Beam indication method, network side equipment and terminal

Abstract

The invention discloses a beam indication method, network side equipment and a terminal, and belongs to the field of communication. The beam indication method may comprise: indicating common beam information of a plurality of target objects to a target terminal by using an indication channel, the common beam information being used for indicating beam information of the plurality of target objects, and the target objects comprising at least one of the following items: a target channel and a target reference signal. The signaling overhead indicated by each channel and the reference channel beam can be reduced.

Description

[0001] This divisional application of the invention application has a filing date of May 27, 2020, an application number of 202010463308.5, and an invention title of "Beam Indication Method, Network Side Device and Terminal". Technical Field

[0002] This application relates to the field of communications, and in particular, to a beam indication method, a network side device and a terminal. Background Art

[0003] After beam measurement and beam reporting, the network can perform beam indication on the downlink and uplink channels or reference signals for establishing a beam link between the network and the UE to achieve the transmission of the channels or reference signals.

[0004] In the related art, for the beam indication of the Physical Downlink Control Channel (PDCCH), the network side configures K Transmission Configuration Indication (TCI) states for each Control Resource Set (CORESET) using Radio Resource Control (RRC) signaling. When K>1, 1 TCI state is indicated or activated by the Media Access Control (MAC) Control Element (CE). When K = 1, no additional MAC CE command is required. The UE can obtain the receiving beam for receiving the PDCCH according to this TCI state. For the beam indication of the Physical Downlink Shared Channel (PDSCH), the network side configures M TCI states through RRC signaling and then activates 2 using the MAC CE command. NOne TCI state is then used to notify the TCI state through the N-bit TCI field of the Downlink Control Information (DCI). The UE can then obtain the receiving beam for receiving the PDSCH based on this 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 for the terminal, it indicates its Quasi-colocation (QCL) information. The UE can then obtain the receiving beam for receiving the CSI-RS based on this 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 there are multiple pieces of spatial relation information configured for the PUCCH resource, one of them is indicated or activated using MAC-CE. The UE can then obtain the transmitting beam of the PUCCH based on this spatial relation information. For the beam indication of the Physical Uplink Shared Channel (PUSCH), the spatial relation information of the PUSCH is that when the DCI carried by the PDCCH schedules the PUSCH, a Sounding Reference Signal Resource Indicator (SRI) is indicated in the DCI, and this SRI is used to indicate the spatial relation information of the PUSCH. The UE can then obtain the transmitting beam of the PUSCH based on this spatial relation information. For the beam indication of the 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 then obtain the transmitting beam of the SRS based on this spatial relation information.

[0005] In the multi-TRP (multi-transmission node) scenario, according to the sending manner of control information, beam indication can be divided into single downlink control information (single DCI) and multi-DCI. The former is to send DCI on one TRP (transmission node) to schedule data transmission on multiple TRPs, and the latter is to send DCI on multiple TRPs to separately schedule data transmission on their respective TRPs.

[0006] It can be seen that in the related art, the beam indication mechanisms of various channels and reference signals are different, resulting in a large signaling overhead for beam indication. Summary of the Invention

[0007] The purpose of the embodiments of this application is to provide a beam indication method, a network-side device, and a terminal, so as to solve the problem of large signaling overhead for beam indication caused by different beam indication mechanisms of various channels and reference signals.

[0008] In a first aspect, an embodiment of this application provides a beam indication method, which is applied to a network-side device and includes: Using an indication channel to indicate common beam information of multiple target objects to a target terminal, where the common beam information is used to indicate the 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 this application provides a beam indication method, which is applied to a terminal and includes: Receiving first target indication information transmitted on an indication channel, where the first target indication information is used to indicate common 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; determining the beam information of the multiple target objects according to the common beam information.

[0010] In a third aspect, an embodiment of this application provides a beam indication device, including: an indication module, configured to use an indication channel to indicate common beam information of multiple target objects to a target terminal, where the common beam information is used to indicate the 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.

[0011] Optionally, the indication channel is transmitted on a preset control resource set (CORESET) or on a control resource set outside the preset control resource set.

[0012] Optionally, the indication channel includes a first set of common PDCCHs; the indication module uses the indication channel to indicate the common beam information of multiple target objects to the target user terminal, including: indicating the common beam information of at least one terminal on the first set of common PDCCHs, where the at least one terminal includes the target terminal.

[0013] Optionally, it may further include: a configuration module for configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal.

[0014] Optionally, the indication module indicates the common beam information of at least one terminal on the first set of common PDCCHs, including: carrying the common beam information of each terminal in the at least one terminal at a preset position or in a preset order on the first set of common PDCCHs.

[0015] Optionally, it further includes: a first sending module for sending first indication information to the at least one terminal, where the first indication information indicates the predetermined position or preset order of the common beam information of each terminal in the at least one terminal on the first set of common PDCCHs.

[0016] Optionally, the indication module is further configured to: after configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal, if the state of a first terminal in the at least one terminal changes, use a second set of common PDCCHs to indicate the common beam information of the first terminal, where the second set of common PDCCHs is a set of common PDCCHs other than the first set of common PDCCHs.

[0017] Optionally, the indication module is further configured to: after configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal, if the state of a first terminal in the at least one terminal changes, use first beam information to send the first set of common PDCCHs for indicating the common beam information of the first terminal, where the first beam information is different from second beam information, and the second beam information is the beam information of the first set of common PDCCHs transmitted before the state of the first terminal changes.

[0018] Optionally, the second set of common PDCCHs or the first beam information is determined by any one of the following: The uplink feedback resource currently used by the first terminal; The uplink feedback resource 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 PRACH sent by the first terminal.

[0019] Optionally, it further includes: a second sending module, configured to, if the state of the first terminal among the at least one terminal changes, send second indication information to the at least one terminal, where the second indication information updates the 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 PDCCHs or the second group of common PDCCHs.

[0020] Optionally, the indication channel includes a dedicated PDCCH. 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.

[0021] Optionally, it may further include: a receiving module, configured to receive first feedback information of the target terminal for the common beam information.

[0022] Optionally, it may further include: a transmission module, configured to, if the first feedback information is an acknowledgement message, use the common beam information to transmit the target object to the target terminal; if the first feedback information is a non-acknowledgement message, use the beam information currently used by the target object to transmit the target object to the target terminal.

[0023] Optionally, the transmission module may further be configured to: if the first feedback information of the target terminal for the common beam information is not received within a predetermined time, use the beam information currently used by the target object to transmit the target object to the target terminal, or use the common beam information and the beam information currently used by the target object to transmit the target object to the target terminal.

[0024] Optionally, it further includes: an allocation module, configured to allocate resources for the target terminal to send the first feedback information and receive the first feedback information on the resources.

[0025] Optionally, the transmission module is further configured 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.

[0026] Optionally, it further includes: a determination module, configured 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.

[0027] 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 common beam information indicated by the indication channel, where the target object is a control channel.

[0028] Optionally, 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.

[0029] Optionally, it further includes a third sending module, configured to send third indication information to the target terminal, where the third indication information is used to indicate the third beam information and / or the fourth beam information.

[0030] Optionally, the third sending module sending the third indication information to the target terminal includes any one of the following: sending the third indication information through the indication channel; sending the third indication information through a Media Access Control (MAC) Control Element (CE) command.

[0031] Optionally, the third indication information being used to indicate the third beam information and / or the fourth beam information includes 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 at a preset position or in a preset order.

[0032] Optionally, multiple target objects include the indication channel.

[0033] Optionally, multiple target objects include channels and reference signals other than the indication channel.

[0034] Optionally, the indication channel is further used to indicate the beam information of the indication channel.

[0035] Optionally, the indication channel includes: a first signaling domain and a second signaling domain, where the first signaling domain is used to indicate the common beam information of the multiple target objects, and the second signaling domain is used to indicate the beam information of the indication channel.

[0036] Optionally, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: Use a pre-set first indication channel format to indicate the beam information of the indication channel, and use a pre-set second indication channel format to indicate the common beam information of the multiple target objects; or Use a pre-set first resource to indicate the beam information of the indication channel, and use a pre-set second resource to indicate the common beam information of the multiple target objects.

[0037] Optionally, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: Transmit the indication channel in a predetermined format of the indication channel and / or on a predetermined resource to indicate the common beam information and the beam information of the indication channel, where the common beam information is the same as the beam information of the indication channel.

[0038] Optionally, the beam information of the indication channel is the TCI state information of the CORESET where the indication channel is located.

[0039] Optionally, if the indication channel is the first group of common PDCCHs, then among the beam information indicated by the first group of common PDCCHs, the beam information of the indication channel is different from the common beam information of the multiple target objects.

[0040] Optionally, it further includes: a receiving module, configured to receive second feedback information of the target terminal regarding the beam information of the indication channel. If the second feedback information is an acknowledgment message, then use the indicated beam information of the indication channel to transmit the indication channel to the target terminal; if the second feedback information is a non-acknowledgment message, then use the current beam information of the indication channel to transmit the indication channel to the target terminal.

[0041] Optionally, the receiving module is further configured to, if the second feedback information is not received within a preset time, use the current beam information of the indication channel to transmit the indication channel to the target terminal, or use the current beam information of the indication channel and the indicated beam information of the indication channel to transmit the transmission channel to the target terminal.

[0042] Optionally, after using the indication channel to indicate the common beam information and the beam information of the indication channel, the transmission module is further configured to perform at least one of the following: Transmit the target object to the target terminal by using the common beam information and the beam information currently used by the target object; Transmit the indication channel to the target terminal by using the beam information of the indicated indication channel and the beam information currently used by the indication channel.

[0043] Optionally, the indication module may further be configured to: indicate the beam information of the indication channel by using a preset command.

[0044] Optionally, the transmission module is further configured to transmit the indication channel to the target terminal by using the beam information of the indicated indication channel and the beam information currently used by the indication channel.

[0045] Optionally, the receiving module may further be configured to: receive third feedback information of the target terminal for the preset command. If the third feedback information is an acknowledgement message, transmit the indication channel by using the beam information of the indication channel indicated by the preset command; if the third feedback information is a non-acknowledgement message, transmit the indication channel by using the current beam information of the indication channel.

[0046] Optionally, if the receiving module does not receive the third feedback information within a predetermined time, it is further configured to transmit the indication channel to the target terminal by using the current beam information of the indication channel, or transmit the transmission channel to the target terminal by using the current beam information of the indication channel and the beam information of the indication channel indicated by the preset command.

[0047] In a fourth aspect, an embodiment of the present application provides a beam determination device, including: a receiving module, configured to receive first target indication information transmitted on an indication channel, where the first target indication information is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal; a determination module, configured to determine the beam information of the plurality of target objects according to the common beam information.

[0048] Optionally, the indication channel is a pre-agreed channel or a channel configured by a network.

[0049] Optionally, the receiving module may be configured to: Receive downlink control information DCI in a predetermined format sent on the indication channel, where the DCI in the predetermined format includes a signaling field for indicating the common beam information; Obtain the first target indication information from the signaling field.

[0050] Optionally, the DCI of the predetermined format includes any one of the following: The DCI carried by the physical downlink control channel PDCCH; The DCI for scheduling data channel transmission; The DCI dedicated to indicating the public beam information.

[0051] Optionally, the public beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi co-location QCL information, and common spatial relationship information.

[0052] Optionally, the receiving module can also be used for: Receiving the first target indication information for indicating the channel transmission on a preset control resource set CORESET, or receiving the first target indication information for indicating the channel transmission on a control resource set outside the preset control resource set.

[0053] Optionally, the indication channel includes a first set of common PDCCHs; the receiving module 1 can also be used for: Receiving the configuration information of the first set of common PDCCHs, or receiving the indication information of the first set of common PDCCHs.

[0054] Optionally, receiving the first target indication information transmitted on the indication channel includes: monitoring the first set of common PDCCHs, and obtaining the first target indication information transmitted on the first set of common PDCCHs, where the first set of common PDCCHs is used to indicate the first target indication information of at least one terminal, and the at least one terminal includes the terminal.

[0055] Optionally, the receiving module can also be used for: monitoring the first set of common PDCCHs, where the first set of common PDCCHs transmits the first target indication information of at least one terminal, and the at least one terminal includes the terminal; obtaining the first target indication information of the terminal according to the preset position or preset order of the first target indication information of each terminal in the at least one terminal on the first set of common PDCCHs.

[0056] Optionally, the receiving module can also be used for: if the state of the terminal changes, monitoring a second set of common PDCCHs, and obtaining the first target indication information transmitted on the second set of common PDCCHs, where the second set of common PDCCHs is a set of common PDCCHs other than the first set of common PDCCHs.

[0057] Optionally, listening to the first set of common PDCCHs includes: if the state of the terminal changes, listening to the first set of common PDCCHs according to first beam information, and obtaining first target indication information transmitted on the first set of common PDCCHs, where the first beam information is different from second beam information, and the second beam information is the beam information of the first set of common PDCCHs listened to before the state of the terminal changes.

[0058] Optionally, the receiving module may also be used to: receive first indication information, where the first indication information is used to indicate a preset position or a preset order of first target indication information of the at least one terminal on the first set of common PDCCHs, and the at least one terminal includes the terminal.

[0059] Optionally, the receiving module may also be used to: receive second indication information, where the second indication information is used to update a preset position or a preset order of first target indication information of each terminal in the at least one terminal on the first set of common PDCCHs or the second set of common PDCCHs.

[0060] Optionally, the second set of common PDCCHs or the first beam information is determined by any one of the following: The uplink feedback resource currently used by the terminal; The uplink feedback resource used by the terminal to send feedback information of the indication channel; The beam report sent by the terminal; The beam information used by the terminal to send an uplink channel; The physical random access channel PRACH sent by the terminal.

[0061] Optionally, the indication channel is a PDCCH dedicated to the terminal.

[0062] Optionally, it may further include: a first sending module, configured to send first feedback information for the first target indication information on a first uplink feedback resource; where if the first target indication information is successfully received, the first feedback information is an acknowledgement message, and if the first target indication information is not successfully received, the first feedback information is a non-acknowledgement message.

[0063] Optionally, it may further include: a first transmission module, configured to if the first target indication information is successfully received, transmit the target object using the common beam information indicated by the first target indication information, or 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, transmit the target object using the beam information currently used by the target object.

[0064] Optionally, the receiving module may further be configured to: receive third indication information, where the third indication information is used to indicate third beam information and / or fourth beam information, where the third beam information is the beam information of each CORESET in a first CORESET group, and the fourth beam information is the beam information of each CORESET in a second CORESET group.

[0065] Optionally, the receiving module is further configured to receive 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 1 is further configured to transmit the target object according to the beam information corresponding to the CORESET where the target object is located, where the target object is a control channel.

[0066] Optionally, 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.

[0067] Optionally, receiving the third indication information includes any one of the following: Receiving the third indication information from the indication channel; Receiving the third indication information sent through a MAC CE command.

[0068] 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: 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 a preset order.

[0069] Optionally, multiple target objects include the indication channel.

[0070] Optionally, multiple target objects include channels and reference signals other than the indication channel.

[0071] Optionally, the receiving module may further be configured to: receive second target indication information transmitted on the indication channel, where the second target indication information is used to indicate the beam information of the indication channel.

[0072] Optionally, receiving the first target indication information and the second target indication information transmitted on the indication channel includes: obtaining the first target indication information from a first signaling domain of the indication channel, and obtaining the second target indication information from a second signaling domain of the indication channel.

[0073] Optionally, the receiving module may also be configured 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 at a preset first resource and receive the second target indication information at a preset second resource.

[0074] Optionally, the receiving module may also be configured to: receive the indication channel transmitted in a predetermined format and / or the indication channel transmitted on a predetermined resource, and obtain the first target indication information and the second target indication information, where the first target indication information and the second target indication information are the same.

[0075] Optionally, it may further include: a second transmitting module, configured to transmit second feedback information for the second target indication information on a second uplink feedback resource, where if the second target indication information is successfully received, the second feedback information is an acknowledgment message, and if the second target indication information is not successfully received, the second feedback information is a non-acknowledgment message.

[0076] Optionally, it may further include: a second transmission module, configured to, if the second target indication information is successfully received, receive the indication channel using the beam information indicated by the second target indication information, or 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, receive the indication channel using the beam information currently used by the indication channel.

[0077] Optionally, the receiving module may also be configured to: receive the beam information of the indication channel indicated by a preset command.

[0078] Optionally, it may further include: a third transmitting module, configured to transmit third feedback information for the preset command on a third uplink feedback resource, where if the preset command is successfully received, the third feedback information is an acknowledgment message, and if the preset command is not successfully received, the third feedback information is a non-acknowledgment message.

[0079] Optionally, the receiving module may also be configured to, if the preset command is successfully received, receive the indication channel using the beam information indicated by the preset command, or 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, receive the indication channel using the beam information currently used by the indication channel.

[0080] Optionally, the receiving module may also perform at least one of the following: Receive an uplink feedback resource configured or indicated by the network side, where the uplink feedback resource includes the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource; Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to preset resource information.

[0081] Optionally, the preset resource information includes any one of the following: the downlink resource used by the indication channel, the uplink feedback resource configured by the network, and the pre-agreed uplink feedback resource.

[0082] Optionally, it may further include a determination module configured to perform 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 identity (RNTI) 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 using the preset code information corresponding to 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 using the preset time domain parameter corresponding to 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 using the preset frequency domain parameter corresponding to the terminal.

[0083] Optionally, the RNTI is a cell radio network temporary identity (C-RNTI).

[0084] Optionally, the preset resource information is a periodic resource or an aperiodic resource.

[0085] Optionally, it further includes: a determination module, configured to, if it is determined according to the indication of the indication channel or according to a preset command that the beam of a predetermined CORESET has switched, determine the monitoring opportunity of the predetermined CORESET according to any one of the following: determine according to the beam information of the predetermined CORESET after switching or according to the synchronization signal block SSB corresponding to the predetermined CORESET; determine according to predetermined configuration information from the network side, where 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; where the predetermined CORESET is the CORESET with the smallest CORESET identifier.

[0086] In a fifth aspect, an embodiment of the present application provides a network-side device, including: a memory, a processor, and a program or instruction stored on the memory and executable on the processor, where when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0087] In a sixth aspect, an embodiment of the present application provides a terminal, including: a memory, a processor, and a program or instruction stored on the memory and executable on the processor, where when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0088] In a seventh aspect, an embodiment of the present application provides a readable storage medium, where a program or instruction is stored on the readable storage medium, and 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.

[0089] In an eighth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured 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.

[0090] In the embodiment of the present application, by using an indication channel to indicate the common beam information of multiple target objects to a target terminal, where the common beam information is used to indicate the beam information of multiple target objects, and the target objects include a target channel and / or a target reference signal, it is possible to indicate unified common beam information for multiple target objects and reduce the signaling overhead of beam indication. BRIEF DESCRIPTION OF THE DRAWINGS

[0091] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 It is a block diagram of a wireless communication system in an embodiment of the present application; Figure 2 It is a schematic flowchart of a beam indication method provided by an embodiment of the present application; Figure 3 It is a schematic flowchart of a beam determination method provided by an embodiment of the present application; Figure 4 It is a schematic structural diagram of a beam indication device provided by an embodiment of the present application; Figure 5 It is a schematic block diagram of a beam determination device provided by an embodiment of the present application; Figure 6 It is a block diagram of a terminal provided by an embodiment of the present application; Figure 7 It is a block diagram of a network-side device provided by an embodiment of the present application. Detailed implementation manners

[0092] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0093] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same category, 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 indicates at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0094] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. However, the following description describes the New Radio (NR) system for example purposes, and the NR term 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.

[0095] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. terminal-side devices. Wearable devices include: bracelets, earphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can be a base station or a core network. Among them, the base station can be called a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a 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 (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments 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.

[0096] Next, with reference to the accompanying drawings, the beam indication method, network-side device, and terminal provided by the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0097] Figure 2 A flowchart of a beam indication method provided by an embodiment of the present application. This 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. As Figure 2 shown, this method may include the following steps.

[0098] S201: Use an indication channel to indicate the common beam information of multiple target objects to a target terminal, where the common beam information is used to indicate the 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.

[0099] In the embodiments of the present application, the target channel includes but is not limited to: PDCCH, PDSCH, PUSCH, PUCCH, etc.; the target reference signal includes but is not limited to: Synchronization Signal Block (SSB), CSI-RS, SRS, etc.

[0100] For a high-frequency communication system, 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 the embodiments of the present application, the network-side device can use the indication channel to indicate or update the beam information of multiple subsequent target objects to the target terminal, so as to achieve indicating unified common beam information for multiple target objects, reducing the signaling overhead of beam indication, and can quickly switch the beam information of the target object, improving the flexibility of beam information indication.

[0101] It should be noted that, in a possible implementation manner of the present application, the indication channel can be a pre-agreed channel or a channel configured by the network.

[0102] In a possible implementation manner, on the indication channel, the common beam information can be indicated by DCI in a predetermined format. Therefore, the above S201 can include: using the indication channel to send DCI in a preset format to indicate the common beam information of multiple target objects, where the DCI in the predetermined format includes a signaling field for indicating the common beam information.

[0103] Among them, the DCI in the predetermined format can include any one of the following: (1) The DCI carried by the Physical Downlink Control Channel (PDCCH); for example, the beam indication information in any DCI format (format) during the transmission of the scheduling channel or reference signal can be used to indicate the common beam information, for example, DCI format 1_1 or DCI format 0_1.

[0104] (2) DCI for scheduling data channel transmission; that is, the DCI can be a specific DCI format carried by the PDCCH. For example, the beam indication information in DCI format 1_1 for scheduling the Physical Downlink Shared Channel (PDSCH) can be used to indicate the public beam information.

[0105] (3) DCI dedicated to indicating public beam information. That is, the DCI format dedicated to transmitting the public beam information, and the DCI includes a signaling field for indicating the public beam information.

[0106] In a possible implementation, the public beam information may include but is not limited to any of the following: public Transmission Configuration Indication (TCI) state information, public Quasi-colocation (QCL) information, and public spatial relation information. That is, the beam information of multiple target objects is public TCI state information, public QCL information, or public spatial relation information.

[0107] Possibly, the indication channel can be transmitted on a preset Control Resource Set (CORESET), or on a control resource set outside the preset control resource set. For example, the indication channel can be transmitted on the CORESET with the smallest identification, or on other CORESETs outside the CORESET with the smallest identification. It can also be transmitted only on CORESET#0 (i.e., the CORESET with the smallest identification), or on other CORESETs except CORESET#0.

[0108] In a possible implementation, the indication channel can use group common PDCCH or dedicated PDCCH. That is, the indication channel can be the group common PDCCH for a group of terminals, or the dedicated PDCCH for a single terminal.

[0109] Therefore, in a possible implementation, the indication channel may include: a first group of common PDCCH (group common PDCCH), and S201 may include: indicating, on the first group of common PDCCH, the common beam information of at least one terminal, where the at least one terminal includes the target terminal. In this possible implementation, the network-side device may carry, on the first group of common PDCCH, the common beam information of each terminal in the at least one terminal 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 of common PDCCH, and the common beam information of each terminal in the at least one terminal is arranged on the first group of common PDCCH according to a preset position or a preset order.

[0110] In a possible implementation, in order to enable each terminal in the at least one terminal to obtain the information of the first group of PDCCH, before S201, this beam indication method may further include: configuring the information of the first group of common PDCCH for the at least one terminal, or indicating the information of the first group of common PDCCH to the at least one terminal. Each terminal in the at least one terminal may determine the first group of common PDCCH according to the configured or indicated information of the first group of common PDCCH, and the at least one terminal monitors this group of PDCCH.

[0111] In another possible implementation, in order to enable each terminal in the at least one terminal to obtain 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 the at least one terminal on the first group of common PDCCH, this beam indication method may further include: sending a first indication information to the at least one terminal, where the first indication information indicates the predetermined position or the predetermined order of the common beam information of each terminal in the at least one terminal on the first group of common PDCCH. Through this first indication information, each terminal in the at least one terminal may obtain the position or order of its common beam information on the first group of common PDCCH.

[0112] In the above possible implementation, after configuring the first group of common PDCCH for the at least one terminal, the state of a certain terminal may change. For example, the position of a certain terminal moves (such as reaching a certain displacement) or rotates (such as reaching a certain angle), etc., then other group common PDCCH may be used to transmit the common beam information of this terminal. Therefore, this beam indication method may further include: if the state of the first terminal in the at least one terminal changes, then use a second group of common PDCCH to indicate the common beam information of the first terminal, where the second group of common PDCCH is a group common PDCCH other than the first group of common PDCCH.

[0113] In the above possible implementation manners, the network device may further reconfigure or indicate information of a second set of common PDCCHs for the first terminal, so that the first terminal can learn about and monitor the second set of common PDCCHs. The second set of common PDCCHs may be shared by the first terminal and other terminals (possibly excluding the terminals with unchanged states among the at least one terminal), that is, the first terminal and other terminals form a group of terminals.

[0114] It can be understood that the second set of common PDCCHs may be configured by the network device before the change of the first terminal, or may also be configured after detecting the change of the first terminal. There is no specific limitation in the embodiments of the present application.

[0115] In a possible implementation manner, the information of the configured or indicated group common PDCCHs may include the TCI state information of the group common PDCCH. Then, the first terminal may use the TCI state information in the information of the reconfigured or indicated group common PDCCH (i.e., the second set of common PDCCHs) to monitor the group common PDCCH (i.e., the second set of common PDCCHs); while the terminals with unchanged states among the at least one terminal monitor the original group common PDCCH (i.e., the first set of common PDCCHs). The network device separately sends the first set of common PDCCHs and the second set of common PDCCHs.

[0116] In another possible implementation manner, after configuring the information of the first set of common PDCCHs for at least one terminal or indicating the information of the first set of common PDCCHs to at least one terminal, if the state of the first terminal among the at least one terminal changes, this beam indication method may further include: sending the first set of common PDCCHs using first beam information to indicate the common beam information of the first terminal, where the first beam information is different from the second beam information, and the second beam information is the beam information of the first set of common PDCCHs transmitted before the change of the state of the first terminal. That is to say, in this possible implementation manner, the network reconfigures or indicates the beam information of the first set of common PDCCHs (i.e., the first beam information), the network uses the first beam information to send the first set of common PDCCHs, and the first set of common PDCCHs sent using the first beam information indicates the common beam information of the first terminal with a changed state, while the first set of common PDCCHs sent using the original beam information (i.e., the second beam information) indicates the common beam information of other terminals with unchanged states.

[0117] It can be understood that the first beam information may be configured or indicated by the network-side device before the change of the first terminal, or may be configured or indicated after detecting the change of the first terminal state. In the embodiments of the present application, no specific limitation is made.

[0118] Optionally, the above-mentioned second set of common PDCCH or the first beam information may be determined by any of the following: the uplink feedback resource currently used by the first terminal; the uplink feedback resource used by the first terminal to send the 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 (PRACH) resource sent by the first terminal.

[0119] Optionally, a corresponding relationship between the uplink feedback resource used by the UE that can be preset and the beam information of the group common PDCCH or the group common PDCCH may be set in advance, and then the second set of common PDCCH or the first beam information may be determined according to the uplink feedback resource currently used by the first terminal or the uplink feedback resource used by the first terminal to send the feedback information of the indication channel.

[0120] In the above possible implementation manners, since the state of the first terminal changes, the position or order of the common beam information carried on the first set of common PDCCH may change. Therefore, the beam indication method may further include: sending second indication information to the at least one terminal, where the second indication information is used to update the preset position or preset order of the common beam information of each terminal in the at least one terminal on the first set of common PDCCH or the second set of common PDCCH. That is to say, when the state of a certain terminal in the at least one terminal changes, the network-side device may indicate or update the position or carrying order of the common beam information of each terminal on the first common set of PDCCH or the second common set of PDCCH through the second indication information.

[0121] In another possible implementation manner, the indication channel may also use a dedicated PDCCH, that is, the PDCCH dedicated to each terminal. Therefore, in S201 above, the following content may be executed: carry the common beam information in the common beam information signaling field in the DCI on the dedicated PDCCH.

[0122] In a possible implementation manner, in order for the network-side device to know whether the target terminal successfully receives 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.

[0123] In the above possible implementation manners, optionally, after receiving the first feedback information of the target terminal for the common beam information, the method may further include: if the first feedback information is an acknowledgment message, use the common beam information to transmit the target object to the target terminal; if the first feedback information is a non-acknowledgment message, use the beam information currently used by the target object to transmit the target object to the target terminal.

[0124] 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, use the beam information currently used by the target object, or use the indicated common beam information and the beam information currently used by the target object to transmit the target object to the target terminal. That is, after the network side device indicates the common beam information to the target terminal, it is possible that the first feedback information is not received (it may be that the target terminal does not receive the common beam information and thus does not send the first feedback information, or it may be that the first feedback information (for example, ACK or NACK) is lost during transmission). 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 in the subsequent process, or 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.

[0125] In the above possible implementation manners, the resource for the target terminal to send the first feedback information may be pre-agreed, or may be the uplink feedback resource allocated or indicated by the network side device. Therefore, in one possible implementation manner, the beam indication method may further include: allocating a resource for the target terminal to send the first feedback information, and receiving the first feedback information according to the resource. For example, the network side device may pre-allocate an uplink feedback resource for the target terminal and listen for the first feedback information fed back by the target terminal on the uplink feedback resource.

[0126] In another possible implementation manner, 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 manner, after receiving the common beam information, the terminal does not feedback 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 manner, the occupation of uplink resources can be reduced.

[0127] In another possible implementation, without using a feedback mechanism, the CORESET can also be grouped. 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.

[0128] In the above possible implementation, 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 (e.g., CORESET#0), and the second CORESET group includes the CORESETs other than the CORESET with the smallest CORESET identifier (e.g., other CORESETs except CORESET#0).

[0129] 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 further include: sending third indication information to the target terminal, where 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 of the CORESET groups, or can also indicate the beam information of both CORESET groups at the same time. In practical applications, the third indication information can be sent through an indication channel, or can also be sent through a Medium Access Control (MAC) Control Element (CE) command.

[0130] Among them, 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 to say, in the third indication information, the CORESET group corresponding to each beam information can be explicitly indicated; or, 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. That is, in the third indication information, the CORESET group corresponding to each beam information is not explicitly indicated, but the third beam information and / or the fourth beam information are arranged according to a preset position or a preset order.

[0131] In the above possible implementation manners, the indication channel may be transmitted in one or more CORESET groups among different CORESET groups. That is, the indication channel may be transmitted on the first CORESET group and / or the second CORESET group. Then, among the third beam information and the fourth beam information, one 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 indicated by the MAC CE command. Thus, the transmission reliability and robustness of the indication channel are enhanced.

[0132] In the above possible implementation manners, when a certain target object is a control channel (such as PDCCH), the DCI carried by the target object may be transmitted in one or more CORESET groups among different CORESET groups. That is, the target object is transmitted on the first CORESET group and / or the second CORESET group. Then, among the third beam information and the fourth beam information, one is the beam information currently used by the target object, and the other is the common beam information indicated by the indication channel. Thus, the transmission reliability and robustness of the control signaling are enhanced.

[0133] In the above possible implementation manners, the network may only indicate the beam information of one CORESET group, and the beam information of the other CORESET group remains the beam information currently used by it (i.e., the original beam information).

[0134] In each of the above possible implementation manners, the multiple target objects may include the indication channel. That is, the common beam information indicated by the indication channel is also the beam information of the indication channel.

[0135] Alternatively, in each of the above possible implementation manners, the multiple target objects may not include the indication channel. That is, the multiple target objects include channels and reference signals other than the indication channel.

[0136] When the above multiple target objects include channels and reference signals other than the indication channel, in a possible implementation manner, the indication channel is further used to indicate the beam information of the indication channel. That is, the indication channel can not only indicate the common beam information, but also indicate its own beam information. In this possible implementation manner, the indication channel may be transmitted on a specific CORESET, such as CORESET #0 or other CORESETs other than CORESET #0.

[0137] In the above possible implementation manners, the indication channel may include: a first signaling domain and a second signaling domain, where the first signaling domain is used to indicate the common beam information of multiple target objects, and the second signaling domain is used to indicate the beam information of the indication channel. For example, the indication channel may include a common beam information signaling domain and an indication channel beam information signaling domain, where the common beam information signaling domain is used to indicate the beam information of the other channels and reference signals; the indication channel beam information signaling domain is used to indicate the beam information of the indication channel.

[0138] Alternatively, the channel or reference signal to which the indicated beam information belongs may also be indicated by the format or resources 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 multiple target objects respectively. For example, in a possible implementation manner, the indication channel may indicate the common beam information and the beam information of the indication channel in the following ways: use a preset first indication channel format to indicate the beam information of the indication channel, and use a preset second indication channel format to indicate the common beam information of multiple target objects; or use a preset first resource to indicate the beam information of the indication channel, and use a preset second resource to indicate the common beam information of multiple target objects. The indication channel format may be a DCI format.

[0139] Alternatively, the same format or the same resource may also be used to indicate the beam information of the indication channel and the beam information of the other channels and reference signals, that is, the beam information of the indication channel is the same as the beam information of the other channels and reference signals. Therefore, in another possible implementation manner, the indication channel may also indicate the common beam information and the beam information of the indication channel in the following ways: use an indication channel in a predetermined format and / or transmit the indication channel on a predetermined resource to indicate the common beam information and the beam information of the indication channel, where the common beam information is the same as the beam information of the indication channel.

[0140] In the above possible implementation manners, the beam information of the indication channel may be the TCI state information of the CORESET where the indication channel is located.

[0141] In the above possible implementation manners, if the indication channel is the first group of common PDCCHs, among the beam information indicated by the first group of common PDCCHs, the beam information of the indication channel is different from the common beam information of multiple target objects. That is to say, if the indication channel is the first group of common PDCCHs, the beam information indicated by the first group of common PDCCHs includes the beam information of the indication channel and the common beam information of each terminal in at least one terminal. Among them, the beam information of the indication channel is different from the common beam information of multiple target objects. It 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 in the at least one terminal.

[0142] In a possible implementation, after using the indication channel to indicate the beam information of the indication channel, the beam indication method may further include: receiving second feedback information of the target terminal for the beam information of the indication channel; if the second feedback information is an acknowledgement message, using the indicated beam information of the indication channel to transmit the indication channel to the target terminal; if the second feedback information is a non-acknowledgement message, using the current beam information of the indication channel.

[0143] In practical applications, it is also possible that the second feedback information is not received. For example, the target terminal does not receive the beam information of the indication information, so the second feedback information is not fed back, or 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 not being received. Therefore, in a possible implementation, the method may also, if the second feedback information is not received within a preset time, 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.

[0144] In an embodiment of the present application, the target terminal may separately send feedback information, that is, the first feedback information and the second feedback information, for the beam information of the indicated indication channel and the common beam information. Alternatively, the target terminal may also send a unified feedback information for the beam information of the indicated indication channel and the common beam information, that is, the first feedback information and the second feedback information are the same feedback information. This feedback information indicates whether the target terminal successfully receives the beam information of the indication channel and the common beam information. If the target terminal successfully receives the beam information of the indication channel and the common beam information, it sends an acknowledgment message. If the target terminal fails to receive any one of the beam information of the indication channel and the common beam information, it sends a non-acknowledgment message. After receiving the feedback information sent by the target terminal, if the feedback information is an acknowledgment message, the network-side device uses the beam information of the indicated indication channel to transmit the indication channel and uses the common beam information to transmit multiple target objects. If the feedback information is a non-acknowledgment message, the network-side device uses the beam information currently used by the target object to transmit the target object to the target terminal and uses the beam information currently used by the indication channel to transmit the indication channel to the target terminal. If no feedback information is received within a preset time, the network-side device uses the beam information currently used by the target object, or the common beam information and the beam information currently used by the target object, to transmit the target object to the target terminal; and uses the beam information currently used by the indication channel, or the beam information of the indicated indication channel and the beam information currently used by the indication channel, to transmit the indication channel to the target terminal.

[0145] In a possible implementation manner, to ensure the reliability and robustness of the 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 further 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 beam information of the indicated indication channel and the beam information currently used by the indication channel to transmit the indication channel to the target terminal.

[0146] In a possible implementation manner, 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 the beam information of the indication channel.

[0147] Among them, the preset command may be a MAC CE command.

[0148] Among them, the beam information indicated by the preset command may be the beam information of the CORESET where the indication channel is located.

[0149] In the above possible implementation manners, 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.

[0150] Alternatively, in another possible implementation manner, 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 one possible implementation manner, after using the preset command to indicate the beam information of the indication channel, the beam indication method may further include: receiving third feedback information from the target terminal for the preset command; if the third feedback information is an acknowledgement message, using the beam information of the indication channel indicated by the preset command to send the indication channel; if the third feedback information is a non-acknowledgement message, using the current beam information of the indication channel to send the indication channel.

[0151] In the above possible implementation manners, the network side may not receive the third feedback information (it may be that the target terminal does not receive the preset command, or it may be that the third feedback information fed back by the target terminal is lost during transmission). Optionally, the method may further 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 beam information of the indicated indication channel and the current beam information of the indication channel to send the indication channel.

[0152] As can be seen from the above embodiments, through the beam indication method of the embodiments of the present application, it is possible to reduce the signaling overhead of beam indication for each channel and the reference channel, and speed up the beam switching process, while increasing the robustness and flexibility of beam indication.

[0153] It should be noted that for the beam indication method provided by the embodiments of the present application, the execution subject may be a beam indication device, or a control module in the beam indication device for executing the beam indication method. In the embodiments of the present application, the beam indication method is executed by the beam indication device as an example to illustrate the beam indication device provided by the embodiments of the present application.

[0154] Figure 3 FIG. 3 is a schematic flowchart of a beam determination method provided by an embodiment of the present application. This method may be executed by a terminal. In other words, the method 300 may be executed by software or hardware installed on the terminal. As Figure 3 shown, the method may include the following steps.

[0155] S301, receive first target indication information transmitted on an indication channel, where the first target indication information is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0156] S302: Determine the beam information of multiple target objects according to the public beam information.

[0157] In an embodiment of the present application, the terminal receives first target indication information transmitted on an indication channel, and then determines the beam information of multiple target objects according to the public beam information indicated by the first target indication information. This can reduce the signaling overhead of beam indication for each channel and the reference channel.

[0158] It should be noted that method 300 corresponds to method 200, and the specific details of the same content are similar to those of method 200 and will not be elaborated in this embodiment.

[0159] In a possible implementation, the indication channel can be a pre-agreed channel or a channel configured by the network.

[0160] In a possible implementation, the above step S301 can be performed as follows: Receive DCI in a predetermined format transmitted on the indication channel, where the DCI in the predetermined format includes a signaling field for indicating public beam information; Obtain the first target indication information from the signaling field.

[0161] Among them, the DCI in the predetermined format can include any one of the following: DCI carried by the physical downlink control channel PDCCH; DCI for scheduling data channel transmission; DCI dedicated to indicating public beam information.

[0162] The DCI in the predetermined format in this embodiment is the same as that in method 200. For specific details, reference can be made to the description in method 200 and will not be elaborated here.

[0163] In a possible implementation, the public beam information can include any one of the following: public transmission configuration indication TCI state information, public QCL information, and public spatial relationship information.

[0164] In a possible implementation, the above step S301 can be performed as follows: Receive the first target indication information transmitted on the indication channel on a preset CORESET, or receive the first target indication information transmitted on the indication channel on a control resource set outside the preset control resource set.

[0165] In a possible implementation, the indication channel can include group common PDCCH or dedicated PDCCH.

[0166] In a possible implementation, the indication channel can include a first group of common PDCCH. In an embodiment of the present application, before step S301, the beam indication method may further include: Receive the information of the first group of common PDCCH configured by the network side, or receive the information of the first group of common PDCCH indicated by the network side.

[0167] In the above possible implementation manners, step S301 may perform the following operations: monitor a first set of common PDCCHs, and obtain first target indication information transmitted on the first set of common PDCCHs, where the first set of common PDCCHs is used to indicate the first target indication information of at least one terminal, and the at least one terminal includes the terminal.

[0168] In a possible implementation manner, monitoring the first set of common PDCCHs and obtaining the first target indication information transmitted on the first set of common PDCCHs may specifically include: monitoring the first set of common PDCCHs, where the first set of common PDCCHs transmits the first target indication information of at least one terminal, and the 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 set of common PDCCHs.

[0169] In a possible implementation manner, after step S301, the beam indication method may further include: if the state of the terminal changes, monitor a second set of common PDCCHs, and obtain first target indication information transmitted on the second set of common PDCCHs, where the second set of common PDCCHs is a set of common PDCCHs other than the first set of common PDCCHs.

[0170] It can be understood that when the state of the terminal changes, the terminal monitors a new set of common PDCCHs sent by the network side device, that is, the second set of common PDCCHs, to obtain the first target indication information.

[0171] In a possible implementation manner, monitoring the first set of common PDCCHs may include: if the state of the terminal changes, monitor the first set of common PDCCHs according to first beam information, and obtain first target indication information transmitted on the first set of common PDCCHs, where the first beam information is different from second beam information, and the second beam information is the beam information of the first set of common PDCCHs monitored before the state of the terminal changes.

[0172] It can be understood that when the state of the terminal changes, the terminal may monitor the first set of common PDCCHs according to the new beam information, that is, the first beam information, to obtain the first target indication information.

[0173] In a possible implementation, before listening to the first set of common PDCCHs and obtaining the first target indication information transmitted on the first set of common PDCCHs, the beam indication method may further include: receiving first indication information, where the first indication information is used to indicate a preset position or a preset order of the first target indication information of at least one terminal on the first set of common PDCCHs, and the at least one terminal includes the terminal.

[0174] It can be understood that the preset position or the preset order of the first target indication information of at least one terminal on the first set of common PDCCHs is sent by the network-side device to each terminal through the first indication information, and then each terminal can obtain the first target indication information by listening to the first set of common PDCCHs.

[0175] In a possible implementation, the beam indication method may further include: receiving second indication information, where the second indication information is used to update the preset position or the preset order of the first target indication information of each terminal in at least one terminal on the first set of common PDCCHs or the second set of common PDCCHs. For example, when the state of a certain terminal in at least one terminal changes, the network-side device may indicate or update the position or the bearing order of the common beam information of each terminal on the first set of common PDCCHs or the second set of common PDCCHs.

[0176] In a possible implementation, the above-mentioned second set of common PDCCHs or the first beam information may be determined by any one of the following: The uplink feedback resource currently used by the terminal; The uplink feedback resource used by the terminal to send the feedback information of the indication channel; The beam report sent by the terminal; The beam information used by the terminal to send the uplink channel; The physical random access channel PRACH sent by the terminal.

[0177] In a possible implementation, after step S301, the beam indication method may further include: sending first feedback information for the first target indication information on the first uplink feedback resource; where, if the first target indication information is successfully received, the first feedback information is an acknowledgment message, and if the first target indication information is not successfully received, the first feedback information is a non-acknowledgment message.

[0178] It can be understood that the terminal may feedback the first feedback information for the first target indication information on the uplink feedback resource indicated by the network-side device. Specifically, it may be determined whether to feedback an acknowledgment message or a non-acknowledgment message according to whether the first target indication information is successfully received.

[0179] In a possible implementation, after step S301, the beam indication method may further include: if the first target indication information is successfully received, transmitting the target object using the common beam information indicated by the first target indication information, or transmitting the target object using the common beam information indicated by the first target indication information and the beam information currently used by the target object; if the first target indication information is not successfully received, transmitting the target object using the beam information currently used by the target object.

[0180] That is, if the terminal successfully receives the first target indication information, it feeds back an acknowledgement message to the network-side device and may use the common beam information indicated by the first target indication information. Additionally, since the first feedback message may be lost during transmission, the target object may also be transmitted using both the common beam information indicated by the first target indication information and the beam information currently used by the target object. Conversely, if the terminal does not successfully receive the first target indication information, it feeds back a non-acknowledgement message to the network-side device and may transmit the target object using the beam information currently used by the target object. In a possible implementation, the beam indication method may further include: receiving third indication information, where the third indication information is used to indicate third beam information and / or fourth beam information, where 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.

[0181] It can be understood that the network-side device may group the CORESETs and then indicate the beam information of each group. Correspondingly, the terminal may receive the beam information of each CORESET in the first CORESET group, i.e., the third beam information, or may also receive the beam information of each CORESET in the second CORESET group, i.e., the fourth beam information. 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 may be the current beam information of the indication channel, and the other may be the beam information of the indication channel indicated by the indication channel or the beam information of the indication channel indicated by a predetermined command (e.g., MAC CE). For details, reference may be made to the description in the above method 200. Alternatively, if a control channel of a certain target object 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 may be the current beam information of the control channel, and the other may be the common beam information indicated by the indication channel.

[0182] Correspondingly, if it is indicated that the indication 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 indication channel can be received according to the beam information corresponding to the CORESET where the indication 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, where the target object is a control channel. Among them, the first CORESET group can include the CORESET with the smallest CORESET identifier, and the second CORESET group can include the CORESETs other than the CORESET with the smallest CORESET identifier.

[0183] In a possible implementation manner, receiving the third indication information can include any one of the following: receiving the third indication information from the indication channel; receiving the third indication information sent through the MAC CE command.

[0184] In a possible implementation manner, the third indication information is used to indicate the third beam information and / or the fourth beam information, and can include 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 a preset order.

[0185] In the above possible implementation manner, the terminal can also feedback feedback information for the third indication information. For example, a feedback confirmation information is successfully received, a feedback non-confirmation information is not successfully received, etc.

[0186] In a possible implementation manner, the above multiple target objects can include an indication channel, or can also include channels and reference signals other than the indication channel.

[0187] In a possible implementation manner, when the above multiple target objects include channels and reference signals other than the indication channel, the beam indication method can further include: receiving the second target indication information transmitted on the indication channel, where the second target indication information is used to indicate the beam information of the indication channel. That is, the indication channel can not only indicate the common beam information, but also indicate its own beam information.

[0188] 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: obtaining the first target indication information from the first signaling domain of the indication channel and obtaining the second target indication information from the second signaling domain 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 at a preset first resource and receiving the second target indication information at a preset second resource.

[0189] 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 the indication channel transmitted in a predetermined format and / or the indication channel transmitted on a predetermined resource, and obtaining the first target indication information and the second target indication information, where the first target indication information and the second target indication information are the same.

[0190] In a 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 a second uplink feedback resource, where if the second target indication information is successfully received, the second feedback information is an acknowledgement message, and if the second target indication information is not successfully received, the second feedback information is a non-acknowledgement message; if the second target indication information is successfully received, receiving the indication channel using the beam information indicated by the second target indication information, or receiving the indication channel 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, receiving the indication channel using the beam information currently used by the indication channel.

[0191] In a possible implementation, before step S301, the beam indication method may further include: receiving the beam information of the indication channel indicated by a preset command.

[0192] The preset command may be a MAC CE command.

[0193] 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, where if the preset command is successfully received, the third feedback information is an acknowledgement message, and if the preset command is not successfully received, the third feedback information is a non-acknowledgement message.

[0194] In the above possible implementation manners, the beam indication method may further include: if a preset command is successfully received, receiving an indication channel using the beam information indicated by the preset command, or receiving an 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, receiving the indication channel using the beam information currently used by the indication channel.

[0195] 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: (1) Receiving an uplink feedback resource configured or indicated by the network side, where the uplink feedback resource includes a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource; (2) Determining a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource according to preset resource information.

[0196] That is, the terminal may feedback the first feedback information, the second feedback information, or the third feedback information on the same uplink feedback resource, or may feedback the first feedback information, the second feedback information, or the third feedback information on different uplink feedback resources.

[0197] Wherein, the preset resource information may include any one of the following: the downlink resource used by the indication channel, the uplink feedback resource configured by the network, and the pre-agreed uplink feedback resource.

[0198] Wherein, the downlink resource may include the cases where the indication channel is a group common PDCCH or a dedicated PDCCH respectively. For example, the terminal may send feedback information after N time slots or sub-time slots or symbols after the group common PDCCH or the dedicated PDCCH ends, where N may be determined according to specific applications.

[0199] In a possible implementation manner, determining a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource according to preset resource information may include at least one of the following: (1) Determining a first uplink feedback resource, a second uplink feedback resource, or a third uplink feedback resource according to the preset resource information in combination with the identification information of the terminal; for example, if the terminal sends feedback information after N time slots or sub-time slots or symbols after the group common PDCCH or the dedicated PDCCH ends, the values of N corresponding to each identification information may be pre-agreed, and the terminal determines the corresponding N according to its identification information and feeds back on the corresponding time slot or sub-time slot or symbol, so that different terminals may send feedback information on different uplink resources.

[0200] (2)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 Identity (RNTI) of the terminal. (3)Determine 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. (4)Determine 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 time-domain parameter corresponding to the terminal. (5)Determine 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 frequency-domain parameter corresponding to the terminal.

[0201] In the above possible implementation manners, the RNTI may be a Cell Radio Network Temporary Identifier (C-RNTI).

[0202] It can be understood that determining the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource may be to determine the uplink feedback resource information of each terminal according to the preset resource information, in combination with the terminal id or RNTI (such as C-RNTI cell-RNTI) used to uniquely identify the terminal; it may also be that from the uplink feedback resources configured by the network, each terminal uses the terminal id or RNTI (such as C-RNTI) that uniquely identifies the terminal to select its own uplink feedback resource information; it may also be to determine its own uplink feedback resource information according to the preset resource information and the preset code information corresponding to each terminal, that is, each terminal uses the preset resource information in a code-division manner; it may also be to determine its own uplink feedback resource information according to the preset resource information and the preset time-domain parameters (such as time-domain offset, period, etc.) corresponding to each terminal, that is, each terminal uses the preset resource information in a time-division manner; it may also be to determine its own uplink feedback resource information according to the preset resource information and the preset frequency-domain parameters (such as frequency-domain offset, frequency hopping parameters, etc.) corresponding to each terminal, that is, each terminal uses the preset resource information in a frequency-division manner.

[0203] Optionally, the preset resource information may be periodic resources or aperiodic resources. For example, PUCCH resources, aperiodic PUSCH resources, configured grant PUSCH resources, etc.

[0204] Optionally, the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource may also be periodic resources or aperiodic resources.

[0205] In each of the above possible implementation manners, since the indication channel indicates the handover target object and / or the beam information of the indication channel, or the preset command indicates the beam information of the indication channel, and the indication 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 further cause the terminal to need to update the listening opportunity of the predetermined CORESET. Therefore, in a possible implementation manner, the method may further include: if it is determined according to the indication of the indication channel or the indication of the preset command that the beam of the predetermined CORESET is switched, then determine the listening opportunity of the predetermined CORESET according to any one of the following: (1) Determine according to the beam information of the predetermined CORESET after the handover or according to the synchronization signal block SSB corresponding to the predetermined CORESET; (2) Determine according to the predetermined configuration information from the network side, where the predetermined configuration information is sent by the network side using the beam information of the predetermined CORESET after the handover or the beam information of the SSB corresponding to the predetermined CORESET.

[0206] In the above possible implementation manner, the predetermined CORESET is the CORESET with the smallest CORESET identifier, such as CORESET#0.

[0207] In the above possible implementation manner, for the beam indication information of CORESET#0, the transmission behavior of CORESET#0 can be determined according to the acknowledgment information / non-acknowledgment information fed back by the terminal. For specific descriptions, refer to the specific descriptions in each of the above possible implementation manners.

[0208] As can be seen from the above embodiments, through the beam determination method of the embodiments of the present application, while reducing the signaling overhead of beam indication for each channel and reference channel and accelerating the beam handover process, the robustness and flexibility of beam indication can be increased.

[0209] It should be noted that for the beam determination method provided by the embodiments of the present application, the execution subject may be a beam determination device, or a control module in the beam determination device for executing the beam determination method. In the embodiments of the present application, the beam determination method is executed by the beam determination device as an example to illustrate the beam determination device provided by the embodiments of the present application.

[0210] Figure 4 FIG. 400 shows a schematic structural diagram of a beam indication device 400 provided by an embodiment of the present application. The beam indication device 400 includes: an indication module 401, configured to use an indication channel to indicate the common beam information of a plurality of target objects to a target user terminal, where the common beam information is used to indicate the beam information of the plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0211] In a possible implementation, the indication channel is a pre-agreed channel or a channel configured by the network.

[0212] In a possible implementation, the indication module 401 uses the indication channel to indicate the 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, where the DCI in the predetermined format includes a signaling field for indicating the common beam information.

[0213] In a possible implementation, the DCI in the predetermined format includes any one of the following: The DCI carried by the physical downlink control channel PDCCH; The DCI for scheduling data channel transmission; The DCI dedicated to indicating the common beam information.

[0214] In a possible implementation, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi co-location QCL information, and common spatial relationship information.

[0215] In a possible implementation, the indication channel is transmitted on a preset control resource set CORESET or on a control resource set outside the preset control resource set.

[0216] In a possible implementation, the indication channel includes a first set of common PDCCHs; the indication module 401 uses the indication channel to indicate the common beam information of multiple target objects to the target user terminal, including: indicating the common beam information of at least one terminal on the first set of common PDCCHs, where the at least one terminal includes the target terminal.

[0217] In a possible implementation, it may further include: a configuration module for configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal.

[0218] In a possible implementation, the indication module 401 indicates the common beam information of at least one terminal on the first set of common PDCCHs, including: carrying the common beam information of each terminal in the at least one terminal at a preset position or in a preset order on the first set of common PDCCHs.

[0219] In a possible implementation, it further includes: a first sending module, configured to send first indication information to the at least one terminal, where the first indication information indicates a predetermined position or a preset order of the common beam information of each terminal in the at least one terminal on the first set of common PDCCHs.

[0220] In a possible implementation, the indication module 401 is further configured to: after configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal, if the state of a first terminal in the at least one terminal changes, use a second set of common PDCCHs to indicate the common beam information of the first terminal, where the second set of common PDCCHs is a set of common PDCCHs other than the first set of common PDCCHs.

[0221] In a possible implementation, the indication module 401 is further configured to: after configuring the information of the first set of common PDCCHs for the at least one terminal or indicating the information of the first set of common PDCCHs to the at least one terminal, if the state of a first terminal in the at least one terminal changes, use first beam information to send the first set of common PDCCHs for indicating the common beam information of the first terminal, where the first beam information is different from second beam information, and the second beam information is the beam information of the first set of common PDCCHs transmitted before the state of the first terminal changes.

[0222] In a possible implementation, the second set of common PDCCHs or the first beam information is determined by any one of the following: The uplink feedback resource currently used by the first terminal; The uplink feedback resource 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 an uplink channel; The physical random access channel PRACH sent by the first terminal.

[0223] In a possible implementation, it further includes: a second sending module, configured to, if the state of a first terminal in the at least one terminal changes, send second indication information to the at least one terminal, where the second indication information updates a preset position or a preset order of the common beam information of each terminal in the at least one terminal on the first set of common PDCCHs or the second set of common PDCCHs.

[0224] In a 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.

[0225] In a possible implementation, it may further include: a receiving module, configured to receive first feedback information of the target terminal for the common beam information.

[0226] In a possible implementation, it may further include: a transmission module, configured to, if the first feedback information is an acknowledgement message, use the common beam information to transmit the target object to the target terminal; if the first feedback information is a non-acknowledgement message, use the beam information currently used by the target object to transmit the target object to the target terminal.

[0227] In a possible implementation, the transmission module may further be configured to: if the first feedback information of the target terminal for the common beam information is not received within a predetermined time, use the beam information currently used by the target object to transmit the target object to the target terminal, or use the common beam information and the beam information currently used by the target object to transmit the target object to the target terminal.

[0228] In a possible implementation, it further includes: an allocation module, configured to allocate resources for the target terminal to send the first feedback information, and receive the first feedback information on the resources.

[0229] In a possible implementation, the transmission module is further configured 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.

[0230] In a possible implementation, it further includes: a determination module, configured 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.

[0231] In a 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 common beam information indicated by the indication channel, where the target object is a control channel.

[0232] In a possible implementation, 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.

[0233] In a possible implementation, it further includes a third sending module for sending third indication information to the target terminal, where the third indication information is used to indicate the third beam information and / or the fourth beam information.

[0234] In a possible implementation, the third sending module sending the third indication information to the target terminal includes 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 element CE command.

[0235] In a possible implementation, the third indication information being used to indicate the third beam information and / or the fourth beam information includes 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 a preset order.

[0236] In a possible implementation, multiple target objects include the indication channel.

[0237] In a possible implementation, multiple target objects include channels and reference signals other than the indication channel.

[0238] In a possible implementation, the indication channel is further used to indicate the beam information of the indication channel.

[0239] In a possible implementation, the indication channel includes: a first signaling domain and a second signaling domain, where the first signaling domain is used to indicate the common beam information of the multiple target objects, and the second signaling domain is used to indicate the beam information of the indication channel.

[0240] In a possible implementation, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: Use a preset first indication channel format to indicate the beam information of the indication channel, and use a preset second indication channel format to indicate the common beam information of the multiple target objects; or Use a preset first resource to indicate the beam information of the indication channel, and use a preset second resource to indicate the common beam information of the multiple target objects.

[0241] In a possible implementation, the indication channel indicates the common beam information and the beam information of the indication channel in the following manner: Transmit the indication channel in a predetermined format of the indication channel and / or on a predetermined resource to indicate the common beam information and the beam information of the indication channel, where the common beam information is the same as the beam information of the indication channel.

[0242] In a possible implementation, the beam information of the indication channel is the TCI state information of the CORESET where the indication channel is located.

[0243] In a possible implementation, if the indication channel is the first group of common PDCCHs, then among the beam information indicated by the first group of common PDCCHs, the beam information of the indication channel is different from the common beam information of the multiple target objects.

[0244] In a possible implementation, it further includes: a receiving module, configured to receive second feedback information of the target terminal regarding the beam information of the indication channel. If the second feedback information is an acknowledgment message, then use the indicated beam information of the indication channel to transmit the indication channel to the target terminal; if the second feedback information is a non-acknowledgment message, then use the current beam information of the indication channel to transmit the indication channel to the target terminal.

[0245] In a possible implementation, the receiving module is further configured to, if the second feedback information is not received within a preset time, use the current beam information of the indication channel to transmit the indication channel to the target terminal, or use the current beam information of the indication channel and the indicated beam information of the indication channel to transmit the transmission channel to the target terminal.

[0246] In a possible implementation, the transmission module is further configured to perform at least one of the following after using the indication channel to indicate the common beam information and the beam information of the indication channel: Transmit the target object to the target terminal by using the common beam information and the beam information currently used by the target object; Transmit the indication channel to the target terminal by using the beam information of the indicated indication channel and the beam information currently used by the indication channel.

[0247] In a possible implementation, the indication module 401 may further be configured to: indicate the beam information of the indication channel by using a preset command.

[0248] In a possible implementation, the transmission module is further configured to transmit the indication channel to the target terminal by using the beam information of the indicated indication channel and the beam information currently used by the indication channel.

[0249] In a possible implementation, the receiving module may further be configured to: receive third feedback information of the target terminal for the preset command, and if the third feedback information is an acknowledgement message, transmit the indication channel by using the beam information of the indication channel indicated by the preset command; if the third feedback information is a non-acknowledgement message, transmit the indication channel by using the current beam information of the indication channel.

[0250] In a possible implementation, the receiving module is further configured to, if the third feedback information is not received within a predetermined time, transmit the indication channel to the target terminal by using the current beam information of the indication channel, or transmit the transmission channel to the target terminal by using the current beam information of the indication channel and the beam information of the indication channel indicated by the preset command.

[0251] As can be seen from the above embodiments, through the network-side device of the embodiments of the present application, the signaling overhead of beam indication for each channel and the reference channel can be reduced, the beam switching process can be accelerated, and the robustness and flexibility of beam indication can be increased.

[0252] Figure 5 FIG. shows a schematic structural diagram of a beam determination device 500 provided by an embodiment of the present application, as Figure 5 shown, the beam determination device 500 includes: a receiving module 501, configured to receive first target indication information transmitted on an indication channel, where the first target indication information is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal; a determination module 502, configured to determine the beam information of the plurality of target objects according to the common beam information.

[0253] In a possible implementation, the indication channel is a pre-agreed channel or a channel configured by the network.

[0254] In a possible implementation, in the terminal 500 of the embodiments of the present application, the receiving module 501 may be configured to: Receive downlink control information DCI in a predetermined format transmitted on the indication channel, where the DCI in the predetermined format includes a signaling field for indicating the common beam information; Obtain the first target indication information from the signaling field.

[0255] In a possible implementation, 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; DCI dedicated to indicating the common beam information.

[0256] In a possible implementation, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi co-location QCL information, and common spatial relationship information.

[0257] In a possible implementation, the receiving module 501 may further be configured to: Receive the first target indication information transmitted on the indication channel on a preset control resource set CORESET, or receive the first target indication information transmitted on the indication channel on a control resource set outside the preset control resource set.

[0258] In a possible implementation, the indication channel includes a first set of common PDCCHs; the receiving module 501 may further be configured to: Receive the configuration information of the first set of common PDCCHs, or receive the indication information of the first set of common PDCCHs.

[0259] In a possible implementation, receiving the first target indication information transmitted on the indication channel includes: monitoring the first set of common PDCCHs, and obtaining the first target indication information transmitted on the first set of common PDCCHs, where the first set of common PDCCHs is used to indicate the first target indication information of at least one terminal, and the at least one terminal includes the terminal.

[0260] In a possible implementation, the receiving module 501 may also be configured to: monitor the first set of common PDCCHs, where at least one terminal's first target indication information is transmitted on the first set of common PDCCHs, and the at least one terminal includes the terminal; obtain 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 set of common PDCCHs.

[0261] In a possible implementation, the receiving module 501 may also be configured to: if the state of the terminal changes, monitor a second set of common PDCCHs, and obtain the first target indication information transmitted on the second set of common PDCCHs, where the second set of common PDCCHs is a set of common PDCCHs other than the first set of common PDCCHs.

[0262] In a possible implementation, monitoring the first set of common PDCCHs includes: if the state of the terminal changes, then monitor the first set of common PDCCHs according to first beam information, and obtain the first target indication information transmitted on the first set of common PDCCHs, where the first beam information is different from second beam information, and the second beam information is the beam information of the first set of common PDCCHs monitored before the state of the terminal changes.

[0263] In a possible implementation, the receiving module 501 may also be configured to: receive first indication information, where the first indication information is used to indicate a preset position or a preset order of the first target indication information of the at least one terminal on the first set of common PDCCHs, and the at least one terminal includes the terminal.

[0264] In a possible implementation, the receiving module 501 may also be configured to: receive second indication information, where the second indication information is used to update 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 set of common PDCCHs or the second set of common PDCCHs.

[0265] In a possible implementation, the second set of common PDCCHs or the first beam information is determined by any one of the following: The uplink feedback resource currently used by the terminal; The uplink feedback resource used by the terminal to send feedback information of the indication channel; The beam report sent by the terminal; The beam information used by the terminal to send an uplink channel; The physical random access channel PRACH sent by the terminal.

[0266] In a possible implementation, the indication channel is a PDCCH dedicated to the terminal.

[0267] In a possible implementation, it may further include: a first sending module, configured 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 an acknowledgement message, and if the first target indication information is not successfully received, the first feedback information is a non-acknowledgement message.

[0268] In a possible implementation, it may further include: a first transmission module, configured to, if the first target indication information is successfully received, transmit the target object using the common beam information indicated by the first target indication information, or 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, transmit the target object using the beam information currently used by the target object.

[0269] In a possible implementation, the receiving module 501 may further be configured to: receive third indication information, where the third indication information is used to indicate third beam information and / or fourth beam information, and the third beam information is the beam information of each CORESET in a first CORESET group, and the fourth beam information is the beam information of each CORESET in a second CORESET group.

[0270] 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, where the target object is a control channel.

[0271] In a possible implementation, 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.

[0272] In a possible implementation, receiving the third indication information includes any one of the following: Receiving the third indication information from the indication channel; Receiving the third indication information sent through a MAC CE command.

[0273] In a possible implementation, the third indication information is used to indicate the third beam information and / or the fourth beam information, including any 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; In the third indication information, the third beam information and / or the fourth beam information are arranged in a preset position or a preset order.

[0274] In a possible implementation, multiple target objects include the indication channel.

[0275] In a possible implementation, multiple target objects include channels and reference signals other than the indication channel.

[0276] In a possible implementation, the receiving module 501 may further be configured to: receive second target indication information transmitted on the indication channel, where the second target indication information is used to indicate the beam information of the indication channel.

[0277] In a possible implementation, receiving the first target indication information and the second target indication information transmitted on the indication channel includes: obtaining the first target indication information from the first signaling domain of the indication channel, and obtaining the second target indication information from the second signaling domain of the indication channel.

[0278] In a possible implementation, the receiving module 501 may further be configured to: receive the first target indication information transmitted on the indication channel in a first indication channel format, and receive the second target indication information transmitted on the indication channel in a second indication channel format; or receive the first target indication information in a preset first resource, and receive the second target indication information in a preset second resource.

[0279] In a possible implementation, the receiving module 501 may further be configured to: receive the indication channel transmitted in a predetermined format and / or the indication channel transmitted on a predetermined resource, and obtain the first target indication information and the second target indication information, where the first target indication information and the second target indication information are the same.

[0280] In a possible implementation, it may further include: a second sending module, configured to send second feedback information for the second target indication information on a second uplink feedback resource, where if the second target indication information is successfully received, the second feedback information is an acknowledgment message, and if the second target indication information is not successfully received, the second feedback information is a non-acknowledgment message.

[0281] In a possible implementation, it may further include: a second transmission module, configured to, if the second target indication information is successfully received, receive the indication channel using the beam information indicated by the second target indication information, or 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, receive the indication channel using the beam information currently used by the indication channel.

[0282] In a possible implementation, the receiving module 501 may further be configured to: receive the beam information of the indication channel indicated by a preset command.

[0283] In a possible implementation, it may further include: a third sending module, configured to send third feedback information for the preset command on a third uplink feedback resource, where, if the preset command is successfully received, the third feedback information is an acknowledgement message, and if the preset command is not successfully received, the third feedback information is a non-acknowledgement message.

[0284] In a possible implementation, the receiving module 501 may further be configured to, if the preset command is successfully received, receive the indication channel using the beam information indicated by the preset command, or 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, receive the indication channel using the beam information currently used by the indication channel.

[0285] In a possible implementation, the receiving module 501 may further perform at least one of the following: Receive an uplink feedback resource configured or indicated by the network side, where the uplink feedback resource includes: the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource; Determine the first uplink feedback resource, the second uplink feedback resource, or the third uplink feedback resource according to preset resource information.

[0286] In a possible implementation, the preset resource information includes any one of the following: the downlink resource used by the indication channel, the uplink feedback resource configured by the network, and the uplink feedback resource agreed in advance.

[0287] In a possible implementation, it may further include: a determination module, configured to perform 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 identity (RNTI) 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 by using the preset code information corresponding to 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 by using the preset time domain parameter corresponding to 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 by using the preset frequency domain parameter corresponding to the terminal.

[0288] In a possible implementation, the RNTI is a cell radio network temporary identity (C-RNTI).

[0289] In a possible implementation, the preset resource information is periodic resource or aperiodic resource.

[0290] In a possible implementation, it further includes: a determination module, configured to, if it is determined according to the indication of the indication channel or according to a preset command that the beam of a predetermined CORESET has switched, determine the monitoring occasion of the predetermined CORESET according to any one of the following: determine according to the beam information of the predetermined CORESET after the switch or according to the synchronization signal block (SSB) corresponding to the predetermined CORESET; determine according to the predetermined configuration information from the network side, where the predetermined configuration information is sent by the network side using the beam information of the predetermined CORESET after the switch or the beam information of the SSB corresponding to the predetermined CORESET; where the predetermined CORESET is the CORESET with the smallest CORESET identifier.

[0291] As can be seen from the above embodiments, through the beam determination device of the embodiments of the present application, it is possible to reduce the signaling overhead of the beam indication of each channel and the reference channel and speed up the beam switching process, while increasing the robustness and flexibility of the beam indication.

[0292] Figure 6 It is a structural block diagram of a terminal provided by 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. Each component in the terminal 600 is coupled together through a bus system 605. It can be understood that the bus system 605 is used to achieve connection and communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 6 all kinds of buses are labeled as the bus system 605.

[0293] Among them, the user interface 603 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touchpad, or a touch screen, etc.).

[0294] It can be understood that the memory 602 in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory. Among them, the non-volatile memory may 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 may 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 (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM). The memory 602 of the systems and methods described in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

[0295] In some embodiments, the memory 602 stores the following elements, executable modules, or data structures, or subsets thereof, or extended sets thereof: an operating system 6021 and an application program 6022.

[0296] Among them, the operating system 6021 includes various system programs, such as the framework layer, the core library layer, the driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application program 6022 includes various application programs, such as a Media Player, a Browser, etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application may be included in the application program 6022.

[0297] 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 when the program or instruction is executed by the processor 601, the following steps are implemented: Receive first target indication information transmitted on an indication channel, where the first target indication information is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal; Determine the beam information of the plurality of target objects according to the common beam information.

[0298] The method disclosed in the embodiment of the present application above may 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 may be completed by the integrated logic circuit in the hardware of the processor 601 or by an instruction in the form of software. The above-mentioned processor 601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiment of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register and other mature computer-readable storage media in the art. The computer-readable storage media is located in the memory 602, and the processor 601 reads the information in the memory 602 and combines its hardware to complete the steps of the above method. Specifically, a computer program is stored on the computer-readable storage media, and when the computer program is executed by the processor 601, each step of the method embodiment of the uplink control information transmission as described above is implemented.

[0299] It can be understood that these embodiments described in the embodiments of the present application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general purpose processors, controllers, microcontrollers, microprocessors, or other electronic units for performing the functions described in the present application, or a combination thereof.

[0300] For software implementation, the techniques described in the embodiments of the present application can be implemented by modules (such as procedures, functions, etc.) that execute 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 inside or outside the processor.

[0301] The terminal 600 can implement each process implemented by the terminal in the foregoing embodiments. To avoid repetition, details are not described herein again.

[0302] Please refer to Figure 7 , Figure 7 FIG. is a block diagram of a network-side device provided by an embodiment of the present application, which can implement each detail in the above methods 200 and 300 as a network-side device and achieve the same effect. As Figure 7 shown, the network-side device 700 includes: a processor 701, a transceiver 702, a memory 703, a user interface 704, and a bus interface 705, where: In the embodiments 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 when the program or instruction is executed by the processor 701, the following steps are implemented: Using an indication channel, indicating common beam information of a plurality of target objects to a target terminal, where the common beam information is used to indicate beam information of the plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal.

[0303] In Figure 7Among them, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by processor 701 and a memory represented by memory 703 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, so they will not be further described herein. The bus interface 705 provides an interface. The transceiver 702 may be a plurality of components, that is, including a transmitter and a receiver, and provides 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 connecting 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, etc.

[0304] The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 when performing operations.

[0305] Preferably, an embodiment of the present application further 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, it implements each process of the above-described embodiment of the beam indication method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0306] Preferably, an embodiment of the present application further provides a terminal, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, it implements each process of the above-described embodiment of the beam determination method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0307] An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-described method embodiment of the beam determination method applied to a terminal and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0308] Among them, 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, etc.

[0309] Preferably, an embodiment of the present application further provides a network-side device, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, it implements each process of the above-described embodiment of the beam indication method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0310] An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-described embodiment of the beam indication method applied to a network-side device and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0311] Wherein, 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, etc.

[0312] Another embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a network-side device program or instruction to implement each process of the above-described embodiments of the beam indication method and the beam determination method and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0313] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, a system chip, a chip system, or a system-on-chip.

[0314] It should be noted that in this document, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising 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 a reverse order according to the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0315] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases, the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0316] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A beam determination method, characterized in that, applied to a terminal, includes: receiving downlink control information DCI in a predetermined format, and obtaining first target indication information according to the DCI in the predetermined format, where the target indication information is used to indicate common beam information of a plurality of target objects, and where the target objects include at least one of the following: a target channel and a target reference signal; determining beam information of the plurality of target objects according to the common beam information; where the DCI in the predetermined format includes DCI dedicated to indicating the common beam information.

2. The method according to claim 1, characterized in that, the obtaining first target indication information according to the DCI in the predetermined format includes: the DCI in the predetermined format includes a signaling field for indicating the common beam information; obtaining the first target indication information from the signaling field.

3. The method according to claim 1, characterized in that, the receiving downlink control information DCI in a predetermined format includes: using an indication channel to receive DCI in a predetermined format; where the indication channel includes a PDCCH dedicated to the terminal.

4. The method according to claim 1, characterized in that, the method further includes: sending first feedback information for the common beam information.

5. The method according to claim 1 or 4, characterized in that, the method further includes: if the first target indication information is successfully received, transmitting the target object using the common beam information indicated by the first target indication information, or transmitting 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, transmitting the target object using the beam information currently used by the target object.

6. The method according to claim 1, characterized in that, the method further includes: receiving third indication information, where the third indication information is used to indicate third beam information and / or fourth beam information, where the third beam information is the beam information of each CORESET in a first CORESET group, and the fourth beam information is the beam information of each CORESET in a second CORESET group.

7. The method according to claim 6, characterized in that, the third indication information is received through a media access control layer MAC control element CE command.

8. The method according to any one of claims 1 to 4, 6 to 7, characterized in that, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi - co - location QCL information, and common spatial relationship information.

9. A beam indication method, characterized in that, applied to a network - side device, includes: sending downlink control information DCI in a predetermined format, where the DCI in the predetermined format is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal, where the DCI in the predetermined format includes DCI dedicated to indicating the common beam information.

10. The method according to claim 9, wherein, the DCI in the predetermined format includes a signaling field for indicating the common beam information.

11. The method according to claim 9, wherein, the transmission of the downlink control information DCI in the predetermined format includes: using an indication channel to transmit the DCI in the predetermined format; wherein, the indication channel includes a PDCCH dedicated to the terminal.

12. The method according to claim 9, wherein, the method further includes: receiving first feedback information for the common beam information.

13. The method according to claim 12, wherein, after receiving the first feedback information for the common beam information, the method further includes: if the first feedback information is an acknowledgement message, using the common beam information to transmit the target object to the target terminal; if the first feedback information is a non-acknowledgement message, using the beam information currently used by the target object to transmit the target object to the target terminal.

14. The method according to claim 9, wherein, the method further includes: transmitting 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.

15. The method according to claim 14, wherein, the third indication information is sent by a media access control layer MAC control element CE command.

16. The method according to any one of claims 9-15, wherein, the common beam information includes any one of the following: common transmission configuration indication TCI state information, common quasi-co-location QCL information, and common spatial relationship information.

17. A beam determination device, wherein, it includes a receiving module, configured to receive downlink control information DCI in a predetermined format, and obtain first target indication information according to the DCI in the predetermined format, the target indication information being used to indicate the common beam information of a plurality of target objects, wherein the target object includes at least one of the following: a target channel and a target reference signal; a determination module, configured to determine the beam information of the plurality of target objects according to the common beam information; wherein, the DCI in the predetermined format includes a DCI dedicated to indicating the common beam information.

18. The determination device according to claim 17, wherein, the receiving module is specifically configured to use an indication channel to receive the DCI in the predetermined format; wherein, the indication channel includes a PDCCH dedicated to the terminal.

19. The determination device according to claim 17, wherein, it further includes: a sending module, configured to send first feedback information for the common beam information.

20. A beam indication device, wherein, it includes: A transmission module, configured to transmit downlink control information (DCI) in a predetermined format, where the DCI in the predetermined format is used to indicate common beam information of a plurality of target objects, and the target objects include at least one of the following: a target channel and a target reference signal, and the DCI in the predetermined format includes DCI dedicated to indicating the common beam information.

21. The beam indication device according to claim 20, wherein, the transmission module is specifically configured to use an indication channel to transmit DCI in a predetermined format; wherein the indication channel includes a PDCCH dedicated to a terminal.

22. A terminal, wherein, it includes: a memory, a processor, and a program or instruction stored on the memory and executable on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 8 are implemented.

23. A network-side device, wherein, it includes: a memory, a processor, and a program or instruction stored on the memory and executable on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 9 to 16 are implemented.

24. A readable storage medium, wherein, a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented; or the steps of the method according to any one of claims 9 to 16 are implemented.

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