Beam indication method, apparatus and communication device

Abstract

The present disclosure provides a beam indication method, apparatus and communication device, belonging to the field of wireless communication technologies. Among them, the method includes: sending, by a network device, first indication information for indicating a target common beam to a UE, so that after receiving the first indication information sent by the network device, the UE communicates and transmits with the network device using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technologies, and in particular, to a beam indication method, apparatus, and communication device. Background Art

[0002] In a wireless communication system, the beams used for each channel are independently indicated. For example, the physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), physical uplink control channel (PUCCH), and physical uplink shared channel (PUSCH) etc. need to respectively indicate their respective beams. This beam indication method results in a large signaling overhead for beam indication. Summary of the Invention

[0003] The present disclosure provides a beam indication method, apparatus, and communication device.

[0004] A beam indication method according to an embodiment of one aspect of the present disclosure, which is applied to a user equipment (UE), includes:

[0005] Obtaining first indication information, where the first indication information is used to indicate a target common beam;

[0006] Performing at least two communication transmissions with a network device by using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0007] Optionally, the first indication information includes a target common transmission configuration indication (TCI) state index or an index combination.

[0008] Optionally, the target common TCI state index corresponds to a transmit receive point (TRP) index or a control resource set pool index.

[0009] Optionally, the target common TCI state index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

[0010] Optionally, the obtaining of the first indication information includes:

[0011] Receive the control unit MAC CE signaling of the media access control layer sent by the network device, where the MAC CE carries second indication information for activating one or more TCI status indexes, and one TCI status index corresponds to one TRP index or one control resource set pool index;

[0012] Determine the first indication information according to the one or more TCI status indexes activated by the second indication information.

[0013] Optionally, the number of TCI status indexes activated by the second indication information for one TRP index or one control resource set pool index is one, and determining the first indication information according to the one or more TCI status indexes activated by the second indication information includes:

[0014] Determine the one TCI status index activated by the second indication information as the first indication information.

[0015] Optionally, the number of TCI status indexes activated by the second indication information for one TRP index or one control resource set pool index is multiple, and determining the first indication information according to the one or more TCI status indexes activated by the second indication information includes:

[0016] Receive the first downlink control information DCI signaling sent by the network device, and the first DCI signaling carries the first indication information;

[0017] Wherein, the first indication information includes one target common TCI status index or index combination among the multiple TCI status indexes activated by the second indication information.

[0018] Optionally, the method further includes:

[0019] Send first hybrid automatic repeat request HARQ feedback information to the network device;

[0020] Wherein, the first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is received successfully;

[0021] The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or set by default.

[0022] Optionally, the performing at least two communication transmissions with the network device using the target common beam includes:

[0023] Receive the second DCI signaling sent by the network device on the PDCCH using the target common beam;

[0024] Among them, the second DCI signaling carries resource configuration information for configuring transmission resources of a reference signal, a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and / or a physical downlink shared channel (PDSCH).

[0025] Optionally, the first DCI signaling further carries resource configuration information for configuring transmission resources for at least one of a reference signal, PRACH, PUSCH, PUCCH, and PDSCH.

[0026] Optionally, the method further includes:

[0027] Sending second HARQ feedback information to the network device;

[0028] Among them, the second HARQ feedback information includes:

[0029] First feedback information for feeding back whether the first DCI signaling is successfully received;

[0030] And / or,

[0031] Second feedback information for feeding back whether the PDSCH or the downlink reference signal configured by the first DCI signaling is successfully received.

[0032] Optionally, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is a default setting.

[0033] Optionally, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

[0034] Optionally, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0035] Optionally, the transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0036] Optionally, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0037] Optionally, the method further includes:

[0038] According to the resource configuration information carried in the first DCI signaling, communicate and transmit with the network device using the configured transmission resources.

[0039] Optionally, when the time interval between the communication transmission and the first DCI signaling is less than a threshold, the communication transmission uses the same beam as the first DCI signaling; when the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold, the communication transmission uses the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0040] Optionally, the threshold is notified by the network device;

[0041] The method further includes:

[0042] Send a reference time to the network device, where the reference time is used by the network device to determine the threshold;

[0043] Wherein, the reference time includes the decoding time of the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or, the reference time includes the HARQ feedback time corresponding to the first DCI signaling, and the beam switching time.

[0044] Optionally, the threshold is default set in the UE.

[0045] Optionally, the UE receives one or more transmissions of the first DCI signaling using one or more receiving beams.

[0046] Optionally, the first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for uplink and downlink resource scheduling, or a DCI signaling only for uplink and downlink target common beam indication.

[0047] Optionally, the target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and an uplink and downlink target common TCI state index.

[0048] Optionally, the method further includes:

[0049] Receive third indication information sent by the network device, where the third indication information is used to indicate that the UE uses the target common beam or a dedicated beam for the at least two communication transmissions.

[0050] Optionally, the first indication information further includes indication information of the at least two communication transmissions.

[0051] Optionally, the channel includes at least one or a combination of the following:

[0052] Physical Downlink Control Channel (PDCCH);

[0053] Physical Downlink Shared Channel (PDSCH);

[0054] Physical Uplink Control Channel (PUCCH);

[0055] Physical Uplink Shared Channel (PUSCH);

[0056] Physical Broadcast Channel (PBCH);

[0057] Physical Random Access Channel (PRACH).

[0058] Optionally, the reference signal includes at least one or a combination of the following:

[0059] Channel State Information Reference Signal (CSI-RS);

[0060] Synchronization Signal Block (SSB);

[0061] Demodulation Reference Signal (DMRS);

[0062] Positioning Reference Signal (PRS);

[0063] Tracking Reference Signal (TRS);

[0064] Sounding Reference Signal (SRS).

[0065] A beam indication method according to an embodiment of another aspect of the present disclosure, which is applied to a network device, and the method includes:

[0066] Sending first indication information to a User Equipment (UE), where the first indication information is used to indicate a target common beam, so that the UE uses the target common beam to perform at least two communication transmissions with the network device, where the communication transmissions include the transmission of channels and / or reference signals.

[0067] Optionally, the first indication information includes a target common Transmission Configuration Indication (TCI) state index or an index combination.

[0068] Optionally, the target common TCI state index corresponds to a Transmit and Receive Point (TRP) index or a control resource set pool index.

[0069] Optionally, the target common TCI state index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

[0070] Optionally, sending the first indication information to the user equipment UE includes:

[0071] Sending a Media Access Control layer control element MAC CE signaling to the UE, where the MAC CE carries second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to one TRP index or one control resource set pool index;

[0072] Wherein, the one or more TCI state indexes activated by the second indication information are used to determine the first indication information.

[0073] Optionally, the number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is one;

[0074] Wherein, the first indication information represents one TCI state index activated by the second indication information.

[0075] Optionally, the number of TCI indexes activated by the second indication information for one TRP index or one control resource set pool index is multiple; sending the first indication information to the user equipment UE further includes:

[0076] Sending a first Downlink Control Information DCI signaling to the UE, and the first DCI signaling carries the first indication information;

[0077] Wherein, the first indication information includes one target common TCI state index or index combination among the multiple TCI state indexes activated by the second indication information.

[0078] Optionally, the method further includes:

[0079] Receiving first Hybrid Automatic Repeat reQuest HARQ feedback information sent by the UE;

[0080] Wherein, the first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is received successfully;

[0081] The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or set by default.

[0082] Optionally, the method includes:

[0083] Sending a second DCI signaling to the UE on the PDCCH, so that the UE receives the second DCI signaling using the target common beam;

[0084] Among them, the second DCI signaling carries resource configuration information for configuring transmission resources of reference signals, physical random access channel (PRACH), physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), and / or physical downlink shared channel (PDSCH).

[0085] Optionally, the first DCI signaling further carries resource configuration information for configuring transmission resources of at least one of reference signals, PRACH, PUSCH, PUCCH, and PDSCH.

[0086] Optionally, the method further includes:

[0087] Receiving second HARQ feedback information sent by the UE;

[0088] Among them, the second HARQ feedback information includes:

[0089] First feedback information for feeding back whether the first DCI signaling is successfully received;

[0090] And / or,

[0091] Second feedback information for feeding back whether the PDSCH or downlink reference signal configured by the first DCI signaling is successfully received.

[0092] Optionally, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is a default setting.

[0093] Optionally, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

[0094] Optionally, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0095] Optionally, the transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0096] Optionally, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0097] Optionally, the method further includes:

[0098] Perform communication transmission with the UE according to the resource configuration information carried in the first DCI signaling.

[0099] Optionally, indicating that the time interval between the communication transmission and the first DCI signaling is less than a threshold value characterizes indicating that the UE uses the same beam as the first DCI signaling for the communication transmission; indicating that the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold value characterizes indicating that the UE uses the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling for the communication transmission.

[0100] Optionally, the method further includes:

[0101] Send the threshold indication to the UE according to the reference time sent by the UE.

[0102] Wherein, the reference time includes the time used by the UE for decoding the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or, the reference time includes the HARQ feedback time corresponding to the first DCI signaling by the UE, and the beam switching time.

[0103] Optionally, send the first DCI signaling one or more times, and indicate that the UE uses one or more receiving beams for reception.

[0104] Optionally, the first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for uplink and downlink resource scheduling, or a DCI signaling only for uplink and downlink target common beam indication.

[0105] Optionally, the target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and an uplink and downlink target common TCI state index.

[0106] Optionally, the method further includes:

[0107] Send third indication information to the UE, where the third indication information is used to indicate that the UE uses the target common beam or a dedicated beam for the at least two communication transmissions.

[0108] Optionally, the first indication information further includes indication information of the at least two communication transmissions.

[0109] Optionally, the channel includes at least one or a combination of the following:

[0110] Physical Downlink Control Channel (PDCCH);

[0111] Physical Downlink Shared Channel (PDSCH);

[0112] Physical Uplink Control Channel (PUCCH);

[0113] Physical Uplink Shared Channel (PUSCH);

[0114] Physical Broadcast Channel (PBCH);

[0115] Physical Random Access Channel (PRACH).

[0116] Optionally, the reference signal includes at least one or a combination of the following:

[0117] Channel State Information Reference Signal (CSI-RS);

[0118] Synchronization Signal Block (SSB);

[0119] Demodulation Reference Signal (DMRS);

[0120] Positioning Reference Signal (PRS);

[0121] Tracking Reference Signal (TRS);

[0122] Sounding Reference Signal (SRS).

[0123] A beam indication device proposed in another embodiment of the present disclosure is applied to a User Equipment (UE). The device includes:

[0124] An acquisition module, configured to acquire first indication information, where the first indication information is used to indicate a target general beam;

[0125] An execution module, configured to perform at least two communication transmissions with a network device by using the target general beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0126] A beam indication device proposed in another embodiment of the present disclosure is applied to a network device. The device includes:

[0127] An indication module, configured to send first indication information to a User Equipment (UE), where the first indication information is used to indicate a target general beam, so that the UE performs at least two communication transmissions with the network device by using the target general beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0128] Another embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; and a processor, connected to the transceiver and the memory respectively, configured to control the wireless signal transceiver of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the beam indication method as described in one aspect or another aspect.

[0129] Another embodiment of the present disclosure provides a computer storage medium, in which the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions can implement the beam indication method as described in one aspect or another aspect.

[0130] The beam indication method, apparatus and communication device provided by the embodiments of the present disclosure send first indication information for indicating a target general beam from a network device to a UE. After the UE receives the first indication information sent by the network device, the UE and the network device use the target general beam to perform communication transmission on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target general beam is only sent once, the target general beam can be used for various communication transmissions including reference signal transmission and channel transmission, thus avoiding separately indicating the beam for each channel transmission or reference signal transmission, and saving signaling overhead.

[0131] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0132] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0133] Figure 1 is a schematic flowchart of a beam indication method provided by an embodiment of the present disclosure;

[0134] Figure 2 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure;

[0135] Figure 3 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure;

[0136] Figure 4 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure;

[0137] Figure 5 is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure;

[0138] Figure 6 Flow schematic diagram of a beam indication method provided by an embodiment of the present disclosure;

[0139] Figure 7 Flow schematic diagram of another beam indication method provided by an embodiment of the present disclosure;

[0140] Figure 8 Flow schematic diagram of another beam indication method provided by an embodiment of the present disclosure;

[0141] Figure 9 Flow schematic diagram of another beam indication method provided by an embodiment of the present disclosure;

[0142] Figure 10 Flow schematic diagram of another beam indication method provided by an embodiment of the present disclosure;

[0143] Figure 11 Structural schematic diagram of a beam indication device 110 provided by an embodiment of the present disclosure;

[0144] Figure 12 Structural schematic diagram of a beam indication device 120 provided by an embodiment of the present disclosure;

[0145] Figure 13 Block diagram of a communication device for the beam indication method provided by an embodiment of the present disclosure. Specific embodiments

[0146] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0147] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0148] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "when" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0149] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.

[0150] In the related art, the beams on channels such as PDCCH, PUCCH, PDSCH, and PUSCH are each indicated by independent signaling, resulting in a large signaling overhead. To solve the technical problem of large signaling overhead, in the embodiments of the present disclosure, a method of using a target common beam for channels and / or reference signals is adopted. The network device only needs to send the first indication information of the target common beam once, and this target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

[0151] The beam indication method, apparatus, and communication device provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

[0152] Figure 1 The flowchart of a beam indication method provided for the embodiments of the present disclosure is applied to a user equipment.

[0153] As Figure 1 shown, the method includes the following steps:

[0154] Step 101: Obtain first indication information, where the first indication information is used to indicate a target common beam.

[0155] The beam indication method according to an embodiment of the present disclosure can be applied to any user equipment. The user equipment can be scattered throughout the mobile communication system, and each user equipment can be stationary or mobile. The user equipment can also be referred to by those skilled in the art as a mobile station, user station, mobile unit, user unit, radio unit, remote unit, mobile device, terminal device, wireless device, wireless communication device, remote device, mobile user station, access user equipment, mobile user equipment, wireless user equipment, remote user equipment, handheld device, user agent, mobile client, client, or some other appropriate terms. The user equipment can be a cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, tablet computer, laptop computer, cordless phone, wireless local loop (WLL) station, etc., capable of communicating with network equipment in the mobile communication system.

[0156] Among them, the first indication information can be carried in control signaling, such as radio resource control (RRC) signaling, or a medium access control (MAC) control element (CE), or downlink control information (DCI) signaling, and can also be a combination of at least two of the above signaling. In this embodiment, the manner of carrying the first indication information for the target common beam is not limited.

[0157] Step 102, perform at least two types of communication transmissions with the network device using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0158] Among them, network devices are deployed in a radio access network to provide radio access functions for user equipment. The network device may be a base station (BS). The network device may communicate wirelessly with the user equipment via one or more antennas. The network device may provide communication coverage for its geographical area. The base station may include different types such as macro base stations, micro base stations, relay stations, access points, etc. In some embodiments, the base station may be referred to by those skilled in the art as a base station transceiver, radio base station, access point, radio transceiver, basic service set (BSS), extended service set (ESS), Node B, evolved Node B (eNB or eNodeB), or some other appropriate terms. Exemplarily, in a 5G system, the base station is called a gNB. For ease of description, in the embodiments of the present disclosure, the devices that provide wireless communication functions for user equipment are collectively referred to as network devices.

[0159] As an example, the channel includes at least one or a combination of more than one of the following:

[0160] Physical Downlink Control Channel (PDCCH);

[0161] Physical Downlink Shared Channel (PDSCH);

[0162] Physical Uplink Control Channel (PUCCH);

[0163] Physical Uplink Shared Channel (PUSCH); Physical Broadcast Channel (PBCH);

[0164] Physical Random Access Channel (PRACH).

[0165] As an example, the reference signal includes at least one or a combination of more than one of the following:

[0166] Channel state information-reference signal (CSI-RS);

[0167] Synchronization Signal and PBCH Block (SSB);

[0168] Demodulation Reference Signal (DMRS);

[0169] Positioning Reference Signal (PRS);

[0170] Tracking Refernece Signal (TRS);

[0171] Sounding Reference Signal (SRS).

[0172] Among them, the above reference signals can be used in different scenarios. For example, beam measurement, channel state information measurement, path loss estimation, antenna switching, positioning measurement, channel estimation during demodulation, or synchronization tracking, etc. are not listed one by one in this embodiment. At the same time, the above-listed channels and reference signals are only examples and do not constitute a limitation to the present disclosure.

[0173] In this embodiment, the target common beam is applied to the communication transmission between the user equipment and the network equipment. According to the communication transmission direction, at least two types of communication transmissions can include channels and / or reference signals that all belong to the uplink transmission; can also include channels and / or reference signals that all belong to the downlink transmission; or include channels and / or reference signals that part of them are for the uplink transmission and the other part are for the downlink transmission. The following will separately describe several possible implementation manners:

[0174] As a first possible implementation, the target common beam can be used for communication transmission of at least two channels. For example, the target common beam can be used for the PDSCH channel and the PDCCH channel, where the PDSCH channel includes all PDSCH channels or only a part of the PDSCH channels, such as the user equipment dedicated PDSCH channel; the PDCCH includes all PDCCH channels or only a part of the PDCCH channels, such as the user equipment dedicated PDCCH channel. Or, for another example, the target common beam can be used for the PUSCH channel and the PUCCH channel, where the PUSCH channel includes all PUSCH channels or only a part of the PUSCH channels, such as the user equipment dedicated PUSCH channel, and the PUCCH includes all PUCCH channels or only a part of the PUCCH channels, such as the user equipment dedicated PUCCH channel. For another example, the target common beam can be used for the PUSCH channel and the PDSCH channel, where the PUSCH channel includes all PUSCH channels or only a part of the PUSCH channels, such as the UE dedicated PUSCH channel, and the PDSCH includes all PDSCH channels or only a part of the PDSCH channels, such as the UE dedicated PDSCH channel. Among them, when the target common beam is used for the PDSCH channel and the PDCCH channel, the target common beam can be referred to as the downlink target common beam (DL common beam); when the target common beam is used for the PUSCH channel and the PUCCH channel, the target common beam can be referred to as the uplink target common beam (Ul common beam); when the target common beam is used for the PUSCH channel and the PDSCH channel, the target common beam is called the common beam, that is, it is used for both uplink and downlink at the same time.

[0175] As a second possible implementation, the target general beam can be used for the communication transmission of at least two reference signals. Here, the at least two reference signals can belong to downlink reference signals, or can belong to uplink reference signals, or can be a mixture of downlink reference signals and uplink reference signals, which is not limited in this embodiment. For example, the downlink reference signals can include at least one of SSB, CSI-RS, PRS, TRS, and DMRS; or, for another example, the uplink reference signals can include at least one of SRS and DMRS. For some reference signals, such as CSI-RS, it can also be all CSI-RS; or it does not include all CSI-RS, but includes at least one type of CSI-RS for a specific purpose, such as at least one of CSI-RS for channel state information measurement, beam measurement, path loss estimation, and positioning measurement. Another example is SRS, which can also be all SRS; or it does not include all SRS, but includes at least one type of SRS for a specific purpose, such as at least one of SRS for code book-based channel state information measurement, non-code book-based channel state information measurement, beam measurement, antenna switching, and positioning measurement.

[0176] As a third possible implementation, the target general beam can be used for the communication transmission of at least one reference signal and at least one channel. For example, the target general beam can be used for the communication transmission of the PDSCH channel and downlink reference signals, where the downlink reference signals can include at least one of SSB, CSI-RS, PRS, TRS, and DMRS; or, for another example, the target general beam can be used for the communication transmission of the PUSCH and uplink reference signals, where the uplink reference signals can include at least one of SRS and DMRS. Similarly, here the PDSCH can include all PDSCH, or only include part of the PDSCH, such as UE dedicated PDSCH; here the PUSCH can include all PUSCH, or only include part of the PUSCH, such as UE dedicated PUSCH; here the reference signals, such as CSI-RS or SRS, can include all-purpose or at least one-purpose CSI-RS or SRS.

[0177] It should be noted that the foregoing downlink channels, uplink channels, downlink reference signals, and uplink reference signals are only for illustrative purposes. In specific implementations, they are not limited to the several channel or reference signal types listed above, and the listed reference signal types do not constitute a limitation on the scope of this disclosure.

[0178] In a possible implementation of the embodiments of the present disclosure, the first indication information further includes indication information of at least two types of communication transmissions. That is to say, the indication information indicates at least two types of communication transmissions determined when the user equipment performs communication transmission with the network device using the target common beam. For example, the indication information indicates that the communication transmissions between the user equipment and the network device using the target common beam are PDSCH channel and PDCCH channel transmissions. Among them, regarding the implementation manners of at least two types of communication transmissions, the above implementation manners have been described and will not be elaborated here.

[0179] In this embodiment, the target common beam may be a single beam or multiple beams, and this embodiment does not limit this.

[0180] In the case where the target common beam is a multi-beam, it is necessary to determine the target common beam corresponding to each TRP (Transmission and Reception Point) or determine the target common beam corresponding to each control resource set pool index (Core Set Pool Index) according to the first indication information sent by the network device. Therefore, the target TCI state index in the first indication information should correspond to the TRP index or the control resource set pool index.

[0181] In the embodiments of the present disclosure, the network device sends the first indication information to the UE. After the UE receives the first indication information sent by the network device, the UE and the network device perform communication transmission using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding indicating the beam for each channel transmission or reference signal transmission separately and saving signaling overhead.

[0182] Figure 2 It is a flowchart of another beam indication method provided by the embodiments of the present disclosure and is applied to a user equipment.

[0183] Based on Figure 2 the provided beam indication method, the indication manner of the target common beam is described. As Figure 2 shown, the method includes:

[0184] Step 201, receive the target common transmission configuration indicator (TCI) state index or index combination sent by the network device.

[0185] Among them, the descriptions of the user equipment and the network equipment can refer to the explanations in any of the above embodiments, and will not be elaborated in this embodiment.

[0186] In this embodiment, the first indication information received by the user equipment includes the target common transmission configuration indication (TCI) status index or index combination sent by the network equipment. Among them, the target common TCI status index combination can be determined by a combination identifier. For example, 01 and 02 respectively indicate different index combinations; or different index combinations can be indicated by different code points, such as code point 000 and 001 of 3 bits respectively indicate different index combinations. Each of the different index combinations includes one or more TCI status indexes. And the target common TCI status index can be one or more. Among them, each target common TCI status index corresponds to one or more reference signals (RS), and each reference signal is used to indicate at least one of the uplink target common beam and the downlink target common beam.

[0187] In this embodiment, the target common TCI status index includes at least one of a downlink target common TCI status index, an uplink target common TCI status index, and an uplink and downlink target common TCI status index.

[0188] It should be understood that the reference signal corresponding to the downlink target common TCI status index, such as RS, is not used to indicate the target common beam of the uplink channel or the uplink reference signal; the reference signal corresponding to the uplink target common TCI status index, such as RS, is not used to indicate the target common beam of the downlink channel or the downlink reference signal. The reference signal corresponding to the uplink and downlink target common TC status index, such as RS, can simultaneously indicate the target common beam of the uplink transmission or the downlink transmission, and is indicated by one reference signal RS or two reference signals RS respectively.

[0189] As an implementation, the network device configures the correspondence between the target common TCI state index and the reference signal (RS) through radio resource control (RRC) signaling. Among them, after the UE obtains the target TCI state index, according to the target TCI state index, querying the correspondence between the TCI state index and the RS can obtain the reference signal RS corresponding to the target TCI state index. Correspondingly, the UE determines the corresponding beam according to the reference signal RS. Optionally, the correspondence between the TCI state index and the RS can be in the form of a TCI table or other forms. Taking the form of the correspondence as a TCI table as an example for illustration. The TCI table may include information such as the TCI state index (i.e., TCI State ID) and the reference signal index (RS ID, Reference Signal ID).

[0190] It should be noted that when the obtained is a target common TCI state index combination, according to the mapping relationship between the identifier or codepoint displayed by the bit of the index combination and the index combination, multiple target common TCI state indexes included are determined. Furthermore, according to the pre-configured correspondence between the TCI state index and the RS index, the corresponding target common beam is determined.

[0191] As a possible implementation, the TCI state index sent by the network device can indicate one of the uplink target common beam and the downlink target common beam. That is to say, the uplink target common TCI state index is used to indicate the uplink target common beam, and the downlink target common TCI state index is used to indicate the downlink target common beam.

[0192] As another possible implementation, the target common TCI state index sent by the network device can be used to indicate the uplink target common beam and the downlink target common beam. Among them, as an implementation, the target common TCI state index sent by the network device indicates a corresponding RS for each TRP, that is, this RS indicates both the uplink target common beam and the downlink target common beam at the same time. As another implementation, the target common TCI state index sent by the network device indicates a corresponding RS for each TRP, and this RS can indicate the uplink target common beam or indicate the downlink target common beam. As yet another implementation, the target common TCI state sent by the network device indicates two corresponding RSs for each TRP, and one of the two RSs is used to indicate the uplink target common beam, and the other RS is used to indicate the downlink target common beam.

[0193] It should be noted that the target general TCI state index corresponds to a transmit-receive point (TRP) index or a control resource set pool index. That is to say, the target general TCI state index is common when performing various communication transmissions with a TRP, and different TRPs use different target general TCI state indices; the target general TCI state index is common when performing various communication transmissions with a control resource set pool index, and different control resource set pool indices use different target general TCI state indices.

[0194] It should be understood that in one embodiment, when there is one TRP, the determined general beam is the beam corresponding to that TRP; in another embodiment, when there are multiple TRPs, different TRPs have corresponding target general TCI state indices, and the target general TCI state index has a corresponding reference signal (RS). According to the target general beam corresponding to the RS, the target general beam corresponding to the corresponding TRP can be determined.

[0195] Step 202: Determine the target general beam according to the TCI state index or index combination.

[0196] Among them, the index combination includes multiple TCI state indices, and each TCI state index corresponds to a different TRP.

[0197] The network device can pre-configure the correspondence between the target general TCI state index and the RS for the UE through high-layer signaling, such as radio resource control (RRC) signaling, or a medium access control (MAC) control element (CE). According to this pre-configured correspondence, the UE can determine the corresponding target general beam based on the target general TCI state index dynamically indicated by the network device.

[0198] Step 203: Perform at least two types of communication transmissions with the network device using the target general beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0199] In the embodiments of the present disclosure, Step 203 can be implemented in any one of the embodiments of the present disclosure. The embodiments of the present disclosure do not make any limitations in this regard and will not be elaborated further.

[0200] In an embodiment of the present disclosure, a network device sends first indication information of a target common beam to a UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device perform communication transmission using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating beams for each channel transmission or reference signal transmission and saving signaling overhead.

[0201] Figure 3 It is a schematic flowchart of another beam indication method provided by an embodiment of the present disclosure, and this method is executed by a UE.

[0202] A possible manner of carrying the first indication information of the target common beam is provided in the present disclosure, as Figure 3 shown. The method includes:

[0203] Step 301: Receive a media access control layer control element MAC CE signaling sent by a network device. The MAC CE carries second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to one TRP index or one control resource set pool index.

[0204] Regarding the descriptions of the user equipment and the network device, reference can be made to the explanations in any of the above embodiments, and details will not be repeated in this embodiment.

[0205] The MAC CE signaling includes an indication bit, and the second indication information for activating one or more TCI state indexes is recorded in the indication bit. That is to say, the second indication information indicates one or more TCI state indexes to be activated.

[0206] Optionally, the MAC CE has a corresponding indication bit for each TCI state index. Thus, the UE determines the corresponding TCI state index according to the second indication information in the indication bit, and one TCI state index corresponds to one TRP index or one control resource set pool index.

[0207] It should be noted that the beam includes an uplink beam, a downlink beam, and an uplink and downlink common beam. One or more beams can be activated for each TRP. Among the activated beams, there can be at least one uplink beam, and / or at least one downlink beam or at least one uplink and downlink common beam. In this embodiment, the number of activated beams is not limited.

[0208] Step 302: Determine the first indication information according to one or more TCI state indexes activated according to the second indication information.

[0209] Among them, the first indication information is used to indicate the target common beam.

[0210] In this embodiment, one TCI state index corresponds to one TRP index or one control resource set pool index.

[0211] In a possible scenario, the number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is one. Therefore, the one TCI state index activated by the second indication information is determined as the first indication information. For example: if one TCI state index is activated for one TRP, then the TCI state index corresponding to this TRP is the activated TCI state index. For example, if the activated TCI state index corresponds to the downlink target common TCI state index, then the reference signal corresponding to this activated TCI state index indicates the downlink target common beam. Therefore, the downlink target common beam of this TRP is the downlink beam indicated by the reference signal corresponding to this TCI state index. Another example: if the activated TCI state index corresponds to the uplink target common TCI state index, then the reference signal corresponding to this activated TCI state index indicates the uplink target common beam. Therefore, the uplink target common beam of this TRP is the uplink beam indicated by the reference signal corresponding to this TCI state index. Another example: if the activated TCI state index corresponds to the target common TCI state index, then the reference signal corresponding to this activated TCI state index indicates the uplink target common beam and the downlink target common beam. Therefore, the uplink target common beam and the downlink target common beam of this TRP are the uplink beam and the downlink beam indicated by the reference signal corresponding to this TCI state index.

[0212] In another possible scenario, the number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is multiple. Then, it is necessary to determine a target TCI state index or index combination corresponding to the corresponding TRP index or control resource set pool index from the multiple TCI state indexes as the first indication information. As an implementation method, receive the first downlink control information DCI signaling sent by the network device. The first DCI signaling carries the first indication information, where the first indication information includes a target common TCI state index or index combination among the multiple TCI state indexes activated by the second indication information.

[0213] It should be noted that the index combination includes multiple common TCI state indexes, and different TCI state indexes correspond to different TRPs or different control resource set pool indexes.

[0214] Step 303: Perform at least two types of communication transmissions with the network device using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0215] In the embodiments of the present disclosure, step 303 can be implemented in any one of the ways in the embodiments of the present disclosure. The embodiments of the present disclosure do not limit this and will not elaborate further.

[0216] In the embodiments of the present disclosure, the network device sends the first indication information of the target common beam to the UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device use the target common beam to perform communication transmissions on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thus avoiding the indication of the beam for each channel transmission or reference signal transmission respectively, and saving signaling overhead.

[0217] Figure 4 It is a flowchart of another beam indication method provided by the embodiments of the present disclosure, and this method is executed by the UE.

[0218] A possible bearing manner of the first indication information of the target common beam is provided in the present disclosure, as Figure 4 shown. This method includes:

[0219] Step 401: Receive the first downlink control information DCI signaling sent by the network device.

[0220] Regarding the description of the user equipment and the network device, reference can be made to the explanations in any of the above embodiments, and no further elaboration will be made in this embodiment.

[0221] Among them, the first DCI signaling contains the first indication information of the target common beam. That is to say, the target common TCI state index or index combination, and the resource configuration information are in different DCI signalings, and the first DCI signaling contains the target common TCI state index or index combination, that is, the first indication information.

[0222] The first DCI signaling can be based on a single TRP or multiple TRPs, and this is not limited in this embodiment.

[0223] In a possible implementation manner of the embodiments of the present disclosure, the UE receives one or more transmissions of the first DCI signaling by using one or more receiving beams. That is to say, the network device uses one or more TRPs to perform one or more transmissions of the first DCI signaling, and at the same time, each TRP corresponds to a different beam, avoiding occlusion during signal transmission and improving communication quality to ensure reception of the first DCI signaling.

[0224] Step 402: Send first hybrid automatic repeat request (HARQ) feedback information to the network device.

[0225] The first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is successfully received.

[0226] The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or set by default.

[0227] In a possible scenario, the number of times the network device sends the first DCI signaling can be one. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the first HARQ feedback information can be one or more.

[0228] In another possible scenario, the number of times the network device sends the first DCI signaling can be multiple. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the first HARQ feedback information can be one or more.

[0229] Optionally, the UE sends the first HARQ feedback information each time it receives the first DCI signaling.

[0230] Alternatively, optionally, the network device repeatedly sends the first DCI signaling at N transmission times. Correspondingly, the UE is configured with L candidate PUCCH / PUSCH resources for sending the first HARQ feedback information, where L is less than or equal to N, and some of the L candidate PUCCH / PUSCH resources are before the end of the N transmission times and some are after the end of the N transmission times. If the UE correctly receives the first DCI signaling before the N transmission times, the UE can select a candidate PUCCH / PUSCH resource and send the first HARQ feedback information before the N transmission times. If the UE correctly receives the first DCI signaling at or after the end of the N transmission times, the UE can select another candidate PUCCH / PUSCH resource and send the first HARQ feedback information after the end of the N transmission times.

[0231] Alternatively, or optionally, the network device repeatedly transmits the first DCI signaling at N transmission times. Correspondingly, the UE is configured with 1 candidate PUCCH / PUSCH resource for transmitting the first HARQ feedback information, and the UE can transmit the first HARQ feedback information after the N transmission times end.

[0232] Furthermore, when the UE communicates with the network device subsequently, at least two types of communication transmissions are performed with the network device using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0233] In an example of this embodiment, the transmission beam for transmitting the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0234] In another example of this embodiment, the transmission beam for transmitting the first HARQ feedback information is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0235] Step 403: Receive the second DCI signaling sent by the network device on the physical downlink control channel PDCCH using the target common beam.

[0236] In this embodiment, for ease of description, the DCI signaling carrying the transmission resource configuration information is referred to as the second DCI signaling.

[0237] Among them, the second DCI signaling carries resource configuration information for configuring the transmission resources of reference signals, physical random access channel PRACH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, and / or physical downlink shared channel PDSCH.

[0238] Among them, the configured reference signals may specifically include at least one of the following reference signals:

[0239] Including the channel state information reference signal CSI-RS;

[0240] Synchronization signal block SSB;

[0241] Demodulation reference signal DMRS;

[0242] Positioning reference signal PRS;

[0243] Tracking reference signal TRS;

[0244] Sounding reference signal SRS.

[0245] The above reference signals can be used in different scenarios. For example, beam measurement, channel state information measurement, path loss estimation, antenna switching, positioning measurement, channel estimation during demodulation, or synchronization tracking, etc. These are not listed one by one in this embodiment. In specific implementation, it is not limited to the several reference signal types listed above, and the listed reference signal types do not constitute a limitation on the scope of the present disclosure.

[0246] It should be understood that the second DCI signaling can be the first DCI signaling after the first DCI signaling is sent. And the transmission time interval between the first DCI signaling and the second DCI signaling is sufficient for the user equipment and the network equipment to complete HARQ feedback, that is, the time interval is sufficient for the user equipment to decode the received first DCI signaling and feedback HARQ to the network equipment.

[0247] In the embodiments of the present disclosure, the network equipment sends the first indication information of the target common beam to the UE. Thus, after the UE receives the first indication information of the target common beam sent by the network equipment, the UE and the network equipment apply the target common beam for communication transmission on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thus avoiding indicating the beam for each channel transmission or reference signal transmission respectively, and saving signaling overhead.

[0248] Figure 5 It is a schematic flowchart of another beam indication method provided by the embodiments of the present disclosure, and this method is executed by the UE.

[0249] A possible bearing manner of the first indication information of the target common beam is provided in the present disclosure, as Figure 5 shown. This method includes:

[0250] Step 501, receive the first DCI signaling sent by the network equipment.

[0251] Among them, the descriptions of the user equipment and the network equipment can refer to the explanations in any of the above embodiments, and will not be elaborated in this embodiment.

[0252] Among them, the first DCI signaling contains the first indication information, and resource configuration information carrying the configuration of transmission resources for at least one of the reference signal, PRACH, PUSCH, PUCCH, and PDSCH.

[0253] As a possible implementation, the first DCI signaling carries resource configuration information of the transmission resources for downlink transmission, and the first DCI signaling is DCI signaling for downlink resource scheduling. A preset DCI signaling can be adopted, for example, DCI format1_0, 1_1 or 1_2, or a redefined DCI signaling can be adopted. In this embodiment, they are not listed one by one and are not limited.

[0254] As another possible implementation, the first DCI signaling carries resource configuration information of the transmission resources for uplink transmission, and the first DCI signaling is DCI signaling for uplink resource scheduling. A preset DCI signaling can be adopted, for example, DCI format0_0, 0_1 or 0_2, or a redefined DCI signaling can be adopted. In this embodiment, they are not listed one by one and are not limited.

[0255] As a third possible implementation, the first DCI signaling carries resource configuration information of the transmission resources for both uplink and downlink transmission, and the first DCI signaling is DCI signaling for uplink and downlink resource scheduling.

[0256] The first DCI signaling can be DCI signaling for resource configuration for a single TRP or for multiple TRPs. This is not limited in this embodiment.

[0257] Step 502: Send second HARQ feedback information to the network device.

[0258] In this embodiment, when HARQ feedback resources are configured, second HARQ feedback information is sent to the network device.

[0259] Among them, the second HARQ feedback information sent by the UE to the network device can adopt the same beam as that for sending the first DCI signaling, or can adopt the target common beam indicated by the first indication information included in the first DCI signaling. This is not limited in this embodiment.

[0260] As a possible implementation, the network device schedules two HARQ feedback resources through the first DCI signaling, or the UE is pre-configured with two HARQ feedback resources. Then, the second HARQ feedback information includes: first feedback information for feedbacking whether the first DCI signaling is received successfully, and second feedback information for feedbacking whether the PDSCH or downlink reference signal configured by the first DCI signaling is received successfully.

[0261] As another possible implementation, if the network device schedules a HARQ feedback resource through the first DCI signaling, or if the UE is pre-configured with a HARQ feedback resource, then the second HARQ feedback information, including the first feedback information and the second feedback information, shares the HARQ feedback resource.

[0262] In one implementation of this embodiment, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is set by default.

[0263] In one implementation of this embodiment, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

[0264] In an example, when the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0265] In a possible scenario, the number of times the network device sends the first DCI signaling can be one. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the second HARQ feedback information can be one or more.

[0266] In another possible scenario, the number of times the first DCI signaling is sent by the network device can be multiple times. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the second HARQ feedback information can be one or more. Optionally, the UE sends the second HARQ feedback information once every time it receives the first DCI signaling. Alternatively, optionally, the network device repeatedly sends the first DCI signaling at N transmission times. Correspondingly, the UE is configured with L candidate PUCCH / PUSCH resources for sending the first HARQ feedback information, where L is less than or equal to N, and some of the L candidate PUCCH / PUSCH resources are before the end of the N transmission times, and some are after the end of the N transmission times. If the UE correctly receives the first DCI signaling before the N transmission times, the UE can select a candidate PUCCH / PUSCH resource and send the second HARQ feedback information before the N transmission times. When the UE correctly receives the first DCI signaling at or after the end of the N transmission times, the UE can select a candidate PUCCH / PUSCH resource and send the second HARQ feedback information after the end of the N transmission times. Alternatively, optionally, the network device repeatedly sends the first DCI signaling at N transmission times. Correspondingly, the UE is configured with 1 candidate PUCCH / PUSCH resource for sending the first HARQ feedback information, and the UE can send the second HARQ feedback information after the end of the N transmission times.

[0267] In an example of this embodiment, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0268] In another example of this embodiment, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0269] Step 503: According to the resource configuration information carried in the first DCI signaling, communicate and transmit with the network device using the configured transmission resources.

[0270] In this embodiment, when not sending a separate HARQ feedback for whether the first DCI signaling is received successfully, the network device determines whether the UE has correctly received the first DCI signaling based on whether the UE communicates and transmits with the network device using the configured transmission resources, that is, whether the network device has completed the configuration.

[0271] In an implementation manner of this embodiment, when the time interval between the UE's communication transmission and receiving the first DCI signaling is less than a threshold, the communication transmission uses the same beam as the first DCI signaling.

[0272] In another implementation of this embodiment, when the time interval between the communication transmission of the user equipment and the reception of the first DCI signaling is greater than or equal to a threshold, the communication transmission uses the target common beam corresponding to the target common TCI state index in the first DCI signaling.

[0273] In the embodiment of the present disclosure, the threshold in step 503 is default set in the UE. As a possible implementation, it can be notified by the network device; as another possible implementation, it can be determined according to the historical transmission time. This embodiment does not make a limitation.

[0274] In one example, the threshold is notified by the network device.

[0275] As a possible implementation, the user equipment sends a reference time to the network device, and the reference time is used for the network device to determine the threshold. The reference time includes the decoding time of the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or the reference time includes the HARQ feedback time corresponding to the first DCI signaling, and the beam switching time. Thus, the user equipment can determine that it can complete including the decoding of the first DCI signaling, HARQ feedback, and beam switching within the reference time; or complete including HARQ feedback and beam switching.

[0276] As a possible implementation, the threshold determined by the network device is greater than or equal to the reference time.

[0277] In this embodiment, communication transmission, including the user equipment sending an uplink transmission and / or receiving a downlink transmission to / from the network device, is taken as an example for specific description.

[0278] In this embodiment, in the case where the HARQ feedback resource for whether the first DCI signaling is received successfully is not configured separately, the network device determines whether the UE has correctly received the first DCI signaling according to whether the UE uses the configured transmission resource to send an uplink transmission to the network device; or the network device uses the configured transmission resource to send a downlink transmission to the user equipment, and determines whether the UE has correctly received and decoded the first DCI signaling according to the HARQ feedback information fed back by whether the UE correctly receives and decodes the downlink transmission.

[0279] It should be noted that when the time interval between the uplink transmission and / or downlink transmission and the first DCI signaling is less than the threshold, the uplink transmission and / or downlink transmission use the same beam as the first DCI signaling. When the time interval between the uplink transmission and / or downlink transmission and the first DCI signaling is greater than or equal to the threshold, the uplink transmission and / or downlink transmission use the same beam as the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling. Among them, the threshold is at least one of the duration required for the UE to decode the first DCI signaling, the duration required for the UE to feedback to the network device whether the first DCI signaling is correctly received, and the duration of beam switching. This time threshold can be determined through negotiation between the UE and the network device.

[0280] After the network device determines that the UE has correctly received the first DCI signaling, when the UE and the network device perform subsequent communication transmissions, the target common beam can be applied during at least two communication transmissions with the network device, so as to perform uplink transmission and / or downlink transmission with the network device using the target common beam.

[0281] Step 504: Perform at least two communication transmissions with the network device using the target common beam.

[0282] Starting from the moment when the first DCI signaling is received, timing is determined, and at least two communication transmissions are not performed until the aforementioned threshold is reached, that is, the target common beam is used to perform the transmission of channels and / or reference signals in at least two communication transmissions with the network device, saving signaling overhead.

[0283] In the embodiments of the present disclosure, step 503 can be implemented in any one of the various embodiments of the present disclosure. The embodiments of the present disclosure do not make any limitations in this regard and will not be elaborated further.

[0284] In the embodiments of the present disclosure, the network device sends the first indication information of the target common beam to the UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device use the target common beam to perform communication transmissions on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thus avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

[0285] A possible way of beam indication and switching is provided in the present disclosure. In this embodiment, as a possible implementation, the user equipment may also receive third indication information sent by the network device, and the third indication information is used to indicate that the UE uses a target common beam or a dedicated beam for at least two communication transmissions.

[0286] In one implementation, the third indication information received by the user equipment may be received before the user equipment receives the first indication information. Thus, the user equipment determines to use the target common beam or the dedicated beam for at least two communication transmissions according to the third indication information. In one example, if it is determined to use the dedicated beam for at least two communication transmissions, then at least two communication transmissions are performed according to the indicated dedicated beam, where the signaling for indicating the dedicated beam for each communication transmission is different signaling. In another example, if it is determined to use the target common beam for at least two communication transmissions, then the target common beam to be used for communication transmission is further determined according to the obtained first indication information. For the specific implementation manner, reference may be made to any of the above embodiments, which will not be elaborated in this embodiment.

[0287] In another implementation, the third indication information received by the user equipment may be received after the user equipment receives the first indication information. Further, the network device determines, according to the received third indication information, that it is necessary to switch the target common beam to a dedicated beam, and the dedicated beam needs to send signaling for independent indication for each channel and / or each reference signal. In one possible application scenario, the network device needs to switch a certain channel or reference signal to a dedicated beam, so that only the indication information of the dedicated beam corresponding to the channel or reference signal is sent, and the other channels or reference signals that have not received the indication information of the dedicated beam will continue to use the target common beam. In another possible application scenario, the network device may switch all channels and / or reference signals currently using the target common beam to dedicated beams, and send the indication information of the dedicated beams for each channel and / or reference signal respectively.

[0288] Figure 6 It is a schematic flowchart of a beam indication method provided by an embodiment of the present disclosure, which is applied to a network device.

[0289] As Figure 6 shown, it includes the following steps:

[0290] Step 601: Send first indication information to the user equipment UE. The first indication information is used to indicate a target common beam, so that the UE uses the target common beam to perform at least two communication transmissions with the network device, where the communication transmission includes the transmission of a channel and / or a reference signal.

[0291] The beam indication method of this embodiment can be applied to any network device. The network device is deployed in the radio access network to provide wireless access functions for user equipment. The network device can be a base station BS. The network device can communicate wirelessly with the user equipment via one or more antennas. The network device can provide communication coverage for its geographical area. The base station can include different types such as macro base stations, micro base stations, relay stations, access points, etc. In some embodiments, the base station can be referred to by those skilled in the art as base station transceiver, radio base station, access point, radio transceiver, basic service set BSS, extended service set ESS, Node B, evolved Node B (eNB or eNodeB), or some other appropriate terms. Exemplarily, in a 5G system, the base station is called a gNB. For ease of description, in the embodiments of the present disclosure, the device that provides wireless communication functions for the user equipment is collectively referred to as a network device.

[0292] The user equipment can be scattered throughout the mobile communication system, and each user equipment can be stationary or mobile. The user equipment can also be referred to by those skilled in the art as mobile station, user station, mobile unit, user unit, radio unit, remote unit, mobile device, terminal device, radio device, wireless communication device, remote device, mobile user station, access user equipment, mobile user equipment, wireless user equipment, remote user equipment, handheld device, user agent, mobile client, client, or some other appropriate terms. The user equipment can be a cellular phone, personal digital assistant PDA, wireless modem, wireless communication device, handheld device, tablet computer, laptop computer, cordless phone, wireless local loop WLL station, etc., capable of communicating with the network device in the mobile communication system.

[0293] Among them, the first indication information can be carried in control signaling, such as radio resource control RRC signaling, or the control unit MAC CE of the media access control layer, or downlink control information DCI signaling, or a combination of at least two of the above signaling. In this embodiment, the manner of carrying the first indication information for the target common beam is not limited.

[0294] As an example, the channel includes at least one or a combination of the following:

[0295] Physical downlink control channel PDCCH;

[0296] Physical downlink shared channel PDSCH;

[0297] Physical uplink control channel PUCCH;

[0298] Physical uplink shared channel PUSCH;

[0299] Physical Broadcast Channel PBCH;

[0300] Physical Random Access Channel PRACH.

[0301] As an example, the reference signal includes at least one or a combination of the following:

[0302] Channel State Information Reference Signal CSI-RS;

[0303] Synchronization Signal Block SSB;

[0304] Demodulation Reference Signal DMRS;

[0305] Positioning Reference Signal PRS;

[0306] Tracking Reference Signal TRS;

[0307] Sounding Reference Signal SRS.

[0308] Among them, the above reference signals can be used in different scenarios. For example, beam measurement, channel state information measurement, path loss estimation, antenna handover, positioning measurement, channel estimation during demodulation, or synchronization tracking, etc. are not listed one by one in this embodiment. At the same time, the above-listed channels and reference signals are only examples and do not constitute a limitation to this disclosure.

[0309] In this embodiment, the target common beam is applied to the communication transmission between the user equipment and the network equipment. According to the communication transmission direction, at least two communication transmissions can include channels and / or reference signals that all belong to the uplink transmission; it can also include channels and / or reference signals that all belong to the downlink transmission; or it can include channels and / or reference signals that are partially uplink transmission and the other part is channels and / or reference signals for downlink transmission. The following will separately describe several possible implementation manners:

[0310] As a first possible implementation, the target common beam can be used for communication transmission on at least two channels. For example, the target common beam can be used for the PDSCH channel and the PDCCH channel, where the PDSCH channel includes all PDSCH channels or only a part of the PDSCH channels, such as the UE dedicated PDSCH channel; the PDCCH includes all PDCCH channels or only a part of the PDCCH channels, such as the UE dedicated PDCCH channel. Or, for another example, the target common beam can be used for the PUSCH channel and the PUCCH channel, where the PUSCH channel includes all PUSCH channels or only a part of the PUSCH channels, such as the UE dedicated PUSCH channel, and the PUCCH includes all PUCCH channels or only a part of the PUCCH channels, such as the UE dedicated PUCCH channel. For another example, the target common beam can be used for the PUSCH channel and the PDSCH channel, where the PUSCH channel includes all PUSCH channels or only a part of the PUSCH channels, such as the UE dedicated PUSCH channel, and the PDSCH includes all PDSCH channels or only a part of the PDSCH channels, such as the UE dedicated PDSCH channel. Among them, when the target common beam is used for the PDSCH channel and the PDCCH channel, the target common beam can be called the downlink target common beam (DL common beam); when the target common beam is used for the PUSCH channel and the PUCCH channel, the target common beam can be called the uplink target common beam (UL common beam); when the target common beam is used for the PUSCH channel and the PDSCH channel, the target common beam is called the common beam, that is, it is used for both uplink and downlink at the same time.

[0311] As a second possible implementation, the target general beam can be used for the communication transmission of at least two reference signals. The at least two reference signals here can belong to the downlink reference signals, or can belong to the uplink reference signals, or can be a mixture of downlink reference signals and uplink reference signals, and this embodiment does not limit this. For example, the downlink reference signals can include at least one of SSB, CSI-RS, PRS, TRS, and DMRS; or, for another example, the uplink reference signals can include at least one of SRS and DMRS. For some reference signals, such as CSI-RS, it can also be all CSI-RS; or instead of including all CSI-RS, it includes at least one type of CSI-RS for a specific purpose, such as at least one of CSI-RS for channel state information measurement, beam measurement, path loss estimation, and positioning measurement. Another example is SRS, which can also be all SRS; or instead of including all SRS, it includes at least one type of SRS for a specific purpose, such as at least one of SRS for codebook-based channel state information measurement, non-codebook-based channel state information measurement, beam measurement, antenna switching, and positioning measurement.

[0312] As a third possible implementation, the target general beam can be used for the communication transmission of at least one reference signal and at least one channel. For example, the target general beam can be used for the communication transmission of the PDSCH channel and the downlink reference signal, and the downlink reference signal can include at least one of SSB, CSI-RS, PRS, TRS, and DMRS; or, for another example, the target general beam can be used for the communication transmission of the PUSCH and the uplink reference signal, and the uplink reference signal can include at least one of SRS and DMRS. Similarly, the PDSCH here can include all PDSCH, or only include part of the PDSCH, such as UE dedicated PDSCH; the PUSCH here can include all PUSCH, or only include part of the PUSCH, such as UE dedicated PUSCH; the reference signals here, such as CSI-RS or SRS, can include all-purpose or at least one-purpose CSI-RS or SRS.

[0313] It should be noted that the foregoing downlink channels, uplink channels, downlink reference signals, and uplink reference signals are only for illustrative purposes. In specific implementations, they are not limited to the several channel or reference signal types listed above, and the listed reference signal types do not constitute a limitation to the scope of the present disclosure.

[0314] In a possible implementation manner of the embodiments of the present disclosure, the first indication information further includes indication information of at least two types of communication transmissions. That is to say, the indication information indicates at least two types of communication transmissions determined when the user equipment performs communication transmissions with the network device using the target common beam. For example, the indication information indicates that the communication transmissions between the user equipment and the network device using the target common beam are PDSCH channel and PDCCH channel transmissions. Among them, regarding the implementation manners of at least two types of communication transmissions, the above implementation manners have been described and will not be elaborated here.

[0315] In this embodiment, the target common beam may be a single beam or multiple beams, and this embodiment does not limit this.

[0316] In the case where the target common beam is multiple beams, it is necessary to determine the target common beam corresponding to each TRP or determine the target common beam corresponding to each control resource set pool index according to the first indication information sent by the network device. Therefore, the target TCI state index in the first indication information should correspond to the TRP or the control resource set pool index.

[0317] In the embodiments of the present disclosure, the network device sends the first indication information to the UE. After the UE receives the first indication information sent by the network device, the UE and the network device perform communication transmissions using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is sent only once, the target common beam can be used for various communication transmissions including reference signal transmissions and channel transmissions, thereby avoiding indicating the beam for each channel transmission or reference signal transmission separately and saving signaling overhead.

[0318] Figure 7 It is a schematic flowchart of another beam indication method provided for the embodiments of the present disclosure and is applied to a network device.

[0319] Based on Figure 7 the provided beam indication method, the indication manner of the target common beam is described. As Figure 7 shown, this method includes:

[0320] Step 701: Send a target common TCI state index or index combination to the user equipment UE, so that the UE determines the target common beam according to the TCI state index or index combination and performs at least two types of communication transmissions with the network device using the target common beam.

[0321] Among them, regarding the description of the user equipment and the network device, reference may be made to the explanations in any of the above embodiments, and this embodiment will not elaborate further.

[0322] In this embodiment, the first indication information received by the user equipment includes a target common transmission configuration indication (TCI) status index or an index combination sent by the network device. Among them, the target common TCI status index combination can be determined by a combination identifier. For example, 01 and 02 respectively indicate different index combinations; alternatively, different index combinations can be indicated by different code points, such as code point 000 and 001 of 3 bits respectively indicating different index combinations. Each of the different index combinations includes one or more TCI status indexes. And the target common transmission configuration indication TCI status index can be one or more. Among them, the target common TCI status index corresponds to one or more reference signals (RS), and each reference signal is used to indicate at least one of the uplink target common beam and the downlink target common beam.

[0323] In this embodiment, the target common TCI status index includes at least one of a downlink target common TCI status index, an uplink target common TCI status index, and an uplink and downlink target common TCI status index.

[0324] It should be understood that the reference signal corresponding to the downlink target common TCI status index, for example, RS, is not used to indicate the target common beam of the uplink channel or the uplink reference signal; the reference signal corresponding to the uplink target common TCI status index, for example, RS, is not used to indicate the target common beam of the downlink channel or the downlink reference signal. The reference signal corresponding to the uplink and downlink target common TC status index, for example, RS, can simultaneously indicate the target common beam of the uplink transmission or the downlink transmission, and is indicated by one reference signal RS or two reference signals RS respectively.

[0325] As an implementation manner, the network device configures the correspondence between the target common TCI status index and the reference signal RS through radio resource control (RRC) signaling. Among them, after the UE obtains the target TCI status index, according to the target TCI status index, by querying the correspondence between the TCI status index and RS, the UE can obtain the reference signal RS corresponding to the target TCI status index. Correspondingly, the UE determines the corresponding beam according to the reference signal RS. Optionally, the correspondence between the TCI status index and RS can be in the form of a TCI table or other forms. Taking the correspondence as the form of a TCI table as an example for illustration. The TCI table may include information such as a TCI status index (i.e., TCI State ID) and a reference signal index RS ID.

[0326] It should be noted that when the obtained target general TCI status index combination is received, the target general TCI status index included is determined according to the mapping relationship between the codepoint displayed by the identifier or bit position of the index combination and the index combination. Furthermore, according to the pre-configured correspondence between the TCI status index and the RS, the corresponding target general beam is determined.

[0327] As a possible implementation, the TCI status index sent by the network device can indicate one of the uplink target general beam and the downlink target general beam. That is to say, the uplink target general beam is indicated by the uplink target general TCI status index, and the downlink target general beam is indicated by the downlink target general TCI status index.

[0328] As another possible implementation, the target general TCI status index sent by the network device can be used to indicate the uplink target general beam and the downlink target general beam. Among them, as an implementation, the target general TCI status index sent by the network device indicates a corresponding RS for each TRP, that is, this RS indicates both the uplink target general beam and the downlink target general beam at the same time. As another implementation, the target general TCI status index sent by the network device indicates a corresponding RS for each TRP, and this RS can indicate the uplink target general beam or the downlink target general beam. As yet another implementation, the target general TCI status sent by the network device indicates two corresponding RSs for each TRP, one of the two RSs is used to indicate the uplink target general beam, and the other RS is used to indicate the downlink target general beam.

[0329] It should be noted that the target general TCI status index corresponds to a transmit-receive point TRP index or a control resource set pool index. That is to say, the target general TCI status index is common when performing multiple communication transmissions with a TRP, while different TRPs use different target general TCI status indexes; the target general TCI status index is common when performing multiple communication transmissions with a control resource set pool index, while different control resource set pool indexes use different target general TCI status indexes.

[0330] It should be understood that in one embodiment, when there is one TRP, the determined general beam is the beam corresponding to that TRP; in another embodiment, when there are multiple TRPs, different TRPs have corresponding target general TCI status indexes, and the target general TCI status index has a corresponding RS, so that the target general beam corresponding to the corresponding TPR can be determined.

[0331] Further, to enable the UE to determine the target common beam according to the target common TCI state index or index combination, at least two communication transmissions are performed between the target common beam and the network device.

[0332] In this embodiment, the network device may pre-configure the correspondence between the target common TCI state index and the RS for the UE through high-layer signaling, such as radio resource control (RRC) signaling, or a control element (MAC CE) of the media access control layer. According to this pre-configured correspondence, the UE can determine the corresponding common beam according to the target common TCI state index dynamically indicated by the network device.

[0333] Among them, in the embodiments of the present disclosure, the user equipment performs at least two communication transmissions using the determined target common beam. Among them, the communication transmission includes the transmission of channels and / or reference signals, which can be implemented in any one of the embodiments of the present disclosure respectively. The embodiments of the present disclosure do not limit this and will not be elaborated further.

[0334] In the embodiments of the present disclosure, the network device sends the first indication information of the target common beam to the UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device perform communication transmission using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding the indication of the beam for each channel transmission or reference signal transmission respectively, and saving signaling overhead.

[0335] Figure 8 It is a schematic flowchart of another beam indication method provided by the embodiments of the present disclosure, which is applied to the network device.

[0336] A possible way to carry the first indication information of the target common beam is provided in the present disclosure, as Figure 8 shown. The method includes:

[0337] Step 801: Send a control element (MAC CE) signaling of the media access control layer to the UE.

[0338] Among them, the descriptions of the user equipment and the network device can refer to the explanations in any of the above embodiments, and will not be elaborated further in this embodiment.

[0339] Among them, the MAC CE carries the second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to one TRP index or one control resource set pool index.

[0340] The MAC CE signaling contains an indication bit, and the second indication information for activating one or more TCI state indexes is recorded in the indication bit. That is to say, the second indication information indicates one or more TCI state indexes to be activated.

[0341] Optionally, the MAC CE has a corresponding indication bit for each TCI state index. Thus, the UE determines the corresponding TCI state index according to the second indication information in the indication bit, and one TCI state index corresponds to one TRP index or one control resource set pool index.

[0342] It should be noted that the beam includes an uplink beam, a downlink beam, and an uplink-downlink common beam. One or more beams can be activated for each TRP. Among them, the activated beams can include at least one uplink beam, and / or at least one downlink beam or at least one uplink-downlink common beam. In this embodiment, the number of activated beams is not limited.

[0343] Furthermore, the UE determines the first indication information according to one or more TCI state indexes activated by the second indication information.

[0344] In this embodiment, one TCI state index corresponds to one TRP index or one control resource set pool index.

[0345] In a possible scenario, the number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is one. Thus, the one TCI state index activated by the second indication information is determined as the first indication information. For example: If one TCI state index is activated for one TRP, then the TCI state index corresponding to this TRP is the activated TCI state index. For example, if the activated TCI state index corresponds to a downlink target common TCI state index, then the reference signal corresponding to the activated TCI state index indicates a downlink target common beam, and the downlink target common beam of this TRP is the downlink beam indicated by the reference signal corresponding to this TCI state index. Another example: If the activated TCI state index corresponds to an uplink target common TCI state index, then the reference signal corresponding to the activated TCI state index indicates an uplink target common beam, and the uplink target common beam of this TRP is the uplink beam indicated by the reference signal corresponding to this TCI state index. Another example: If the activated TCI state index corresponds to a target common TCI state index, then the reference signal corresponding to the activated TCI state index indicates an uplink target common beam and a downlink target common beam. Then the uplink target common beam and the downlink target common beam of this TRP are the uplink beam and the downlink beam indicated by the reference signal corresponding to this TCI state index.

[0346] In another possible scenario, if the number of TCI state indices activated by the second indication information for a TRP index or a control resource set pool index is multiple, it is necessary to determine one target TCI state index or index combination corresponding to the corresponding TRP index or control resource set pool index from the multiple TCI state indices as the first indication information. As an implementation manner, receive the first downlink control information DCI signaling sent by the network device, where the first DCI signaling carries the first indication information, and the first indication information includes one target general TCI state index or index combination among the multiple TCI state indices activated by the second indication information.

[0347] It should be noted that the index combination includes multiple general TCI state indices, and different TCI state indices correspond to different TRPs or different control resource set pool indices.

[0348] Among them, in the embodiments of the present disclosure, the user equipment uses the determined target general beam for at least two types of communication transmissions, where the communication transmissions include the transmission of channels and / or reference signals, and can be implemented in any one of the embodiments of the present disclosure respectively. The embodiments of the present disclosure do not limit this and will not elaborate further.

[0349] In the embodiments of the present disclosure, the network device sends the first indication information of the target general beam to the UE, so that after the UE receives the first indication information of the target general beam sent by the network device, the UE and the network device use the target general beam for communication transmissions on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target general beam is only sent once, the target general beam can be used for multiple communication transmissions including reference signal transmission and channel transmission, thus avoiding indicating the beam for each channel transmission or reference signal transmission respectively and saving signaling overhead.

[0350] Figure 9 It is a flowchart of another beam indication method provided by the embodiments of the present disclosure, and this method is executed by the network device.

[0351] A possible bearing manner of the first indication information of the target general beam is provided in the present disclosure, as Figure 9 shown, and this method includes:

[0352] Step 901, send the first downlink control information DCI signaling to the UE.

[0353] Among them, the descriptions of the user equipment and the network device can refer to the explanations in any of the above embodiments, and will not be elaborated further in this embodiment.

[0354] Among them, the first DCI signaling contains the first indication information of the target common beam. That is to say, the target common TCI state index or index combination, and the resource configuration information are in different DCI signalings, while the first DCI signaling contains the target common TCI state index or index combination, that is, the first indication information.

[0355] The first DCI signaling can be based on a single TRP or multiple TRPs, and this is not limited in this embodiment.

[0356] In a possible implementation manner of the embodiment of the present disclosure, the UE receives one or more transmissions of the first DCI signaling by using one or more receiving beams. That is to say, the network device uses one or more TRPs to send the first DCI signaling one or more times, and each TRP corresponds to a different beam, avoiding occlusion during signal transmission and improving communication quality to ensure receiving the first DCI signaling.

[0357] Step 902, receive the first hybrid automatic repeat request (HARQ) feedback information sent by the UE.

[0358] Among them, the first HARQ feedback information is used to indicate whether the network device successfully receives the first DCI signaling.

[0359] Among them, the HARQ feedback resource used by the UE to send the first HARQ feedback information is configured by the first DCI signaling or set by default.

[0360] In a possible scenario, the number of times the network device sends the first DCI signaling can be one. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the first HARQ feedback information can be one or more.

[0361] In another possible scenario, the number of times the network device sends the first DCI signaling can be multiple. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the first HARQ feedback information can be one or more.

[0362] Optionally, each time the UE receives the first DCI signaling, it sends the first HARQ feedback information once.

[0363] Alternatively, the network device repeatedly sends the first DCI signaling at N transmission times respectively. Correspondingly, the UE is configured with L candidate PUCCH / PUSCH resources for sending the first HARQ feedback information, where L is less than or equal to N, and some of the L candidate PUCCH / PUSCH resources are before the end of the N transmission times, and some are after the end of the N transmission times. If the UE correctly receives the first DCI signaling before the N transmission times, the UE can select a candidate PUCCH / PUSCH resource to send the first HARQ feedback information before the N transmission times. If the UE correctly receives the first DCI signaling at or after the end of the N transmission times, the UE can select another candidate PUCCH / PUSCH resource to send the first HARQ feedback information after the end of the N transmission times.

[0364] Alternatively, the network device repeatedly sends the first DCI signaling at N transmission times respectively. Correspondingly, the UE is configured with 1 candidate PUCCH / PUSCH resource for sending the first HARQ feedback information, and the UE can send the first HARQ feedback information after the end of the N transmission times.

[0365] Furthermore, when the UE communicates with the network device subsequently, at least two communication transmissions are performed with the network device using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0366] In one example of this embodiment, the transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0367] In another example of this embodiment, the transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0368] Step 903: Send the second DCI signaling to the UE on the PDCCH so that the UE receives the second DCI signaling using the target common beam.

[0369] In this embodiment, for ease of explanation, the DCI signaling carrying the transmission resource configuration information is referred to as the second DCI signaling.

[0370] Among them, the second DCI signaling carries resource configuration information for configuring the transmission resources of reference signals, physical random access channel PRACH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, and / or physical downlink shared channel PDSCH.

[0371] Among them, the configured reference signals may specifically include at least one of the following reference signals:

[0372] Including a channel state information reference signal CSI-RS;

[0373] Synchronization signal block SSB;

[0374] Demodulation reference signal DMRS;

[0375] Positioning reference signal PRS;

[0376] Tracking reference signal TRS;

[0377] Sounding reference signal SRS.

[0378] The above reference signals can be used in different scenarios. For example, beam measurement, channel state information measurement, path loss estimation, antenna handover, positioning measurement, channel estimation during demodulation, or synchronization tracking, etc. are not listed one by one in this embodiment. In specific implementation, it is not limited to the several reference signal types listed above, and the listed reference signal types do not constitute a limitation to the scope of the present disclosure.

[0379] It should be understood that the second DCI signaling can be the first DCI signaling after the first DCI signaling is sent. And the transmission time interval between the first DCI signaling and the second DCI signaling is sufficient for the user equipment and the network equipment to complete the HARQ feedback, that is, the time interval is sufficient for the user equipment to decode the received first DCI signaling and feedback HARQ to the network equipment.

[0380] In the embodiment of the present disclosure, the network equipment sends the first indication information of the target common beam to the UE. Thus, after the UE receives the first indication information of the target common beam sent by the network equipment, the UE and the network equipment perform communication transmission using the target common beam on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

[0381] Figure 10 It is a schematic flowchart of another beam indication method provided by the embodiment of the present disclosure, and this method is executed by the network equipment.

[0382] A possible bearing manner of the first indication information of the target common beam is provided in the present disclosure, as Figure 10 shown. This method includes:

[0383] Step 1001, sending a first downlink control information DCI signaling to the UE.

[0384] Among them, the descriptions of the user equipment and the network equipment can refer to the explanations in any of the above embodiments, which will not be elaborated in this embodiment.

[0385] In this embodiment, the first DCI signaling includes first indication information and resource configuration information carrying resource configuration for at least one of a reference signal, PRACH, PUSCH, PUCCH, and PDSCH for transmission.

[0386] As a possible implementation, if the first DCI signaling carries resource configuration information for downlink transmission resources, then the first DCI signaling is DCI signaling for downlink resource scheduling, and a preset DCI signaling can be used, for example, DCI format1_0, 1_1, or 1_2, or a redefined DCI signaling can be used. In this embodiment, they are not listed one by one and are not limited.

[0387] As another possible implementation, if the first DCI signaling carries resource configuration information for uplink transmission resources, then the first DCI signaling is DCI signaling for uplink resource scheduling, and a preset DCI signaling can be used, for example, DCI format0_0, 0_1, or 0_2, or a redefined DCI signaling can be used. In this embodiment, they are not listed one by one and are not limited.

[0388] As a third possible implementation, if the first DCI signaling carries resource configuration information for uplink and downlink transmission resources, then the first DCI signaling is DCI signaling for uplink and downlink resource scheduling.

[0389] The first DCI signaling can be DCI signaling for resource configuration for a single TRP or for multiple TRPs, which is not limited in this embodiment.

[0390] Step 1002, receive the second HARQ feedback information sent by the UE.

[0391] In this embodiment, when HARQ feedback resources are configured, send the second HARQ feedback information to the network device.

[0392] Among them, the second HARQ feedback information sent by the UE to the network device can use the same beam as that for sending the first DCI signaling, or can use the target common beam indicated by the first indication information included in the first DCI signaling, which is not limited in this embodiment.

[0393] As a possible implementation, if the network device schedules two HARQ feedback resources through the first DCI signaling, or the UE is pre-configured with two HARQ feedback resources, then the second HARQ feedback information includes: first feedback information for feedbacking whether the first DCI signaling is successfully received, and second feedback information for feedbacking whether the PDSCH or downlink reference signal configured by the first DCI signaling is successfully received.

[0394] As another possible implementation, if the network device schedules one HARQ feedback resource through the first DCI signaling, or the UE is pre-configured with one HARQ feedback resource, then the second HARQ feedback information includes: first feedback information and second feedback information, and both share the HARQ feedback resource.

[0395] In one implementation of this embodiment, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is set by default.

[0396] In one implementation of this embodiment, the HARQ feedback resources for sending the first feedback information and / or the second feedback information are the same HARQ feedback resource or different HARQ feedback resources.

[0397] In an example, when the HARQ feedback resources for sending the first feedback information and / or the second feedback information are the same HARQ feedback resource, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0398] In a possible scenario, the number of times the network device sends the first DCI signaling can be one. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the second HARQ feedback information can be one or more.

[0399] In another possible scenario, the number of times the network device sends the first DCI signaling can be multiple times. Correspondingly, the candidate PUCCH / PUSCH resources for the UE to send the second HARQ feedback information can be one or more. Optionally, the UE sends the second HARQ feedback information once for each reception of the first DCI signaling. Alternatively, optionally, the network device repeatedly sends the first DCI signaling at N transmission times. Correspondingly, the UE is configured with L candidate PUCCH / PUSCH resources for sending the first HARQ feedback information, where L is less than or equal to N, and some of the L candidate PUCCH / PUSCH resources are before the end of the N transmission times and some are after the end of the N transmission times. If the UE correctly receives the first DCI signaling before the N transmission times, the UE can select a candidate PUCCH / PUSCH resource and send the second HARQ feedback information before the N transmission times. If the UE correctly receives the first DCI signaling at or after the end of the N transmission times, the UE can select a candidate PUCCH / PUSCH resource and send the second HARQ feedback information after the end of the N transmission times. Alternatively, optionally, the network device repeatedly sends the first DCI signaling at N transmission times. Correspondingly, the UE is configured with 1 candidate PUCCH / PUSCH resource for sending the first HARQ feedback information, and the UE can send the second HARQ feedback information after the end of the N transmission times.

[0400] In an example of this embodiment, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0401] In another example of this embodiment, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0402] Step 1003: Perform communication transmission with the UE according to the resource configuration information carried in the first DCI signaling.

[0403] In this embodiment, when not sending HARQ feedback separately for whether the first DCI signaling is received successfully, the network device determines whether the UE has correctly received the first DCI signaling, that is, whether the network device has completed configuration, according to whether the UE performs communication transmission with the network device using the configured transmission resources.

[0404] In an implementation manner of this embodiment, when the time interval between the UE performing communication transmission and receiving the first DCI signaling is less than a threshold, the communication transmission uses the same beam as the first DCI signaling.

[0405] In another implementation of this embodiment, when the time interval between the communication transmission of the user equipment and the reception of the first DCI signaling is greater than or equal to a threshold, the communication transmission uses the target common beam corresponding to the target common TCI state index in the first DCI signaling.

[0406] In the embodiment of the present disclosure, the threshold in step 1003 is default set in the UE. As a possible implementation, the threshold may be determined by the network device; as another possible implementation, the threshold may be determined by the network device according to the historical transmission time. This embodiment does not make a limitation.

[0407] As a possible implementation, the network device sends threshold indication information to the UE according to the reference time sent by the UE. The reference time includes the decoding time of the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or the reference time includes the HARQ feedback time corresponding to the first DCI signaling, and the beam switching time. Thus, the user equipment can determine that it can complete including the decoding of the first DCI signaling, HARQ feedback, and beam switching within the reference time; or complete including HARQ feedback and beam switching.

[0408] As a possible implementation, the threshold determined by the network device is greater than or equal to the reference time.

[0409] In this embodiment, communication transmission, including the user equipment sending an uplink transmission and / or receiving a downlink transmission to / from the network device, is taken as an example for specific illustration.

[0410] In this embodiment, in the case where the HARQ feedback resource for whether the first DCI signaling is received successfully is not separately configured, the network device determines whether the UE has correctly received the first DCI signaling according to whether the UE uses the configured transmission resources to send an uplink transmission to the network device; or the network device uses the configured transmission resources to send a downlink transmission to the user equipment, and determines whether the UE has correctly received and decoded the first DCI signaling according to the HARQ feedback information fed back by whether the UE correctly receives and decodes the downlink transmission.

[0411] It should be noted that when the time interval between the uplink transmission and / or downlink transmission and the first DCI signaling is less than the threshold, the uplink transmission and / or downlink transmission use the same beam as the first DCI signaling. When the time interval between the uplink transmission and / or downlink transmission and the first DCI signaling is greater than or equal to the threshold, the uplink transmission and / or downlink transmission use the same beam as the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling. Among them, the threshold is at least one of the time required for the UE to decode the first DCI signaling, the time required for the UE to feedback to the network device whether the first DCI signaling is correctly received, and the beam switching time. This time threshold can be determined through negotiation between the UE and the network device.

[0412] After the network device determines that the UE has correctly received the first DCI signaling, when the UE and the network device perform subsequent communication transmissions, the target common beam can be applied when performing at least two communication transmissions with the network device.

[0413] Furthermore, starting from the moment when the first DCI signaling is received, timing is determined, and at least two communication transmissions are not performed until the aforementioned threshold is reached, that is, the target common beam is used to transmit the channel and / or reference signal in at least two communication transmissions with the network device, saving signaling overhead.

[0414] In the embodiments of the present disclosure, regarding the user equipment using the target common beam to perform at least two communication transmissions with the network device, where the communication transmission includes the transmission of the channel and / or reference signal, the embodiments of the present disclosure do not make any limitations in this regard and will not elaborate further.

[0415] In the embodiments of the present disclosure, the network device sends the first indication information of the target common beam to the UE. Thus, after the UE receives the first indication information of the target common beam sent by the network device, the target common beam is used for communication transmission with the network device on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

[0416] A possible beam indication and switching method is provided in the present disclosure. In this embodiment, as a possible implementation manner, the third indication information is sent to the UE, and the third indication information is used to indicate that the UE uses the target common beam or a dedicated beam to perform at least two communication transmissions.

[0417] In one implementation, the third indication information received by the user equipment may be received before the user equipment receives the first indication information. Thus, the user equipment determines to use a target common beam or a dedicated beam for at least two communication transmissions according to the third indication information. In one example, when it is determined to use a dedicated beam for at least two communication transmissions, at least two communication transmissions are performed according to the indicated dedicated beam, where the signaling for indicating the dedicated beam for each communication transmission is different signaling. In another example, when it is determined to use a target common beam for at least two communication transmissions, the target common beam to be used for communication transmission is further determined according to the obtained first indication information. For the specific implementation, reference may be made to the implementation in any of the above embodiments, which will not be elaborated in this embodiment.

[0418] In another implementation, the third indication information received by the user equipment may be received after the user equipment receives the first indication information. Further, the network device determines, according to the received third indication information, that it is necessary to switch the target common beam to a dedicated beam, and the dedicated beam needs to send signaling for independent indication for each channel and / or each reference signal. In one possible application scenario, the network device needs to switch a certain channel or reference signal to a dedicated beam, so that it can only send the indication information of the dedicated beam corresponding to the channel or reference signal, and the other channels or reference signals that have not received the indication information of the dedicated beam will continue to use the target common beam. In another possible application scenario, the network device may switch all channels and / or reference signals currently using the target common beam to dedicated beams, and send the indication information of the dedicated beams for each channel and / or reference signal respectively.

[0419] Corresponding to the beam indication methods provided in the above several embodiments, the present disclosure also provides a beam indication device. Since the beam indication device provided in the embodiments of the present disclosure corresponds to the methods provided in the above several embodiments, the implementation manners of the beam indication method are also applicable to the beam indication device provided in this embodiment, and will not be described in detail in this embodiment.

[0420] Figure 11 It is a schematic structural diagram of a beam indication device 110 provided in an embodiment of the present disclosure. The device is applied to a user equipment.

[0421] As Figure 11 shown, the beam indication device 110 includes: an acquisition module 1101 and an execution module 1102, where:

[0422] The acquisition module 1101 is configured to acquire first indication information, where the first indication information is used to indicate a target common beam;

[0423] The execution module 1102 is configured to perform at least two types of communication transmissions with the network device using the target common beam, where the communication transmissions include the transmission of channels and / or reference signals.

[0424] Further, in a possible implementation manner of the present disclosure, the first indication information includes a target common transmission configuration indication (TCI) status index or an index combination.

[0425] In a possible implementation manner of the present disclosure, the target common TCI status index corresponds to a transmit receive point (TRP) index or a control resource set pool index.

[0426] In a possible implementation manner of the present disclosure, the target common TCI status index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of the uplink target common beam and the downlink target common beam.

[0427] In a possible implementation manner of the present disclosure, the acquisition module 1101 includes:

[0428] A receiving unit, configured to receive the media access control layer control unit (MAC CE) signaling sent by the network device, where the MAC CE carries second indication information for activating one or more TCI status indexes, and one TCI status index corresponds to a TRP index or a control resource set pool index.

[0429] A determining unit, configured to determine the first indication information according to the one or more TCI status indexes activated by the second indication information.

[0430] Further, in a possible implementation manner of the present disclosure, the number of TCI status indexes activated by the second indication information for a TRP index or a control resource set pool index is one, and the above determining unit is configured to:

[0431] Determine the one TCI status index activated by the second indication information as the first indication information.

[0432] In a possible implementation manner of the present disclosure, the number of TCI status indexes activated by the second indication information for a TRP index or a control resource set pool index is multiple, and the above determining unit is further configured to:

[0433] Receive the first downlink control information (DCI) signaling sent by the network device, where the first DCI signaling carries the first indication information; where the first indication information includes a target common TCI status index or an index combination among the multiple TCI status indexes activated by the second indication information.

[0434] In a possible implementation manner of the present disclosure, the apparatus further includes:

[0435] A sending module, configured to send first Hybrid Automatic Repeat reQuest (HARQ) feedback information to the network device;

[0436] Wherein, the first HARQ feedback information is used to indicate to the network device whether the first Downlink Control Information (DCI) signaling is successfully received;

[0437] The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or is set by default.

[0438] In a possible implementation manner of the present disclosure, the above-mentioned execution module 1102 is configured to:

[0439] Receive the second DCI signaling sent by the network device on the Physical Downlink Control Channel (PDCCH) by using the target common beam;

[0440] Wherein, the second DCI signaling carries resource configuration information for configuring transmission resources of a reference signal, a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), and / or a Physical Downlink Shared Channel (PDSCH).

[0441] In a possible implementation manner of the present disclosure, the first DCI signaling also carries resource configuration information for configuring transmission resources of at least one of a reference signal, a PRACH, a PUSCH, a PUCCH, and a PDSCH.

[0442] In a possible implementation manner of the present disclosure, the above-mentioned sending module is further configured to:

[0443] Send second HARQ feedback information to the network device;

[0444] Wherein, the second HARQ feedback information includes:

[0445] First feedback information, used to feedback whether the first DCI signaling is successfully received;

[0446] And / or,

[0447] Second feedback information, used to feedback whether the PDSCH and / or the downlink reference signal configured by the first DCI signaling are successfully received.

[0448] In a possible implementation manner implemented in the present disclosure, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is set by default.

[0449] In a possible implementation manner implemented in the present disclosure, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

[0450] In a possible implementation manner implemented in the present disclosure, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0451] In a possible implementation manner implemented in the present disclosure, the transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0452] In a possible implementation manner implemented in the present disclosure, the transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0453] In a possible implementation manner implemented in the present disclosure, the apparatus further includes:

[0454] A communication module, configured to perform communication transmission with the network device by using the configured transmission resources according to the resource configuration information carried in the first DCI signaling.

[0455] In a possible implementation manner implemented in the present disclosure, when the time interval between the communication transmission and the first DCI signaling is less than a threshold, the communication transmission uses the same beam as the first DCI signaling; when the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold, the communication transmission uses the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0456] In a possible implementation manner implemented in the present disclosure, the threshold is notified by the network device;

[0457] The above-mentioned sending module is further configured to send a reference time to the network device, and the reference time is used for the network device to determine the threshold;

[0458] Wherein, the reference time includes the decoding time of the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or, the reference time includes the HARQ feedback time corresponding to the first DCI signaling, and the beam switching time.

[0459] In a possible implementation manner of the present disclosure, the threshold is default set in the UE.

[0460] In a possible implementation manner of the present disclosure, the UE receives one or more transmissions of the first DCI signaling by using one or more receiving beams.

[0461] In a possible implementation manner of the present disclosure, the first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for both uplink and downlink resource scheduling, or a DCI signaling only for indicating the common target beam for both uplink and downlink.

[0462] In a possible implementation manner of the present disclosure, the target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and a common TCI state index for both uplink and downlink.

[0463] In a possible implementation manner of the present disclosure, the obtaining module 1101 is further configured to:

[0464] Receive third indication information sent by a network device, where the third indication information is used to indicate that the UE uses the target common beam or a dedicated beam for the at least two communication transmissions.

[0465] In a possible implementation manner of the present disclosure, the first indication information further includes indication information of the at least two communication transmissions.

[0466] In a possible implementation manner of the present disclosure, the channel includes at least one or a combination of the following:

[0467] Physical downlink control channel PDCCH;

[0468] Physical downlink shared channel PDSCH;

[0469] Physical uplink control channel PUCCH;

[0470] Physical uplink shared channel PUSCH;

[0471] Physical broadcast channel PBCH;

[0472] Random access channel PRACH.

[0473] In a possible implementation manner implemented in the present disclosure, the reference signal includes at least one or a combination of more than one of the following:

[0474] Channel State Information Reference Signal CSI-RS;

[0475] Synchronization Signal Block SSB;

[0476] Demodulation Reference Signal DMRS;

[0477] Positioning Reference Signal PRS;

[0478] Tracking Reference Signal TRS;

[0479] Sounding Reference Signal SRS.

[0480] In an embodiment of the present disclosure, the network device sends first indication information of a target common beam to the UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device apply the target common beam for communication transmission on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is only sent once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding indicating the beam for each channel transmission or reference signal transmission respectively, and saving signaling overhead.

[0481] Corresponding to the beam indication methods provided in the above several embodiments, the present disclosure also provides a beam indication device. Since the beam indication device provided in the embodiments of the present disclosure corresponds to the beam indication methods provided in the above several embodiments, the implementation manners of the beam indication method are also applicable to the beam indication device provided in this embodiment, and will not be described in detail in this embodiment.

[0482] Figure 12 It is a schematic structural diagram of a beam indication device 120 provided in an embodiment of the present disclosure. The device is applied to a network device.

[0483] As Figure 12 shown, the beam indication device 120 includes: an indication module 1201.

[0484] The indication module 1201 is configured to send first indication information to a user equipment UE, where the first indication information is used to indicate a target common beam, so that the UE uses the target common beam to perform at least two types of communication transmissions with the network device, where the communication transmissions include channel and / or reference signal transmissions.

[0485] Further, in a possible implementation manner of the embodiments of the present disclosure, the first indication information includes a target common transmission configuration indication (TCI) state index or an index combination.

[0486] Further, in a possible implementation manner of the embodiments of the present disclosure, the target common TCI state index corresponds to a transmit receive point (TRP) index or a control resource set pool index.

[0487] Further, in a possible implementation manner of the embodiments of the present disclosure, the target common TCI state index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

[0488] Further, in a possible implementation manner of the embodiments of the present disclosure, the above indication module 1201 is configured to:

[0489] Send a media access control layer control element (MAC CE) signaling to the UE, where the MAC CE carries second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to a TRP index or a control resource set pool index; wherein, the one or more TCI state indexes activated by the second indication information are used to determine the first indication information.

[0490] In a possible implementation manner of the embodiments of the present disclosure, the number of TCI state indexes activated by the second indication information for a TRP index or a control resource set pool index is one; wherein, the first indication information represents one TCI state index activated by the second indication information.

[0491] In a possible implementation manner of the embodiments of the present disclosure, the number of TCI indexes activated by the second indication information for a TRP index or a control resource set pool index is multiple; the above indication module 1201 is configured to:

[0492] Send a first downlink control information (DCI) signaling to the UE, and the first DCI signaling carries the first indication information; wherein, the first indication information includes a target common TCI state index or an index combination among the multiple TCI state indexes activated by the second indication information.

[0493] In a possible implementation manner of the embodiments of the present disclosure, the device further includes:

[0494] A receiving module, configured to receive a first hybrid automatic repeat request (HARQ) feedback information sent by the UE.

[0495] The first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is successfully received;

[0496] The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or set by default.

[0497] In a possible implementation manner of the embodiments of the present disclosure, the apparatus further includes:

[0498] A sending module, configured to send second DCI signaling to the UE on a PDCCH, so that the UE receives the second DCI signaling by using the target common beam;

[0499] The second DCI signaling carries resource configuration information for configuring transmission resources of a reference signal, a physical random access channel PRACH, a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and / or a physical downlink shared channel PDSCH.

[0500] In a possible implementation manner of the embodiments of the present disclosure, the first DCI signaling further carries resource configuration information for configuring transmission resources of at least one of a reference signal, PRACH, PUSCH, PUCCH, and PDSCH.

[0501] In a possible implementation manner of the embodiments of the present disclosure, the above receiving module is further configured to:

[0502] Receive second HARQ feedback information sent by the UE;

[0503] The second HARQ feedback information includes:

[0504] First feedback information, used to feedback whether the first DCI signaling is successfully received;

[0505] And / or,

[0506] Second feedback information, used to feedback whether the PDSCH and / or downlink reference signal configured by the first DCI signaling is successfully received.

[0507] In a possible implementation manner of the embodiments of the present disclosure, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or set by default.

[0508] In a possible implementation manner of the embodiments of the present disclosure, the HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

[0509] In a possible implementation manner of the embodiment of the present disclosure, the first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

[0510] In a possible implementation manner of the embodiment of the present disclosure, the transmission beam for transmitting the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0511] In a possible implementation manner of the embodiment of the present disclosure, the transmission beam for transmitting the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

[0512] In a possible implementation manner of the embodiment of the present disclosure, the device further includes:

[0513] A communication module, configured to perform communication transmission with the UE according to the resource configuration information carried in the first DCI signaling.

[0514] In a possible implementation manner of the embodiment of the present disclosure, indicating that the time interval between the communication transmission and the first DCI signaling is less than a threshold indicates that the UE is instructed to perform the communication transmission using the same beam as the first DCI signaling; indicating that the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold indicates that the UE is instructed to perform the communication transmission using the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

[0515] In a possible implementation manner of the embodiment of the present disclosure, the above-mentioned transmission module is further configured to:

[0516] Receive the reference time sent by the UE and send the threshold indication information to the UE;

[0517] wherein the reference time includes the time taken by the UE to decode the first DCI signaling and its corresponding HARQ feedback time, as well as the beam switching time; or the reference time includes the HARQ feedback time corresponding to the first DCI signaling by the UE, as well as the beam switching time.

[0518] In a possible implementation manner of the embodiment of the present disclosure, the first DCI signaling is sent one or more times, and the UE is instructed to receive the first DCI signaling by using one or more receiving beams.

[0519] In a possible implementation manner of the embodiment of the present disclosure, the first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for both uplink and downlink resource scheduling, or a DCI signaling only for both uplink and downlink target common beam indication.

[0520] In a possible implementation manner of the embodiment of the present disclosure, the target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and a both uplink and downlink target common TCI state index.

[0521] In a possible implementation manner of the embodiment of the present disclosure, the above sending module is further configured to send third indication information to the UE, and the third indication information is used to instruct the UE to perform the at least two types of communication transmissions by using the target common beam or a dedicated beam.

[0522] In a possible implementation manner of the embodiment of the present disclosure, the first indication information further includes indication information of the at least two types of communication transmissions.

[0523] In a possible implementation manner of the embodiment of the present disclosure, the channel includes at least one or a combination of the following:

[0524] Physical downlink control channel PDCCH;

[0525] Physical downlink shared channel PDSCH;

[0526] Physical uplink control channel PUCCH;

[0527] Physical uplink shared channel PUSCH;

[0528] Physical broadcast channel PBCH;

[0529] Random access channel PRACH.

[0530] In a possible implementation manner of the embodiment of the present disclosure, the reference signal includes at least one or a combination of the following:

[0531] Channel state information reference signal CSI-RS;

[0532] Synchronization signal block SSB;

[0533] Demodulation reference signal DMRS;

[0534] Positioning Reference Signal PRS;

[0535] Tracking Reference Signal TRS;

[0536] Sounding Reference Signal SRS.

[0537] In an embodiment of the present disclosure, the network device sends first indication information of a target common beam to the UE. After the UE receives the first indication information of the target common beam sent by the network device, the UE and the network device apply the target common beam for communication transmission on at least two channels, or at least two reference signals, or at least one reference signal and at least one channel. Since the first indication information of the target common beam is sent only once, the target common beam can be used for various communication transmissions including reference signal transmission and channel transmission, thereby avoiding separately indicating the beam for each channel transmission or reference signal transmission and saving signaling overhead.

[0538] To implement the above embodiment, the present disclosure also proposes a communication device.

[0539] The communication device provided in an embodiment of the present disclosure includes a processor, a transceiver, a memory, and an executable program stored on the memory and capable of running on the processor. When the processor runs the executable program, the foregoing method is executed.

[0540] The communication device may be the foregoing network device or terminal.

[0541] Among them, the processor may include various types of storage media, which are non-temporary computer storage media and can continue to remember and store the information thereon after the communication device is powered off. Here, the communication device includes a network device or a terminal.

[0542] The processor can be connected to the memory through a bus or the like for reading the executable program stored on the memory. For example, as Figures 1 to 5 , or Figures 6 to 10 at least one of them.

[0543] To implement the above embodiment, the present disclosure also proposes a computer storage medium.

[0544] The computer storage medium provided in an embodiment of the present disclosure stores an executable program; after the executable program is executed by the processor, the foregoing method can be implemented. For example, as Figures 1 to 5 , or Figures 6 to 10 at least one of them.

[0545] To implement the above embodiment, the present disclosure also proposes a computer program product, including a computer program, which when executed by the processor, implements the foregoing method. For example, as Figures 1 to 5 , orFigures 6 to 10 At least one of

[0546] Figure 13 FIG. is a block diagram of a communication device for the beam indication method of the present disclosure embodiment. The communication device is intended to represent various forms of digital computers, such as, laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The communication device may also represent various forms of mobile devices, such as, personal digital processors, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0547] As Figure 13 shown, the communication device includes: one or more processors 1300, a memory 1400, and an interface for connecting the components, including a high-speed interface and a low-speed interface. Each component is interconnected using different buses and may be installed on a common motherboard or otherwise as required. The processor may process instructions executed within the communication device, including instructions stored in the memory or on the memory to display graphical information of a GUI on an external input / output device (such as, a display device coupled to the interface). In other embodiments, multiple processors and / or multiple buses may be used in conjunction with multiple memories and multiple memories if desired. Similarly, multiple communication devices may be connected, each device providing a portion of the necessary operations (such as, as a server array, a set of blade servers, or a multi-processor system). Figure 13 In the example, one processor 1300 is taken.

[0548] The memory 1400 is the non-transitory computer-readable storage medium provided by the present disclosure. Among them, the memory stores instructions executable by at least one processor, so that the at least one processor executes the beam indication method provided by the present disclosure. The non-transitory computer-readable storage medium of the present disclosure stores computer instructions for causing a computer to execute the beam indication method provided by the present disclosure.

[0549] The memory 1400, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions / modules corresponding to the beam indication method in the embodiments of the present disclosure (for example, attached Figure 11 shown acquisition module 1101 and execution module 1102, or attached Figure 12The indicated indication module 1201). The processor 1300 executes various functional applications and data processing of the server by running non-transitory software programs, instructions, and modules stored in the memory 1400, that is, implements the beam indication method in the above method embodiments.

[0550] The memory 1400 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the positioning communication device, etc. In addition, the memory 1400 may include a high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. Optionally, the memory 1400 may optionally include a memory remotely provided with respect to the processor 1300, and these remote memories may be connected to the positioning communication device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0551] The communication device may further include: an input device 1500 and an output device 1600. The processor 1300, the memory 1400, the input device 1500, and the output device 1600 may be connected through a bus or other means. Figure 13 Here, the case of connection through a bus is taken as an example.

[0552] The input device 1500 may receive input digital or character information, and generate key signal inputs related to the user settings and function controls of the positioning communication device, such as input devices such as a touch screen, a keypad, a mouse, a trackpad, a touchpad, a pointing stick, one or more mouse buttons, a trackball, a joystick, etc. The output device 1600 may include a display device, an auxiliary lighting device (for example, an LED), and a tactile feedback device (for example, a vibration motor), etc. The display device may include but is not limited to a liquid crystal display (LCD), a light-emitting diode (LED) display, and a plasma display. In some embodiments, the display device may be a touch screen.

[0553] Various embodiments of the systems and techniques described herein may be implemented in digital electronic circuit systems, integrated circuit systems, dedicated ASICs (application specific integrated circuits), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and / or interpreted on a programmable system including at least one programmable processor, the programmable processor may be a dedicated or general-purpose programmable processor, and may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0554] These computing procedures (also known as programs, software, software applications, or code) include machine instructions for a programmable processor and can implement these computing procedures using high-level procedures and / or object-oriented programming languages and / or assembly / machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and / or device (e.g., a magnetic disk, an optical disk, a memory, a programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0555] For providing interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can also be used for providing interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, speech input, or tactile input).

[0556] The systems and techniques described herein can be implemented in a computing system including backend components (e.g., as a data server), or a computing system including middleware components (e.g., an application server), or a computing system including frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system including any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected to each other by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0557] A computer system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The relationship of the client and the server is generated by computer programs running on the respective computers and having a client-server relationship with each other.

[0558] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0559] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A beam indication method, characterized in that, Applied to a user equipment UE, the method includes: Obtain first indication information, where the first indication information is used to indicate a target common beam; where obtaining the first indication information includes: receiving a Media Access Control layer control unit MAC CE signaling sent by a network device, where the MAC CE carries second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to one TRP index or one control resource set pool index; determining the first indication information according to the one or more TCI state indexes activated by the second indication information; Perform at least two types of communication transmissions with the network device using the target common beam, where the communication transmissions include the transmission of uplink and downlink channels and reference signals; Where the first indication information includes a target common Transmission Configuration Indication TCI state index, and the target common TCI state index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

2. The beam indication method according to claim 1, wherein The first indication information includes a combination of target common Transmission Configuration Indication TCI state indexes.

3. The beam indication method according to claim 1, wherein The target common TCI state index corresponds to one Transmission and Reception Point TRP index or one control resource set pool index.

4. The beam indication method according to claim 1, wherein The number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is one. Determining the first indication information according to the one or more TCI state indexes activated by the second indication information includes: Determining the one TCI state index activated by the second indication information as the first indication information.

5. The beam indication method according to claim 1, characterized in that The number of TCI state indexes activated by the second indication information for one TRP index or one control resource set pool index is multiple. Determining the first indication information according to the one or more TCI state indexes activated by the second indication information includes: Receiving a first Downlink Control Information DCI signaling sent by the network device, where the first DCI signaling carries the first indication information; Where the first indication information includes one target common TCI state index or an index combination among the multiple TCI state indexes activated by the second indication information.

6. The beam indication method according to claim 5, wherein The method further includes: Sending first Hybrid Automatic Repeat reQuest HARQ feedback information to the network device; Where the first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is received successfully; The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or set by default.

7. The beam indication method according to claim 6, wherein The performing at least two types of communication transmissions with the network device using the target common beam includes: Receiving a second DCI signaling sent by the network device on a Physical Downlink Control Channel PDCCH using the target common beam; Wherein, the second DCI signaling carries resource configuration information for configuring transmission resources of a reference signal, a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and / or a physical downlink shared channel (PDSCH).

8. The beam indication method according to claim 5, wherein The first DCI signaling also carries resource configuration information for configuring transmission resources for at least one of a reference signal, PRACH, PUSCH, PUCCH, and PDSCH.

9. The beam indication method according to claim 8, wherein The method further includes: Sending second HARQ feedback information to the network device; Wherein, the second HARQ feedback information includes: First feedback information for feeding back whether the first DCI signaling is successfully received; And / or, Second feedback information for feeding back whether the PDSCH and / or downlink reference signal configured by the first DCI signaling is successfully received.

10. The beam indication method according to claim 9, wherein The HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is a default setting.

11. The beam indication method according to claim 10, wherein The HARQ feedback resource for sending the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

12. The beam indication method according to claim 11, wherein The first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

13. The beam indication method according to claim 6, wherein The transmission beam for sending the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

14. The beam indication method according to claim 9, wherein The transmission beam for sending the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

15. The beam indication method according to claim 8, wherein The method further includes: Performing communication transmission with the network device using the configured transmission resources according to the resource configuration information carried in the first DCI signaling.

16. The beam indication method according to claim 15, wherein When the time interval between the communication transmission and the first DCI signaling is less than a threshold, the communication transmission uses the same beam as the first DCI signaling; When the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold, the communication transmission uses the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

17. The beam indication method according to claim 16, wherein The threshold is notified by the network device; The method further includes: Sending a reference time to the network device, where the reference time is used by the network device to determine the threshold; Wherein, the reference time includes the decoding time of the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or, the reference time includes the HARQ feedback time corresponding to the first DCI signaling, and the beam switching time.

18. The beam indication method according to claim 16, wherein The threshold is default set in the UE.

19. The beam indication method according to claim 6, wherein The UE receives one or more transmissions of the first DCI signaling using one or more receiving beams.

20. The beam indication method according to claim 5, wherein The first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for both uplink and downlink resource scheduling or a DCI signaling only for both uplink and downlink target common beam indication.

21. The beam indication method according to claim 1, wherein the target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and a both uplink and downlink target common TCI state index.

22. The beam indication method according to any one of claims 1-21, characterized in that, The method further includes: Receiving third indication information sent by the network device, where the third indication information is used to indicate that the UE uses the target common beam or a dedicated beam for the at least two communication transmissions.

23. The beam indication method according to any one of claims 1-21, characterized in that, The first indication information further includes indication information of the at least two communication transmissions.

24. The beam indication method according to any one of claims 1-21, characterized in that, The channel includes at least one or a combination of the following: Physical downlink control channel PDCCH; Physical downlink shared channel PDSCH; Physical uplink control channel PUCCH; Physical uplink shared channel PUSCH; Physical broadcast channel PBCH; Random access channel PRACH.

25. The beam indication method according to any one of claims 1-21, characterized in that, The reference signal includes at least one or a combination of the following: Channel state information reference signal CSI-RS; Synchronization signal block SSB; Demodulation reference signal DMRS; Positioning reference signal PRS; Tracking reference signal TRS; Sounding reference signal SRS.

26. A beam indication method, characterized in that Applied to a network device, the method includes: Sending first indication information to a user equipment UE, where the first indication information is used to indicate a target common beam, so that the UE uses the target common beam to perform at least two communication transmissions with the network device, where the communication transmissions include the transmissions of uplink and downlink channels and reference signals; Wherein, the sending first indication information to the user equipment UE includes: sending a media access control layer control unit MAC CE signaling to the UE, where the MAC CE carries second indication information for activating one or more TCI state indexes, and one TCI state index corresponds to one TRP index or one control resource set pool index; wherein, the one or more TCI state indexes activated by the second indication information are used to determine the first indication information; Among them, the first indication information includes a target common transmission configuration indication (TCI) status index, and the target common TCI status index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

27. The beam indication method according to claim 26, wherein The first indication information includes a combination of target common transmission configuration indication (TCI) status indexes.

28. The beam indication method according to claim 26, wherein The target common TCI status index corresponds to a transmit receive point (TRP) index or a control resource set pool index.

29. The beam indication method according to claim 26, wherein The number of TCI status indexes activated by the second indication information for one TRP index or one control resource set pool index is one; Among them, the first indication information represents one TCI status index activated by the second indication information.

30. The beam indication method according to claim 26, wherein The number of TCI indexes activated by the second indication information for one TRP index or one control resource set pool index is multiple; sending the first indication information to the user equipment (UE) further includes: Sending a first downlink control information (DCI) signaling to the UE, and the first DCI signaling carries the first indication information; Among them, the first indication information includes a target common TCI status index or an index combination among the multiple TCI status indexes activated by the second indication information.

31. The beam indication method according to claim 26, wherein The method further includes: Receiving the first hybrid automatic repeat request (HARQ) feedback information sent by the UE; Among them, the first HARQ feedback information is used to indicate to the network device whether the first DCI signaling is successfully received; The HARQ feedback resource for sending the first HARQ feedback information is configured by the first DCI signaling or is set by default.

32. The beam indication method according to claim 31, wherein The method includes: Sending a second DCI signaling to the UE on a physical downlink control channel (PDCCH) so that the UE receives the second DCI signaling by using the target common beam; Among them, the second DCI signaling carries resource configuration information for configuring transmission resources of a reference signal, a physical random access channel (PRACH), a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and / or a physical downlink shared channel (PDSCH).

33. The beam indication method according to claim 31, wherein The first DCI signaling also carries resource configuration information for configuring transmission resources for at least one of a reference signal, PRACH, PUSCH, PUCCH, and PDSCH.

34. The beam indication method according to claim 33, wherein The method further includes: Receiving the second HARQ feedback information sent by the UE; Among them, the second HARQ feedback information includes: First feedback information, which is used to feedback whether the first DCI signaling is successfully received; And / or, Second feedback information, which is used to feedback whether the PDSCH and / or the downlink reference signal configured by the first DCI signaling are successfully received.

35. The beam indication method according to claim 34, wherein The HARQ feedback resource for sending the first feedback information and / or the second feedback information is configured by the first DCI signaling or is set by default.

36. The beam indication method according to claim 35, wherein The HARQ feedback resource for transmitting the first feedback information and / or the second feedback information is the same HARQ feedback resource or different HARQ feedback resources.

37. The beam indication method according to claim 36, wherein The first feedback information and / or the second feedback information correspond to the same or different bit positions in the same HARQ feedback resource.

38. The beam indication method according to claim 31, wherein The transmission beam for transmitting the first HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

39. The beam indication method according to claim 34, wherein The transmission beam for transmitting the second HARQ feedback information is the transmission beam corresponding to the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling, or is the transmission beam corresponding to the reception beam for receiving the first DCI signaling.

40. The beam indication method according to claim 33, wherein The method further includes: Performing communication transmission with the UE according to the resource configuration information carried in the first DCI signaling.

41. The beam indication method according to claim 38, wherein Indicating that the time interval between the communication transmission and the first DCI signaling is less than a threshold value indicates that the UE is instructed to perform the communication transmission using the same beam as the first DCI signaling; Indicating that the time interval between the communication transmission and the first DCI signaling is greater than or equal to the threshold value indicates that the UE is instructed to perform the communication transmission using the target common beam corresponding to the target common TCI state index or index combination in the first DCI signaling.

42. The beam indication method according to claim 41, wherein The method further includes: Receiving the reference time sent by the UE and sending the threshold indication information to the UE; wherein the reference time includes the time taken by the UE to decode the first DCI signaling and its corresponding HARQ feedback time, and the beam switching time; or the reference time includes the HARQ feedback time corresponding to the first DCI signaling by the UE and the beam switching time.

43. The beam indication method according to claim 30, wherein Sending the first DCI signaling one or more times and instructing the UE to receive the first DCI signaling using one or more reception beams.

44. The beam indication method according to claim 30, wherein The first DCI signaling is a DCI signaling for downlink resource scheduling, or a DCI signaling for uplink resource scheduling, or a DCI signaling for uplink and downlink resource scheduling, or a DCI signaling only for uplink and downlink target common beam indication.

45. The beam indication method according to claim 27, wherein The target common TCI state index includes at least one of a downlink target common TCI state index, an uplink target common TCI state index, and an uplink and downlink target common TCI state index.

46. The beam indication method according to any one of claims 26-45, characterized in that, The method further includes: Send third indication information to the UE, where the third indication information is used to indicate that the UE uses the target general beam or a dedicated beam for the at least two communication transmissions.

47. The beam indication method according to any one of claims 26-45, characterized in that, The first indication information further includes indication information of the at least two communication transmissions.

48. The beam indication method according to any one of claims 26-45, characterized in that, The channel includes at least one or a combination of more than one of the following: Physical Downlink Control Channel PDCCH; Physical Downlink Shared Channel PDSCH; Physical Uplink Control Channel PUCCH; Physical Uplink Shared Channel PUSCH; Physical Broadcast Channel PBCH; Random Access Channel PRACH.

49. The beam indication method according to any one of claims 26-45, characterized in that, The reference signal includes at least one or a combination of more than one of the following: Channel State Information Reference Signal CSI-RS; Synchronization Signal Block SSB; Demodulation Reference Signal DMRS; Positioning Reference Signal PRS; Tracking Reference Signal TRS; Sounding Reference Signal SRS.

50. A beam indicating device, characterized in that, Applied to a User Equipment UE, the apparatus includes: An obtaining module, configured to obtain first indication information, where the first indication information is used to indicate a target general beam; where obtaining the first indication information includes: receiving a Media Access Control layer Control Element MAC CE signaling sent by a network device, where the MAC CE carries second indication information for activating one or more Transmission Configuration Indicator TCI state indexes, and one TCI state index corresponds to one Transmit and Receive Point TRP index or one Control Resource Set pool index; determining the first indication information according to the one or more TCI state indexes activated by the second indication information; An execution module, configured to perform at least two communication transmissions with the network device using the target general beam, where the communication transmissions include the transmission of uplink and downlink channels and reference signals; Wherein, the first indication information includes a target general Transmission Configuration Indicator TCI state index, and the target general TCI state index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target general beam and a downlink target general beam.

51. A beam indicating device, characterized in that, Applied to a network device, the apparatus includes: An indication module, configured to send first indication information to a User Equipment UE, where the first indication information is used to indicate a target general beam, so that the UE performs at least two communication transmissions with the network device using the target general beam, where the communication transmissions include the transmission of uplink and downlink channels and reference signals; Wherein, sending the first indication information to the User Equipment UE includes: sending a Media Access Control layer Control Element MAC CE signaling to the UE, where the MAC CE carries second indication information for activating one or more Transmission Configuration Indicator TCI state indexes, and one TCI state index corresponds to one Transmit and Receive Point TRP index or one Control Resource Set pool index; and the one or more TCI state indexes activated by the second indication information are used to determine the first indication information; Wherein, the first indication information includes a target common transmission configuration indication (TCI) status index, and the target common TCI status index corresponds to one or more reference signals, and each of the reference signals is used to indicate at least one of an uplink target common beam and a downlink target common beam.

52. A communication device, wherein, Comprising: A transceiver; A memory; A processor, which is respectively connected to the transceiver and the memory, and is configured to control the wireless signal transceiver of the transceiver by executing computer-executable instructions on the memory, and can implement the method according to any one of claims 1 to 25 or 26 to 49.

53. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; after being executed by the processor, the computer-executable instructions can implement the method according to any one of claims 1 to 25 or 26 to 49.

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