouping information is determined according to the grouping method.

[0014] Optionally, the grouping mode is a default grouping mode of the physical layer;

[0015] The determining corresponding grouping information according to the grouping method includes:

[0016] Determining the number of target physical shared channels and the number of groups;

[0017] Determining a sub-grouping mode according to the number of the target physical shared channels and the number of groups;

[0018] The corresponding grouping information is determined according to the sub-grouping method.

[0019] Optionally, the determining the sub-grouping mode according to the number of the target physical shared channels and the number of groups includes:

[0020] If it is determined that the number of target physical shared channels is in an integer divisible relationship with the number of groups, determining the sub-grouping mode to be an integer divisible grouping mode;

[0021] If it is determined that the number of target physical shared channels is in a non-divisible relationship with the number of groups, a preset non-divisible grouping method is obtained, and the preset non-divisible grouping method is determined as a sub-grouping method, and the preset non-divisible grouping method is a first non-divisible grouping method or a second non-divisible grouping method.

[0022] Optionally, the sub-grouping mode is the integer-divisible grouping mode, and the determining corresponding grouping information according to the sub-grouping mode includes:

[0023] Determine the number of target physical shared channels and the number of groups in each group according to the integer-divisible grouping method;

[0024] The number of target physical shared channels in each group and the number of groups are determined as corresponding grouping information.

[0025] Optionally, the sub-grouping mode is the preset non-divisible grouping mode, and the determining corresponding grouping information according to the sub-grouping mode includes:

[0026] Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group;

[0027] If it is determined that the preset non-integer-divisible grouping mode is the first non-integer-divisible grouping mode, the order of time domain arrangement of the target physical shared channels is obtained, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels are determined as corresponding grouping information;

[0028] If the preset non-divisible grouping method is determined to be the second non-divisible grouping method, the order in which each group of target physical shared channels is arranged according to the beam measurement results is determined, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results are determined as the corresponding grouping information.

[0029] Optionally, the calculating the number of groups of each type and the number of target physical shared channels of each group in the corresponding group includes:

[0030] Performing a modulo operation on the number of target physical shared channels and the number of groups, and determining the modulo result as a first group number of target physical shared channels of a first group;

[0031] Performing a difference operation on the number of groups and the first group number, and determining the difference result as a second group number of target physical shared channels of the second group;

[0032] Performing a round-up operation on the number of target physical shared channels and the number of groups, and determining the round-up operation result as the target number of physical shared channels for each first-category group;

[0033] A round-down operation is performed on the number of target physical shared channels and the number of groups, and a result of the round-down operation is determined as the number of target physical shared channels for each second type group.

[0034] In an embodiment of the present application, when the grouping mode is the default grouping mode of the physical layer, the sub-grouping mode can be determined according to the number of target physical shared channels and the number of groups. The sub-grouping modes include: an integer-divisible grouping mode, a first non-integer-divisible grouping mode and a second non-integer-divisible grouping mode. The corresponding grouping information can be determined according to the different sub-grouping modes. After receiving the downlink control information, the terminal device determines the target physical shared channel of the corresponding group in each beam direction according to the different sub-grouping modes and the downlink control information in the grouping information. The target physical shared channel in each sub-grouping mode can be accurately determined, so that the beam indication method has wide versatility.

[0035] Optionally, the grouping method is a high-level configuration grouping method;

[0036] The determining corresponding grouping information according to the grouping method includes:

[0037] Receiving a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer;

[0038] Parsing the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier;

[0039] The corresponding grouping information is determined according to the sub-grouping mode identifier.

[0040] In an embodiment of the present application, the grouping method can be a high-level configured grouping method, by receiving a first RRC signaling or control element sent by a high-level layer above the physical layer; parsing the first RRC signaling or control element to obtain a corresponding sub-grouping method identifier; determining the corresponding grouping information according to the sub-grouping method identifier, the high-level configured grouping method can be an integer-divisible grouping method, a first non-integer-divisible grouping method and a second non-integer-divisible grouping method, and can also be a set of the number of target physical shared channels for each group, and then after receiving the downlink control information, the terminal device determines the corresponding group target physical shared channel in each beam direction according to different sub-grouping methods and downlink control information in the grouping information, can accurately determine the target physical shared channel in each sub-grouping method, and makes the beam indication method more diverse and flexible, thereby improving the flexibility and diversity of the beam indication method.

[0041] Optionally, a plurality of transmission reception points TRPs are included between the base station and the terminal device, and before sending the downlink control information to the terminal device, the method further includes:

[0042] Receiving a second RRC signaling sent by the radio resource control layer, wherein the second RRC signaling includes a number of beam configuration indications included in the plurality of TRPs;

[0043] The second RRC signaling is sent to the terminal device, and the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP based on the number of beam configuration indications included in multiple TRPs and the downlink control information.

[0044] Optionally, the determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels includes:

[0045] If it is determined that the target physical shared channel is a target physical downlink shared channel, determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels as a transmission configuration indication TCI, and determining a TCI identifier corresponding to each group of target physical shared channels;

[0046] If the target physical shared channel is determined to be the target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as the transmission configuration indication TCI or the uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

[0047] Optionally, the generating downlink control information according to each of the beam configuration indications, the number of target physical shared channels and the time domain sequence includes:

[0048] Determine the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels;

[0049] The bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels are concatenated according to the time domain order to form a bit domain;

[0050] Downlink control information is generated according to the bit field and the number of the target physical shared channels.

[0051] In a second aspect, the present application provides a beam indication method, including: the method is applied to a terminal device, and the method includes:

[0052] Receive downlink control information sent by the base station;

[0053] Parsing the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission;

[0054] Determining grouping information of a target physical shared channel according to the downlink control information;

[0055] Determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information;

[0056] Data is transmitted on the corresponding group target physical shared channel in each beam direction.

[0057] Optionally, the determining, according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain sequence, and the grouping information, a corresponding group of target physical shared channels in each beam direction includes:

[0058] Determine each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels;

[0059] The target physical shared channels of the corresponding groups in each beam direction are determined according to the number of the target physical shared channels, the time domain order and the grouping information.

[0060] Optionally, the target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI;

[0061] The transmitting data in the physical shared channel corresponding to the group target in each beam direction includes:

[0062] The target physical shared channel of the corresponding group receives data sent by the base station in each beam direction.

[0063] Optionally, the target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI;

[0064] The transmitting data in the physical shared channel corresponding to the group target in each beam direction includes:

[0065] Data is sent to the base station on the corresponding group target physical shared channel in each beam direction.

[0066] In a third aspect, the present application provides a beam indication device, the device is located in a base station, and the device includes a memory, a transceiver, and a processor:

[0067] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0068] Determine grouping information of a target physical shared channel between a base station and a terminal device;

[0069] Determining a time domain order for the target physical shared channel to perform data transmission;

[0070] Determine a beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indicators, the number of target physical shared channels and the time domain sequence;

[0071] The downlink control information is sent to a terminal device, so that the terminal device determines grouping information according to the downlink control information, and transmits data on a target physical shared channel in a corresponding beam direction according to the downlink control information and the grouping information.

[0072] Optionally, the processor is configured to determine grouping information of a target physical shared channel between a base station and a terminal device, specifically including:

[0073] Determine a grouping method of a target physical shared channel between a base station and a terminal device;

[0074] Corresponding grouping information is determined according to the grouping method.

[0075] Optionally, the grouping mode is a default grouping mode of the physical layer;

[0076] The processor, when used to determine corresponding grouping information according to the grouping method, specifically includes:

[0077] Determining the number of target physical shared channels and the number of groups;

[0078] Determining a sub-grouping mode according to the number of the target physical shared channels and the number of groups;

[0079] The corresponding grouping information is determined according to the sub-grouping method.

[0080] Optionally, the processor is configured to determine the sub-grouping mode according to the number of the target physical shared channels and the number of groups, specifically including:

[0081] If it is determined that the number of target physical shared channels is in an integer divisible relationship with the number of groups, determining the sub-grouping mode to be an integer divisible grouping mode;

[0082] If it is determined that the number of target physical shared channels is in a non-divisible relationship with the number of groups, a preset non-divisible grouping method is obtained, and the preset non-divisible grouping method is determined as a sub-grouping method, and the preset non-divisible grouping method is a first non-divisible grouping method or a second non-divisible grouping method.

[0083] Optionally, the sub-grouping method is the integer-divisible grouping method,

[0084] The processor, when used to determine corresponding group information according to the sub-grouping method, specifically includes:

[0085] Determine the number of target physical shared channels and the number of groups in each group according to the integer-divisible grouping method;

[0086] The number of target physical shared channels in each group and the number of groups are determined as corresponding grouping information.

[0087] Optionally, the sub-grouping mode is the preset non-divisible grouping mode, and the processor is configured to determine corresponding grouping information according to the sub-grouping mode, specifically including:

[0088] Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group;

[0089] If it is determined that the preset non-integer-divisible grouping mode is the first non-integer-divisible grouping mode, the order of time domain arrangement of the target physical shared channels is obtained, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels are determined as corresponding grouping information;

[0090] If the preset non-divisible grouping method is determined to be the second non-divisible grouping method, the order in which each group of target physical shared channels is arranged according to the beam measurement results is determined, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results are determined as the corresponding grouping information.

[0091] Optionally, the processor is configured to calculate the number of groups of each type and the number of target physical shared channels of each group in the corresponding group, specifically including:

[0092] Performing a modulo operation on the number of target physical shared channels and the number of groups, and determining the modulo result as a first group number of target physical shared channels of a first group;

[0093] Performing a difference operation on the number of groups and the first group number, and determining the difference result as a second group number of target physical shared channels of the second group;

[0094] Performing a round-up operation on the number of target physical shared channels and the number of groups, and determining the round-up operation result as the target number of physical shared channels for each first-category group;

[0095] A round-down operation is performed on the number of target physical shared channels and the number of groups, and a result of the round-down operation is determined as the number of target physical shared channels for each second type group.

[0096] Optionally, the grouping method is a high-level configuration grouping method;

[0097] The processor, when used to determine corresponding grouping information according to the grouping method, specifically includes:

[0098] Receiving a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer;

[0099] Parsing the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier;

[0100] The corresponding grouping information is determined according to the sub-grouping mode identifier.

[0101] Optionally, a plurality of transmission reception points TRP are included between the base station and the terminal device;

[0102] The processor is further configured to receive, before sending the downlink control information to the terminal device, a second RRC signaling sent by a radio resource control layer, wherein the second RRC signaling includes the number of beam configuration indications included in the plurality of TRPs;

[0103] The second RRC signaling is sent to the terminal device, and the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP based on the number of beam configuration indications included in multiple TRPs and the downlink control information.

[0104] Optionally, the processor is configured to determine, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels, specifically including:

[0105] If it is determined that the target physical shared channel is a target physical downlink shared channel, determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels as a transmission configuration indication TCI, and determining a TCI identifier corresponding to each group of target physical shared channels;

[0106] If the target physical shared channel is determined to be the target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as the transmission configuration indication TCI or the uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

[0107] Optionally, the processor is configured to generate downlink control information according to each of the beam configuration indications, the number of target physical shared channels, and the time domain sequence, specifically including:

[0108] Determine the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels;

[0109] The bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels are concatenated according to the time domain order to form a bit domain;

[0110] Downlink control information is generated according to the bit field and the number of the target physical shared channels.

[0111] In a fourth aspect, the present application provides a beam indication device, the device is located in a terminal device, and the device includes a memory, a transceiver, and a processor:

[0112] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0113] Receiving downlink control information sent by a base station;

[0114] Parsing the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission;

[0115] Determining grouping information of a target physical shared channel according to the downlink control information;

[0116] Determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information;

[0117] Data is transmitted on the corresponding group target physical shared channel in each beam direction.

[0118] Optionally, the processor is configured to determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order, and the grouping information, specifically including:

[0119] Determine each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels;

[0120] The target physical shared channels of the corresponding groups in each beam direction are determined according to the number of the target physical shared channels, the time domain order and the grouping information.

[0121] Optionally, the target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI;

[0122] The processor is used to transmit data in the corresponding group target physical shared channel in each beam direction, specifically including:

[0123] The target physical shared channel of the corresponding group receives data sent by the base station in each beam direction.

[0124] Optionally, the target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI;

[0125] The processor is used to transmit data in the corresponding group target physical shared channel in each beam direction, specifically including:

[0126] Data is sent to the base station on the corresponding group target physical shared channel in each beam direction.

[0127] In a fifth aspect, the present application provides a beam indication device, the device being located in a base station, and the device comprising:

[0128] A determination unit, configured to determine grouping information of a target physical shared channel between a base station and a terminal device, and determine a time domain order for data transmission of the target physical shared channel;

[0129] a generating unit, configured to determine a beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indicators, the number of target physical shared channels and the time domain sequence;

[0130] The sending unit is used to send the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0131] In a sixth aspect, the present application provides a beam indication device, the device being located in a terminal device, and the device comprising:

[0132] A receiving unit, configured to receive downlink control information sent by a base station;

[0133] A parsing unit, configured to parse the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission;

[0134] a determining unit, configured to determine grouping information of a target physical shared channel according to the downlink control information;

[0135] The determination unit is further used to determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information; the transmission unit is used to transmit data in the corresponding group of target physical shared channels in each beam direction.

[0136] In a seventh aspect, the present application provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute any one of the methods in the first aspect or the second aspect.

[0137] In an eighth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the method described in any one of the first aspect or the second aspect of the claim.

[0138] The present application provides a beam indication method, device and processor-readable storage medium, which determines the grouping information of the target physical shared channel between the base station and the terminal device; determines the time domain order of the target physical shared channel for data transmission; determines the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generates downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain order; sends the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data to the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information. Since the same beam configuration indication can represent the beam configuration of a group of target physical shared channels in the downlink control information, the number of bits of the beam configuration indication in the downlink control information can be effectively reduced, thereby effectively reducing the transmission resources of the downlink control information.

[0139] It should be understood that the contents described in the above summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0140] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0141] Figure 1 A schematic diagram of the format of downlink control information in the prior art;

[0142] Figure 2 A network architecture diagram of the beam indication method provided in an embodiment of the present application;

[0143] Figure 3 A schematic diagram of a flow chart of a beam indication method provided in an embodiment of the present application;

[0144] Figure 4 A schematic diagram of a flow chart of a beam indication method provided in another embodiment of the present application;

[0145] Figure 5 A first schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0146] Figure 6 A second schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0147] Figure 7A third schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0148] Figure 8 A fourth schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0149] Fig. 9 A fifth schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0150] Fig.10 A sixth schematic diagram of downlink control information in a beam indication method provided in another embodiment of the present application;

[0151] Fig.11 A schematic diagram of a flow chart of a beam indication method provided in yet another embodiment of the present application;

[0152] Fig.12 A schematic diagram of a flow chart of a beam indication method provided in yet another embodiment of the present application;

[0153] Fig.13 A schematic diagram of downlink control information in a beam indication method provided in yet another embodiment of the present application;

[0154] Fig.14 A schematic diagram of a flow chart of a beam indication method provided in another embodiment of the present application;

[0155] Fig.15 A schematic diagram of the structure of a beam indication device provided in one embodiment of the present application;

[0156] Fig.16 A schematic diagram of the structure of a beam indication device provided in another embodiment of the present application;

[0157] Fig.17 A schematic diagram of the structure of a beam indication device provided in yet another embodiment of the present application;

[0158] Fig.18 A schematic diagram of the structure of a beam indication device provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0159] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0160] In order to clearly understand the technical solution of the present application, the solution of the prior art is first introduced in detail.

[0161] At present, when the base station instructs the terminal device to determine the beam information and the target physical shared channel corresponding to the data transmission through the downlink control information, TCI or SRI can be set only for each target physical shared channel in one downlink control information. Among them, if the target physical shared channel is a physical downlink shared channel (English: Physical Downlink ShareChannel, referred to as: PDSCH), the downlink control information includes the TCI identifier of the beam direction corresponding to the PDSCH, and the TCI identifier can be one of the 8 candidate TCI identifiers, represented by 3 bits. If the target physical shared channel is a physical uplink shared channel (English: Physical Uplink Share Channel, referred to as: PUSCH), the downlink control information includes the SRI identifier or TCI identifier of the beam direction corresponding to the PUSCH. If it is a TCI identifier, it is represented by 3 bits. If it is an SRI identifier, it is represented by 2 bits when a code book is used, and by 4 bits when a code book is not used.

[0162] In order to increase the reliability of data transmission and reduce the phenomenon of failed retransmissions, since the beams used by each target physical shared channel may be different, a corresponding TCI identifier or SRI identifier is included in a downlink control message for each target physical shared channel. That is, a downlink control message may include a TCI identifier or SRI identifier representing each beam information and the corresponding target physical shared channel. Then the number of bits occupied by the TCI identifier or SRI identifier included in a downlink control message is the sum of the number of bits occupied by each TCI identifier or SRI identifier. For example, in Figure 1 In the downlink control information, the TCI identifiers corresponding to the four physical downlink shared channels are included. The TCI identifier corresponding to PDSCH0 is TCI 0, the TCI identifier corresponding to PDSCH1 is TCI 1, the TCI identifier corresponding to PDSCH2 is TCI 2, and the TCI identifier corresponding to PDSCH3 is TCI 3. The TCI identifier of each physical downlink shared channel is represented by 3 bits. The number of bits occupied by the TCI identifier in the DCI is 12 bits. Therefore, the number of bits of TCI or SRI included in the downlink control information of the prior art is relatively large, which results in a large occupation of the transmission resources of the downlink control information.

[0163] Based on the technical problems in the prior art, the inventors have found through creative research that among the multiple target physical shared channels used for data transmission between the base station and the terminal device, the TCI identifiers or SRI identifiers corresponding to some target shared channels are the same, that is, the beam directions corresponding to some target shared channels are the same. Therefore, in order to effectively reduce the number of bits of TCI or SRI included in a downlink control information, the grouping information of the target physical shared channels between the base station and the terminal device can be determined to determine which target physical shared channels can use the same TCI identifier or SRI identifier. The beam configuration indication corresponding to each group of target physical shared channels is determined according to the grouping information. Among them, the beam configuration indication can be represented by a TCI identifier or an SRI identifier. Then, the time domain order of data transmission for multiple target physical shared channels can also be determined, and the downlink control information is generated according to each beam configuration indication, the number of target physical shared channels and the time domain order. After sending the downlink control information to the terminal device, the terminal device can determine the grouping information of the target physical shared channel according to the downlink control information, and then transmit data to the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information. Since the same beam configuration indication in the downlink control information can represent the beam configuration status of a group of target physical shared channels, the number of bits of the beam configuration indication in the downlink control information can be effectively reduced, thereby effectively reducing the transmission resources of the downlink control information.

[0164] Figure 2 A network architecture diagram of the beam indication method provided in an embodiment of the present application, such as Figure 2 As shown, in the network architecture diagram, a base station 1 and a terminal device 2 are included. Before the base station and the terminal device transmit data, the base station instructs the terminal device 2 to determine the corresponding beam information and target physical shared channel for data transmission through downlink control information. When determining the downlink control information, the base station determines the grouping information of the target physical shared channel between the base station and the terminal device; determines the time domain order for data transmission through the target physical shared channel; determines the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generates downlink control information according to each beam configuration indication, the number of target physical shared channels, and the time domain order. As shown in Figure 2 In the DCI, there are two beam configuration indicators, TCI0 ​​and TCI1. TCI0 ​​is the beam configuration indicator for PDSCH0 and PDSCH1. TCI1 is the beam configuration indicator for PDSCH2 and PDSCH3. Then the base station sends the downlink control information to the terminal device. The terminal device determines the grouping information according to the downlink control information and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information. Figure 2As shown, the target physical shared channels are PDSCH0-PDSCH3 respectively. PDSCH0 and PDSCH1 correspond to one beam direction. PDSCH2 and PDSCH3 correspond to another beam direction.

[0165] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0166] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0167] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0168] The base station involved in the embodiment of the present application may include multiple cells that provide services for terminal devices. Depending on the specific application scenario, the base station can also be called an access point. The base station involved in the embodiment of the present application can be a base station in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a base station in Wide-band Code Division Multiple Access (WCDMA), or a base station in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiment of the present application.

[0169] Embodiments of the present application will be described below with reference to the accompanying drawings.

[0170] Embodiment 1

[0171] Figure 3 A schematic diagram of a flow chart of a beam indication method provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the execution subject of this embodiment is a beam indication device, and the beam indication device can be located in a base station. The beam control method provided by this embodiment includes the following steps:

[0172] Step 101, determine the grouping information of the target physical shared channel between the base station and the terminal device.

[0173] The target physical shared channel is a target physical shared channel used when data is transmitted between the base station and the terminal device. The target physical shared channel may be a PDSCH or a PUSCH. There may be multiple target physical shared channels.

[0174] In this embodiment, when determining the grouping information of the target physical shared channel between the base station and the terminal, the base station may first determine the grouping mode of the target physical shared channel between the base station and the terminal device, and then determine the corresponding grouping information according to the grouping mode.

[0175] The grouping method may be a default grouping method of the physical layer, or a high-layer configured grouping method or other grouping methods, which is not limited in this embodiment.

[0176] In this embodiment, the grouping information may include: the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, the specific target physical shared channels included in each group of target physical shared channels, beam information corresponding to each group of target physical shared channels, etc. Other information may also be included, which is not limited in this embodiment.

[0177] Step 102: determine the time domain order for the target physical shared channel to perform data transmission.

[0178] In this embodiment, when multiple target physical shared channels are used for data transmission between the base station and the terminal device, the base station can determine the time sequence of the multiple target physical shared channels for data transmission according to the data to be transmitted. The time sequence of the multiple target physical shared channels for data transmission is the time domain order.

[0179] Step 103: Determine the beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each beam configuration indicator, the number of target physical shared channels and the time domain sequence.

[0180] In this embodiment, the beam information corresponding to each group of target physical shared channels can be determined based on the grouping information, and then the beam configuration indication corresponding to each group of target physical shared channels can be determined based on the beam information corresponding to each group of target physical shared channels and the mapping relationship between the pre-configured beam information and the beam configuration indication.

[0181] If the target physical shared channel is PDSCH, the beam configuration indication is a TCI identifier. If the target physical shared channel is PUSCH, the beam configuration indication is an SRI identifier or a TCI identifier.

[0182] If the base station receives an uplink sounding reference signal (SRSresource indicator, SRS for short) sent by the terminal device in advance, the beam configuration indication can be configured as an SRI identifier. If the base station does not receive an SRS sent by the terminal device in advance, the beam configuration indication can be configured as a TCI identifier.

[0183] In this embodiment, after the beam configuration indication corresponding to each group of target physical shared channels is determined, the bits corresponding to each group of target physical shared channels may be concatenated according to the time domain order of each beam configuration indication and the target physical shared channel for data transmission to form a bit domain. The number of target physical shared channels is added to generate downlink control information.

[0184] Among them, if the beam configuration indication is a TCI identifier, the beam configuration indication corresponding to each group of target physical shared channels occupies 3 bits. If the beam configuration indication is an SRI identifier, if there is a codebook, the beam configuration indication corresponding to each group of target physical shared channels occupies 2 bits. If there is no codebook, the beam configuration indication corresponding to each group of target physical shared channels occupies 4 bits.

[0185] Step 104, sending the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0186] In this embodiment, a downlink control information includes a beam configuration indication corresponding to each group of target physical shared channels, that is, the same beam configuration indication can represent the beam configuration of a group of target physical shared channels. After receiving the downlink control information, the terminal device can determine the beam information of each group of target physical shared channels according to the parsed beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels and the time domain order of data transmission of the target physical shared channels, as well as the mapping relationship between the pre-configured beam information and the beam configuration indication, and then transmit data in the corresponding group of target physical shared channels in the beam direction corresponding to each beam information.

[0187] The beam indication method provided in this embodiment determines the grouping information of the target physical shared channel between the base station and the terminal device; determines the time domain order of data transmission of the target physical shared channel; determines the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generates downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain order; sends the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data to the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information. Since the same beam configuration indication can represent the beam configuration of a group of target physical shared channels in the downlink control information, the number of bits of the beam configuration indication in the downlink control information can be effectively reduced, thereby effectively reducing the transmission resources of the downlink control information.

[0188] Embodiment 2

[0189] Figure 4 A schematic diagram of a flow chart of a beam indication method provided in another embodiment of the present application is shown in FIG. Figure 4As shown, the beam indication method provided in this embodiment is based on the beam indication method provided in Embodiment 1. When the grouping mode is the default grouping mode of the physical layer, step 101, step 103-step 104 are further refined. The beam indication method provided in this embodiment includes the following steps:

[0190] Step 201, determining the number of target physical shared channels and the number of groups.

[0191] In this embodiment, the base station determines the number of target physical shared channels and the number of packets according to the data requirements for transmission between the base station and the terminal device.

[0192] The number of target physical shared channels may be represented as P, and the number of groups may be represented as N.

[0193] Step 202: determine a sub-grouping method according to the number of target physical shared channels and the number of groups.

[0194] As an optional manner, in this embodiment, step 202 includes the following steps:

[0195] Step 2021, determine whether the number of target physical shared channels and the number of packets are divisible by each other. If so, execute step 2022; otherwise, execute step 2023.

[0196] In this embodiment, the number of target physical shared channels P and the number of packets N are divided or modulo operations are performed to determine whether the number of target physical shared channels and the number of packets are in an integer divisible relationship. If the remainder is zero, it is determined that the number of target physical shared channels and the number of packets are in an integer divisible relationship. If the remainder is non-zero, it is determined that the number of target physical shared channels and the number of packets are in a non-integer divisible relationship.

[0197] Step 2022, determine that the sub-grouping method is a divisible grouping method.

[0198] In this embodiment, if it is determined that the number of target physical shared channels and the number of groups are in an integer divisible relationship, then the sub-grouping mode is determined to be an integer divisible grouping mode.

[0199] In the integer-divisible grouping method, the number of target physical shared channels in each group is the same.

[0200] Step 2023, obtaining a preset non-integer-divisible grouping method, determining the preset non-integer-divisible grouping method as a sub-grouping method, and the preset non-integer-divisible grouping method is a first non-integer-divisible grouping method or a second non-integer-divisible grouping method.

[0201] In this embodiment, if it is determined that the number of target physical shared channels and the number of groups are in an integer divisible relationship, the preset non-integer divisible grouping mode is determined as the sub-grouping mode.

[0202] The first non-integer-divisible grouping method is to divide the number of target physical shared channels as equally as possible, and each group of target physical shared channels is allocated in descending order of the time domain sequence of the target physical shared channels.

[0203] Among them, the second non-integer grouping method is a grouping method in which each group of target physical shared channels is determined according to the beam measurement result between the base station and the terminal equipment.

[0204] Step 203: determine corresponding grouping information according to the sub-grouping method.

[0205] As an optional manner, in this embodiment, the sub-grouping method is a divisible grouping method, and step 203 includes the following steps:

[0206] Step 2031, determining the number of target physical shared channels and the number of groups in each group according to the integer-divisible grouping method.

[0207] Step 2032: Determine the number of target physical shared channels and the number of groups in each group as corresponding grouping information.

[0208] Specifically, in this embodiment, the quotient of the number of target physical shared channels and the number of groups is calculated, and the quotient of the number of target physical shared channels and the number of groups is determined as the number of target physical shared channels in each group. Then the grouping information in the integer grouping method includes: the number of target physical shared channels in each group and the number of groups.

[0209] As another optional manner, in this embodiment, the sub-grouping method is a preset non-divisible grouping method, and step 203 includes the following steps:

[0210] Step 203a, calculating the number of groups in each category and the number of target physical shared channels in each group in the corresponding group.

[0211] Optionally, step 203a includes the following steps:

[0212] Step 203a1: perform a modulus operation on the number of target physical shared channels and the number of groups, and determine the modulus result as the first group number of target physical shared channels of the first group.

[0213] Among them, the group is a group formed by grouping by category. The first group is a group belonging to the first type after grouping by type. The second group is a group belonging to the second type after grouping by type.

[0214] Wherein, the number of target physical shared channels is represented by P, the number of groups is represented by N, and the first number of target physical shared channels of the first group is represented by A. Then A can be expressed as shown in formula (1):

[0215] A=mod(P,N) (1)

[0216] Here, mod(P, N) represents a modulo operation on P and N.

[0217] Step 203a2: performing a difference operation on the number of groups and the first group number, and determining the difference result as the second group number of the target physical shared channel of the second group.

[0218] Wherein, the second group of numbers is represented as B, and B can be expressed as shown in formula (2):

[0219] B=NA (2)

[0220] Step 203a3: perform a round-up operation on the number of target physical shared channels and the number of groups, and determine the round-up operation result as the target number of physical shared channels for each first-type group.

[0221] The target number of physical shared channels of each first-class group is represented by A1, and A1 can be expressed as shown in formula (3):

[0222]

[0223] in, Indicates that P and N are rounded up.

[0224] Step 203a4: perform a floor operation on the number of target physical shared channels and the number of groups, and determine the floor operation result as the target number of physical shared channels for each second type group.

[0225] The target number of physical shared channels of each second group can be expressed as B1, and B1 can be expressed as shown in formula (4):

[0226]

[0227] in, Indicates that P and N are rounded down.

[0228] Step 203b, if it is determined that the preset non-integer-divisible grouping method is the first non-integer-divisible grouping method, the time domain arrangement order of the target physical shared channels is obtained, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the time domain arrangement order of the target physical shared channels are determined as the corresponding grouping information.

[0229] In this embodiment, since the first non-integer grouping method is to divide the number of target physical shared channels as equally as possible, and each group of target physical shared channels is allocated in descending order according to the time domain order of the target physical shared channels, after the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of the time domain arrangement of the target physical shared channels are determined as the corresponding grouping information, in each beam configuration indication of the downlink control information, the number of target physical shared channels of the group corresponding to the front beam configuration indication is greater than or equal to the number of target physical shared channels of the group corresponding to the rear beam configuration indication.

[0230] Step 203c, if it is determined that the preset non-integer-divisible grouping method is the second non-integer-divisible grouping method, then determine the order in which each group of target physical shared channels is arranged according to the beam measurement results, and determine the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results as the corresponding grouping information.

[0231] In this embodiment, since the second non-integer grouping method is a grouping method in which each group of target physical shared channels is determined according to the beam measurement results between the base station and the terminal device, after the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results are determined as the corresponding grouping information, in each beam configuration indication of the downlink control information, the number of target physical shared channels of the relevant group corresponding to the beam configuration indication with excellent beam measurement results is greater than or equal to the number of target physical shared channels of the relevant group corresponding to the beam configuration indication with poor beam measurement results.

[0232] Step 204: determine the time domain order for the target physical shared channel to perform data transmission.

[0233] In this embodiment, the implementation of step 204 is similar to the implementation of step 102 in the first embodiment of the present invention, and will not be described in detail here.

[0234] Step 205: Determine the beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each beam configuration indicator, the number of target physical shared channels and the time domain sequence.

[0235] As an optional implementation manner, in this embodiment, determining the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information in step 205 includes the following steps:

[0236] Step 2051: If the target physical shared channel is determined to be a target physical downlink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI according to the grouping information, and the TCI identifier corresponding to each group of target physical shared channels is determined.

[0237] In this embodiment, when the target physical shared channel is PDSCH, a TCI identifier is used as a beam configuration indicator in the downlink control information, wherein the TCI identifier is represented by 3 bits.

[0238] Step 2052: If the target physical shared channel is determined to be a target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

[0239] In this embodiment, when the target physical shared channel is PUSCH, if the base station receives the SRS sent by the terminal device in advance, the beam configuration indication is the SRI identifier. If the base station does not receive the SRS sent by the terminal device in advance, the beam configuration indication is the TCI identifier.

[0240] As an optional implementation manner, in this embodiment, in step 205, generating downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain sequence includes the following steps:

[0241] Step 2053: determine the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels.

[0242] In this embodiment, the TCI identifier bits or SRI identifier bits corresponding to each group of target physical shared channels are determined based on the beam information corresponding to each group of target physical shared channels and the mapping relationship between the pre-configured beam information and the TCI identifier bits or SRI identifier bits.

[0243] Step 2054: The bits of the TCI identifier or SRI identifier corresponding to each group of target physical shared channels are concatenated in a time domain order to form a bit domain.

[0244] In this embodiment, according to the time domain order of data transmission of the target physical shared channels, the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels are directly concatenated to form a bit field.

[0245] Step 2055: Generate downlink control information according to the bit field and the number of target physical shared channels.

[0246] In this embodiment, the bit field and the number of target physical shared channels are added to the downlink control information of the null data according to a preset format, thereby generating the downlink control information.

[0247] Step 206: Send the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0248] To better illustrate the technical solution of the present embodiment, exemplary explanations are given below for a case where the target physical shared channel is PDSCH, the beam configuration indication is TCI identifier, the sub-grouping modes are respectively an integer-divisible grouping mode, a first non-integer-divisible grouping mode and a second non-integer-divisible grouping mode; and a case where the target physical shared channel is PUSCH, the beam indications are SRI identifier and TCI identifier, the sub-grouping modes are respectively an integer-divisible grouping mode, a first non-integer-divisible grouping mode and a second non-integer-divisible grouping mode.

[0249] Exemplary description 1.1: the target physical shared channel is PDSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is integer-divisible grouping mode.

[0250] like Figure 5 As shown, the base station determines that the number of PDSCHs is 4 and the number of groups is 2. The sub-grouping mode is determined to be an integer-divisible grouping mode, and the bits of the TCI identifier TCI1 of the first group of PDSCHs are determined to be 001, and the bits of the TCI identifier TCI2 of the second group of PDSCHs are determined to be 010. The base station determines the bit field of the TCI identifier to be 001010 in the DCI according to the time domain order of the PDSCH. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001 and 010 respectively, the number of PDSCHs is 4, and the time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2 and PDSCH3. The sub-grouping mode is determined to be an integer-divisible grouping mode, and the PDSCHs in the beam direction of the beam information indicated by TCI1 are PDSCH0 and PDSCH1, and the PDSCHs in the beam direction of the beam information indicated by TCI2 are PDSCH2 and PDSCH3.

[0251] Exemplary description 1.2: the target physical shared channel is PDSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is the first non-integer-divisible grouping mode.

[0252] like Figure 6As shown, the base station determines that the number of PDSCHs is 8 and the number of groups is 3. Since the number of PDSCHs and the number of groups are non-integer-divisible, and the preset non-integer-divisible grouping method is the first non-integer-divisible grouping method, the first integer-divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain The second group number of the second category group B=NA=1, 1 group contains PDSCHs. Then the PDSCHs are arranged from most to least according to the time domain sequence of the PDSCHs, and the number of PDSCHs in each group is C(0)=3, C(1)=3, and C(2)=2. The base station determines that the bits of the TCI identifier TCI1 of the first group of PDSCHs are 001, the bits of the TCI identifier TCI2 of the second group of PDSCHs are 010, and the bits of the TCI identifier TCI3 of the third group of PDSCHs are 011. Then the base station determines the bit field of the TCI identifier in the DCI to be 001010011 according to the time domain sequence of the PDSCHs. After the terminal device receives the downlink control information, it parses the TCI identification bits as 001, 010 and 011, the number of PDSCHs is 8, and the time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7. Then, it is determined that the sub-grouping mode is the first non-integer grouping mode. After determining the time domain order of PDSCH data transmission, the PDSCH in the beam direction of the beam information indicated by TCI1 is PDSCH0, PDSCH1 and PDSCH2, the PDSCH in the beam direction of the beam information indicated by TCI2 is PDSCH3, PDSCH4 and PDSCH5, and the PDSCH in the beam direction of the beam information indicated by TCI3 is PDSCH6 and PDSCH7.

[0253] Exemplary description 1.3: the target physical shared channel is PDSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is the second non-integer-divisible grouping mode.

[0254] like Figure 7 As shown, the base station determines that the number of PDSCHs is 8 and the number of groups is 3. Since the number of PDSCHs and the number of groups are non-integer-divisible, and the preset non-integer-divisible grouping method is the second non-integer-divisible grouping method, the second integer-divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PDSCH. The second group number of the second type of group B = NA = 1, 1 group includes PDSCH. Then the PDSCH is arranged in the order of beam measurement results. The beam measurement results can be determined according to the reference signal received power (RSRP). The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PDSCH are: O(0) = 0, O(1) = 2, O(2) = 1, which means that the beam measurement result of the first group of PDSCH is the best, the beam measurement result of the third group of PDSCH is better, and the beam measurement result of the second group of PDSCH is the worst. In order to ensure the quality of data transmission of each group of PDSCH, the number of PDSCHs in each group is C(0) = 3, C(1) = 2, and C(2) = 3. The base station determines that the bits of the TCI identifier TCI1 of the first group of PDSCH are 001, the bits of the TCI identifier TCI2 of the second group of PDSCH are 010, and the bits of the TCI identifier TCI3 of the third group of PDSCH are 011. Then the base station determines the bit field of the TCI identifier in the DCI as 001010011 according to the time domain order of the target physical shared channel. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier as 001, 010 and 011, the number of PDSCHs is 8, and the time domain order of the target physical shared channel for data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7, then it is determined that the sub-grouping mode is the second non-integer grouping mode, and after determining the order of arrangement of the beam measurement results in the grouping information and the time domain order of data transmission of the target physical shared channel, it is determined that the PDSCH in the beam direction of the beam information indicated by TCI1 is PDSCH0, PDSCH1 and PDSCH2, the PDSCH in the beam direction of the beam information indicated by TCI2 is PDSCH3 and PDSCH4, and the PDSCH in the beam direction of the beam information indicated by TCI3 is PDSCH5, PDSCH6 and PDSCH7.

[0255] Exemplary description 2.1: the target physical shared channel is PUSCH, the beam configuration indication is SRI identifier, and the sub-grouping mode is integer divisible grouping mode.

[0256] like Figure 8As shown, the base station determines that the number of PUSCHs is 4 and the number of groups is 2. Then the sub-grouping mode is determined to be an integer-divisible grouping mode, and the bits of the SRI identifier SRI1 of the first group of PUSCHs are determined to be 0001, and the bits of the SRI identifier SRI2 of the second group of PUSCHs are determined to be 0010. Then the base station determines the bit field of the SRI identifier to be 00010010 in the DCI according to the time domain order of PUSC. After receiving the downlink control information, the terminal device parses the bits of the SRI identifier to be 0001 and 0010 respectively, the number of PUSCHs is 4, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2 and PUSCH3. Then it is determined that the sub-grouping mode is an integer-divisible grouping mode, the PUSCHs in the beam direction of the beam information indicated by SRI1 are PUSCH0 and PUSCH1, and the PUSCHs in the beam direction of the beam information indicated by SRI2 are PUSCH2 and PUSCH3.

[0257] Exemplary description 2.2: the target physical shared channel is PUSCH, the beam configuration indication is the SRI identifier, and the sub-grouping mode is the first non-integer-divisible grouping mode.

[0258] like Fig. 9 As shown, the base station determines that the number of PUSCHs is 8 and the number of groups is 3. Since the number of PUSCHs and the number of groups are non-divisible, and the preset non-divisible grouping method is the first non-divisible grouping method, the first divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCHs. Then, each PUSCH is arranged from most to least according to the time domain sequence of the PUSCH, and the number of PUSCHs in each group is obtained as C(0)=3, C(1)=3, and C(2)=2. The base station determines the SRI identifier of the PUSCH according to the case without a codebook. The base station determines the bits of the SRI identifier SRI1 of the first group of PUSCHs to be 0001, the bits of the SRI identifier SRI2 of the second group of PUSCHs to be 0010, and the bits of the SRI identifier SRI3 of the third group of PUSCHs to be 0011. Then, the base station determines the bit field of the SRI identifier to be 000100100011 in the time domain sequence of the PUSCH in the DCI. After receiving the downlink control information, the terminal device parses the SRI identification bits as 0001, 0010 and 0011, the number of PUSCHs is 8, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH7. Then, it is determined that the sub-grouping mode is the first non-integer grouping mode. After determining the time domain order of PUSCH data transmission, the PUSCH in the beam direction of the beam information indicated by SRI1 is PUSCH0, PUSCH1 and PUSCH2, the PUSCH in the beam direction of the beam information indicated by SRI2 is PUSCH3, PUSCH4 and PUSCH5, and the PUSCH in the beam direction of the beam information indicated by SRI3 is PUSCH6 and PUSCH7.

[0259] Exemplary description 2.3: the target physical shared channel is PUSCH, the beam configuration indication is the SRI identifier, and the sub-grouping mode is the second non-divisible grouping mode.

[0260] like Fig.10 As shown, the base station determines that the number of PUSCHs is 8 and the number of groups is 3. Since the number of PUSCHs and the number of groups are non-divisible, and the preset non-divisible grouping method is the second non-divisible grouping method, the second divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCH. Then the PUSCH is arranged in the order of beam measurement results. The beam measurement results can be determined according to RSRP. The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PUSCH are: O(0) = 0, O(1) = 2, O(2) = 1, which means that the beam measurement result of the first group of PUSCH is the best, the beam measurement result of the third group of PUSCH is better, and the beam measurement result of the second group of PUSCH is the worst. In order to ensure the quality of data transmission of each group of PUSCH, the number of PUSCHs in each group is C(0) = 3, C(1) = 2, and C(2) = 3. The base station determines the SRI identifier of the PUSCH according to the situation with the codebook. It is determined that the bits of the SRI identifier SRI1 of the PUSCH are 01, the bits of the SRI identifier SRI2 of the second group of PUSCH are 10, and the bits of the SRI identifier SRI3 of the third group of PUSCH are 11. Then the base station determines the bit field of the SRI identifier as 011011 in the DCI according to the time domain order of PUSCH. After receiving the downlink control information, the terminal device parses the SRI identifier bits as 01, 10 and 11, the number of PUSCHs is 8, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH7, then determines that the sub-grouping mode is the second non-integer grouping mode, determines the order of arrangement of the beam measurement results in the grouping information and the time domain order of data transmission of the target physical shared channel, and determines that the PUSCH in the beam direction of the beam information indicated by SRI1 is PUSCH0, PUSCH1 and PUSCH2, the PUSCH in the beam direction of the beam information indicated by SRI2 is PUSCH3 and PUSCH4, and the PUSCH in the beam direction of the beam information indicated by SRI3 is PUSCH5, PUSCH6 and PUSCH7.

[0261] Exemplary description 2.4: the target physical shared channel is PUSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is integer-divisible grouping mode.

[0262] The base station determines that the number of PUSCHs is 4 and the number of groups is 2. The sub-grouping mode is determined to be an integer-divisible grouping mode, and the bits of the TCI identifier TCI1 of the first group of PUSCHs are determined to be 001, and the bits of the TCI identifier TCI2 of the second group of PUSCHs are determined to be 010. The base station determines the bit field of the TCI identifier to be 001010 in the DCI according to the time domain order of the PUSCH. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001 and 010, the number of PUSCHs is 4, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2 and PUSCH3. The sub-grouping mode is determined to be an integer-divisible grouping mode, the PUSCH in the beam direction of the beam information indicated by TCI1 is PUSCH0 and PUSCH1, and the PUSCH in the beam direction of the beam information indicated by TCI2 is PUSCH2 and PUSCH3.

[0263] Exemplary description 2.5: the target physical shared channel is PUSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is the first non-integer-divisible grouping mode.

[0264] The base station determines that the number of PUSCHs is 8 and the number of groups is 3. Since the number of PUSCHs and the number of groups are non-divisible, and the preset non-divisible grouping method is the first non-divisible grouping method, the first divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCHs. Then the PUSCHs are arranged from most to least according to the PUSCH time domain sequence, and the number of PUSCHs in each group is C(0)=3, C(1)=3, and C(2)=2. The base station determines that the bits of the TCI identifier TCI1 of the first group of PUSCHs are 001, the bits of the TCI identifier TCI2 of the second group of PUSCHs are 010, and the bits of the TCI identifier TCI3 of the third group of PUSCHs are 011. Then the base station determines the bit field of the TCI identifier in the DCI to be 001010011 according to the time domain sequence of the PUSCHs. After receiving the downlink control information, the terminal device parses the TCI identification bits as 001, 010 and 011, the number of PUSCHs is 8, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH7. Then, it is determined that the sub-grouping mode is the first non-integer grouping mode. After determining the time domain order of PUSCH data transmission, the PUSCH in the beam direction of the beam information indicated by TCI1 is PUSCH0, PUSCH1 and PUSCH2, the PUSCH in the beam direction of the beam information indicated by TCI2 is PUSCH3, PUSCH4 and PUSCH5, and the PUSCH in the beam direction of the beam information indicated by TCI3 is PUSCH6 and PUSCH7.

[0265] Exemplary description 2.6: the target physical shared channel is PUSCH, the beam configuration indication is TCI identifier, and the sub-grouping mode is the second non-integer-divisible grouping mode.

[0266] The base station determines that the number of PUSCHs is 8 and the number of groups is 3. Since the number of PUSCHs and the number of groups are non-divisible, and the preset non-divisible grouping method is the second non-divisible grouping method, the second divisible grouping method is determined. The first group number of the first category group is calculated as A=mod(P, N)=2, and the two groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCH. Then the PUSCHs are arranged in order of the beam measurement results. The beam measurement results can be determined based on RSRP. The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PUSCHs are: O(0)=0, O(1)=2, O(2)=1, which means that the beam measurement result of the first group of PUSCHs is the best, the beam measurement result of the third group of PUSCHs is better, and the beam measurement result of the second group of PUSCHs is the worst. In order to ensure the quality of data transmission of each group of PUSCHs, the number of PUSCHs in each group is C(0)=3, C(1)=2, and C(2)=3. The base station determines that the bits of the TCI identifier TCI1 of the first group of PUSCHs are 001, the bits of the TCI identifier TCI2 of the second group of PUSCHs are 010, and the bits of the TCI identifier TCI3 of the third group of PUSCHs are 011. Then the base station determines the bit field of the TCI identifier in the DCI as 001010011 according to the time domain order of the target physical shared channel. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier as 001, 010 and 011, the number of PUSCHs is 8, and the time domain order of the target physical shared channel for data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH7, then determines that the sub-grouping mode is the second non-integer grouping mode, determines the order of arrangement of the beam measurement results in the grouping information and the time domain order of data transmission of the target physical shared channel, and determines that the PUSCH in the beam direction of the beam information indicated by TCI1 is PUSCH0, PUSCH1 and PUSCH2, the PUSCH in the beam direction of the beam information indicated by TCI2 is PUSCH3 and PUSCH4, and the PUSCH in the beam direction of the beam information indicated by TCI3 is PUSCH5, PUSCH6 and PUSCH7.

[0267] The beam indication method provided in this embodiment can determine the sub-grouping mode according to the number of target physical shared channels and the number of groups when the grouping mode is the default grouping mode of the physical layer. The sub-grouping modes include: an integer-divisible grouping mode, a first non-integer-divisible grouping mode and a second non-integer-divisible grouping mode. The corresponding grouping information can be determined according to different sub-grouping modes. Then, after receiving the downlink control information, the terminal device determines the target physical shared channel of the corresponding group in each beam direction according to the different sub-grouping modes and the downlink control information in the grouping information. The target physical shared channel in each sub-grouping mode can be accurately determined, so that the beam indication method has wide versatility.

[0268] Embodiment 3

[0269] Fig.11 A schematic diagram of a flow chart of a beam indication method provided in another embodiment of the present application is shown in FIG. Fig.11As shown, the beam indication method provided in this embodiment is based on the beam indication method provided in Embodiment 1 of the present invention. When the grouping mode is a high-layer configuration grouping mode, step 101, step 103-step 104 are further refined. The beam indication method provided in this embodiment includes the following steps:

[0270] Step 301: Receive a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer.

[0271] In this embodiment, after the base station determines the target physical shared channel between the base station and the terminal device, it receives an indication sent by a higher layer above the physical layer. The higher layer may be a radio resource control layer (in English: Radio Resource Control, abbreviated as: RRC) or a medium access control layer (in English: Medium Access Control, abbreviated as: MAC). If an indication sent by the RRC layer is received, the indication is the first RRC signaling. If an indication sent by the MAC layer is received, the indication is a control element (in English: Control Element, abbreviated as: CE).

[0272] The first RRC signaling or the control element sent by the medium access control layer includes a sub-grouping mode identifier, wherein the sub-grouping mode identifier may be a sequence number of the sub-group.

[0273] Step 302: parse the first RRC signaling or control element to obtain a corresponding sub-grouping mode identifier.

[0274] Step 303: determine corresponding grouping information according to the sub-grouping mode identifier.

[0275] In this embodiment, a mapping table between each sub-grouping mode identifier and a sub-grouping mode, or a mapping table between each sub-grouping mode identifier and each set of target physical shared channel numbers is stored in advance in the physical layer of the base station and the terminal device. The base station determines the corresponding grouping information according to the sub-grouping mode identifier.

[0276] As shown in Table 1, a mapping relationship between each sub-grouping mode identifier and the sub-grouping mode is stored in Table 1. After the base station determines the sub-grouping mode according to the sub-grouping mode identifier, it determines the corresponding grouping information according to the method of the second embodiment.

[0277] Table 1: Schematic diagram of the mapping relationship between each sub-grouping method identifier and sub-grouping method

[0278] Id Subgrouping 0 Divisibility Grouping 1 First non-integer group 2 The second non-divisible group

[0279] As shown in Table 2, a mapping relationship between each sub-grouping mode identifier and each set of target physical shared channel numbers is stored in Table 2. After the base station determines the sub-grouping mode according to the sub-grouping mode identifier, it determines the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and other grouping information according to each set of target physical shared channel numbers in the sub-grouping mode.

[0280] Step 304: determine the time domain order for the target physical shared channel to perform data transmission.

[0281] Step 305: Determine the beam configuration indicator corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each beam configuration indicator, the number of target physical shared channels and the time domain sequence.

[0282] Step 306: Send the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0283] In this embodiment, the implementation of step 304 to step 306 is similar to the implementation of the corresponding steps in embodiment 2, and will not be described in detail here.

[0284] Table 2: Schematic diagram of the mapping relationship between each sub-grouping mode identifier and each set of target physical shared channel numbers

[0285] Id Subgrouping 0 2,2 1 1,3 2 3,3 3 2,2,2 4 1,2,3 5 4,4 6 3,3,2 7 8,8 8 6,5,5

[0286] It should be noted that the base station can also send a sub-grouping mode identifier to the terminal device so that the terminal device determines the grouping information according to the sub-grouping mode identifier and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0287] In order to better illustrate the technical solution of the present embodiment, the following exemplary descriptions are given for the target physical shared channel being PDSCH, the beam configuration indication being the TCI identifier, the sub-grouping mode identifier being 2, and the table pre-stored in the physical layer being Table 1; and the target physical shared channel being PDSCH, the beam configuration indication being the TCI identifier, the sub-grouping mode identifier being 1, and the table pre-stored in the physical layer being Table 2; and the target physical shared channel being PUSCH, the beam configuration indication being the SRI identifier, the sub-grouping mode identifier being 1, and the table pre-stored in the physical layer being Table 2.

[0288] Exemplary description 3.1: the target physical shared channel is PDSCH, the beam configuration indication is the TCI identifier, the sub-grouping mode identifier is 2, and the table pre-stored in the physical layer is Table 1.

[0289] After receiving the first RRC signaling or MAC CE sent by the high layer, the base station determines through analysis that the subgroup identifier is 2, and then determines through lookup table 1 that the subgroup mode is the second non-integer grouping mode, and then the base station determines that the number of PDSCHs is 8 and the number of groups is 3. Calculate the first group number of the first category group A = mod (P, N) = 2, 2 groups contain PDSCH. The second group number of the second type of group B = NA = 1, 1 group includes PDSCH. Then the PDSCH is arranged in the order of beam measurement results. The beam measurement results can be determined according to RSRP. The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PDSCH are: O(0) = 0, O(1) = 2, O(2) = 1, which means that the beam measurement result of the first group of PDSCH is the best, the beam measurement result of the third group of PDSCH is better, and the beam measurement result of the second group of PDSCH is the worst. In order to ensure the quality of data transmission of each group of PDSCH, the number of PDSCHs in each group is C(0) = 3, C(1) = 2, and C(2) = 3. The base station determines that the bits of the TCI identifier TCI1 of the first group of PDSCH are 001, the bits of the TCI identifier TCI2 of the second group of PDSCH are 010, and the bits of the TCI identifier TCI3 of the third group of PDSCH are 011. Then the base station determines the bit field of the TCI identifier in the DCI as 001010011 according to the time domain order of the target physical shared channel. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier as 001, 010 and 011, the number of PDSCHs is 8, and the time domain order of the target physical shared channel for data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7, then it is determined that the sub-grouping mode is the second non-integer grouping mode, and after determining the order of arrangement of the beam measurement results in the grouping information and the time domain order of data transmission of the target physical shared channel, it is determined that the PDSCH in the beam direction of the beam information indicated by TCI1 is PDSCH0, PDSCH1 and PDSCH2, the PDSCH in the beam direction of the beam information indicated by TCI2 is PDSCH3 and PDSCH4, and the PDSCH in the beam direction of the beam information indicated by TCI3 is PDSCH5, PDSCH6 and PDSCH7.

[0290] Exemplary description 3.2: the target physical shared channel is PDSCH, the beam configuration indication is the TCI identifier, the sub-grouping mode identifier is 1, and the table pre-stored in the physical layer is Table 2.

[0291] The base station determines the number of PDSCHs in each group C(0)=1, C(1)=3 according to the sub-grouping mode identifier 1 in Table 2. The base station determines that the bits of the TCI identifier TCI1 of the first group of PDSCHs are 001, and the bits of the TCI identifier TCI2 of the second group of PDSCHs are 010. Then the base station determines the bit field of the TCI identifier in the DCI to be 001010 according to the time domain order of the PDSCH. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001 and 010 respectively, the number of PDSCHs is 4, and the time domain order of the target physical shared channel for data transmission is PDSCH0, PDSCH1, PDSCH2, PDSCH3. The terminal determines that the PDSCH in the beam direction of the beam information indicated by TCI1 is PDSCH0 according to the downlink control information, the sub-grouping mode identifier 1 and Table 2, and the PDSCH in the beam direction of the beam information indicated by TCI2 is PDSCH1, PDSCH2 and PDSCH3.

[0292] Exemplary description 3.3: The target physical shared channel is PUSCH, the beam configuration indication is the SRI identifier, the sub-grouping mode identifier is 1, and the table pre-stored in the physical layer is Table 2.

[0293] The base station determines the number of PUSCHs in each group C(0)=1, C(1)=3 according to the sub-grouping mode identifier 1 in Table 2. The base station determines that the bits of the SRI identifier SRI1 of the first group of PUSCHs are 0001, and the bits of the SRI identifier SRI2 of the second group of PUSCHs are 0010. Then the base station determines the bit field of the SRI identifier to be 00010010 in the DCI according to the time domain order of the PUSCH. After receiving the downlink control information, the terminal device parses the bits of the SRI identifier to be 0001 and 0010 respectively, the number of PUSCHs is 4, and the time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, PUSCH3. The terminal determines that the PUSCH in the beam direction of the beam information indicated by SRI1 is PUSCH0 according to the downlink control information, the sub-grouping mode identifier 1 and Table 2, and the PUSCH in the beam direction of the beam information indicated by SRI2 is PUSCH1, PUSCH2 and PUSCH3.

[0294] The beam indication method provided in this embodiment may be a grouping method configured by a high layer, by receiving a first RRC signaling or control element sent by a high layer above the physical layer; parsing the first RRC signaling or control element to obtain a corresponding sub-grouping method identifier; determining corresponding grouping information according to the sub-grouping method identifier, the grouping method configured by the high layer may be an integer-divisible grouping method, a first non-integer-divisible grouping method and a second non-integer-divisible grouping method, and may also be a set of the number of target physical shared channels for each group, and then after receiving the downlink control information, the terminal device determines the target physical shared channels of the corresponding groups in each beam direction according to different sub-grouping methods and the downlink control information in the grouping information, and can accurately determine the target physical shared channels in each sub-grouping method, and makes the beam indication method more diverse and flexible, thereby improving the flexibility and diversity of the beam indication method.

[0295] Embodiment 4

[0296] Fig.12 A schematic diagram of a flow chart of a beam indication method provided in yet another embodiment of the present application is shown in FIG. Figure 4 As shown, the beam indication method provided in the embodiment of the present application is based on any one of the embodiments 1 to 3, and the base station and the terminal device include multiple transmission receiving points (English: Transmission receive point, referred to as: TRP), then before sending the downlink control information to the terminal device, it also includes the following steps:

[0297] Step 401: Receive a second RRC signaling sent by the wireless resource control layer, where the second RRC signaling includes the number of beam configuration indications included in multiple TRPs.

[0298] In this embodiment, since there are multiple TRPs between the base station and the terminal device, each TRP may have its own set of TCI or SRI configurations, so in the radio resource control layer, the number of beam configuration indications included in each TRP is configured through the second RRC signaling. After the physical layer of the base station receives the second RRC signaling, it sends the second RRC signaling to the terminal device.

[0299] Step 402: Send a second RRC signaling to the terminal device, where the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP based on the number of beam configuration indications included in multiple TRPs and the downlink control information.

[0300] Among them, the number of beam configuration indications included in each TRP can be the same or different.

[0301] In this embodiment, after the terminal device receives the second RRC signaling, it determines the beam configuration indication included in each TRP in combination with the downlink control information and the number of beam configuration indications included in multiple TRPs, and determines the target physical shared channel of each TRP in the beam direction of each beam configuration indication, so that data can be transmitted through the corresponding target physical shared channel between each TRP and the terminal device.

[0302] In order to better illustrate the technical solution of this embodiment, exemplary explanations are provided below for the cases where the number of beam configuration indications included in each TRP is the same and different.

[0303] Exemplary description 4.1: The beam configuration indication included in different TRPs is a TCI identifier, the number of TCI identifiers included in different TRPs is the same, the target physical shared channel is PDSCH, and the sub-grouping method is an integer-divisible grouping method.

[0304] like Fig.13 As shown, the terminal device receives the second RRC signaling and determines that the number of TCI identifiers included in each TRP in the second RRC signaling is the same, both are two. The base station determines that the number of PDSCHs is 8 and the number of groups is 4. The sub-grouping method is determined to be an integer grouping method, and the bits of the TCI identifier TCI1 of the first group of PDSCHs are determined to be 001, the bits of the TCI identifier TCI2 of the second group of PDSCHs are determined to be 010, the bits of the TCI identifier TCI1 of the third group of PDSCHs are determined to be 001, and the bits of the TCI identifier TCI3 of the fourth group of PDSCHs are determined to be 011. Then the base station determines that the bit field of the TCI identifier in the DCI is 001010001011 according to the time domain order of the PDSCH. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001, 010, 001 and 011 respectively. And it is determined that the number of TCIs included in each TRP is 2. Then, according to the bit identified by TCI, it is determined that TRP1 corresponds to TCI1 and TCI2. TRP2 corresponds to TCI1 and TCI3. The time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7, then it is determined that the PDSCH in the beam direction of the beam information of TCI1 of TR1 is PDSCH0 and PDSCH1, and the PDSCH in the beam direction of the beam information of TCI2 of TR1 is PDSCH2 and PDSCH3. The PDSCH in the beam direction of the beam information of TCI1 of TR2 is PDSCH4 and PDSCH5, and the PDSCH in the beam direction of the beam information of TCI3 of TR2 is PDSCH6 and PDSCH7.

[0305] Exemplary description 4.2: The beam configuration indication included in different TRPs is a TCI identifier, the number of TCIs included in different TRPs is the same, the target physical shared channel is PDSCH, and the sub-grouping mode is the first non-integer-divisible grouping mode.

[0306] The terminal device receives the second RRC signaling and determines that the number of TCIs included in each TRP in the second RRC signaling is the same, which is 3, and the number of TRPs is 2. The base station determines that the number of PDSCHs corresponding to each TRP is 8, and the number of groups is 3. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PDSCH. The second group number of the second type of group B = NA = 1, 1 group includes PDSCHs. Then, each PDSCH is arranged from most to least according to the time domain sequence of the PDSCH, and the number of PDSCHs of each group corresponding to TRP1 and TRP2 is obtained as C(0)=3, C(1)=3, and C(2)=2. The base station determines that the bit of the TCI identifier TCI1 of the first group of PDSCHs of TRP1 is 001, the bit of the TCI identifier TCI2 of the second group of PDSCHs of TRP1 is 010, and the bit of the TCI identifier TCI3 of the third group of PDSCHs of TRP1 is 011. The base station determines that the bit of the TCI identifier TCI1 of the first group of PDSCHs of TRP2 is 001, the bit of the TCI identifier TCI3 of the second group of PDSCHs of TRP2 is 011, and the bit of the TCI identifier TCI4 of the third group of PDSCHs of TRP2 is 100. Then, the base station determines the bit field of the TCI identifier in the DCI as 001010011001011100 according to the time domain sequence of the PDSCHs. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001, 010, 011, 001, 011 and 100. And it is determined that the number of TCIs included in each TRP is 2. According to the bits of the TCI identifier, it is determined that TRP1 corresponds to TCI1, TCI2 and TCI3. TRP2 corresponds to TCI1, TCI3 and TCI4. The time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH15, then it is determined that the PDSCH in the beam direction of the beam information of TCI1 of TR1 is PDSCH0, PDSCH1 and PDSCH2, and the PDSCH in the beam direction of the beam information of TCI2 of TR1 is PDSCH3, PDSCH4 and PDSCH5. The PDSCH in the beam direction of the beam information of TCI3 of TR1 is PDSCH6 and PDSCH7. The PDSCHs in the beam direction of the beam information of TCI1 of TR2 are PDSCH8, PDSCH9, and PDSCH10, and the PDSCHs in the beam direction of the beam information of TCI3 of TR2 are PDSCH11, PDSCH12, and PDSCH13. The PDSCHs in the beam direction of the beam information of TCI4 of TR2 are PDSCH14 and PDSCH15.

[0307] Exemplary description 4.3: The beam configuration indication included in different TRPs is a TCI identifier, the number of TCIs included in different TRPs is the same, the target physical shared channel is PDSCH, and the sub-grouping method is the second non-integer-divisible grouping method.

[0308] The terminal device receives the second RRC signaling and determines that the number of TCIs included in each TRP in the second RRC signaling is the same, which is 3, and the number of TRPs is 2. The base station determines that the number of PDSCHs corresponding to each TRP is 8, and the number of groups is 3. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PDSCH. The second group number of the second type of group B = NA = 1, 1 group includes PDSCH. Then the PDSCHs of TRP1 and TRP2 are arranged in the order of beam measurement results. The beam measurement results can be determined according to RSRP. The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PDSCHs of TRP1 and TRP2 are respectively: O(0)=0, O(1)=2, O(2)=1, then the number of PDSCHs of each group corresponding to TRP1 and TRP2 are respectively: C(0)=3, C(1)=3, C(2)=2. The base station determines that the bits of the TCI identifier TCI1 of the first group of PDSCHs of TRP1 are 001, determines that the bits of the TCI identifier TCI2 of the second group of PDSCHs of TRP1 are 010, and determines that the bits of the TCI identifier TCI3 of the third group of PDSCHs of TRP1 are 011. The base station determines that the bit of TCI identifier TCI1 of the first group of PDSCH of TRP2 is 001, determines that the bit of TCI identifier TCI3 of the second group of PDSCH of TRP2 is 011, and determines that the bit of TCI identifier TCI4 of the third group of PDSCH of TRP2 is 100. Then the base station determines the bit field of TCI identifier as 001010011001011100 in the DCI according to the time domain order of PDSCH. After receiving the downlink control information, the terminal device parses the bits of TCI identifier as 001, 010, 011, 001, 011 and 100 respectively. And it is determined that the number of TCIs included in each TRP is three. According to the bits of TCI identifier, it is determined that TRP1 corresponds to TCI1, TCI2 and TCI3. TRP2 corresponds to TCI1, TCI3 and TCI4. The time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH15, then it is determined that the PDSCHs in the beam direction of the beam information of TCI1 of TR1 are PDSCH0, PDSCH1 and PDSCH2, and the PDSCHs in the beam direction of the beam information of TCI2 of TR1 are PDSCH3 and PDSCH4. The PDSCHs in the beam direction of the beam information of TCI3 of TR1 are PDSCH5, PDSCH6 and PDSCH7. The PDSCHs in the beam direction of the beam information of TCI1 of TR2 are PDSCH8, PDSCH9 and PDSCH10, and the PDSCHs in the beam direction of the beam information of TCI3 of TR2 are PDSCH11 and PDSCH12. The PDSCHs in the beam direction of the beam information of TCI4 of TR2 are PDSCH13, PDSCH14 and PDSCH15.

[0309] Example 4.4: The beam configuration indication included in different TRPs is a TCI identifier. The number of TCIs included in different TRPs is different. TRP1 includes 3 TCIs, and TRP2 includes 1 TCI. The target physical shared channel is PDSCH, and the sub-grouping method is an integer-divisible grouping method.

[0310] The terminal device receives the second RRC signaling and determines that the number of TCIs included in each TRP in the second RRC signaling is different, TRP1 includes 3 TCIs, and TRP2 includes 1 TCI. The base station determines that the number of PDSCHs is 8 and the number of groups is 4. The sub-grouping method is determined to be an integer grouping method, and the bits of the TCI identifier TCI1 of the first group of PDSCHs are determined to be 001, the bits of the TCI identifier TCI2 of the second group of PDSCHs are determined to be 010, the bits of the TCI identifier TCI3 of the third group of PDSCHs are determined to be 011, and the bits of the TCI identifier TCI4 of the fourth group of PDSCHs are determined to be 100. Then the base station determines that the bit field of the TCI identifier in the DCI is 001010011100 according to the time domain order of the PDSCH. After receiving the downlink control information, the terminal device parses the bits of the TCI identifier to be 001, 010, 011 and 100 respectively. And it is determined that the number of TCIs included in each TRP is two, TRP1 includes 3 TCIs, and TRP2 includes 1 TCI. Then, according to the bits of the TCI identifier, it is determined that TRP1 corresponds to TCI1, TCI2, and TCI2. TRP2 corresponds to TCI4. The time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7, then it is determined that the PDSCH in the beam direction of the beam information of TCI1 of TR1 is PDSCH0 and PDSCH1, and the PDSCH in the beam direction of the beam information of TCI2 of TR1 is PDSCH2 and PDSCH3. The PDSCH in the beam direction of the beam information of TCI3 of TR1 is PDSCH4 and PDSCH5, and the PDSCH in the beam direction of the beam information of TCI4 of TR2 is PDSCH6 and PDSCH7.

[0311] Exemplary description 4.5: The beam configuration indication included in different TRPs is an SRI identifier, the number of SRIs included in different TRPs is the same, TRP1 includes 2 SRIs, TRP2 includes 2 SRIs, the target physical shared channel is PUSCH, and the sub-grouping method is an integer-divisible grouping method.

[0312] The terminal device receives the second RRC signaling, and determines that each TRP in the second RRC signaling includes the same number of SRIs, TRP1 includes 2 SRIs, and TRP2 includes 2 SRIs. The base station determines that the number of PDSCHs is 8 and the number of groups is 4. The sub-grouping method is determined to be an integer grouping method, and the bits of the SRI identifier SRI1 of the first group of PDSCHs are determined to be 0001, the bits of the SRI identifier SRI2 of the second group of PDSCHs are determined to be 0010, the bits of the SRI identifier SRI1 of the third group of PDSCHs are determined to be 0001, and the bits of the SRI identifier SRI3 of the fourth group of PDSCHs are determined to be 0011. Then the base station determines that the bit field of the SRI identifier in the DCI is 0001001000010011 according to the time domain order of the PDSCH. After receiving the downlink control information, the terminal device parses the SRI identifier bits to be 0001, 0010, 0001, and 0011, respectively. And it is determined that the number of SRIs included in each TRP is two. Then, according to the bits of the SRI identifier, it is determined that TRP1 corresponds to SRI1 and SRI2, and TRP2 corresponds to SRI1 and SRI3. The time domain order of PDSCH data transmission is PDSCH0, PDSCH1, PDSCH2, ..., PDSCH7, then it is determined that the PDSCH in the beam direction of the beam information of SRI1 of TR1 is PDSCH0 and PDSCH1, and the PDSCH in the beam direction of the beam information of SRI2 of TR1 is PDSCH2 and PDSCH3. The PDSCH in the beam direction of the beam information of SRI1 of TR2 is PDSCH4 and PDSCH5, and the PDSCH in the beam direction of the beam information of SRI3 of TR2 is PDSCH6 and PDSCH7.

[0313] Exemplary description 4.6: The beam configuration indication included in different TRPs is an SRI identifier, the number of SRIs included in different TRPs is the same, TRP1 includes 3 SRIs, TRP2 includes 3 SRIs, the target physical shared channel is PUSCH, and the sub-grouping mode is the first non-integer-divisible grouping mode.

[0314] The terminal device receives the second RRC signaling and determines that the number of SRIs included in each TRP in the second RRC signaling is the same, which is 3, and the number of TRPs is 2. The base station determines that the number of PUSCHs corresponding to each TRP is 8, and the number of groups is 3. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCHs. Then, the PUSCHs are arranged in order of most to least according to the time domain sequence of the PUSCHs, and the number of PUSCHs in each group corresponding to TRP1 and TRP2 is C(0)=3, C(1)=3, and C(2)=2. The base station determines that the bits of the SRI identifier SRI1 of the first group of PUSCHs of TRP1 are 0001, the bits of the SRI identifier SRI2 of the second group of PUSCHs of TRP1 are 0010, and the bits of the SRI identifier SRI3 of the third group of PUSCHs of TRP1 are 0011. The base station determines that the bits of the SRI identifier SRI1 of the first group of PUSCHs of TRP2 are 0001, the bits of the SRI identifier SRI3 of the second group of PUSCHs of TRP2 are 0011, and the bits of the SRI identifier SRI4 of the third group of PUSCHs of TRP2 are 0100. Then the base station determines the bit field of the SRI identifier in the DCI as 000100100011000100110100 according to the time domain order of PUSCH. After receiving the downlink control information, the terminal device parses the bits of the SRI identifier as 0001, 0010, 0011, 0001, 0011 and 0100. And it is determined that the number of SRIs included in each TRP is two. Then, according to the bits of the SRI identifier, it is determined that TRP1 corresponds to SRI1, SRI2 and SRI3. TRP2 corresponds to SRI1, SRI3 and SRI4. The time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH15, then it is determined that the PUSCHs in the beam direction of the beam information of SRI1 of TR1 are PUSCH0, PUSCH1 and PUSCH2, and the PUSCHs in the beam direction of the beam information of SRI2 of TR1 are PUSCH3, PUSCH4 and PUSCH5. The PUSCHs in the beam direction of the beam information of SRI3 of TR1 are PUSCH6 and PUSCH7. The PUSCHs in the beam direction of the beam information of SRI1 of TR2 are PUSCH8, PUSCH9, PUSCH10, and the PUSCHs in the beam direction of the beam information of SRI3 of TR2 are PUSCH11, PUSCH12, PUSCH13. The PUSCHs in the beam direction of the beam information of SRI4 of TR2 are PUSCH14 and PUSCH15.

[0315] Exemplary description 4.7: The beam configuration indication included in different TRPs is an SRI identifier, and the number of SRIs included in different TRPs is the same. TRP1 includes 3 SRIs, and TRP2 includes 3 SRIs. The target physical shared channel is PUSCH, and the sub-grouping method is the second non-integer-divisible grouping method.

[0316] The terminal device receives the second RRC signaling and determines that the number of SRIs included in each TRP in the second RRC signaling is the same, which is 3, and the number of TRPs is 2. The base station determines that the number of PUSCHs corresponding to each TRP is 8, and the number of groups is 3. The first group number of the first category group is calculated as A=mod(P, N)=2, and the 2 groups contain PUSCH. The second group number of the second type of group B = NA = 1, 1 group includes PUSCH. Then the PUSCHs of TRP1 and TRP2 are arranged in the order of beam measurement results. The beam measurement results can be determined according to RSRP. The larger the RSRP value, the smaller the corresponding O(i) value. Exemplarily, the O(i) values ​​of each group of PUSCHs of TRP1 and TRP2 are respectively: O(0)=0, O(1)=2, O(2)=1, then the number of PUSCHs of each group corresponding to TRP1 and TRP2 are respectively: C(0)=3, C(1)=3, C(2)=2. The base station determines that the bits of SRI identifier SRI1 of the first group of PUSCHs of TRP1 are 0001, determines that the bits of SRI identifier SRI2 of the second group of PUSCHs of TRP1 are 0010, and determines that the bits of SRI identifier SRI3 of the third group of PUSCHs of TRP1 are 0011. The base station determines that the bit of SRI identifier SRI1 of the first group of PUSCH of TRP2 is 0001, determines that the bit of SRI identifier SRI3 of the second group of PUSCH of TRP2 is 0011, and determines that the bit of SRI identifier SRI4 of the third group of PUSCH of TRP2 is 0100. Then the base station determines the bit field of SRI identifier as 000100100011000100110100 in the DCI according to the time domain order of PUSCH. After receiving the downlink control information, the terminal device parses the bits of SRI identifier as 0001, 0010, 0011, 0001, 0011 and 0100. And it is determined that the number of SRIs included in each TRP is three. Then, according to the bits of SRI identifier, it is determined that TRP1 corresponds to SRI1, SRI2 and SRI3. TRP2 corresponds to SRI1, SRI3 and SRI4. The time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH15, then it is determined that the PUSCHs in the beam direction of the beam information of SRI1 of TR1 are PUSCH0, PUSCH1 and PUSCH2, and the PUSCHs in the beam direction of the beam information of SRI2 of TR1 are PUSCH3 and PUSCH4. The PUSCHs in the beam direction of the beam information of SRI3 of TR1 are PUSCH5, PUSCH6 and PUSCH7. The PUSCHs in the beam direction of the beam information of SRI1 of TR2 are PUSCH8, PUSCH9, PUSCH10, and the PUSCHs in the beam direction of the beam information of SRI3 of TR2 are PUSCH11 and PUSCH12. The PUSCHs in the beam direction of the beam information of SRI4 of TR2 are PUSCH13, PUSCH14 and PUSCH15.

[0317] Exemplary explanation 4.8: The beam configuration indication included in different TRPs is an SRI identifier. The number of SRIs included in different TRPs is different. TRP1 includes 3 SRIs, and TRP2 includes 1 SRI. The target physical shared channel is PUSCH, and the sub-grouping method is an integer-divisible grouping method.

[0318] The terminal device receives the second RRC signaling, and determines that the number of SRIs included in each TRP in the second RRC signaling is different, TRP1 includes 3 SRIs, and TRP2 includes 1 SRI. The base station determines that the number of PUSCHs is 8 and the number of groups is 4. The sub-grouping method is determined to be an integer grouping method, and the bits of the SRI identifier SRI1 of the first group of PUSCHs are determined to be 0001, the bits of the SRI identifier SRI2 of the second group of PUSCHs are determined to be 0010, the bits of the SRI identifier SRI3 of the third group of PUSCHs are determined to be 0011, and the bits of the SRI identifier SRI4 of the fourth group of PUSCHs are determined to be 0100. Then the base station determines the bit field of the SRI identifier in the DCI to be 0001001000110100 according to the time domain order of PUSCH. After receiving the downlink control information, the terminal device parses the SRI identifier bits to be 0001, 0010, 0011, and 0100, respectively. And it is determined that the number of SRIs included in each TRP is two. Then, according to the bits of the SRI identifier, it is determined that TRP1 corresponds to SRI1, SRI2, and SRI3. TRP2 corresponds to SRI4. The time domain order of PUSCH data transmission is PUSCH0, PUSCH1, PUSCH2, ..., PUSCH7, then it is determined that the PUSCH in the beam direction of the beam information of SRI1 of TR1 is PUSCH0 and PUSCH1, and the PUSCH in the beam direction of the beam information of SRI2 of TR1 is PUSCH2 and PUSCH3. The PUSCH in the beam direction of the beam information of SRI3 of TR1 is PUSCH4 and PUSCH5, and the PUSCH in the beam direction of the beam information of SRI4 of TR2 is PUSCH6 and PUSCH7.

[0319] The beam indication method provided in this embodiment includes multiple transmission receiving points TRP between the base station and the terminal device. Before sending the downlink control information to the terminal device, it also includes receiving a second RRC signaling sent by the wireless resource control layer, the second RRC signaling including the number of beam configuration indications included in the multiple TRPs; sending a second RRC signaling to the terminal device, the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP according to the number of beam configuration indications included in the multiple TRPs and the downlink control information. In the case where multiple transmission receiving points TRP are included between the base station and the terminal device, by sending the number of beam configuration indications included in the multiple TRPs to the terminal device, the terminal device can accurately determine the target physical shared channel in each beam direction between the TRP according to the number of beam configuration indications included in the multiple TRPs and the downlink control information.

[0320] Embodiment 5

[0321] Fig.14 A schematic diagram of a flow chart of a beam indication method provided in another embodiment of the present application is shown in FIG. Fig.14 As shown, the execution subject of the beam indication method provided in this embodiment is a beam indication device, and the beam indication device is located in the terminal device. Then the beam indication method provided in this embodiment includes the following steps:

[0322] Step 501: Receive downlink control information sent by a base station.

[0323] The downlink control information is generated according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels and the time domain sequence.

[0324] In this embodiment, the beam configuration indication may be different according to the target physical shared channel. If the target physical shared channel is PDSCH, the beam configuration indication is a TCI identifier. If the target physical shared channel is PUSCH, the beam configuration indication is a TCI identifier or an SRI identifier. If the beam configuration indication is a TCI identifier, the beam configuration indication corresponding to each group of target physical shared channels may be represented by 3 bits. If the beam configuration indication is an SRI identifier, if there is a code book, the beam configuration indication corresponding to each group of target physical shared channels may be represented by 2 bits, and if there is no code book, the beam configuration indication corresponding to each group of target physical shared channels may be represented by 4 bits.

[0325] Step 502: parse the downlink control information to obtain the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and the time domain order of data transmission of the target physical shared channels.

[0326] In this embodiment, the downlink control information includes a bit field of the identifier of the beam configuration indication corresponding to each group of target physical shared channels arranged in the time domain order of data transmission of the target physical shared channels, so the downlink control information is parsed. If the beam configuration indication is a TCI identifier, every 3 bits in the bit field are determined as bits of the TCI identifier of a group of target physical shared channels. Then the TCI identifier corresponding to each group of target physical shared channels is parsed. If the beam configuration indication is an SRI identifier, and it is determined that the bit field is generated by default according to the codebook situation, every 2 bits in the bit field are determined as bits of the TCI identifier of a group of target physical shared channels. Then the SRI identifier corresponding to each group of target physical shared channels is parsed; if the bit field is generated by default according to the codebook situation, every 4 bits in the bit field are determined as bits of the TCI identifier of a group of target physical shared channels. Then the SRI identifier corresponding to each group of target physical shared channels is parsed.

[0327] In addition, the number of target physical shared channels is included in the downlink control information, so the number of target physical shared channels can be parsed. In addition, when generating the downlink control information, the bit field of the beam configuration indication is generated according to the time domain order of the target physical shared channels, so the time domain order of the parsed target physical shared channels for data transmission is arranged from first to last.

[0328] Step 503: Determine the grouping information of the target physical shared channel according to the downlink control information.

[0329] In this embodiment, after parsing the beam configuration indication corresponding to each group of target physical shared channels, the number of beam configuration indications can be determined, and then the number of groups of target physical channels can be determined. Then, according to whether the sub-grouping mode identifier sent by the base station is received, it can be determined whether the grouping mode is a physical layer default grouping mode or a high-layer configuration grouping mode.

[0330] If it is the default grouping mode of the physical layer, determine whether the number of target physical shared channels and the number of groups are in an integer divisible relationship. If they are in an integer divisible relationship, determine the sub-grouping mode as an integer divisible grouping mode. If they are in a non-integer divisible relationship, determine the first non-integer divisible grouping mode or the second non-integer divisible grouping mode according to the non-integer divisible grouping mode preset by the physical layer. Then determine the grouping information according to the sub-grouping mode.

[0331] If the high-layer configuration grouping mode is used, the corresponding sub-grouping mode is determined in a pre-stored table according to the sub-grouping mode identifier sent by the base station, and the grouping information is determined according to the number of target physical shared channels and the number of groups.

[0332] Step 504: determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information.

[0333] Optionally, each beam direction is first determined according to the beam configuration indication corresponding to each group of target physical shared channels, and then the target physical shared channels of the corresponding group in each beam direction are determined according to the number, time domain order and grouping information of the target physical shared channels.

[0334] Specifically, in this embodiment, after the beam configuration indication corresponding to each group of target physical shared channels is determined, the beam information corresponding to each group of target physical shared channels is determined according to the mapping relationship between the pre-configured beam information and the beam configuration indication, and the beam direction corresponding to each group of target physical shared channels is determined according to the beam information corresponding to each group of target physical shared channels. The number of target physical shared channels corresponding to each group of target physical shared channels and the specific target physical shared channels are determined according to the number of target physical shared channels, grouping information, and time domain sequence, and then the target physical shared channels of the corresponding groups in each beam direction are determined.

[0335] Step 505: Transmit data on the corresponding group target physical shared channel in each beam direction.

[0336] Optionally, in this embodiment, the target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI, then step 505 includes:

[0337] The target physical shared channel of the corresponding group in each beam direction receives data sent by the base station.

[0338] Specifically, if the target physical shared channel is PDSCH, it means that the terminal device needs to receive data sent by the base station through at least one group of PDSCH, then the corresponding group of PDSCH in each beam direction receives the data sent by the base station in time domain order.

[0339] Optionally, in this embodiment, the target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI;

[0340] Then, step 505 includes:

[0341] The target physical shared channel of the corresponding group sends data to the base station in each beam direction.

[0342] Specifically, if the target physical shared channel is PUSCH, it means that the terminal device needs to send data to the base station through at least one group of PUSCH, then the corresponding group of PUSCH in each beam direction sends data to the base station in time domain order.

[0343] The beam indication method provided in this embodiment receives downlink control information sent by a base station; parses the downlink control information to obtain the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and the time domain order of data transmission of the target physical shared channels; determines the grouping information of the target physical shared channels according to the downlink control information; determines the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order, and the grouping information; transmits data in the corresponding group of target physical shared channels in each beam direction. Since the same beam configuration indication can represent the beam configuration of a group of target physical shared channels in the downlink control information, the number of bits of the beam configuration indication in the downlink control information can be effectively reduced, thereby effectively reducing the transmission resources of the downlink control information.

[0344] Embodiment 6

[0345] Fig.15 A schematic diagram of the structure of a beam pointing device provided in an embodiment of the present application is shown in FIG. Fig.15 As shown, the beam indicating device provided in this embodiment is located in a base station. Then the beam indicating device provided in this embodiment includes: a transceiver 600, which is used to receive and send data under the control of a processor 610.

[0346] Among them, Fig.15 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 610 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 600 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and the like. The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 610 when performing operations.

[0347] The processor 610 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0348] In this embodiment, the memory 620 is used to store a computer program; the transceiver 600 is used to send and receive data under the control of the processor 610; the processor 610 is used to read the computer program in the memory and perform the following operations:

[0349] Determine the grouping information of the target physical shared channel between the base station and the terminal device; determine the time domain order of data transmission of the target physical shared channel; determine the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain order; send the downlink control information to the terminal device so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0350] Optionally, the processor 610 is configured to determine the grouping information of the target physical shared channel between the base station and the terminal device, specifically including:

[0351] Determine a grouping method of a target physical shared channel between a base station and a terminal device; and determine corresponding grouping information according to the grouping method.

[0352] Optionally, the grouping mode is a default grouping mode of the physical layer; the processor 610 is configured to determine corresponding grouping information according to the grouping mode, specifically including:

[0353] Determine the number of target physical shared channels and the number of groups; determine a sub-grouping method according to the number of target physical shared channels and the number of groups; and determine corresponding grouping information according to the sub-grouping method.

[0354] Optionally, the processor 610 is configured to determine the sub-grouping mode according to the number of target physical shared channels and the number of groups, specifically including:

[0355] If it is determined that the number of target physical shared channels and the number of groups are in an integer-divisible relationship, then the sub-grouping method is determined to be an integer-divisible grouping method; if it is determined that the number of target physical shared channels and the number of groups are in a non-integer-divisible relationship, then the preset non-integer-divisible grouping method is obtained, and the preset non-integer-divisible grouping method is determined as the sub-grouping method, and the preset non-integer-divisible grouping method is the first non-integer-divisible grouping method or the second non-integer-divisible grouping method.

[0356] Optionally, the sub-grouping mode is a divisible grouping mode; the processor 610 is configured to determine corresponding grouping information according to the sub-grouping mode, specifically including:

[0357] The number of target physical shared channels and the number of groups in each group are determined according to an integer-divisible grouping method; and the number of target physical shared channels and the number of groups in each group are determined as corresponding grouping information.

[0358] Optionally, the sub-grouping mode is a preset non-divisible grouping mode, and the processor 610 is configured to determine corresponding grouping information according to the sub-grouping mode, specifically including:

[0359] Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group; if it is determined that the preset non-integer grouping method is the first non-integer grouping method, obtain the order of time domain arrangement of the target physical shared channels, and determine the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels as the corresponding grouping information; if it is determined that the preset non-integer grouping method is the second non-integer grouping method, determine the order in which the target physical shared channels of each group are arranged according to the beam measurement results, and determine the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which the target physical shared channels of each group are arranged according to the beam measurement results as the corresponding grouping information.

[0360] Optionally, the processor 610 is configured to calculate the number of groups of each type and the number of target physical shared channels of each group in the corresponding group, specifically including:

[0361] Perform a modulus operation on the number of target physical shared channels and the number of groups, and determine the modulus result as the first group number of target physical shared channels of the first category group; perform a difference operation on the number of groups and the first group number, and determine the difference result as the second group number of target physical shared channels of the second category group; perform a ceiling operation on the number of target physical shared channels and the number of groups, and determine the result of the ceiling operation as the number of target physical shared channels of each first category group; perform a floor operation on the number of target physical shared channels and the number of groups, and determine the result of the floor operation as the number of target physical shared channels of each second category group.

[0362] Optionally, the grouping mode is a high-level configuration grouping mode; the processor 610 is configured to determine corresponding grouping information according to the grouping mode, specifically including:

[0363] Receive a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer; parse the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier; and determine corresponding grouping information according to the sub-grouping mode identifier.

[0364] Optionally, there are multiple transmission receiving points TRP between the base station and the terminal device.

[0365] The processor 610 is further configured to receive a second RRC signaling sent by the radio resource control layer before sending the downlink control information to the terminal device, wherein the second RRC signaling includes the number of beam configuration indications included in the multiple TRPs. The second RRC signaling is sent to the terminal device, and the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP according to the number of beam configuration indications included in the multiple TRPs and the downlink control information.

[0366] Optionally, the processor 610 is configured to determine, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels, specifically including:

[0367] If the target physical shared channel is determined to be a target physical downlink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI according to the grouping information, and the TCI identifier corresponding to each group of target physical shared channels is determined; if the target physical shared channel is determined to be a target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

[0368] Optionally, the processor 610 is configured to generate downlink control information according to each beam configuration indication, the number of target physical shared channels, and the time domain sequence, specifically including:

[0369] Determine the bits of the TCI identifier or SRI identifier corresponding to each group of target physical shared channels; splice the bits of the TCI identifier or SRI identifier corresponding to each group of target physical shared channels in a time domain order to form a bit domain; generate downlink control information according to the bit domain and the number of target physical shared channels.

[0370] Embodiment 7

[0371] Fig.16 A schematic diagram of the structure of a beam indicating device provided in another embodiment of the present application is shown in FIG. Fig.16As shown, the beam indication device provided in this embodiment is located in the terminal device. Then the beam indication device provided in this embodiment includes: a transceiver 700, which is used to receive and send data under the control of a processor 710.

[0372] Among them, Fig.16 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 710 and various circuits of memory represented by memory 720 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 700 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 730 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0373] The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0374] Optionally, the processor 710 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0375] The processor calls the computer program stored in the memory to execute any method provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0376] In this embodiment, the memory 720 is used to store a computer program; the transceiver 700 is used to send and receive data under the control of the processor 710; the processor 710 is used to read the computer program in the memory and perform the following operations:

[0377] Receive downlink control information sent by the base station; parse the downlink control information to obtain the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels and the time domain order of data transmission of the target physical shared channels; determine the grouping information of the target physical shared channels according to the downlink control information; determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information; transmit data in the corresponding group of target physical shared channels in each beam direction.

[0378] Optionally, the processor 710 is configured to determine, according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order, and the grouping information, a corresponding group of target physical shared channels in each beam direction, specifically including:

[0379] Each beam direction is determined according to the beam configuration indication corresponding to each group of target physical shared channels; and the target physical shared channels of the corresponding group in each beam direction are determined according to the number, time domain sequence and grouping information of the target physical shared channels.

[0380] Optionally, the target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI; the processor 710 is configured to transmit data in the target physical shared channel of the corresponding group in each beam direction, specifically including:

[0381] The target physical shared channel of the corresponding group in each beam direction receives data sent by the base station.

[0382] Optionally, the target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI; the processor 710 is configured to transmit data in the corresponding group target physical shared channel in each beam direction, specifically including:

[0383] The target physical shared channel of the corresponding group sends data to the base station in each beam direction.

[0384] It should be noted here that the above-mentioned device provided in the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0385] Embodiment 8

[0386] Fig.17 A structural diagram of a beam indicating device provided in another embodiment of the present application is shown as follows: Fig.17As shown, the beam indication device provided in this embodiment is located in a base station, and the beam indication device 800 provided in this embodiment includes: a determination unit 801, a generation unit 802, and a sending unit 803.

[0387] Among them, the determination unit 801 is used to determine the grouping information of the target physical shared channel between the base station and the terminal device, and determine the time domain order of the target physical shared channel for data transmission. The generation unit 802 is used to determine the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain order. The sending unit 803 is used to send the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

[0388] Optionally, when determining the grouping information of the target physical shared channel between the base station and the terminal device, the determination unit 801 is specifically used to: determine a grouping method of the target physical shared channel between the base station and the terminal device; and determine corresponding grouping information according to the grouping method.

[0389] Optionally, the grouping mode is a default grouping mode of the physical layer; when the determining unit 801 determines the corresponding grouping information according to the grouping mode, it is specifically used to:

[0390] Determine the number of target physical shared channels and the number of groups; determine a sub-grouping method according to the number of target physical shared channels and the number of groups; and determine corresponding grouping information according to the sub-grouping method.

[0391] Optionally, when determining the sub-grouping mode according to the number of target physical shared channels and the number of groups, the determining unit 801 is specifically configured to:

[0392] If it is determined that the number of target physical shared channels and the number of groups are in an integer-divisible relationship, then the sub-grouping method is determined to be an integer-divisible grouping method; if it is determined that the number of target physical shared channels and the number of groups are in a non-integer-divisible relationship, then the preset non-integer-divisible grouping method is obtained, and the preset non-integer-divisible grouping method is determined as the sub-grouping method, and the preset non-integer-divisible grouping method is the first non-integer-divisible grouping method or the second non-integer-divisible grouping method.

[0393] Optionally, the sub-grouping mode is a divisible grouping mode, and the determining unit 801, when determining the corresponding grouping information according to the sub-grouping mode, is specifically configured to:

[0394] The number of target physical shared channels and the number of groups in each group are determined according to an integer-divisible grouping method; and the number of target physical shared channels and the number of groups in each group are determined as corresponding grouping information.

[0395] Optionally, the sub-grouping mode is a preset non-divisible grouping mode, and the determining unit 801, when determining the corresponding grouping information according to the sub-grouping mode, is specifically configured to:

[0396] Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group; if it is determined that the preset non-integer grouping method is the first non-integer grouping method, obtain the order of time domain arrangement of the target physical shared channels, and determine the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels as the corresponding grouping information; if it is determined that the preset non-integer grouping method is the second non-integer grouping method, determine the order in which the target physical shared channels of each group are arranged according to the beam measurement results, and determine the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which the target physical shared channels of each group are arranged according to the beam measurement results as the corresponding grouping information.

[0397] Optionally, the determining unit 801, when calculating the number of groups of each type and the number of target physical shared channels of each group in the corresponding group, is specifically configured to:

[0398] Perform a modulus operation on the number of target physical shared channels and the number of groups, and determine the modulus result as the first group number of target physical shared channels of the first category group; perform a difference operation on the number of groups and the first group number, and determine the difference result as the second group number of target physical shared channels of the second category group; perform a ceiling operation on the number of target physical shared channels and the number of groups, and determine the result of the ceiling operation as the number of target physical shared channels of each first category group; perform a floor operation on the number of target physical shared channels and the number of groups, and determine the result of the floor operation as the number of target physical shared channels of each second category group.

[0399] Optionally, the grouping mode is a high-level configuration grouping mode; when the determining unit 801 determines the corresponding grouping information according to the grouping mode, it is specifically used to:

[0400] Receive a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer; parse the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier; and determine corresponding grouping information according to the sub-grouping mode identifier.

[0401] Optionally, a plurality of transmission reception points TRP are included between the base station and the terminal device, and further include:

[0402] The receiving unit is used to receive a second RRC signaling sent by the radio resource control layer, wherein the second RRC signaling includes the number of beam configuration indications included in the multiple TRPs. The sending unit 803 is also used to send a second RRC signaling to the terminal device, wherein the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRPs according to the number of beam configuration indications included in the multiple TRPs and the downlink control information.

[0403] Optionally, when the generating unit 802 determines the beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, it is specifically configured to:

[0404] If the target physical shared channel is determined to be a target physical downlink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI according to the grouping information, and the TCI identifier corresponding to each group of target physical shared channels is determined; if the target physical shared channel is determined to be a target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

[0405] Optionally, when the generating unit 802 generates the downlink control information according to each beam configuration indication, the number of target physical shared channels and the time domain sequence, it is specifically configured to:

[0406] Determine the bits of the TCI identifier or SRI identifier corresponding to each group of target physical shared channels; splice the bits of the TCI identifier or SRI identifier corresponding to each group of target physical shared channels in a time domain order to form a bit domain; generate downlink control information according to the bit domain and the number of target physical shared channels.

[0407] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0408] Embodiment 9

[0409] Fig.18 A schematic diagram of the structure of a beam indicating device provided in yet another embodiment of the present application is shown in FIG. Fig.18 As shown, the beam indication device provided in this embodiment is located in the terminal device, and the beam indication device 900 provided in this embodiment includes: a receiving unit 901, a parsing unit 902, a determining unit 903 and a transmitting unit 904.

[0410] Among them, the receiving unit 901 is used to receive the downlink control information sent by the base station. The parsing unit 902 is used to parse the downlink control information to obtain the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels and the time domain order of the target physical shared channels for data transmission. The determination unit 903 is used to determine the grouping information of the target physical shared channels according to the downlink control information. The determination unit 903 is also used to determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information. The transmission unit 904 is used to transmit data in the corresponding group of target physical shared channels in each beam direction.

[0411] Optionally, the determining unit 903, when determining the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information, is specifically used to:

[0412] Each beam direction is determined according to the beam configuration indication corresponding to each group of target physical shared channels; and the target physical shared channels of the corresponding group in each beam direction are determined according to the number, time domain sequence and grouping information of the target physical shared channels.

[0413] Optionally, the target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI; the transmission unit 904 is specifically configured to:

[0414] The target physical shared channel of the corresponding group in each beam direction receives data sent by the base station.

[0415] Optionally, the target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI; the transmission unit 904 is specifically configured to:

[0416] The target physical shared channel of the corresponding group sends data to the base station in each beam direction.

[0417] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0418] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0419] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0420] Embodiment 10

[0421] Embodiment 10 of the present application provides a processor-readable storage medium, which stores a computer program. The computer program is used to enable a processor to execute the beam indication method provided by any one of embodiments 1 to 5.

[0422] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSDs)), etc.

[0423] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0424] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0425] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0426] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0427] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A beam indication method, characterized in that: The method is applied to a base station, and the method includes: Determine grouping information of a target physical shared channel between a base station and a terminal device; Determining a time domain order for the target physical shared channel to perform data transmission; Determine a beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indications, the number of target physical shared channels and the time domain sequence; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; The downlink control information is sent to a terminal device, so that the terminal device determines grouping information according to the downlink control information, and transmits data on a target physical shared channel in a corresponding beam direction according to the downlink control information and the grouping information.

2. The method according to claim 1, characterized in that The determining of grouping information of a target physical shared channel between a base station and a terminal device includes: Determine a grouping method of a target physical shared channel between a base station and a terminal device; Corresponding grouping information is determined according to the grouping method.

3. The method according to claim 2, characterized in that The grouping mode is a default grouping mode of the physical layer; The determining corresponding grouping information according to the grouping method includes: Determining the number of target physical shared channels and the number of groups; Determining a sub-grouping mode according to the number of the target physical shared channels and the number of groups; The corresponding grouping information is determined according to the sub-grouping method.

4. The method according to claim 3, characterized in that The determining the sub-grouping mode according to the number of the target physical shared channels and the number of groups includes: If it is determined that the number of target physical shared channels is in an integer divisible relationship with the number of groups, determining the sub-grouping mode to be an integer divisible grouping mode; If it is determined that the number of target physical shared channels is in a non-divisible relationship with the number of groups, a preset non-divisible grouping method is obtained, and the preset non-divisible grouping method is determined as a sub-grouping method, and the preset non-divisible grouping method is a first non-divisible grouping method or a second non-divisible grouping method.

5. The method according to claim 4, characterized in that The sub-grouping method is the divisible grouping method, and the determining corresponding grouping information according to the sub-grouping method includes: Determine the number of target physical shared channels and the number of groups in each group according to the integer-divisible grouping method; The number of target physical shared channels in each group and the number of groups are determined as corresponding grouping information.

6. The method according to claim 4, characterized in that The sub-grouping method is the preset non-divisible grouping method, and the determining corresponding grouping information according to the sub-grouping method includes: Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group; If it is determined that the preset non-integer-divisible grouping mode is the first non-integer-divisible grouping mode, the order of time domain arrangement of the target physical shared channels is obtained, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels are determined as corresponding grouping information; If the preset non-divisible grouping method is determined to be the second non-divisible grouping method, the order in which each group of target physical shared channels is arranged according to the beam measurement results is determined, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results are determined as the corresponding grouping information.

7. The method according to claim 6, characterized in that The calculating the number of groups of each type and the number of target physical shared channels of each group in the corresponding group includes: Performing a modulo operation on the number of target physical shared channels and the number of groups, and determining the modulo result as a first group number of target physical shared channels of a first group; Performing a difference operation on the number of groups and the first group number, and determining the difference result as a second group number of target physical shared channels of the second group; Performing a round-up operation on the number of target physical shared channels and the number of groups, and determining the round-up operation result as the target number of physical shared channels for each first-category group; A round-down operation is performed on the number of target physical shared channels and the number of groups, and a result of the round-down operation is determined as the number of target physical shared channels for each second type group.

8. The method according to claim 2, characterized in that: The grouping method is a high-level configuration grouping method; The determining corresponding grouping information according to the grouping method includes: Receiving a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer; Parsing the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier; The corresponding grouping information is determined according to the sub-grouping mode identifier.

9. The method according to any one of claims 1 to 8, characterized in that: There are multiple transmission reception points TRP between the base station and the terminal device, and before sending the downlink control information to the terminal device, it also includes: Receiving a second RRC signaling sent by the radio resource control layer, wherein the second RRC signaling includes a number of beam configuration indications included in the plurality of TRPs; The second RRC signaling is sent to the terminal device, and the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP based on the number of beam configuration indications included in multiple TRPs and the downlink control information.

10. The method according to claim 1, characterized in that The determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels includes: If it is determined that the target physical shared channel is a target physical downlink shared channel, determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels as a transmission configuration indication TCI, and determining a TCI identifier corresponding to each group of target physical shared channels; If the target physical shared channel is determined to be the target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as the transmission configuration indication TCI or the uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

11. The method according to claim 10, characterized in that The generating downlink control information according to each of the beam configuration indications, the number of target physical shared channels and the time domain sequence includes: Determine the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels; The bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels are concatenated according to the time domain order to form a bit domain; Downlink control information is generated according to the bit field and the number of the target physical shared channels.

12. A beam indication method, characterized in that: The method is applied to a terminal device, and the method comprises: Receiving downlink control information sent by a base station; Parsing the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission; Determining grouping information of a target physical shared channel according to the downlink control information; Determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; Data is transmitted on the corresponding group target physical shared channel in each beam direction.

13. The method according to claim 12, characterized in that The determining, according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain sequence and the grouping information, the corresponding group of target physical shared channels in each beam direction includes: Determine each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels; The target physical shared channels of the corresponding groups in each beam direction are determined according to the number of the target physical shared channels, the time domain order and the grouping information.

14. The method according to claim 13, characterized in that The target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI; The transmitting data in the physical shared channel corresponding to the group target in each beam direction includes: The target physical shared channel of the corresponding group receives data sent by the base station in each beam direction.

15. The method according to claim 13, characterized in that The target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI; The transmitting data in the physical shared channel corresponding to the group target in each beam direction includes: Data is sent to the base station on the corresponding group target physical shared channel in each beam direction.

16. A beam pointing device, characterized in that: The device is located in a base station and includes a memory, a transceiver, and a processor: a memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Determine grouping information of a target physical shared channel between a base station and a terminal device; Determining a time domain order for the target physical shared channel to perform data transmission; Determine a beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indications, the number of target physical shared channels and the time domain sequence; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; The downlink control information is sent to a terminal device, so that the terminal device determines grouping information according to the downlink control information, and transmits data on a target physical shared channel in a corresponding beam direction according to the downlink control information and the grouping information.

17. The device according to claim 16, characterized in that The processor, when used to determine the grouping information of the target physical shared channel between the base station and the terminal device, specifically includes: Determine a grouping method of a target physical shared channel between a base station and a terminal device; Corresponding grouping information is determined according to the grouping method.

18. The device according to claim 17, characterized in that The grouping mode is a default grouping mode of the physical layer; The processor, when used to determine corresponding grouping information according to the grouping method, specifically includes: Determining the number of target physical shared channels and the number of groups; Determining a sub-grouping mode according to the number of the target physical shared channels and the number of groups; The corresponding grouping information is determined according to the sub-grouping method.

19. The device according to claim 18, characterized in that The processor is configured to determine the sub-grouping mode according to the number of the target physical shared channels and the number of groups, specifically including: If it is determined that the number of target physical shared channels is in an integer divisible relationship with the number of groups, determining the sub-grouping mode to be an integer divisible grouping mode; If it is determined that the number of target physical shared channels is in a non-divisible relationship with the number of groups, a preset non-divisible grouping method is obtained, and the preset non-divisible grouping method is determined as a sub-grouping method, and the preset non-divisible grouping method is a first non-divisible grouping method or a second non-divisible grouping method.

20. The device according to claim 19, characterized in that The sub-grouping method is the divisible grouping method; The processor, when used to determine corresponding group information according to the sub-grouping method, specifically includes: Determine the number of target physical shared channels and the number of groups in each group according to the integer-divisible grouping method; The number of target physical shared channels in each group and the number of groups are determined as corresponding grouping information.

21. The device according to claim 19, characterized in that The sub-grouping mode is the preset non-divisible grouping mode, and the processor is used to determine the corresponding grouping information according to the sub-grouping mode, specifically including: Calculate the number of groups in each category and the number of target physical shared channels in each group in the corresponding group; If it is determined that the preset non-integer-divisible grouping mode is the first non-integer-divisible grouping mode, the order of time domain arrangement of the target physical shared channels is obtained, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order of time domain arrangement of the target physical shared channels are determined as corresponding grouping information; If the preset non-divisible grouping method is determined to be the second non-divisible grouping method, the order in which each group of target physical shared channels is arranged according to the beam measurement results is determined, and the number of groups in each category, the number of target physical shared channels in each group in the corresponding group, and the order in which each group of target physical shared channels is arranged according to the beam measurement results are determined as the corresponding grouping information.

22. The device according to claim 21, characterized in that The processor is used to calculate the number of groups of each type and the number of target physical shared channels of each group in the corresponding group, specifically including: Performing a modulo operation on the number of target physical shared channels and the number of groups, and determining the modulo result as a first group number of target physical shared channels of a first group; Performing a difference operation on the number of groups and the first group number, and determining the difference result as a second group number of target physical shared channels of the second group; Performing a round-up operation on the number of target physical shared channels and the number of groups, and determining the round-up operation result as the target number of physical shared channels for each first-category group; A round-down operation is performed on the number of target physical shared channels and the number of groups, and a result of the round-down operation is determined as the number of target physical shared channels for each second type group.

23. The device according to claim 17, characterized in that The grouping method is a high-level configuration grouping method; The processor, when used to determine corresponding grouping information according to the grouping method, specifically includes: Receiving a first RRC signaling sent by a radio resource control layer or a control element sent by a medium access control layer; Parsing the first RRC signaling or the control element to obtain a corresponding sub-grouping mode identifier; The corresponding grouping information is determined according to the sub-grouping mode identifier.

24. The device according to any one of claims 16 to 23, characterized in that There are multiple transmission reception points TRP between the base station and the terminal device; The processor is further configured to receive, before sending the downlink control information to the terminal device, a second RRC signaling sent by a radio resource control layer, wherein the second RRC signaling includes the number of beam configuration indications included in the plurality of TRPs; The second RRC signaling is sent to the terminal device, and the second RRC signaling is used to instruct the terminal device to determine the target physical shared channel in each beam direction between the TRP based on the number of beam configuration indications included in multiple TRPs and the downlink control information.

25. The device according to claim 16, characterized in that The processor is configured to determine, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels, specifically including: If it is determined that the target physical shared channel is a target physical downlink shared channel, determining, according to the grouping information, a beam configuration indication corresponding to each group of target physical shared channels as a transmission configuration indication TCI, and determining a TCI identifier corresponding to each group of target physical shared channels; If the target physical shared channel is determined to be the target physical uplink shared channel, the beam configuration indication corresponding to each group of target physical shared channels is determined as the transmission configuration indication TCI or the uplink sounding reference signal resource indication SRI according to the grouping information, and the TCI identifier or SRI identifier corresponding to each group of target physical shared channels is determined.

26. The device according to claim 25, characterized in that The processor is configured to generate downlink control information according to each of the beam configuration indications, the number of target physical shared channels, and the time domain sequence, specifically including: Determine the bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels; The bits of the TCI identifier or the SRI identifier corresponding to each group of target physical shared channels are concatenated according to the time domain order to form a bit domain; Downlink control information is generated according to the bit field and the number of the target physical shared channels.

27. A beam pointing device, characterized in that: The device is located in a terminal device, and includes a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving downlink control information sent by a base station; Parsing the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission; Determining grouping information of a target physical shared channel according to the downlink control information; Determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order and the grouping information; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; Data is transmitted on the corresponding group target physical shared channel in each beam direction.

28. The device according to claim 27, characterized in that The processor is configured to determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain sequence, and the grouping information, specifically including: Determine each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels; The target physical shared channels of the corresponding groups in each beam direction are determined according to the number of the target physical shared channels, the time domain order and the grouping information.

29. The device according to claim 28, characterized in that The target physical shared channel is a target physical downlink shared channel, and the beam configuration indication is a transmission configuration indication TCI; The processor is used to transmit data in the corresponding group target physical shared channel in each beam direction, specifically including: The target physical shared channel of the corresponding group receives data sent by the base station in each beam direction.

30. The device according to claim 28, characterized in that The target physical shared channel is a target physical uplink shared channel, and the beam configuration indication is a transmission configuration indication TCI or an uplink sounding reference signal resource indication SRI; The processor is used to transmit data in the corresponding group target physical shared channel in each beam direction, specifically including: Data is sent to the base station on the corresponding group target physical shared channel in each beam direction.

31. A beam pointing device, characterized in that: The device is located in a base station, and includes: A determination unit, configured to determine grouping information of a target physical shared channel between a base station and a terminal device, and determine a time domain order for data transmission of the target physical shared channel; A generating unit, configured to determine a beam configuration indication corresponding to each group of target physical shared channels according to the grouping information, and generate downlink control information according to each of the beam configuration indications, the number of target physical shared channels and the time domain sequence; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; The sending unit is used to send the downlink control information to the terminal device, so that the terminal device determines the grouping information according to the downlink control information, and transmits data on the target physical shared channel in the corresponding beam direction according to the downlink control information and the grouping information.

32. A beam pointing device, characterized in that: The device is located in a terminal device, and includes: A receiving unit, configured to receive downlink control information sent by a base station; A parsing unit, configured to parse the downlink control information to obtain a beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, and a time domain order for the target physical shared channels to perform data transmission; a determining unit, configured to determine grouping information of a target physical shared channel according to the downlink control information; The determination unit is further configured to determine the corresponding group of target physical shared channels in each beam direction according to the beam configuration indication corresponding to each group of target physical shared channels, the number of target physical shared channels, the time domain order, and the grouping information; wherein the beam configuration indication is an SRI identifier or a TCI identifier; the same beam configuration indication indicates the beam configuration of a group of target physical shared channels; The transmission unit is used to transmit data on the physical shared channel of the corresponding group target in each beam direction.

33. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 15.

34. A computer program product comprising a computer program, characterized in that The computer program is used to cause a processor to execute the method according to any one of claims 1 to 15.

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