Beam indication method, network side device and terminal

Abstract

The present application discloses a beam indication method, a network side device and a terminal, which belong to the field of communications. The beam indication method may include: using an indication channel to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal. The signaling overhead of the beam indication of each channel and the reference channel can be reduced.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a beam indication method, network-side equipment and a terminal. Background Art

[0002] After beam measurement and beam reporting, the network can make beam indications for the downlink and uplink channels or reference signals to establish a beam link between the network and the UE to achieve channel or reference signal transmission.

[0003] In the related art, for the beam indication of the physical downlink control channel (PDCCH), the network side uses the radio resource control (RRC) signaling to configure K transmission configuration indication (TCI) states for each control resource set (CORESET). When K>1, the media access control (MAC) control element (CE) indicates or activates 1 TCI state. When K=1, no additional MAC CE command is required. The UE can know the receiving beam of the received PDCCH based on the TCI state. For the beam indication of the PDSCH, the network side configures M TCI states through RRC signaling, and then uses the MAC CE command to activate 2 NTCI state, and then notify the TCI state through the N-bit TCI field of the downlink control information (Downlink Control Information, DCI). The UE can know the receiving beam for receiving PDSCH based on the TCI state. For the beam indication of the channel state information reference signal (CSI-RS), when the network side configures or activates a CSI-RS resource (resource) for the terminal, it indicates its quasi-colocation (QCL) information. The UE can know the receiving beam for receiving CSI-RS based on the QCL information. For the beam indication of the physical uplink control channel (PUCCH), the network side uses RRC signaling to configure spatial relation information for each PUCCH resource. If the spatial relationship information configured for the PUCCH resource contains multiple, MAC-CE is used to indicate or activate one of the spatial relationship information. The UE can know the transmit beam of the PUCCH based on the spatial relationship information. For the beam indication of the Physical Uplink Shared Channel (PUSCH), the spatial relation information of PUSCH is that when the DCI carried by the PDCCH schedules the PUSCH, a sounding reference signal resource indication (Sounding Reference Signal Resource Indicator, SRI) is indicated in the DCI, and the SRI is used to indicate the spatial relationship information of the PUSCH. The UE can obtain the transmit beam of the PUSCH based on the spatial relationship information. For the beam indication of the sounding reference signal (Sounding Reference Signal, SRS), when the SRS type is periodic SRS, the network side configures, activates or updates a spatial relation information for the SRS resource. The UE can obtain the transmit beam of the SRS based on the spatial relationship information.

[0004] In the multi-TRP (multiple transmission node) scenario, according to the way the control information is sent, the beam indication can be divided into single downlink control information (single Downlink Control Information, single DCI) and multiple downlink control information multi-DCI. The former is to send DCI in one TRP (transmission node) to schedule data transmission on multiple TRPs, and the latter is to send DCI in multiple TRPs to separately schedule data transmission on their respective TRPs.

[0005] It can be seen that in the related art, the beam indication mechanisms of various channels and reference signals are different, which leads to a large overhead of beam indication signaling. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a beam indication method, a network-side device and a terminal, so as to solve the problem of large beam indication signaling overhead caused by different beam indication mechanisms of various channels and reference signals.

[0007] In a first aspect, an embodiment of the present application provides a beam indication method, which is applied to a network side device, including:

[0008] An indication channel is used to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0009] In a second aspect, an embodiment of the present application provides a beam indication method, which is applied to a terminal, including:

[0010] Receive first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target object includes at least one of the following: a target channel and a target reference signal; determine the beam information of the multiple target objects based on the common beam information.

[0011] In the third aspect, an embodiment of the present application provides a beam indication device, comprising: an indication module, used to use an indication channel to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0012] Optionally, the indication channel is transmitted on a preset control resource set CORESET, or on a control resource set other than the preset control resource set.

[0013] Optionally, the indication channel includes a first group of public PDCCHs; the indication module uses the indication channel to indicate public beam information of multiple target objects to the target user terminal, including: on the first group of public PDCCHs, indicating public beam information of at least one terminal, wherein the at least one terminal includes the target terminal.

[0014] Optionally, the method may further include: a configuration module, configured to configure the information of the first group of common PDCCHs for the at least one terminal, or indicate the information of the first group of common PDCCHs to the at least one terminal.

[0015] Optionally, the indication module indicates the common beam information of at least one terminal on the first group of common PDCCHs, including: on the first group of common PDCCHs, carrying the common beam information of each terminal in the at least one terminal according to a preset position or a preset order.

[0016] Optionally, it also includes: a first sending module, used to send first indication information to the at least one terminal, the first indication information indicating the predetermined position or preset order of common beam information of each terminal in the at least one terminal on the first group of public PDCCH.

[0017] Optionally, the indication module is also used to: after configuring the information of the first group of public PDCCH for the at least one terminal, or indicating the information of the first group of public PDCCH to the at least one terminal, if the state of the first terminal among the at least one terminal changes, use the second group of public PDCCH to indicate the public beam information of the first terminal, wherein the second group of public PDCCH is a group public PDCCH other than the first group of public PDCCH.

[0018] Optionally, the indication module is also used to: after configuring the information of the first group of public PDCCHs for the at least one terminal, or indicating the information of the first group of public PDCCHs to the at least one terminal, if the state of the first terminal among the at least one terminal changes, use the first beam information to send the first group of public PDCCHs to indicate the public beam information of the first terminal, wherein the first beam information is different from the second beam information, wherein the second beam information is the beam information of the first group of public PDCCHs transmitted before the state of the first terminal changes.

[0019] Optionally, the second group of common PDCCHs or the first beam information is determined by any one of the following:

[0020] an uplink feedback resource currently used by the first terminal;

[0021] An uplink feedback resource used by the first terminal to send feedback information of the indication channel;

[0022] A beam report sent by the first terminal;

[0023] The first terminal sends beam information used by an uplink channel;

[0024] A physical random access channel PRACH sent by the first terminal.

[0025] Optionally, it also includes: a second sending module, used to send second indication information to the at least one terminal if the state of the first terminal in the at least one terminal changes, and the second indication information updates the common beam information of each terminal in the at least one terminal at a preset position or preset order on the first group of public PDCCH or the second group of public PDCCH.

[0026] Optionally, the indication channel includes a dedicated PDCCH, and the indication module 401 uses the indication channel to indicate common beam information of multiple target objects to the target user terminal, including: carrying the common beam information in the common beam information signaling field in the DCI on the dedicated PDCCH.

[0027] Optionally, the method may further include: a receiving module, configured to receive first feedback information from the target terminal with respect to the common beam information.

[0028] Optionally, it may also include: a transmission module, which is used to use the common beam information to transmit the target object to the target terminal if the first feedback information is confirmation information; if the first feedback information is non-confirmation information, use the beam information currently used by the target object to transmit the target object to the target terminal.

[0029] Optionally, the transmission module can also be used for: if the first feedback information of the target terminal for the common beam information is not received within a predetermined time, then the target object is transmitted to the target terminal using the beam information currently used by the target object, or, the target object is transmitted to the target terminal using the common beam information and the beam information currently used by the target object.

[0030] Optionally, the method further includes: an allocation module, configured to allocate resources for sending the first feedback information to the target terminal, and receive the first feedback information on the resources.

[0031] Optionally, the transmission module is further used to: use the common beam information and the beam information currently used by the target object to transmit the target object to the target terminal.

[0032] Optionally, it also includes: a determination module, used to determine the third beam information as the beam information of each CORESET in the first CORESET group, and determine the fourth beam information as the beam information of each CORESET in the second CORESET group.

[0033] Optionally, if the indication channel is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the indication channel, and the other is the beam information of the indication channel indicated by the indication channel or a preset command; if the target object is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the target object, and the other is the public beam information indicated by the indication channel, wherein the target object is a control channel.

[0034] Optionally, the first CORESET group includes the CORESET with the smallest CORESET identifier, and the second CORESET group includes CORESETs other than the CORESET with the smallest CORESET identifier.

[0035] Optionally, a third sending module is also included, used to send third indication information to the target terminal, wherein the third indication information is used to indicate the third beam information and / or the fourth beam information.

[0036] Optionally, the third sending module sends the third indication information to the target terminal, including any one of the following: sending the third indication information through the indication channel; sending the third indication information through a media access control layer MAC control unit CE command.

[0037] Optionally, the third indication information is used to indicate the third beam information and / or the fourth beam information, including any one of the following items: the third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or, the group identifier of the second CORESET group and the fourth beam information; the third beam information and / or the fourth beam information in the third indication information are arranged according to a preset position or a preset order.

[0038] Optionally, the plurality of target objects include the indication channel.

[0039] Optionally, the multiple target objects include channels other than the indication channel and reference signals.

[0040] Optionally, the indicator channel is also used to indicate beam information of the indicator channel.

[0041] Optionally, the indication channel includes: a first signaling field and a second signaling field, wherein the first signaling field is used to indicate common beam information of the multiple target objects, and the second signaling field is used to indicate beam information of the indication channel.

[0042] Optionally, the indicator channel indicates the common beam information and the beam information of the indicator channel in the following manner:

[0043] A preset first indicator channel format is used to indicate the beam information of the indicator channel, and a preset second indicator channel format is used to indicate the common beam information of the multiple target objects; or

[0044] A preset first resource is used to indicate the beam information of the indication channel, and a preset second resource is used to indicate the common beam information of the multiple target objects.

[0045] Optionally, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: using an indication channel in a predetermined format and / or transmitting the indication channel on predetermined resources, indicating the common beam information and the beam information of the indication channel, wherein the common beam information is the same as the beam information of the indication channel.

[0046] Optionally, the beam information of the indicator channel is TCI status information of the CORESET where the indicator channel is located.

[0047] Optionally, if the indicator channel is a first group of common PDCCHs, then in the beam information indicated by the first group of common PDCCHs, the beam information of the indicator channel is different from the common beam information of the multiple target objects.

[0048] Optionally, it also includes: a receiving module, used to receive second feedback information of the target terminal regarding the beam information of the indication channel; if the second feedback information is confirmation information, the indicated beam information of the indication channel is used to transmit the indication channel to the target terminal; if the second feedback information is non-confirmation information, the current beam information of the indication channel is used to transmit the indication channel to the target terminal.

[0049] Optionally, the receiving module is also used to transmit the indication channel to the target terminal using the current beam information of the indication channel if the second feedback information is not received within a preset time, or to transmit the transmission channel to the target terminal using the current beam information of the indication channel and the indicated beam information of the indication channel.

[0050] Optionally, the transmission module is further configured to, after using the indication channel to indicate the common beam information and the beam information of the indication channel, perform at least one of the following:

[0051] Transmitting the target object to the target terminal using the common beam information and the beam information currently used by the target object;

[0052] The indicator channel is transmitted to the target terminal using the indicated beam information of the indicator channel and the beam information currently used by the indicator channel.

[0053] Optionally, the indication module may also be used to: indicate beam information of the indication channel using a preset command.

[0054] Optionally, the transmission module is further used to transmit the indication channel to the target terminal using the indicated beam information of the indication channel and the beam information currently used by the indication channel.

[0055] Optionally, the receiving module can also be used to: receive third feedback information from the target terminal in response to the preset command; if the third feedback information is confirmation information, use the beam information of the indication channel indicated by the preset command to send the indication channel; if the third feedback information is non-confirmation information, use the current beam information of the indication channel to send the indication channel.

[0056] Optionally, the receiving module is also used to transmit the indication channel to the target terminal using the current beam information of the indication channel if the third feedback information is not received within a predetermined time, or to transmit the transmission channel to the target terminal using the current beam information of the indication channel and the beam information of the indication channel indicated by the preset command.

[0057] In a fourth aspect, an embodiment of the present application provides a beam determination device, comprising: a receiving module, used to receive first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target objects include at least one of the following: a target channel and a target reference signal; a determination module, used to determine the beam information of the multiple target objects based on the common beam information.

[0058] Optionally, the indication channel is a pre-agreed channel or a network configured channel.

[0059] Optionally, the receiving module may be used for:

[0060] Receiving downlink control information DCI in a predetermined format sent on the indication channel, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information;

[0061] The first target indication information is obtained from the signaling domain.

[0062] Optionally, the DCI in the predetermined format includes any one of the following:

[0063] DCI carried by the physical downlink control channel PDCCH;

[0064] DCI for scheduling data channel transmission;

[0065] A DCI dedicated to indicating the common beam information.

[0066] Optionally, the common beam information includes any one of the following: common transmission configuration indication TCI status information, common quasi-co-site QCL information and common spatial relationship information.

[0067] Optionally, the receiving module may also be used for:

[0068] The first target indication information transmitted by the indication channel is received on a preset control resource set CORESET, or the first target indication information transmitted by the indication channel is received on a control resource set other than the preset control resource set.

[0069] Optionally, the indicator channel includes a first group of common PDCCHs; the receiving module 1 may also be used for:

[0070] Receive configuration information of the first group of common PDCCHs, or receive indication information of the first group of common PDCCHs.

[0071] Optionally, receiving first target indication information transmitted on an indication channel includes: monitoring the first group of public PDCCHs, and obtaining the first target indication information transmitted on the first group of public PDCCHs, wherein the first group of public PDCCHs are used to indicate first target indication information of at least one terminal, and the at least one terminal includes the terminal.

[0072] Optionally, the receiving module can also be used to: monitor the first group of public PDCCHs, wherein the first target indication information of at least one terminal is transmitted on the first group of public PDCCHs, and the at least one terminal includes the terminal; and obtain the first target indication information of the terminal according to a preset position or preset order of the first target indication information of each terminal in the at least one terminal on the first group of public PDCCH.

[0073] Optionally, the receiving module can also be used to: if the state of the terminal changes, monitor a second group of public PDCCHs, and obtain the first target indication information transmitted on the second group of public PDCCHs, wherein the second group of public PDCCHs is a group of public PDCCHs other than the first group of public PDCCHs.

[0074] Optionally, monitoring the first group of public PDCCHs includes: if the state of the terminal changes, monitoring the first group of public PDCCHs according to the first beam information, and obtaining the first target indication information transmitted on the first group of public PDCCHs, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs monitored before the state of the terminal changes.

[0075] Optionally, the receiving module can also be used to: receive first indication information, wherein the first indication information is used to indicate the preset position or preset order of the first target indication information of the at least one terminal on the first group of common PDCCH, and the at least one terminal includes the terminal.

[0076] Optionally, the receiving module can also be used to: receive second indication information, wherein the second indication information is used to update the preset position or preset order of the first target indication information of each terminal in the at least one terminal on the first group of public PDCCH or the second group of public PDCCH.

[0077] Optionally, the second group of common PDCCHs or the first beam information is determined by any one of the following:

[0078] An uplink feedback resource currently used by the terminal;

[0079] An uplink feedback resource used by the terminal to send feedback information of the indication channel;

[0080] A beam report sent by the terminal;

[0081] The terminal sends beam information used by the uplink channel;

[0082] A physical random access channel PRACH sent by the terminal.

[0083] Optionally, the indication channel is a PDCCH dedicated to the terminal.

[0084] Optionally, it may also include: a first sending module, used to send first feedback information for the first target indication information on a first uplink feedback resource; wherein, if the first target indication information is successfully received, the first feedback information is confirmation information, and if the first target indication information is not successfully received, the first feedback information is non-confirmation information.

[0085] Optionally, it may also include: a first transmission module, which is used to transmit the target object using the common beam information indicated by the first target indication information if the first target indication information is successfully received, or to transmit the target object using the common beam information and the beam information currently used by the target object; if the first target indication information is not successfully received, the target object is transmitted using the beam information currently used by the target object.

[0086] Optionally, the receiving module can also be used to: receive third indication information, wherein the third indication information is used to indicate third beam information and / or fourth beam information, wherein the third beam information is the beam information of each CORESET in the first CORESET group, and the fourth beam information is the beam information of each CORESET in the second CORESET group.

[0087] Optionally, the receiving module is further used to receive the first target indication information transmitted on the indication channel according to the beam information corresponding to the CORESET where the indication channel is located. Alternatively, the receiving module is further used to transmit the target object according to the beam information corresponding to the CORESET where the target object is located, wherein the target object is a control channel.

[0088] Optionally, the first CORESET group includes the CORESET with the smallest CORESET identifier, and the second CORESET group includes CORESETs other than the CORESET with the smallest CORESET identifier.

[0089] Optionally, receiving the third indication information includes any one of the following:

[0090] receiving the third indication information from the indication channel;

[0091] Receive the third indication information sent through a MAC CE command.

[0092] Optionally, the third indication information is used to indicate the third beam information and / or the fourth beam information, and includes any one of the following:

[0093] The third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or the group identifier of the second CORESET group and the fourth beam information;

[0094] The third beam information and / or the fourth beam information in the third indication information are arranged in a preset position or in a preset order.

[0095] Optionally, the plurality of target objects include the indication channel.

[0096] Optionally, the multiple target objects include channels other than the indication channel and reference signals.

[0097] Optionally, the receiving module can also be used to: receive second target indication information transmitted on the indication channel, wherein the second target indication information is used to indicate beam information of the indication channel.

[0098] Optionally, receiving the first target indication information and the second target indication information transmitted on the indication channel includes: acquiring the first target indication information from a first signaling field of the indication channel, and acquiring the second target indication information from a second signaling field of the indication channel.

[0099] Optionally, the receiving module can also be used to: receive the first target indication information transmitted in a first indication channel format on the indication channel, and receive the second target indication information transmitted in a second indication channel format on the indication channel; or receive the first target indication information in a pre-set first resource, and receive the second target indication information in a pre-set second resource.

[0100] Optionally, the receiving module can also be used to: receive an indication channel transmitted in a predetermined format and / or the indication channel transmitted on predetermined resources, and obtain the first target indication information and the second target indication information, wherein the first target indication information and the second target indication information are the same.

[0101] Optionally, it may also include: a second sending module, used to send second feedback information for the second target indication information on a second uplink feedback resource, wherein if the second target indication information is successfully received, the second feedback information is confirmation information, and if the second target indication information is not successfully received, the second feedback information is non-confirmation information.

[0102] Optionally, it may also include: a second transmission module, used to receive the indication channel using the beam information indicated by the second target indication information if the second target indication information is successfully received, or to use the beam information indicated by the second target indication information and the beam information currently used by the indication channel; if the second target indication information is not successfully received, then the indication channel is received using the beam information currently used by the indication channel.

[0103] Optionally, the receiving module may also be used to: receive beam information of the indication channel indicated by a preset command.

[0104] Optionally, it may also include: a third sending module, used to send third feedback information for the preset command on a third uplink feedback resource, wherein if the preset command is successfully received, the third feedback information is confirmation information, and if the preset command is not successfully received, the third feedback information is non-confirmation information.

[0105] Optionally, the receiving module can also be used to receive the indication channel using the beam information indicated by the preset command if the preset command is successfully received, or to receive the indication channel using the beam information indicated by the preset command and the beam information currently used by the indication channel; if the preset command is not successfully received, the indication channel is received using the beam information currently used by the indication channel.

[0106] Optionally, the receiving module may further perform at least one of the following:

[0107] Receiving an uplink feedback resource configured or indicated by a network side, wherein the uplink feedback resource includes: the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource;

[0108] The first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource is determined according to preset resource information.

[0109] Optionally, the preset resource information includes any one of the following: downlink resources used by the indication channel, uplink feedback resources configured by the network, and pre-agreed uplink feedback resources.

[0110] Optionally, the method may further include: a determination module configured to perform at least one of the following:

[0111] Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the identification information of the terminal;

[0112] Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the radio network temporary identifier RNTI of the terminal;

[0113] Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using preset code information corresponding to the terminal;

[0114] Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using a preset time domain parameter corresponding to the terminal;

[0115] According to the preset resource information, the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource is determined using a preset frequency domain parameter corresponding to the terminal.

[0116] Optionally, the RNTI is a cell radio network temporary identifier (C-RNTI).

[0117] Optionally, the preset resource information is a periodic resource or a non-periodic resource.

[0118] Optionally, it also includes: a determination module, which is used to determine the monitoring timing of the predetermined CORESET according to any one of the following items if it is determined according to the indication of the indication channel or according to the preset command that the beam of the predetermined CORESET is switched: determined according to the beam information of the predetermined CORESET after switching or according to the synchronization signal block SSB corresponding to the predetermined CORESET; determined according to predetermined configuration information from the network side, wherein the predetermined configuration information is sent by the network side using the beam information of the predetermined CORESET after switching or the beam information of the SSB corresponding to the predetermined CORESET; wherein the predetermined CORESET is the CORESET with the smallest CORESET identifier.

[0119] In a fifth aspect, an embodiment of the present application provides a network side device, comprising: a memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0120] In a sixth aspect, an embodiment of the present application provides a terminal, comprising: a memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the second aspect.

[0121] In the seventh aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented; or the steps of the method described in the second aspect are implemented.

[0122] In the eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the method described in the first aspect, or to run a terminal program or instruction to implement the method described in the second aspect.

[0123] In an embodiment of the present application, an indication channel is used to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of multiple target objects, and the target objects include target channels and / or target reference signals. This can be achieved by indicating unified common beam information for multiple target objects, thereby reducing the signaling overhead of beam indication. BRIEF DESCRIPTION OF THE DRAWINGS

[0124] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0125] Figure 1 is a block diagram of a wireless communication system in an embodiment of the present application;

[0126] Figure 2 It is a flowchart of a beam indication method provided in an embodiment of the present application;

[0127] Figure 3 It is a flowchart of a beam determination method provided in an embodiment of the present application;

[0128] Figure 4 is a structural schematic diagram of a beam indication device provided in an embodiment of the present application;

[0129] Figure 5 It is a structural block diagram of a beam determination device provided in an embodiment of the present application;

[0130] Figure 6 It is a structural block diagram of a terminal provided in an embodiment of the present application;

[0131] Figure 7 It is a structural block diagram of a network side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0132] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0133] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0134] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following descriptions, although these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0135] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmission and reception point (Transmission and Reception Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0136] The following, in combination with the accompanying drawings, describes in detail the beam indication method, network side equipment and terminal provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0137] Figure 2 The present invention provides a flow chart of a beam indication method provided in an embodiment of the present invention. The method can be executed by a network-side device. In other words, the method 200 can be executed by software or hardware installed on the network-side device. Figure 2 As shown, the method may include the following steps.

[0138] S201: Use an indication channel to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0139] In the embodiments of the present application, the target channels include but are not limited to: PDCCH, PDSCH, PUSCH and PUCCH, etc.; the target reference signals include but are not limited to: Synchronization Signal Block (SSB), CSI-RS and SRS, etc.

[0140] For high-frequency communication systems, the communication link between the network and the terminal can usually use a single-beam mode, that is, the beam directions of the control channel, data channel, reference signal, etc. are basically the same. Therefore, in an embodiment of the present application, the network side device can indicate or update the beam information of multiple subsequent target objects to the target terminal through the indication channel, so as to indicate unified common beam information for multiple target objects, reduce the signaling overhead of beam indication, and can switch the beam information of the target object more quickly, thereby improving the flexibility of beam information indication.

[0141] It should be noted that, in a possible implementation of the present application, the indication channel may be a pre-agreed channel or a network configured channel.

[0142] In a possible implementation, a DCI in a predetermined format may be used on the indication channel to indicate the common beam information. Therefore, the above S201 may include: using the indication channel to send a DCI in a preset format to indicate the common beam information of multiple target objects, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information.

[0143] The DCI in the predetermined format may include any of the following:

[0144] (1) DCI carried by a physical downlink control channel (PDCCH); for example, the common beam information may be indicated by beam indication information in any DCI format when a scheduling channel or a reference signal is transmitted, for example, DCI format 1_1 or DCI format 0_1.

[0145] (2) DCI used for scheduling data channel transmission; that is, the DCI may be a specific DCI format carried by the PDCCH. For example, the common beam information may be indicated by the beam indication information in the DCI format 1_1 for scheduling the physical downlink shared channel (PDSCH).

[0146] (3) DCI dedicated to indicating common beam information: that is, a DCI format dedicated to transmitting the common beam information, and the DCI includes a signaling field for indicating the common beam information.

[0147] In a possible implementation, the common beam information may include, but is not limited to, any of the following: common Transmission Configuration Indication (TCI) state information, common Quasi-colocation (QCL) information, and common spatial relation information. That is, the beam information of multiple target objects is common TCI state information, common QCL information, or common spatial relation information.

[0148] Possibly, the indicator channel may be transmitted on a preset control resource set (CORESET), or may be transmitted on a control resource set other than the preset control resource set. For example, the indicator channel may be transmitted on a CORESET with the smallest CORESET identifier, or on other CORESETs other than the CORESET with the smallest CORESET identifier. It may also be transmitted only on CORESET#0 (i.e., the CORESET with the smallest CORESET identifier), or on other CORESETs other than CORESET#0.

[0149] In a possible implementation, the indicator channel may use a group common PDCCH or a dedicated PDCCH, that is, the indicator channel may be a group common PDCCH for a group of terminals or a dedicated PDCCH for one terminal.

[0150] Therefore, in a possible implementation, the indication channel may include: a first group common PDCCH (group common PDCCH), and S201 may include: indicating common beam information of at least one terminal on the first group common PDCCH, wherein the at least one terminal includes a target terminal. In this possible implementation, the network side device may carry the common beam information of each terminal in the at least one terminal on the first group common PDCCH according to a preset position or a preset order. That is, the network side device indicates the common beam information of at least one terminal on the first group common PDCCH, and the common beam information of each terminal in the at least one terminal is arranged on the first group common PDCCH according to a preset position or a preset order.

[0151] In a possible implementation, in order to enable each terminal in at least one terminal to obtain information about the first group of PDCCHs, before S201, the beam indication method may further include: configuring information about the first group of common PDCCHs for the at least one terminal, or indicating information about the first group of common PDCCHs to the at least one terminal. Each terminal in the at least one terminal may determine the first group of common PDCCHs based on the configured or indicated information about the first group of common PDCCHs, and the at least one terminal monitors the group of PDCCHs.

[0152] In another possible implementation, in order to enable each terminal in at least one terminal to know the position or order of the common beam information of each terminal on the first group of common PDCCH, before indicating the common beam information of at least one terminal on the first group of common PDCCH, the beam indication method may also include: sending first indication information to the at least one terminal, the first indication information indicating the predetermined position or predetermined order of the common beam information of each terminal in the at least one terminal on the first group of common PDCCH. Through the first indication information, each terminal in at least one terminal can know the position or order of its common beam information on the first group of common PDCCH.

[0153] In the above possible implementations, after configuring the first group of common PDCCHs for at least one terminal, the state of one of the terminals may change, for example, the position of one of the terminals moves (such as reaching a certain displacement) or rotates (such as reaching a certain angle), etc., then other group common PDCCHs may be used to transmit the common beam information of the terminal. Therefore, the beam indication method may also include: if the state of the first terminal in at least one terminal changes, using the second group of common PDCCHs to indicate the common beam information of the first terminal, wherein the second group of common PDCCHs is a group common PDCCH other than the first group of common PDCCHs.

[0154] In the above possible implementations, the network side device may also reconfigure or indicate information of the second group of public PDCCHs for the first terminal, so that the first terminal can learn and monitor the second group of public PDCCHs. The second group of public PDCCHs may be shared by the first terminal and other terminals (which may not include a terminal whose state has not changed in the at least one terminal), that is, the first terminal and the other terminals are a group of terminals.

[0155] It can be understood that the second group of public PDCCHs can be configured by the network side device before the first terminal changes, that is, it can be configured after the change of the first terminal is detected, and no specific limitation is made in the embodiments of the present application.

[0156] In a possible implementation, the information of the group common PDCCH configured or indicated above may include TCI state information of the group common PDCCH. Then the first terminal can use the TCI state information in the information of the reconfigured or indicated group common PDCCH (i.e., the second group common PDCCH) to monitor the group common PDCCH (i.e., the second group common PDCCH); and the terminal whose state has not changed among the at least one terminal monitors the original group common PDCCH (i.e., the first group common PDCCH). The network side device sends the first group common PDCCH and the second group common PDCCH respectively.

[0157] In another possible implementation, after configuring the information of the first group of public PDCCHs for at least one terminal, or indicating the information of the first group of public PDCCHs to at least one terminal, if the state of the first terminal in the at least one terminal changes, the beam indication method may also include: using the first beam information to send the first group of public PDCCHs to indicate the public beam information of the first terminal, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs transmitted before the state of the first terminal changes. That is to say, in this possible implementation, the network side focuses on configuring or indicating the beam information of the first group of public PDCCHs (i.e., the first beam information), and the network side sends the first group of public PDCCHs using the first beam information, and indicates the public beam information of the first terminal whose state has changed by using the first group of public PDCCHs sent using the first beam information, and indicates the public beam information of other terminals whose state has not changed by using the first group of public PDCCHs sent using the original beam information (i.e., the second beam information).

[0158] It can be understood that the first beam information can be configured or indicated by the network side device before the first terminal changes, that is, it can be configured or indicated after the state change of the first terminal is detected, and no specific limitation is made in the embodiments of the present application.

[0159] Optionally, the above-mentioned second group of public PDCCH or first beam information can be determined by any one of the following items: the uplink feedback resources currently used by the first terminal; the uplink feedback resources used by the first terminal to send feedback information of the indication channel; the beam report sent by the first terminal; the beam information used by the first terminal to send the uplink channel; the physical random access channel (Physical Random Access Channel, PRACH) resources sent by the first terminal.

[0160] Optionally, the correspondence between the uplink feedback resources used by the UE and the group common PDCCH or the beam information of the group common PDCCH can be pre-set, and the second group common PDCCH or the first beam information can be determined based on the uplink feedback resources currently used by the first terminal or the uplink feedback resources used for the feedback information of the first terminal feedback indication channel.

[0161] In the above possible implementations, due to a change in the state of the first terminal, the position or order of the common beam information carried on the first group of common PDCCHs may change. Therefore, the beam indication method may further include: sending a second indication message to the at least one terminal, wherein the second indication message is used to update the common beam information of each terminal in the at least one terminal at a preset position or preset order on the first group of common PDCCHs or the second group of common PDCCHs. That is to say, when the state of one of the at least one terminals changes, the network side device may indicate or update the position or carrying order of the common beam information of each terminal in the first group of common PDCCHs or the second group of common PDCCHs through the second indication message.

[0162] In another possible implementation, the indicator channel may also use a dedicated PDCCH, that is, a PDCCH dedicated to each terminal. Therefore, in the above S201, the following content may be performed: carrying the common beam information in the common beam information signaling field in the DCI on the dedicated PDCCH.

[0163] In a possible implementation, in order for the network side device to know whether the target terminal has successfully received the common beam information, the target terminal may send feedback information to the network side device. Therefore, in this possible embodiment, after S201, the beam indication method may further include: receiving first feedback information from the target terminal for the common beam information.

[0164] In the above possible implementation methods, optionally, after receiving the first feedback information of the target terminal for the common beam information, the method may also include: if the first feedback information is confirmation information, using the common beam information to transmit the target object to the target terminal; if the first feedback information is non-confirmation information, using the beam information currently used by the target object to transmit the target object to the target terminal.

[0165] Optionally, in another possible embodiment of the present application, after S201, the beam indication method may further include: if the first feedback information of the target terminal for the common beam information is not received within a predetermined time, the beam information currently used by the target object is used, or the indicated common beam information and the beam information currently used by the target object are used to transmit the target object, and the target object is transmitted to the target terminal. That is, after the network side device indicates the common beam information to the target terminal, it may not receive the first feedback information (it may be that the target terminal did not receive the common beam information, so the first feedback information was not sent, or the first feedback information (for example, ACK or NACK) was lost during the transmission process), then the network side device may still use the beam information currently used by the target object (i.e., the original beam information) to transmit the target object, or may use the indicated common beam information and the beam information currently used by the target object to transmit the target object, so as to ensure that the target terminal can correctly transmit the target object.

[0166] In the above possible implementations, the resource for the target terminal to send the first feedback information may be a pre-agreed location, or may be an uplink feedback resource allocated or indicated by a network-side device. Therefore, in a possible implementation, the beam indication method may further include: allocating resources for sending the first feedback information to the target terminal, and receiving the first feedback information according to the resources. For example, the network-side device may pre-allocate uplink feedback resources to the target terminal, and monitor the first feedback information fed back by the target terminal on the uplink feedback resources.

[0167] In another possible implementation, the feedback mechanism may not be used. Then, after S201, the beam indication method may further include: using the common beam information and the beam information currently used by the target object to transmit the target object to the target terminal. That is, in this possible implementation, after receiving the common beam information, the terminal does not provide feedback on whether the common beam information is successfully received. In this case, in the subsequent transmission process, the network side device transmits the target object to the target terminal using both the common beam information and the beam information currently used by the target object. Through this possible implementation, the occupancy of uplink resources can be reduced.

[0168] In another possible implementation, the CORESETs may be grouped without using a feedback mechanism. In this possible implementation, the beam indication method may further include: determining the third beam information as the beam information of each CORESET in the first CORESET group, and determining the fourth beam information as the beam information of each CORESET in the second CORESET group.

[0169] In the above possible implementations, optionally, the CORESET with the smallest CORESET identifier and other CORESETs can be divided into two groups, that is, the first CORESET group includes the CORESET with the smallest CORESET identifier (for example, CORESET#0), and the second CORESET group includes CORESETs other than the CORESET with the smallest CORESET identifier (for example, other CORESETs except CORESET#0).

[0170] In the above possible implementation, optionally, before determining the third beam information as the beam information of each CORESET in the first CORESET group and determining the fourth beam information as the beam information of each CORESET in the second CORESET group, the beam indication method may also include: sending third indication information to the target terminal, wherein the third indication information is used to indicate the third beam information and / or the fourth beam information. That is, in this possible implementation, the third indication information can be used to indicate the beam information of one group of CORESETs, or it can indicate the beam information of two groups of CORESETs at the same time. In actual applications, the third indication information can be sent through an indication channel, or the third indication information can be sent through a medium access control layer (Medium Access Control, MAC) control element (Control Element, CE) command.

[0171] The third indication information may include: the group identifier of the first CORESET group and the third beam information, and / or the group identifier of the second CORESET group and the fourth beam information. That is, the CORESET group corresponding to each beam information may be explicitly indicated in the third indication information; or, the third beam information and / or the fourth beam information in the third indication information are arranged in a preset position or a preset order, that is, the CORESET group corresponding to each beam information is not explicitly indicated in the third indication information, but the third beam information and / or the fourth beam information are arranged in a preset position or a preset order.

[0172] In the above possible implementation, the indicator channel can be transmitted in one or more CORESET groups in different CORESET groups. That is, the indicator channel can be transmitted on the first CORESET group and / or the second CORESET group. Then, in the third beam information and the fourth beam information, one is the beam information currently used by the indicator channel, and the other is the beam information of the indicator channel indicated by the indicator channel or indicated by the MAC CE command. Thus, the transmission reliability and robustness of the indicator channel are enhanced.

[0173] In the above possible implementation, when a target object is a control channel (such as PDCCH), the DCI carried by the target object can be transmitted in one or more CORESET groups in different CORESET groups, that is, the target object is transmitted on the first CORESET group and / or the second CORESET group, then one of the third beam information and the fourth beam information is the beam information currently used by the target object, and the other is the common beam information indicated by the indicator channel. Thus, the transmission reliability and robustness of the control signaling are enhanced.

[0174] In the above possible implementation manner, the network may only indicate the beam information of one CORESET group, and the beam information of another CORESET group is still the beam information currently used by it (ie, the original beam information).

[0175] In each of the possible implementations described above, the multiple target objects may include the indicator channel, that is, the common beam information indicated by the indicator channel, which is also the beam information of the indicator channel.

[0176] Alternatively, in each of the above possible implementations, the multiple target objects may not include the indicator channel, that is, the multiple target objects include channels other than the indicator channel and the reference signal.

[0177] When the above-mentioned multiple target objects include channels and reference signals other than the indicator channel, in a possible implementation, the indicator channel is also used to indicate the beam information of the indicator channel. That is, the indicator channel can indicate not only the common beam information but also its own beam information. In this possible implementation, the indicator channel can be transmitted on a specific CORESET, such as CORESET#0 or other CORESETs except CORESET#0.

[0178] In the above possible implementations, the indicator channel may include: a first signaling field and a second signaling field, wherein the first signaling field is used to indicate common beam information of multiple target objects, and the second signaling field is used to indicate beam information of the indicator channel. For example, the indicator channel may include a common beam information signaling field and an indicator channel beam information signaling field, wherein the common beam information signaling field is used to indicate beam information of the other channels and reference signals; and the indicator channel beam information signaling field is used to indicate beam information of the indicator channel.

[0179] Alternatively, the channel or reference signal to which the indicated beam information belongs may be indicated by the format or resource of the indication channel, that is, different formats or different resources are used to indicate the beam information of the indication channel and the beam information of the multiple target objects, respectively. For example, in one possible implementation, the indication channel may indicate common beam information and the beam information of the indication channel in the following manner: a preset first indication channel format is used to indicate the beam information of the indication channel, and a preset second indication channel format is used to indicate the common beam information of multiple target objects; or a preset first resource is used to indicate the beam information of the indication channel, and a preset second resource is used to indicate the common beam information of multiple target objects. The indication channel format may be a DCI format.

[0180] Alternatively, the same format or the same resource may be used to indicate the beam information of the indication channel and the beam information of the other channels and the reference signal, that is, the beam information of the indication channel and the beam information of the other channels and the reference signal are the same. Therefore, in another possible implementation, the indication channel may also indicate common beam information and the beam information of the indication channel in the following manner: using an indication channel in a predetermined format and / or transmitting an indication channel on predetermined resources to indicate common beam information and the beam information of the indication channel, wherein the common beam information is the same as the beam information of the indication channel.

[0181] In the above possible implementation manner, the beam information indicating the channel may be TCI status information of the CORESET where the channel is located.

[0182] In the above possible implementation, if the indicator channel is the first group of common PDCCHs, then in the beam information indicated by the first group of common PDCCHs, the beam information of the indicator channel is different from the common beam information of the multiple target objects. That is, if the indicator channel is the first group of common PDCCHs, then the beam information indicated by the first group of common PDCCHs includes the beam information of the indicator channel and the common beam information of each terminal in at least one terminal.

[0183] Among them, the beam information indicating the channel is different from the common beam information of multiple target objects, and may be different from the common beam information of all terminals in the at least one terminal, or may be different from the common beam information of some terminals of the at least one terminal.

[0184] In one possible implementation, after using an indication channel to indicate the beam information of the indication channel, the beam indication method may further include: receiving second feedback information from the target terminal regarding the beam information of the indication channel; if the second feedback information is confirmation information, using the indicated beam information of the indication channel to transmit the indication channel to the target terminal; if the second feedback information is non-confirmation information, using the current beam information of the indication channel.

[0185] In practical applications, the second feedback information may not be received. For example, the target terminal does not receive the beam information of the indication information, and therefore, does not feed back the second feedback information. Alternatively, the target terminal feeds back the second feedback information (which may be ACK or NACK), but it is lost during the transmission process, resulting in non-reception. Therefore, in a possible implementation, if the second feedback information is not received within a preset time, the method may also use the current beam information of the indication channel to transmit the indication channel to the target terminal, or use the indicated beam information of the indication channel and the current beam information of the indication channel to transmit the indication channel to the target terminal.

[0186] In an embodiment of the present application, the target terminal may send feedback information, i.e., first feedback information and second feedback information, respectively, for the indicated beam information and common beam information of the indication channel, or the target terminal may also send one feedback information uniformly for the indicated beam information and common beam information of the indication channel, i.e., the first feedback information and the second feedback information are the same feedback information, and the feedback information simultaneously indicates whether the target terminal successfully receives the beam information and the common beam information of the indication channel. If the target terminal successfully receives the beam information and the common beam information of the indication channel, confirmation information is fed back; if the target terminal fails to successfully receive any one of the beam information and the common beam information of the indication channel, non-confirmation information is fed back. After receiving the feedback information sent by the target terminal, if the feedback information is confirmation information, the network side device uses the indicated beam information of the indication channel to transmit the indication channel, and uses the common beam information to transmit multiple target objects. If the feedback information is non-confirmation information, the target object is transmitted to the target terminal using the beam information currently used by the target object, and the indication channel is transmitted to the target terminal using the beam information currently used by the indication channel. If no feedback information is received within the preset time, the target object is transmitted to the target terminal using the beam information currently used by the target object, or the common beam information and the beam information currently used by the target object; the indication channel is transmitted to the target terminal using the beam information currently used by the indication channel, or using the indicated beam information of the indication channel and the beam information currently used by the indication channel.

[0187] In one possible implementation, in order to ensure the reliability and robustness of transmission, after using the indication channel to indicate the common beam information and the beam information of the indication channel, the beam indication method may also include at least one of the following: using the common beam information and the beam information currently used by the target object to transmit the target object to the target terminal; using the indicated beam information of the indication channel and the beam information currently used by the indication channel to transmit the indication channel to the target terminal.

[0188] In a possible implementation, in order to enable the target terminal to receive the indication channel, before S201, the beam indication method may further include: using a preset command to indicate beam information of the indication channel.

[0189] The preset command may be a MAC CE command.

[0190] The beam information indicated by the preset command may be beam information of a CORESET where the channel is located.

[0191] In the above possible implementations, after S201, the beam indication method may further include: using the beam information of the indication channel indicated by the preset command and the beam information currently used by the indication channel to transmit the indication channel to the target terminal.

[0192] Alternatively, in another possible implementation, the network side device may also determine the beam information used by the indication channel according to the feedback of the target terminal. Therefore, in a possible implementation, after using a preset command to indicate the beam information of the indication channel, the beam indication method may further include: receiving third feedback information of the target terminal for the preset command, and if the third feedback information is confirmation information, using the beam information of the indication channel indicated by the preset command to send the indication channel; if the third feedback information is non-confirmation information, using the current beam information of the indication channel to send the indication channel.

[0193] In the above possible implementations, the network side may not receive the third feedback information (it may be that the target terminal has not received the preset command, or the third feedback information fed back by the target terminal is lost during the transmission process). Optionally, the method may also include: if the third feedback information is not received within a predetermined time, using the current beam information of the indication channel to send the indication channel, or using the indicated beam information of the indication channel and the beam information currently used by the indication channel to send the indication channel.

[0194] It can be seen from the above embodiments that the beam indication method of the embodiments of the present application can increase the robustness and flexibility of the beam indication while reducing the signaling overhead of the beam indication of each channel and the reference channel and the faster beam switching process.

[0195] It should be noted that the beam indication method provided in the embodiment of the present application can be executed by a beam indication device, or a control module in the beam indication device for executing the beam indication method. In the embodiment of the present application, the beam indication device provided in the embodiment of the present application is described by taking the beam indication device executing the beam indication method as an example.

[0196] Figure 3 The present invention provides a flow chart of a beam determination method provided in an embodiment of the present invention, which can be executed by a terminal. In other words, the method 300 can be executed by software or hardware installed on the terminal. Figure 3 As shown, the method may include the following steps.

[0197] S301, receiving first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target objects include at least one of the following: a target channel and a target reference signal.

[0198] S302: Determine beam information of multiple target objects according to the common beam information.

[0199] In an embodiment of the present application, the terminal receives the first target indication information transmitted on the indication channel, and then determines the beam information of multiple target objects according to the common beam information indicated by the first target indication information, thereby reducing the signaling overhead of the beam indication of each channel and the reference channel.

[0200] It should be noted that method 300 corresponds to method 200 , and the specific details of the same contents are similar to those of method 200 , and will not be repeated in this embodiment.

[0201] In a possible implementation, the indication channel may be a pre-agreed channel or a channel configured by the network.

[0202] In a possible implementation, the above step S301 may execute the following contents: receiving a DCI in a predetermined format sent on an indication channel, wherein the DCI in the predetermined format includes a signaling field for indicating common beam information; and obtaining first target indication information from the signaling field.

[0203] The DCI of the predetermined format may include any one of the following: DCI carried by the physical downlink control channel PDCCH; DCI used for scheduling data channel transmission; DCI dedicated to indicating common beam information.

[0204] The DCI in the predetermined format in this embodiment is the same as that in method 200. For details, please refer to the description in method 200, which will not be repeated here.

[0205] In one possible implementation, the common beam information may include any of the following: common transmission configuration indication TCI state information, common QCL information, and common spatial relationship information.

[0206] In a possible implementation, the above step S301 may execute the following content: receiving the first target indication information transmitted by the indication channel on a preset CORESET, or receiving the first target indication information transmitted by the indication channel on a control resource set other than the preset control resource set.

[0207] In a possible implementation manner, the indicator channel may include a group common PDCCH or a dedicated PDCCH.

[0208] In one possible implementation, the indication channel may include a first group of common PDCCHs. In an embodiment of the present application, before step S301, the beam indication method may further include: receiving information about the first group of common PDCCHs configured by the network side, or receiving information about the first group of common PDCCHs indicated by the network side.

[0209] In the above possible implementations, step S301 may execute the following: monitor the first group of public PDCCHs, and obtain first target indication information transmitted on the first group of public PDCCHs, wherein the first group of public PDCCHs is used to indicate first target indication information of at least one terminal, and the at least one terminal includes a terminal.

[0210] In one possible implementation, monitoring a first group of public PDCCHs and obtaining first target indication information transmitted on the first group of public PDCCHs may specifically include: monitoring a first group of public PDCCHs, wherein first target indication information of at least one terminal is transmitted on the first group of public PDCCHs, and at least one terminal includes the terminal; and obtaining the first target indication information of the terminal according to a preset position or a preset order of the first target indication information of each terminal in the at least one terminal on the first group of public PDCCH.

[0211] In one possible implementation, after step S301, the beam indication method may further include: if the state of the terminal changes, monitoring a second group of public PDCCHs, and obtaining first target indication information transmitted on the second group of public PDCCHs, wherein the second group of public PDCCHs is a group of public PDCCHs other than the first group of public PDCCHs.

[0212] It can be understood that, when the state of the terminal changes, the terminal monitors a new group common PDCCH, ie, the second group common PDCCH, sent by the network side device to obtain the first target indication information.

[0213] In one possible implementation, monitoring the first group of public PDCCHs may include: if the state of the terminal changes, monitoring the first group of public PDCCHs according to the first beam information, and obtaining first target indication information transmitted on the first group of public PDCCHs, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs monitored before the state of the terminal changes.

[0214] It can be understood that when the state of the terminal changes, the terminal can monitor the first group of public PDCCHs according to the new beam information, that is, the first beam information, to obtain the first target indication information.

[0215] In one possible implementation, before monitoring the first group of public PDCCH and obtaining the first target indication information transmitted on the first group of public PDCCH, the beam indication method may also include: receiving the first indication information, wherein the first indication information is used to indicate the preset position or preset order of the first target indication information of at least one terminal on the first group of public PDCCH, and the at least one terminal includes the terminal.

[0216] It can be understood that the preset position or preset order of the first target indication information of at least one terminal on the first group of public PDCCH is sent to each terminal by the network side device through the first indication information, and then each terminal can obtain the first target indication information by monitoring the first group of public PDCCH.

[0217] In a possible implementation, the beam indication method may further include: receiving second indication information, wherein the second indication information is used to update a preset position or preset order of first target indication information of each terminal in at least one terminal on a first group of public PDCCH or a second group of public PDCCH. For example, when the state of a terminal in at least one terminal changes, the network side device may indicate or update the position or carrying order of the public beam information of each terminal on the first group of public PDCCH or the second group of public PDCCH.

[0218] In a possible implementation manner, the second group of common PDCCH or the first beam information may be determined by any one of the following:

[0219] The uplink feedback resources currently used by the terminal;

[0220] An uplink feedback resource used by the terminal to send feedback information indicating a channel;

[0221] Beam reports sent by terminals;

[0222] The terminal sends the beam information used by the uplink channel;

[0223] Physical random access channel PRACH sent by the terminal.

[0224] In one possible implementation, after step S301, the beam indication method may further include: sending first feedback information for first target indication information on a first uplink feedback resource; wherein, if the first target indication information is successfully received, the first feedback information is confirmation information; if the first target indication information is not successfully received, the first feedback information is non-confirmation information.

[0225] It is understandable that the terminal can feedback first feedback information for the first target indication information on the uplink feedback resource indicated by the network side device. Specifically, it can determine whether the feedback is confirmation information or non-confirmation information based on whether the first target indication information is successfully received.

[0226] In one possible implementation, after step S301, the beam indication method may further include: if the first target indication information is successfully received, using the public beam information indicated by the first target indication information to transmit the target object, or using the public beam information indicated by the first target indication information and the beam information currently used by the target object to transmit the target object; if the first target indication information is not successfully received, using the beam information currently used by the target object to transmit the target object.

[0227] That is, if the terminal successfully receives the first target indication information, it feeds back confirmation information to the network side device, and can use the public beam information indicated by the first target indication information. In addition, since the first feedback information may be lost during the transmission process, the public beam information indicated by the first target indication information and the beam information currently used by the target object can also be used at the same time to transmit the target object. On the contrary, if the terminal does not successfully receive the first target indication information, it feeds back non-confirmation information to the network side device, and can use the beam information currently used by the target object to transmit the target object.

[0228] In one possible implementation, the beam indication method may also include: receiving third indication information, wherein the third indication information is used to indicate third beam information and / or fourth beam information, wherein the third beam information is the beam information of each CORESET in the first CORESET group, and the fourth beam information is the beam information of each CORESET in the second CORESET group.

[0229] It can be understood that the network side device can group the CORESETs and then indicate the beam information of each group respectively. Accordingly, the terminal can receive the beam information of each CORESET in the first CORESET group, that is, the third beam information, and can also receive the beam information of each CORESET in the second CORESET group, that is, the fourth beam information. If the indicator channel is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information can be the current beam information of the indicator channel, and the other can be the beam information of the indicator channel indicated by the indicator channel or the beam information of the indicator channel indicated by a predetermined command (for example, MAC CE). For details, please refer to the description in the above method 200. Alternatively, if a control channel among multiple target objects is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information can be the current beam information of the control channel, and the other can be the common beam information indicated by the indicator channel.

[0230] Correspondingly, if the indicator channel is transmitted on the first CORESET group and / or the second CORESET group, then in S301, the first target indication information transmitted on the indicator channel can be received according to the beam information corresponding to the CORESET where the indicator channel is located. Alternatively, if a certain target object is a control channel, and the control channel is transmitted on the first CORESET group and / or the second CORESET group, then the target object can be transmitted according to the beam information corresponding to the CORESET where the target object is located, wherein the target object is a control channel.

[0231] The first CORESET group may include the CORESET with the smallest CORESET identifier, and the second CORESET group may include the CORESET other than the CORESET with the smallest CORESET identifier.

[0232] In a possible implementation manner, receiving the third indication information may include any one of the following: receiving the third indication information from an indication channel; receiving the third indication information sent through a MAC CE command.

[0233] In one possible implementation, the third indication information is used to indicate the third beam information and / or the fourth beam information, and may include any of the following items: the third indication information includes: the group identifier and the third beam information of the first CORESET group, and / or, the group identifier and the fourth beam information of the second CORESET group; the third beam information and / or the fourth beam information in the third indication information are arranged according to a preset position or a preset order.

[0234] In the above possible implementation manner, the terminal may also feed back feedback information for the third indication information, for example, feedback confirmation information of successful reception, feedback non-confirmation information of unsuccessful reception, and the like.

[0235] In a possible implementation manner, the multiple target objects may include an indicator channel, and may also include channels other than the indicator channel and a reference signal.

[0236] In a possible implementation, when the multiple target objects include channels and reference signals other than the indicator channel, the beam indication method may further include: receiving second target indication information transmitted on the indicator channel, wherein the second target indication information is used to indicate the beam information of the indicator channel. That is, the indicator channel can indicate not only the public beam information but also its own beam information.

[0237] In a possible implementation, receiving the first target indication information and the second target indication information transmitted on the indication channel may include any of the following: acquiring the first target indication information from the first signaling field of the indication channel, acquiring the second target indication information from the second signaling field of the indication channel. Receiving the first target indication information transmitted in the first indication channel format on the indication channel, and receiving the second target indication information transmitted in the second indication channel format on the indication channel; or receiving the first target indication information in a preset first resource, and receiving the second target indication information in a preset second resource.

[0238] Alternatively, in another possible implementation, the first target indication information and the second target indication information may also be transmitted using a unified resource or format. Therefore, in this possible implementation, receiving the first target indication information and the second target indication information transmitted on the indication channel includes: receiving an indication channel transmitted in a predetermined format and / or an indication channel transmitted on predetermined resources, and obtaining the first target indication information and the second target indication information, wherein the first target indication information and the second target indication information are the same.

[0239] In one possible implementation, after receiving the second target indication information transmitted on the indication channel, the beam indication method may further include: sending second feedback information for the second target indication information on the second uplink feedback resource, wherein if the second target indication information is successfully received, the second feedback information is confirmation information, and if the second target indication information is not successfully received, the second feedback information is non-confirmation information; if the second target indication information is successfully received, the indication channel is received using the beam information indicated by the second target indication information, or the indication channel is received using the beam information indicated by the second target indication information and the beam information currently used by the indication channel; if the second target indication information is not successfully received, the indication channel is received using the beam information currently used by the indication channel.

[0240] In a possible implementation, before step S301, the beam indication method may further include: receiving beam information of an indication channel indicated by a preset command.

[0241] The preset command may be a MAC CE command.

[0242] Correspondingly, after step S301, the beam indication method may further include: sending third feedback information for the preset command on a third uplink feedback resource, wherein if the preset command is successfully received, the third feedback information is confirmation information, and if the preset command is not successfully received, the third feedback information is non-confirmation information.

[0243] In the above possible implementation methods, the beam indication method may also include, if the preset command is successfully received, using the beam information indicated by the preset command to receive the indication channel, or using the beam information indicated by the preset command and the beam information currently used by the indication channel to receive the indication channel; if the preset command is not successfully received, using the beam information currently used by the indication channel to receive the indication channel.

[0244] In a possible implementation manner, before sending the first feedback information, the second feedback information, or the third feedback information, the beam indication method may further include at least one of the following:

[0245] (1) receiving an uplink feedback resource configured or indicated by a network side, wherein the uplink feedback resource includes: a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource;

[0246] (2) Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to preset resource information.

[0247] That is, the terminal may feed back the first feedback information, the second feedback information or the third feedback information on the same uplink feedback resource, or may feed back the first feedback information, the second feedback information or the third feedback information on different uplink feedback resources.

[0248] The preset resource information may include any one of the following: downlink resources used by an indication channel, uplink feedback resources configured by the network, and pre-agreed uplink feedback resources.

[0249] Among them, the downlink resources may include indicating the situation where the channel is a group-common PDCCH or a dedicated PDCCH. For example, the terminal can send feedback information N time slots or sub-time slots or symbols after the end of the group-common PDCCH or the dedicated PDCCH, where N can be determined according to the specific application.

[0250] In a possible implementation, determining the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information may include at least one of the following:

[0251] (1) Determine the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource according to preset resource information and in combination with the identification information of the terminal; for example, if the terminal sends feedback information N time slots or sub-time slots or symbols after the end of the group common PDCCH or the dedicated PDCCH, the value of N corresponding to each identification information can be agreed in advance, and the terminal determines the corresponding N according to its identification information and feeds back in the corresponding time slot or sub-time slot or symbol, so that different terminals can send feedback information on different uplink resources.

[0252] (2) determining a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource according to preset resource information and in combination with a Radio Network Temporary Identity (RNTI) of the terminal;

[0253] (3) determining the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and using the preset code information corresponding to the terminal;

[0254] (4) determining, according to preset resource information, a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource using preset time domain parameters corresponding to the terminal;

[0255] (5) According to the preset resource information, using the preset frequency domain parameters corresponding to the terminal, determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource.

[0256] In the above possible implementation manner, the RNTI may be a Cell Radio Network Temporary Identifier (C-RNTI).

[0257] It can be understood that determining the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource may be based on preset resource information, combined with a terminal id or RNTI (such as C-RNTI cell-RNTI) used to uniquely identify the terminal, to determine the uplink feedback resource information of each terminal; it may also be that each terminal uses the terminal id or RNTI (such as C-RNTI) that uniquely identifies the terminal from the uplink feedback resources configured by the network to select its own uplink feedback resource information; it may also be based on the preset resource information, and the preset code information corresponding to each terminal determines its own uplink feedback resource information, that is, each terminal uses the preset resource information in a code division manner; it may also be based on the preset resource information, and the preset time domain parameters (such as time domain offset, period, etc.) corresponding to each terminal determine its own uplink feedback resource information, that is, each terminal uses the preset resource information in a time division manner; it may also be based on the preset resource information, and the preset frequency domain parameters (such as frequency domain offset, frequency hopping parameters, etc.) corresponding to each terminal determine its own uplink feedback resource information, that is, each terminal uses the preset resource information in a frequency division manner.

[0258] Optionally, the preset resource information may be a periodic resource or a non-periodic resource, such as a PUCCH resource, a non-periodic PUSCH resource, a configured grant PUSCH resource, and the like.

[0259] Optionally, the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource may also be a periodic resource or a non-periodic resource.

[0260] In each of the above possible implementations, since the indicator channel indicates the switching target object and / or the beam information of the indicator channel, or the preset command indicates the beam information of the indicator channel, and the indicator channel or the target object may be transmitted on the predetermined CORESET, it may cause the beam information of the predetermined CORESET to be switched, and thus the terminal needs to update the monitoring timing of the predetermined CORESET. Therefore, in a possible implementation, the method may also include: if it is determined that the beam of the predetermined CORESET is switched according to the indication of the indicator channel or the indication of the preset command, the monitoring timing of the predetermined CORESET is determined according to any one of the following items:

[0261] (1) Determined according to the beam information of the predetermined CORESET after switching or according to the synchronization signal block SSB corresponding to the predetermined CORESET;

[0262] (2) Determined according to predetermined configuration information from the network side, wherein the predetermined configuration information is sent by the network side using the beam information of the predetermined CORESET after switching or the beam information of the SSB corresponding to the predetermined CORESET.

[0263] In the above possible implementation manner, the predetermined CORESET is the CORESET with the smallest CORESET identifier, such as CORESET#0.

[0264] In the above possible implementations, for the beam indication information of CORESET#0, the transmission behavior of CORESET#0 can be determined according to the confirmation information / non-confirmation information fed back by the terminal. For details, please refer to the specific description in each of the above possible implementations.

[0265] It can be seen from the above embodiments that the beam determination method of the embodiments of the present application can increase the robustness and flexibility of the beam indication while reducing the signaling overhead of the beam indication of each channel and the reference channel and the faster beam switching process.

[0266] It should be noted that the beam determination method provided in the embodiment of the present application may be executed by a beam determination device, or a control module in the beam determination device for executing the beam determination method. In the embodiment of the present application, the beam determination device provided in the embodiment of the present application is described by taking the beam determination device executing the beam determination method as an example.

[0267] Figure 4 A structural schematic diagram of a beam indication device 400 provided in an embodiment of the present application is shown, and the beam indication device 400 includes: an indication module 401, used to use an indication channel to indicate common beam information of multiple target objects to a target user terminal, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0268] In a possible implementation, the indicated channel is a pre-agreed channel or a channel configured by the network.

[0269] In one possible implementation, the indication module 401 uses an indication channel to indicate common beam information of multiple target objects to the target user terminal, including: using the indication channel to send downlink control information DCI in a predetermined format to indicate the common beam information of the multiple target objects, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information.

[0270] In a possible implementation manner, the DCI in the predetermined format includes any one of the following:

[0271] DCI carried by the physical downlink control channel PDCCH;

[0272] DCI for scheduling data channel transmission;

[0273] A DCI dedicated to indicating the common beam information.

[0274] In one possible implementation, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi-co-site QCL information, and common spatial relationship information.

[0275] In a possible implementation manner, the indicator channel is transmitted on a preset control resource set CORESET, or on a control resource set other than the preset control resource set.

[0276] In one possible implementation, the indication channel includes a first group of public PDCCHs; the indication module 401 uses the indication channel to indicate public beam information of multiple target objects to the target user terminal, including: on the first group of public PDCCHs, indicating public beam information of at least one terminal, wherein the at least one terminal includes the target terminal.

[0277] In a possible implementation manner, the method may further include: a configuration module, configured to configure the information of the first group of common PDCCHs for the at least one terminal, or indicate the information of the first group of common PDCCHs to the at least one terminal.

[0278] In one possible implementation, the indication module 401 indicates the common beam information of at least one terminal on the first group of common PDCCHs, including: on the first group of common PDCCHs, carrying the common beam information of each terminal in the at least one terminal according to a preset position or a preset order.

[0279] In a possible implementation, it also includes: a first sending module, used to send first indication information to the at least one terminal, the first indication information indicating the predetermined position or preset order of common beam information of each terminal in the at least one terminal on the first group of public PDCCH.

[0280] In one possible implementation, the indication module 401 is also used to: after configuring the information of the first group of public PDCCHs for the at least one terminal, or indicating the information of the first group of public PDCCHs to the at least one terminal, if the state of the first terminal in the at least one terminal changes, use the second group of public PDCCHs to indicate the public beam information of the first terminal, wherein the second group of public PDCCHs is a group public PDCCH other than the first group of public PDCCHs.

[0281] In one possible implementation, the indication module 401 is also used to: after configuring the information of the first group of public PDCCHs for the at least one terminal, or indicating the information of the first group of public PDCCHs to the at least one terminal, if the state of the first terminal among the at least one terminal changes, use the first beam information to send the first group of public PDCCHs to indicate the public beam information of the first terminal, wherein the first beam information is different from the second beam information, wherein the second beam information is the beam information of the first group of public PDCCHs transmitted before the state of the first terminal changes.

[0282] In a possible implementation manner, the second group of common PDCCHs or the first beam information is determined by any one of the following:

[0283] an uplink feedback resource currently used by the first terminal;

[0284] An uplink feedback resource used by the first terminal to send feedback information of the indication channel;

[0285] A beam report sent by the first terminal;

[0286] The first terminal sends beam information used by an uplink channel;

[0287] A physical random access channel PRACH sent by the first terminal.

[0288] In one possible implementation, it also includes: a second sending module, which is used to send second indication information to the at least one terminal if the state of the first terminal in the at least one terminal changes, and the second indication information updates the common beam information of each terminal in the at least one terminal at a preset position or preset order on the first group of public PDCCH or the second group of public PDCCH.

[0289] In one possible implementation, the indication channel includes a dedicated PDCCH, and the indication module 401 uses the indication channel to indicate the common beam information of multiple target objects to the target user terminal, including: carrying the common beam information in the common beam information signaling field in the DCI on the dedicated PDCCH.

[0290] In a possible implementation manner, the method may further include: a receiving module, configured to receive first feedback information from the target terminal with respect to the common beam information.

[0291] In one possible implementation, it may also include: a transmission module, which is used to use the common beam information to transmit the target object to the target terminal if the first feedback information is confirmation information; if the first feedback information is non-confirmation information, use the beam information currently used by the target object to transmit the target object to the target terminal.

[0292] In one possible implementation, the transmission module can also be used to: if the first feedback information of the target terminal for the common beam information is not received within a predetermined time, transmit the target object to the target terminal using the beam information currently used by the target object, or transmit the target object to the target terminal using the common beam information and the beam information currently used by the target object.

[0293] In a possible implementation manner, the further comprising: an allocation module, configured to allocate resources for sending the first feedback information to the target terminal, and receive the first feedback information on the resources.

[0294] In a possible implementation manner, the transmission module is further used to: transmit the target object to the target terminal by using the common beam information and the beam information currently used by the target object.

[0295] In a possible implementation, it also includes: a determination module, used to determine the third beam information as the beam information of each CORESET in the first CORESET group, and determine the fourth beam information as the beam information of each CORESET in the second CORESET group.

[0296] In one possible implementation, if the indication channel is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the indication channel, and the other is the beam information of the indication channel indicated by the indication channel or a preset command; if the target object is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the target object, and the other is the public beam information indicated by the indication channel, wherein the target object is a control channel.

[0297] In a possible implementation, the first CORESET group includes a CORESET with a smallest CORESET identifier, and the second CORESET group includes CORESETs other than the CORESET with the smallest CORESET identifier.

[0298] In a possible implementation, a third sending module is further included, used to send third indication information to the target terminal, wherein the third indication information is used to indicate the third beam information and / or the fourth beam information.

[0299] In a possible implementation, the third sending module sends the third indication information to the target terminal, including any one of the following: sending the third indication information through the indication channel; sending the third indication information through a media access control layer MAC control unit CE command.

[0300] In one possible implementation, the third indication information is used to indicate the third beam information and / or the fourth beam information, including any one of the following items: the third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or, the group identifier of the second CORESET group and the fourth beam information; the third beam information and / or the fourth beam information in the third indication information are arranged according to a preset position or a preset order.

[0301] In a possible implementation manner, the multiple target objects include the indication channel.

[0302] In a possible implementation manner, the multiple target objects include channels other than the indicator channel and reference signals.

[0303] In a possible implementation manner, the indicator channel is also used to indicate beam information of the indicator channel.

[0304] In one possible implementation, the indication channel includes: a first signaling field and a second signaling field, wherein the first signaling field is used to indicate common beam information of the multiple target objects, and the second signaling field is used to indicate beam information of the indication channel.

[0305] In a possible implementation manner, the indicator channel indicates the common beam information and the beam information of the indicator channel in the following manner:

[0306] A preset first indicator channel format is used to indicate the beam information of the indicator channel, and a preset second indicator channel format is used to indicate the common beam information of the multiple target objects; or

[0307] A preset first resource is used to indicate the beam information of the indication channel, and a preset second resource is used to indicate the common beam information of the multiple target objects.

[0308] In one possible implementation, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: using an indication channel in a predetermined format and / or transmitting the indication channel on predetermined resources, indicating the common beam information and the beam information of the indication channel, wherein the common beam information is the same as the beam information of the indication channel.

[0309] In a possible implementation, the beam information of the indicator channel is TCI status information of the CORESET where the indicator channel is located.

[0310] In a possible implementation, if the indicator channel is a first group of common PDCCHs, then in the beam information indicated by the first group of common PDCCHs, the beam information of the indicator channel is different from the common beam information of the multiple target objects.

[0311] In a possible implementation, it also includes: a receiving module, used to receive second feedback information from the target terminal regarding the beam information of the indication channel; if the second feedback information is confirmation information, the indicated beam information of the indication channel is used to transmit the indication channel to the target terminal; if the second feedback information is non-confirmation information, the current beam information of the indication channel is used to transmit the indication channel to the target terminal.

[0312] In one possible implementation, the receiving module is also used to transmit the indication channel to the target terminal using the current beam information of the indication channel if the second feedback information is not received within a preset time, or to transmit the transmission channel to the target terminal using the current beam information of the indication channel and the indicated beam information of the indication channel.

[0313] In a possible implementation manner, the transmission module is further configured to, after using the indication channel to indicate the common beam information and the beam information of the indication channel, perform at least one of the following:

[0314] Transmitting the target object to the target terminal using the common beam information and the beam information currently used by the target object;

[0315] The indicator channel is transmitted to the target terminal using the indicated beam information of the indicator channel and the beam information currently used by the indicator channel.

[0316] In a possible implementation, the indication module 401 may also be used to: indicate the beam information of the indication channel using a preset command.

[0317] In a possible implementation, the transmission module is further used to transmit the indicator channel to the target terminal using the indicated beam information of the indicator channel and the beam information currently used by the indicator channel.

[0318] In one possible implementation, the receiving module can also be used to: receive third feedback information from the target terminal in response to the preset command; if the third feedback information is confirmation information, use the beam information of the indication channel indicated by the preset command to send the indication channel; if the third feedback information is non-confirmation information, use the current beam information of the indication channel to send the indication channel.

[0319] In one possible implementation, the receiving module is also used to transmit the indication channel to the target terminal using the current beam information of the indication channel if the third feedback information is not received within a predetermined time, or to transmit the transmission channel to the target terminal using the current beam information of the indication channel and the beam information of the indication channel indicated by the preset command.

[0320] It can be seen from the above embodiments that, through the network side equipment of the embodiments of the present application, the signaling overhead of the beam indication of each channel and the reference channel and the faster beam switching process can be reduced while increasing the robustness and flexibility of the beam indication.

[0321] Figure 5 A schematic diagram of the structure of a beam determination device 500 provided in an embodiment of the present application is shown as follows: Figure 5 As shown, the beam determination device 500 includes: a receiving module 501, used to receive first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target object includes at least one of the following: a target channel and a target reference signal; a determination module 502, used to determine the beam information of the multiple target objects based on the common beam information.

[0322] In a possible implementation manner, the indication channel is a pre-agreed channel or a network configured channel.

[0323] In a possible implementation, in the terminal 500 of the embodiment of the present application, the receiving module 501 may be used to:

[0324] Receiving downlink control information DCI in a predetermined format sent on the indication channel, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information;

[0325] The first target indication information is obtained from the signaling domain.

[0326] In a possible implementation, the DCI in the predetermined format includes any one of the following:

[0327] DCI carried by the physical downlink control channel PDCCH;

[0328] DCI for scheduling data channel transmission;

[0329] A DCI dedicated to indicating the common beam information.

[0330] In a possible implementation, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi-co-site QCL information and common spatial relationship information.

[0331] In a possible implementation, the receiving module 501 may also be used for:

[0332] The first target indication information transmitted by the indication channel is received on a preset control resource set CORESET, or the first target indication information transmitted by the indication channel is received on a control resource set other than the preset control resource set.

[0333] In a possible implementation, the indicator channel includes a first group of common PDCCHs; the receiving module 501 may also be used for:

[0334] Receive configuration information of the first group of common PDCCHs, or receive indication information of the first group of common PDCCHs.

[0335] In one possible implementation, receiving first target indication information transmitted on an indication channel includes: monitoring the first group of public PDCCHs, and obtaining the first target indication information transmitted on the first group of public PDCCHs, wherein the first group of public PDCCHs is used to indicate first target indication information of at least one terminal, and the at least one terminal includes the terminal.

[0336] In one possible implementation, the receiving module 501 can also be used to: monitor the first group of public PDCCHs, wherein the first target indication information of at least one terminal is transmitted on the first group of public PDCCHs, and the at least one terminal includes the terminal; and obtain the first target indication information of the terminal according to a preset position or preset order of the first target indication information of each terminal in the at least one terminal on the first group of public PDCCHs.

[0337] In one possible implementation, the receiving module 501 can also be used to: if the state of the terminal changes, monitor the second group of public PDCCHs, and obtain the first target indication information transmitted on the second group of public PDCCHs, wherein the second group of public PDCCHs is a group public PDCCH other than the first group of public PDCCHs.

[0338] In one possible implementation, monitoring the first group of public PDCCHs includes: if the state of the terminal changes, monitoring the first group of public PDCCHs according to first beam information, and obtaining the first target indication information transmitted on the first group of public PDCCHs, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs monitored before the state of the terminal changes.

[0339] In one possible implementation, the receiving module 501 can also be used to: receive first indication information, wherein the first indication information is used to indicate the preset position or preset order of the first target indication information of the at least one terminal on the first group of common PDCCH, and the at least one terminal includes the terminal.

[0340] In one possible implementation, the receiving module 501 can also be used to: receive second indication information, wherein the second indication information is used to update the preset position or preset order of the first target indication information of each terminal in the at least one terminal on the first group of public PDCCH or the second group of public PDCCH.

[0341] In a possible implementation manner, the second group of common PDCCHs or the first beam information is determined by any one of the following:

[0342] An uplink feedback resource currently used by the terminal;

[0343] An uplink feedback resource used by the terminal to send feedback information of the indication channel;

[0344] A beam report sent by the terminal;

[0345] The terminal sends beam information used by the uplink channel;

[0346] A physical random access channel PRACH sent by the terminal.

[0347] In a possible implementation manner, the indicator channel is a PDCCH dedicated to the terminal.

[0348] In a possible implementation, it may also include: a first sending module, used to send first feedback information for the first target indication information on a first uplink feedback resource; wherein, if the first target indication information is successfully received, the first feedback information is confirmation information, and if the first target indication information is not successfully received, the first feedback information is non-confirmation information.

[0349] In one possible implementation, it may also include: a first transmission module, which is used to transmit the target object using the common beam information indicated by the first target indication information if the first target indication information is successfully received, or to transmit the target object using the common beam information and the beam information currently used by the target object; if the first target indication information is not successfully received, the target object is transmitted using the beam information currently used by the target object.

[0350] In one possible implementation, the receiving module 501 can also be used to: receive third indication information, wherein the third indication information is used to indicate third beam information and / or fourth beam information, wherein the third beam information is the beam information of each CORESET in the first CORESET group, and the fourth beam information is the beam information of each CORESET in the second CORESET group.

[0351] In a possible implementation, the receiving module 501 is further configured to receive the first target indication information transmitted on the indication channel according to the beam information corresponding to the CORESET where the indication channel is located. Alternatively, the receiving module 501 is further configured to transmit the target object according to the beam information corresponding to the CORESET where the target object is located, wherein the target object is a control channel.

[0352] In a possible implementation, the first CORESET group includes a CORESET with a smallest CORESET identifier, and the second CORESET group includes CORESETs other than the CORESET with the smallest CORESET identifier.

[0353] In a possible implementation manner, receiving the third indication information includes any one of the following:

[0354] receiving the third indication information from the indication channel;

[0355] Receive the third indication information sent through a MAC CE command.

[0356] In a possible implementation manner, the third indication information is used to indicate the third beam information and / or the fourth beam information, and includes any one of the following:

[0357] The third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or the group identifier of the second CORESET group and the fourth beam information;

[0358] The third beam information and / or the fourth beam information in the third indication information are arranged in a preset position or in a preset order.

[0359] In a possible implementation manner, the multiple target objects include the indication channel.

[0360] In a possible implementation manner, the multiple target objects include channels other than the indicator channel and reference signals.

[0361] In a possible implementation, the receiving module 501 may also be used to: receive second target indication information transmitted on the indication channel, wherein the second target indication information is used to indicate beam information of the indication channel.

[0362] In a possible implementation, receiving the first target indication information and the second target indication information transmitted on the indication channel includes: acquiring the first target indication information from a first signaling field of the indication channel, and acquiring the second target indication information from a second signaling field of the indication channel.

[0363] In one possible implementation, the receiving module 501 may also be used to: receive the first target indication information transmitted using a first indication channel format on the indication channel, and receive the second target indication information transmitted using a second indication channel format on the indication channel; or receive the first target indication information in a pre-set first resource, and receive the second target indication information in a pre-set second resource.

[0364] In one possible implementation, the receiving module 501 can also be used to: receive an indication channel transmitted in a predetermined format and / or the indication channel transmitted on predetermined resources, obtain the first target indication information and the second target indication information, wherein the first target indication information and the second target indication information are the same.

[0365] In a possible implementation, it may also include: a second sending module, used to send second feedback information for the second target indication information on a second uplink feedback resource, wherein if the second target indication information is successfully received, the second feedback information is confirmation information, and if the second target indication information is not successfully received, the second feedback information is non-confirmation information.

[0366] In one possible implementation, it may also include: a second transmission module, which is used to receive the indication channel using the beam information indicated by the second target indication information if the second target indication information is successfully received, or to use the beam information indicated by the second target indication information and the beam information currently used by the indication channel; if the second target indication information is not successfully received, then the indication channel is received using the beam information currently used by the indication channel.

[0367] In a possible implementation, the receiving module 501 may also be used to: receive beam information of the indicated channel indicated by a preset command.

[0368] In a possible implementation, it may also include: a third sending module, used to send third feedback information for the preset command on a third uplink feedback resource, wherein if the preset command is successfully received, the third feedback information is confirmation information, and if the preset command is not successfully received, the third feedback information is non-confirmation information.

[0369] In one possible implementation, the receiving module 501 can also be used to, if the preset command is successfully received, use the beam information indicated by the preset command to receive the indication channel, or, to receive the indication channel using the beam information indicated by the preset command and the beam information currently used by the indication channel; if the preset command is not successfully received, use the beam information currently used by the indication channel to receive the indication channel.

[0370] In a possible implementation, the receiving module 501 may further perform at least one of the following:

[0371] Receiving an uplink feedback resource configured or indicated by a network side, wherein the uplink feedback resource includes: the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource;

[0372] The first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource is determined according to preset resource information.

[0373] In a possible implementation manner, the preset resource information includes any one of the following: a downlink resource used by the indication channel, an uplink feedback resource configured by the network, and a pre-agreed uplink feedback resource.

[0374] In a possible implementation, the method may further include: a determination module configured to perform at least one of the following:

[0375] Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the identification information of the terminal;

[0376] Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the radio network temporary identifier RNTI of the terminal;

[0377] Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using preset code information corresponding to the terminal;

[0378] Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using a preset time domain parameter corresponding to the terminal;

[0379] According to the preset resource information, the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource is determined using a preset frequency domain parameter corresponding to the terminal.

[0380] In a possible implementation manner, the RNTI is a cell radio network temporary identifier (C-RNTI).

[0381] In a possible implementation manner, the preset resource information is a periodic resource or a non-periodic resource.

[0382] In a possible implementation, it also includes: a determination module, which is used to determine the monitoring timing of the predetermined CORESET according to any one of the following items if it is determined according to the indication of the indication channel or according to the preset command that the beam of the predetermined CORESET is switched: determined according to the beam information of the predetermined CORESET after switching or according to the synchronization signal block SSB corresponding to the predetermined CORESET; determined according to predetermined configuration information from the network side, wherein the predetermined configuration information is sent by the network side using the beam information of the predetermined CORESET after switching or the beam information of the SSB corresponding to the predetermined CORESET; wherein the predetermined CORESET is the CORESET with the smallest CORESET identifier.

[0383] It can be seen from the above embodiments that, through the beam determination device of the embodiment of the present application, the signaling overhead of the beam indication of each channel and the reference channel and the faster beam switching process can be reduced while increasing the robustness and flexibility of the beam indication.

[0384] Figure 6 It is a structural block diagram of a terminal provided in an embodiment of the present application. Figure 6The terminal 600 shown includes: at least one processor 601, a memory 602, at least one network interface 604 and a user interface 503. The various components in the terminal 600 are coupled together via a bus system 605. It is understood that the bus system 605 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 505 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the bus system 605 is not shown in FIG. Figure 6 Various buses are labeled as bus system 605 .

[0385] The user interface 603 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen).

[0386] It can be understood that the memory 602 in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct RAM bus random access memory (DRRAM). The memory 602 of the system and method described in the embodiments of the present application is intended to include but is not limited to these and any other suitable types of memory.

[0387] In some implementations, the memory 602 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and an application 6022 .

[0388] The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 6022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application can be included in the application 6022.

[0389] In the embodiment of the present application, the terminal 600 further includes: a program or instruction stored in the memory 602 and executable on the processor 601, and the program or instruction is executed by the processor 601 to implement the following steps:

[0390] receiving first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target objects include at least one of the following: a target channel and a target reference signal;

[0391] The beam information of the multiple target objects is determined according to the common beam information.

[0392] The method disclosed in the above embodiment of the present application can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 601. The above processor 601 can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software modules in the decoding processor are combined and executed. The software module can be located in a computer-readable storage medium mature in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The computer-readable storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the above method in combination with its hardware. Specifically, the computer-readable storage medium stores a computer program, and when the computer program is executed by the processor 601, each step of the above method embodiment for transmitting uplink control information is implemented.

[0393] It is to be understood that the embodiments described in the embodiments of the present application may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in the present application or a combination thereof.

[0394] For software implementation, the technology described in the embodiments of the present application can be implemented by a module (such as a process, function, etc.) that performs the functions described in the embodiments of the present application. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0395] The terminal 600 can implement various processes implemented by the terminal in the aforementioned embodiments, which will not be described again here to avoid repetition.

[0396] See also Figure 7 , Figure 7 is a structural block diagram of a network side device provided in an embodiment of the present application, which can be used as a network side device to implement various details in the above methods 200 and 300 and achieve the same effect. Figure 7 As shown, the network side device 700 includes: a processor 701, a transceiver 702, a memory 703, a user interface 7704 and a bus interface 7705, wherein:

[0397] In the embodiment of the present application, the network side device 700 further includes: a program or instruction stored in the memory 703 and executable on the processor 701, and the program or instruction is executed by the processor 701 to implement the following steps:

[0398] An indication channel is used to indicate common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0399] exist Figure 7 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 701 and various circuits of memory represented by memory 703 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface 705 provides an interface. The transceiver 702 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 704 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0400] The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 can store data used by the processor 701 when performing operations.

[0401] Preferably, an embodiment of the present application also provides a network side device, including: a memory, a processor, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the above-mentioned beam indication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0402] Preferably, an embodiment of the present application also provides a terminal, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the above-mentioned beam determination method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0403] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the method embodiment of the beam determination method applied to the terminal is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0404] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0405] Preferably, an embodiment of the present application also provides a network side device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the above-mentioned beam indication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0406] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned beam indication method embodiment applied to the network side device is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0407] The processor is the processor in the network side device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0408] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run network-side device programs or instructions to implement the various processes of the above-mentioned beam indication method and beam determination method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0409] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0410] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0411] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0412] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A beam indication method, characterized in that: Applied to network-side devices, including: Using an indication channel, indicating common beam information of multiple target objects to a target terminal, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal; Wherein, the indicator channel includes a first group of common PDCCHs; The using the indication channel to indicate the common beam information of multiple target objects to the target terminal includes: indicating the common beam information of at least one terminal on the first group of common PDCCHs, wherein the at least one terminal includes the target terminal; The indicating, on the first group of common PDCCHs, common beam information of at least one terminal includes: On the first group of common PDCCHs, common beam information of each terminal in the at least one terminal is carried according to a preset position or a preset order.

2. The method according to claim 1, characterized in that: The indication channel is a pre-agreed channel or a channel configured by the network.

3. The method according to claim 1, characterized in that Using an indication channel to indicate common beam information of multiple target objects to a target terminal includes: using the indication channel to send downlink control information DCI in a predetermined format to indicate the common beam information of the multiple target objects, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information.

4. The method according to claim 3, characterized in that The DCI in the predetermined format includes any one of the following: DCI carried by the physical downlink control channel PDCCH; DCI for scheduling data channel transmission; A DCI dedicated to indicating the common beam information.

5. The method according to claim 1, characterized in that The common beam information includes any one of the following: common transmission configuration indication TCI status information, common quasi-co-site QCL information and common spatial relationship information.

6. The method according to claim 1, characterized in that The indicator channel is transmitted on a preset control resource set CORESET, or on a control resource set other than the preset control resource set.

7. The method according to claim 1, characterized in that Before using the indication channel to indicate the common beam information of multiple target objects to the target user terminal, the method further includes: The information of the first group of common PDCCHs is configured for the at least one terminal, or the information of the first group of common PDCCHs is indicated to the at least one terminal.

8. The method according to claim 1, characterized in that Before indicating the common beam information of at least one terminal on the first group of common PDCCH, the method further includes: sending first indication information to the at least one terminal, the first indication information indicating a preset position or preset order of the common beam information of each terminal in the at least one terminal on the first group of common PDCCH.

9. The method according to claim 1, characterized in that: After configuring the information of the first group of common PDCCHs for the at least one terminal, or indicating the information of the first group of common PDCCHs to the at least one terminal, the method further includes: If the state of a first terminal among the at least one terminal changes, a second group of common PDCCH is used to indicate common beam information of the first terminal, wherein the second group of common PDCCH is a group common PDCCH other than the first group of common PDCCH.

10. The method according to claim 1, characterized in that After configuring the information of the first group of common PDCCHs for the at least one terminal, or indicating the information of the first group of common PDCCHs to the at least one terminal, the method further includes: If the state of the first terminal among the at least one terminal changes, the first group of public PDCCHs are sent using the first beam information, and the public beam information of the first terminal is indicated by the first group of public PDCHH, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs transmitted before the state of the first terminal changes.

11. The method according to claim 9 or 10, characterized in that: The second group of common PDCCH or the first beam information is determined by any one of the following: an uplink feedback resource currently used by the first terminal; An uplink feedback resource used by the first terminal to send feedback information of the indication channel; A beam report sent by the first terminal; The first terminal sends beam information used by an uplink channel; A physical random access channel PRACH sent by the first terminal.

12. The method according to claim 9 or 10, characterized in that: If the state of the first terminal among the at least one terminal changes, the method further includes: sending second indication information to the at least one terminal, wherein the second indication information is used to update the common beam information of each terminal among the at least one terminal at a preset position or preset order on the first group of public PDCCH or the second group of public PDCCH.

13. The method according to claim 1, characterized in that The indicator channel includes a dedicated PDCCH; The using the indication channel to indicate the common beam information of multiple target objects to the target user terminal includes: The common beam information is carried in a common beam information signaling field in the DCI on the dedicated PDCCH.

14. The method according to claim 1, characterized in that After using the indication channel to indicate the common beam information of multiple target objects to the target user terminal, the method further includes: Receive first feedback information from the target terminal regarding the common beam information.

15. The method according to claim 14, characterized in that After receiving the first feedback information of the target terminal for the indicator channel, the method further includes: If the first feedback information is confirmation information, using the common beam information to transmit the target object to the target terminal; If the first feedback information is non-confirmation information, the target object is transmitted to the target terminal using the beam information currently used by the target object.

16. The method according to claim 14, characterized in that After using the indication channel to indicate the common beam information of multiple target objects to the target user terminal, the method further includes: If the first feedback information of the target terminal for the common beam information is not received within the predetermined time, the target object is transmitted to the target terminal using the beam information currently used by the target object, or the target object is transmitted to the target terminal using the common beam information and the beam information currently used by the target object.

17. The method according to claim 14, characterized in that The method further comprises: Resources for sending the first feedback information are allocated to the target terminal, and the first feedback information is received according to the resources.

18. The method according to claim 1, characterized in that After indicating the common beam information of multiple target objects to the target user terminal using the indication channel, the method further includes: The target object is transmitted to the target terminal by using the common beam information and the beam information currently used by the target object.

19. The method according to claim 1, characterized in that The method further comprises: The third beam information is determined as the beam information of each CORESET in the first CORESET group, and the fourth beam information is determined as the beam information of each CORESET in the second CORESET group.

20. The method according to claim 19, characterized in that If the indicator channel is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the indicator channel, and the other is the beam information of the indicator channel indicated by the indicator channel or the preset command; If the target object is transmitted on the first CORESET group and / or the second CORESET group, one of the third beam information and the fourth beam information is the beam information currently used by the target object, and the other is the common beam information indicated by the indication channel, wherein the target object is a control channel.

21. The method according to claim 19, characterized in that The first CORESET group includes the CORESET with the smallest CORESET identifier, and the second CORESET group includes the CORESETs other than the CORESET with the smallest CORESET identifier.

22. The method according to claim 19, characterized in that Before determining the third beam information as the beam information of each CORESET in the first CORESET group and determining the fourth beam information as the beam information of each CORESET in the second CORESET group, the method further includes: Send third indication information to the target terminal, wherein the third indication information is used to indicate the third beam information and / or the fourth beam information.

23. The method according to claim 22, characterized in that Sending third indication information to the target terminal includes any one of the following: Sending the third indication information through the indication channel; The third indication information is sent through a medium access control layer MAC control element CE command.

24. The method according to claim 22, characterized in that The third indication information is used to indicate the third beam information and / or the fourth beam information, including any one of the following: The third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or the group identifier of the second CORESET group and the fourth beam information; The third beam information and / or the fourth beam information in the third indication information are arranged in a preset position or in a preset order.

25. The method according to any one of claims 1 to 10, 13 to 24, characterized in that The plurality of target objects include the indication channel.

26. The method according to any one of claims 1 to 10, 13 to 24, characterized in that The multiple target objects include channels other than the indicator channel and reference signals.

27. The method according to claim 26, characterized in that The indicator channel is also used to indicate beam information of the indicator channel.

28. The method according to claim 27, characterized in that The indication channel includes: a first signaling field and a second signaling field, wherein the first signaling field is used to indicate common beam information of the multiple target objects, and the second signaling field is used to indicate beam information of the indication channel.

29. The method according to claim 27, characterized in that The indicator channel indicates the common beam information and the beam information of the indicator channel in the following manner: A preset first indicator channel format is used to indicate the beam information of the indicator channel, and a preset second indicator channel format is used to indicate the common beam information of the multiple target objects; or A preset first resource is used to indicate the beam information of the indication channel, and a preset second resource is used to indicate the common beam information of the multiple target objects.

30. The method according to claim 27, characterized in that The indication channel indicates the common beam information and the beam information of the indication channel in the following manner: adopting an indication channel in a predetermined format and / or transmitting the indication channel on predetermined resources, indicating the common beam information and the beam information of the indication channel, wherein the common beam information is the same as the beam information of the indication channel.

31. The method according to claim 27, characterized in that The beam information of the indicator channel is the TCI status information of the CORESET where the indicator channel is located.

32. The method according to claim 27, characterized in that If the indicator channel is a first group of common PDCCHs, then in the beam information indicated by the first group of common PDCCHs, the beam information of the indicator channel is different from the common beam information of the multiple target objects.

33. The method according to claim 27, characterized in that After using the indicator channel to indicate the beam information of the indicator channel, the method further includes: Receive second feedback information from the target terminal regarding the beam information of the indication channel. If the second feedback information is confirmation information, use the indicated beam information of the indication channel to transmit the indication channel to the target terminal. If the second feedback information is non-confirmation information, use the current beam information of the indication channel to transmit the indication channel to the target terminal.

34. The method according to claim 33, characterized in that The method also includes: if the second feedback information is not received within a preset time, using the current beam information of the indication channel to transmit the indication channel to the target terminal, or using the current beam information of the indication channel and the indicated beam information of the indication channel to transmit the indication channel to the target terminal.

35. The method according to claim 27, characterized in that After indicating the common beam information and the beam information of the indicator channel using the indicator channel, the method further includes at least one of the following: Transmitting the target object to the target terminal using the common beam information and the beam information currently used by the target object; The indicator channel is transmitted to the target terminal using the indicated beam information of the indicator channel and the beam information currently used by the indicator channel.

36. The method according to any one of claims 1 to 10 and 13 to 24, characterized in that Before using the indication channel to indicate the common beam information of multiple target objects to the target user equipment terminal, the method further includes: The preset command is used to indicate the beam information of the indication channel.

37. The method according to claim 36, characterized in that After using the indication channel to indicate the common beam information of multiple target objects to the target user equipment terminal, the method further includes: The indicator channel is transmitted to the target terminal using the indicated beam information of the indicator channel and the beam information currently used by the indicator channel.

38. The method according to claim 36, characterized in that After indicating the beam information of the indication channel using a preset command, the method further includes: Receive third feedback information from the target terminal in response to the preset command. If the third feedback information is confirmation information, use the beam information of the indication channel indicated by the preset command to send the indication channel; if the third feedback information is non-confirmation information, use the current beam information of the indication channel to send the indication channel.

39. The method according to claim 38, characterized in that The method also includes: if the third feedback information is not received within a predetermined time, using the current beam information of the indication channel to transmit the indication channel to the target terminal, or using the current beam information of the indication channel and the beam information of the indication channel indicated by the preset command to transmit the indication channel to the target terminal.

40. A beam determination method, characterized in that: Applied to terminals, including: Receive first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target objects include at least one of the following: a target channel and a target reference signal; Determining beam information of the multiple target objects according to the common beam information; Wherein, the indicator channel includes a first group of common PDCCHs; The receiving first target indication information transmitted on the indication channel includes: monitoring the first group of common PDCCHs, and acquiring the first target indication information transmitted on the first group of common PDCCHs, wherein the first group of common PDCCHs is used to indicate first target indication information of at least one terminal, and the at least one terminal includes the terminal; The monitoring the first group of public PDCCHs to obtain the first target indication information transmitted on the first group of public PDCCHs includes: Monitoring the first group of public PDCCHs, wherein the first group of public PDCCHs transmits first target indication information of at least one terminal, and the at least one terminal includes the terminal; The first target indication information of each terminal among the at least one terminal is acquired according to a preset position or a preset order of the first target indication information of the terminal on the first group of common PDCCHs.

41. The method according to claim 40, characterized in that The indication channel is a pre-agreed channel or a channel configured by the network.

42. The method according to claim 40, characterized in that Receiving first target indication information transmitted on an indication channel includes: Receiving downlink control information DCI in a predetermined format sent on the indication channel, wherein the DCI in the predetermined format includes a signaling field for indicating the common beam information; The first target indication information is obtained from the signaling domain.

43. The method according to claim 42, characterized in that The DCI in the predetermined format includes any one of the following: DCI carried by the physical downlink control channel PDCCH; DCI for scheduling data channel transmission; A DCI dedicated to indicating the common beam information.

44. The method according to claim 40, characterized in that The common beam information includes any one of the following: common transmission configuration indication TCI status information, common quasi-co-site QCL information and common spatial relationship information.

45. The method according to claim 40, characterized in that Receiving first target indication information transmitted on an indication channel includes: receiving the first target indication information transmitted by the indication channel on a preset control resource set CORESET, or receiving the first target indication information transmitted by the indication channel on a control resource set other than the preset control resource set.

46. ​​The method according to claim 40, characterized in that Before receiving the first target indication information transmitted on the indication channel, the method further includes: Receive information about the first group of public PDCCHs configured by the network side, or receive information about the first group of public PDCCHs indicated by the network side.

47. The method according to claim 40, characterized in that After receiving the first target indication information transmitted on the indication channel, the method further includes: If the state of the terminal changes, a second group of common PDCCHs is monitored to obtain the first target indication information transmitted on the second group of common PDCCHs, wherein the second group of common PDCCHs is a group of common PDCCHs other than the first group of common PDCCHs.

48. The method according to claim 40, characterized in that Monitoring the first group of common PDCCHs includes: If the state of the terminal changes, the first group of public PDCCHs are monitored according to the first beam information to obtain the first target indication information transmitted on the first group of public PDCCHs, wherein the first beam information is different from the second beam information, and the second beam information is the beam information of the first group of public PDCCHs monitored before the state of the terminal changes.

49. The method according to claim 47 or 48, characterized in that Before monitoring the first group of common PDCCHs and acquiring the first target indication information transmitted on the first group of common PDCCHs, the method further includes: First indication information is received, wherein the first indication information is used to indicate the preset position or preset order of first target indication information of the at least one terminal on the first group of common PDCCH, and the at least one terminal includes the terminal.

50. The method according to claim 49, characterized in that The method further comprises: Second indication information is received, wherein the second indication information is used to update the preset position or preset order of first target indication information of each terminal in the at least one terminal on the first group of common PDCCH or the second group of common PDCCH.

51. The method according to claim 47 or 48, characterized in that The second group of common PDCCH or the first beam information is determined by any one of the following: An uplink feedback resource currently used by the terminal; An uplink feedback resource used by the terminal to send feedback information of the indication channel; A beam report sent by the terminal; The terminal sends beam information used by the uplink channel; A physical random access channel PRACH sent by the terminal.

52. The method according to claim 40, characterized in that The indicator channel is a PDCCH dedicated to the terminal.

53. The method according to claim 40, characterized in that After receiving the first target indication information transmitted on the indication channel, the method further includes: Send first feedback information for the first target indication information on a first uplink feedback resource; wherein, if the first target indication information is successfully received, the first feedback information is confirmation information, and if the first target indication information is not successfully received, the first feedback information is non-confirmation information.

54. The method of claim 53, wherein: After receiving the first target indication information transmitted on the indication channel, the method further includes: If the first target indication information is successfully received, the target object is transmitted using the common beam information indicated by the first target indication information, or the target object is transmitted using the common beam information and the beam information currently used by the target object; If the first target indication information is not successfully received, the target object is transmitted using the beam information currently used by the target object.

55. The method of claim 40, wherein: The method also includes: receiving third indication information, wherein the third indication information is used to indicate third beam information and / or fourth beam information, wherein the third beam information is the beam information of each CORESET in the first CORESET group, and the fourth beam information is the beam information of each CORESET in the second CORESET group.

56. The method according to claim 55, characterized in that The receiving the first target indication information transmitted on the indication channel includes: receiving the first target indication information transmitted on the indication channel according to beam information corresponding to the CORESET where the indication channel is located; and / or The method further includes: transmitting the target object according to beam information corresponding to the CORESET where the target object is located, wherein the target object is a control channel.

57. The method according to claim 55, characterized in that The first CORESET group includes the CORESET with the smallest CORESET identifier, and the second CORESET group includes the CORESETs other than the CORESET with the smallest CORESET identifier.

58. The method according to claim 55, characterized in that Receiving the third indication information includes any one of the following: receiving the third indication information from the indication channel; Receive the third indication information sent through a MAC CE command.

59. The method according to claim 55, characterized in that The third indication information is used to indicate the third beam information and / or the fourth beam information, including any one of the following: The third indication information includes: the group identifier of the first CORESET group and the third beam information, and / or the group identifier of the second CORESET group and the fourth beam information; The third beam information and / or the fourth beam information in the third indication information are arranged in a preset position or in a preset order.

60. The method according to any one of claims 40 to 48, 52 to 57, characterized in that The plurality of target objects include the indication channel.

61. The method according to any one of claims 40 to 48, 52 to 57, characterized in that The multiple target objects include channels other than the indicator channel and reference signals.

62. The method according to claim 61, characterized in that The method further includes: receiving second target indication information transmitted on the indication channel, wherein the second target indication information is used to indicate beam information of the indication channel.

63. The method according to claim 62, characterized in that Receiving the first target indication information and the second target indication information transmitted on the indication channel includes: acquiring the first target indication information from a first signaling field of the indication channel, and acquiring the second target indication information from a second signaling field of the indication channel.

64. The method according to claim 62, characterized in that Receiving the first target indication information and the second target indication information transmitted on the indication channel includes: receiving, on the indication channel, the first target indication information transmitted in a first indication channel format, and receiving, on the indication channel, the second target indication information transmitted in a second indication channel format; or The first target indication information is received in a preset first resource, and the second target indication information is received in a preset second resource.

65. The method according to claim 62, characterized in that Receiving the first target indication information and the second target indication information transmitted on the indication channel includes: receiving the indication channel transmitted in a predetermined format and / or the indication channel transmitted on predetermined resources, and obtaining the first target indication information and the second target indication information, wherein the first target indication information and the second target indication information are the same.

66. The method according to claim 62, characterized in that After receiving the second target indication information transmitted on the indication channel, the method further includes: Second feedback information for the second target indication information is sent on a second uplink feedback resource, wherein if the second target indication information is successfully received, the second feedback information is confirmation information, and if the second target indication information is not successfully received, the second feedback information is non-confirmation information.

67. The method according to claim 66, characterized in that The method further comprises: If the second target indication information is successfully received, the indication channel is received using the beam information indicated by the second target indication information, or the indication channel is received using the beam information indicated by the second target indication information and the beam information currently used by the indication channel; If the second target indication information is not successfully received, the indication channel is received using the beam information currently used by the indication channel.

68. The method according to any one of claims 40 to 48, 52 to 57, characterized in that Before receiving the first target indication information transmitted on the indication channel, the method further includes: Receive beam information of the indicated channel indicated by a preset command.

69. The method according to claim 68, characterized in that After receiving the beam information of the indication channel indicated by the preset command, the method further includes: The third feedback information for the preset command is sent on the third uplink feedback resource, wherein if the preset command is successfully received, the third feedback information is confirmation information, and if the preset command is not successfully received, the third feedback information is non-confirmation information.

70. The method according to claim 69, characterized in that The method further comprises: If the preset command is successfully received, the indication channel is received using the beam information indicated by the preset command, or the indication channel is received using the beam information indicated by the preset command and the beam information currently used by the indication channel; If the preset command is not successfully received, the indicator channel is received using the beam information currently used by the indicator channel.

71. The method according to any one of claims 53, 66 and 69, characterized in that Before sending the first feedback information, the second feedback information, or the third feedback information, the method further includes at least one of the following: Receiving an uplink feedback resource configured or indicated by a network side, wherein the uplink feedback resource includes: a first uplink feedback resource, a second uplink feedback resource or a third uplink feedback resource; According to preset resource information, a first uplink feedback resource, a second uplink feedback resource or a third uplink feedback resource is determined.

72. The method according to claim 71, characterized in that The preset resource information includes any one of the following: downlink resources used by the indication channel, uplink feedback resources configured by the network, and pre-agreed uplink feedback resources.

73. The method according to claim 72, characterized in that Determining, according to preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource includes at least one of the following: Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the identification information of the terminal; Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to the preset resource information and in combination with the radio network temporary identifier RNTI of the terminal; Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using preset code information corresponding to the terminal; Determine, according to the preset resource information, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource using a preset time domain parameter corresponding to the terminal; According to the preset resource information, the first uplink feedback resource, the second uplink feedback resource or the third uplink feedback resource is determined using a preset frequency domain parameter corresponding to the terminal.

74. The method according to claim 73, characterized in that The RNTI is a cell radio network temporary identifier C-RNTI.

75. The method of claim 72, wherein: The preset resource information is periodic resources or non-periodic resources.

76. The method according to any one of claims 40 to 48, 52 to 57, characterized in that The method further comprises: If it is determined according to the indication of the indication channel or according to the preset command that the beam of the predetermined CORESET is switched, the monitoring timing of the predetermined CORESET is determined according to any one of the following items: Determined according to the beam information of the predetermined CORESET after switching or according to the synchronization signal block SSB corresponding to the predetermined CORESET; Determined according to predetermined configuration information from the network side, wherein the predetermined configuration information is sent by the network side using beam information of the predetermined CORESET after switching or beam information of the SSB corresponding to the predetermined CORESET; The predetermined CORESET is the CORESET with the smallest CORESET identifier.

77. A beam pointing device, characterized in that: include: An indication module, configured to indicate common beam information of multiple target objects to a target terminal using an indication channel, wherein the common beam information is used to indicate beam information of the multiple target objects, and the target objects include at least one of the following: a target channel and a target reference signal; Wherein, the indicator channel includes a first group of common PDCCHs; The using the indication channel to indicate the common beam information of multiple target objects to the target terminal includes: indicating the common beam information of at least one terminal on the first group of common PDCCHs, wherein the at least one terminal includes the target terminal; The indicating, on the first group of common PDCCHs, common beam information of at least one terminal includes: On the first group of common PDCCHs, common beam information of each terminal in the at least one terminal is carried according to a preset position or a preset order.

78. A beam determination device, characterized in that: include: A receiving module, configured to receive first target indication information transmitted on an indication channel, wherein the first target indication information is used to indicate common beam information of multiple target objects, wherein the target objects include at least one of the following: a target channel and a target reference signal; A determination module, configured to determine beam information of the plurality of target objects according to the common beam information; Wherein, the indicator channel includes a first group of common PDCCHs; The receiving first target indication information transmitted on the indication channel includes: monitoring the first group of common PDCCHs, and acquiring the first target indication information transmitted on the first group of common PDCCHs, wherein the first group of common PDCCHs is used to indicate first target indication information of at least one terminal, and the at least one terminal includes the terminal; The monitoring the first group of public PDCCHs to obtain the first target indication information transmitted on the first group of public PDCCHs includes: Monitoring the first group of public PDCCHs, wherein the first group of public PDCCHs transmits first target indication information of at least one terminal, and the at least one terminal includes the terminal; The first target indication information of each terminal among the at least one terminal is acquired according to a preset position or a preset order of the first target indication information of the terminal on the first group of common PDCCHs.

79. A network side device, characterized in that: include: A memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method according to any one of claims 1 to 39.

80. A terminal, characterized in that: include: A memory, a processor, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method as claimed in any one of claims 40 to 76.

81. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the method as described in any one of claims 1 to 39; or implements the steps of the method as described in any one of claims 40 to 76.

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