Beam indication method, device, terminal and network side equipment

Abstract

The present invention discloses a beam indication method, apparatus, terminal and network side equipment, wherein the method, when applied to the terminal side, comprises: the first terminal receives a first message, the first message includes beam related information for indicating N beam directions, and N is an integer greater than or equal to 1; the first terminal transmits at least two target channels and / or target reference signals according to the beam related information. The above method provided by the embodiment of the present invention can reduce the complexity of beam indication and the overhead of indication signaling, and can support dynamic beam indication, thereby increasing the flexibility of uplink and downlink beam control.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a beam indication method, device, terminal and network side equipment. Background Art

[0002] In the New Radio (NR) system, the downlink channels include the Physical Downlink Shared Channel (PDSCH) and the Physical Downlink Control Channel (PDCCH); the uplink channels include the Physical Uplink Shared Channel (PUSCH) and the Physical Uplink Control Channel (PUCCH).

[0003] For high-frequency transmission (FR2 band in NR), due to the limited transmission range, the uplink and downlink channels are usually transmitted after beamforming to enhance coverage. The direction of the beamforming beam can be determined by beam scanning of the uplink and downlink reference signals, such as using the Channel State Information Reference Signal (CSI-RS) or Sounding Reference Signal (SRS) in different directions for beam scanning, and selecting the direction of the reference signal with the best beam quality for uplink or downlink transmission.

[0004] After determining the beam directions of different channels, it is necessary to use signaling to indicate the beam during channel transmission, that is, beam indication. For the PUCCH channel, the base station semi-statically configures multiple beam directions to the terminal through the high-level signaling SpatialRelationInfo, and indicates the activation of one of them through the medium access control layer control element (Medium Access Control-Control Element, MAC-CE). For PUSCH, the uplink beam selected by the base station is indirectly indicated by the SpatialRelationInfo of the SRS resource indicated by the SRS Resource Indicator (SRS Resource Indicator, SRI) field in the dynamic signaling downlink control information (Downlink Control Information, DCI). For the PDCCH channel, the base station configures multiple transmission configuration indication states (Transmission Configuration Indicator state, TCI state) for each control resource set (Control Resource Set, CORESET) through high-level signaling, and indicates the activation of one of them through MAC-CE. For the PDSCH channel, the base station indicates a TCI state through the TCI field in the DCI signaling, indicating the beam direction of the channel.

[0005] In the prior art solutions, different channels use different beam indication signaling, and each channel performs beam indication independently. In this way, different channels may use different beams for transmission. An important scenario in practical applications is that multiple channels use the same beam direction. For example, the PDCCH used for resource scheduling and the PDSCH for transmitting user data use the same beam direction for transmission; the uplink control channel PUCCH and the uplink data channel PUSCH also use the same beam direction. In addition, when beam reciprocity exists, the uplink channel and the downlink channel may also use the same beam direction. At this point, the current independent beam indication method increases the complexity of the system and the signaling indication overhead. Summary of the invention

[0006] At least one embodiment of the present invention provides a beam indication method, apparatus, terminal and network-side equipment, which can reduce the complexity of beam indication and the overhead of indication signaling, and can support dynamic beam indication, thereby increasing the flexibility of uplink and downlink beam control.

[0007] In a first aspect, the present invention provides a beam indication method, applied to a first terminal, including:

[0008] The first terminal receives a first message, where the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1;

[0009] The first terminal transmits at least two target channels and / or target reference signals according to the beam-related information.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the N beam directions are indicated by one or more of the transmission configuration indication TCI status, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, an uplink reference signal index, a downlink reference signal index, a synchronization signal index, an uplink channel, and a downlink channel.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0012] In combination with the first aspect, in some implementations of the first aspect, the N beam directions are:

[0013] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0014] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0015] In combination with the first aspect, in some implementations of the first aspect, N is equal to 1;

[0016] The step of transmitting, by the first terminal, at least two target channels and / or target reference signals according to the beam-related information includes:

[0017] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0018] Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination;

[0019] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from a network.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, N is greater than 1;

[0021] The step of transmitting, by the first terminal, at least two target channels and / or target reference signals according to the beam-related information includes:

[0022] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network;

[0023] When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

[0024] In combination with the first aspect, in some implementations of the first aspect, the channel signal combination is predefined, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station.

[0025] In combination with the first aspect, in some implementations of the first aspect, the channel signal combination includes at least one of the following combinations:

[0026] Uplink channel and / or uplink reference signal;

[0027] Downlink channel and / or downlink reference signal;

[0028] Uplink channel and downlink channel;

[0029] Uplink channel and downlink reference signal;

[0030] Uplink reference signal and downlink channel;

[0031] Uplink reference signal and downlink reference signal.

[0032] In combination with the first aspect, in some implementations of the first aspect,

[0033] The validity period of the beam-related information in the first message is determined by at least one of the following methods:

[0034] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0035] Determining the effective time according to a predefined time range;

[0036] Determine the validity period according to the configuration of the network side;

[0037] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0038] In combination with the first aspect, in some implementations of the first aspect,

[0039] The predefined time range includes at least one of the following methods:

[0040] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0041] The predefined time range is the duration length of the effective time predefined by the system.

[0042] In combination with the first aspect, in some implementations of the first aspect, the method further includes: obtaining a method for determining the effective time according to a configuration on the network side.

[0043] In combination with the first aspect, in some implementations of the first aspect, the method for determining the effective time may be indicated by the first message.

[0044] In combination with the first aspect, in some implementations of the first aspect, the method further includes at least one of the following:

[0045] The first terminal receives a second message, where the second message includes combination indication information for indicating the channel signal combination;

[0046] The first terminal receives a third message, where the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or further includes time indication information for indicating a valid time of using the beam in the beam direction in the beam related information;

[0047] The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station;

[0048] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0049] In combination with the first aspect, in certain implementations of the first aspect, the at least two channels and / or reference signals are at least two of the physical downlink control channel PDCCH, the physical downlink shared channel PDSCH, the physical uplink control channel PUCCH, the physical uplink shared channel PUSCH, the channel state information reference signal CSI-RS and the sounding reference signal SRS.

[0050] In combination with the first aspect, in some implementations of the first aspect, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling;

[0051] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0052] In combination with the first aspect, in some implementations of the first aspect, when the first message is indicated by one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling, the method further includes:

[0053] The first terminal feeds back reception confirmation information of the first message on the first uplink resource, or uses the first uplink resource to indicate reception confirmation information of the first message;

[0054] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0055] In combination with the first aspect, in some implementations of the first aspect, the first message, the second message, and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling;

[0056] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0057] In a second aspect, the present invention provides a beam indication method, applied to a network side device, including:

[0058] Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1;

[0059] A first message is sent to a first terminal.

[0060] In combination with the second aspect, in certain implementations of the second aspect, the N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, an uplink reference signal index, a downlink reference signal index, a synchronization signal index, an uplink channel, and a downlink channel.

[0061] In combination with the second aspect, in certain implementations of the second aspect, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0062] In combination with the second aspect, in some implementations of the second aspect, the N beam directions are:

[0063] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0064] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0065] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes:

[0066] The network side device transmits at least two target channels and / or target reference signals according to the beam-related information.

[0067] In conjunction with the second aspect, in some implementations of the second aspect, N is equal to 1;

[0068] The step of transmitting, by the network side device, at least two target channels and / or target reference signals according to the beam related information includes:

[0069] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0070] Determining the at least two target channels and / or target reference signals according to preconfigured information or combined indication information for indicating a channel signal combination;

[0071] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to the first terminal.

[0072] In conjunction with the second aspect, in some implementations of the second aspect, N is greater than 1;

[0073] The step of transmitting, by the network side device, at least two target channels and / or target reference signals according to the beam related information includes:

[0074] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal;

[0075] When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminal; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

[0076] In combination with the second aspect, in some implementations of the second aspect, the channel signal combination is predefined, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station.

[0077] In conjunction with the second aspect, in some implementations of the second aspect, the channel signal combination includes at least one of the following combinations:

[0078] Uplink channel and / or uplink reference signal;

[0079] Downlink channel and / or downlink reference signal;

[0080] Uplink channel and downlink channel;

[0081] Uplink channel and downlink reference signal;

[0082] Uplink reference signal and downlink channel;

[0083] Uplink reference signal and downlink reference signal.

[0084] In combination with the second aspect, in some implementations of the second aspect, the first message also includes combination indication information for indicating the channel signal combination.

[0085] In conjunction with the second aspect, in some implementations of the second aspect,

[0086] The validity period of the beam-related information in the first message is determined by at least one of the following methods:

[0087] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0088] Determining the effective time according to a predefined time range;

[0089] Determining the effective time according to the configuration of the base station;

[0090] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0091] In conjunction with the second aspect, in some implementations of the second aspect,

[0092] The predefined time range includes at least one of the following methods:

[0093] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0094] The predefined time range is the duration length of the effective time predefined by the system.

[0095] In combination with the second aspect, in some implementations of the second aspect, the method further includes: configuring a method for determining the effective time for the first terminal.

[0096] In conjunction with the second aspect, in some implementations of the second aspect, the method for determining the valid time configured for the first terminal includes:

[0097] The first message indicates a method for determining the validity period.

[0098] In conjunction with the second aspect, in some implementations of the second aspect,

[0099] The first message further includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or further includes beam validity time indication information for indicating the validity time of the beam using the beam direction in the beam related information;

[0100] and / or,

[0101] The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station;

[0102] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0103] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes at least one of the following:

[0104] Sending a second message to the first terminal, where the second message includes combination indication information for indicating the channel signal combination;

[0105] Sending a third message to the first terminal, the third message including beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or also including time indication information for indicating the effective time of the beam using the beam direction in the beam related information;

[0106] The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station;

[0107] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0108] In combination with the second aspect, in certain implementations of the second aspect, the at least two channels and / or reference signals are at least two of the physical downlink control channel PDCCH, the physical downlink shared channel PDSCH, the physical uplink control channel PUCCH, the physical uplink shared channel PUSCH, the channel state information reference signal CSI-RS and the sounding reference signal SRS.

[0109] In combination with the second aspect, in some implementations of the second aspect, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling;

[0110] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0111] In combination with the second aspect, in some implementations of the second aspect, when the first message is indicated by one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling, the method further includes:

[0112] Determining whether the first terminal has received the first message according to reception confirmation information of the first message fed back by the first terminal on the first uplink resource, or according to reception confirmation information of the first message indicated by the first terminal using the first uplink resource;

[0113] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0114] In combination with the second aspect, in some implementations of the second aspect, the first message, the second message, and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling;

[0115] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0116] In a third aspect, the present invention provides a beam indication device, applied to a first terminal, including:

[0117] A receiving module, configured to receive a first message, wherein the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1;

[0118] A transmission control module is used to transmit at least two target channels and / or target reference signals according to the beam-related information.

[0119] In a fourth aspect, the present invention provides a first terminal, comprising: a memory, a processor, a transceiver, and a program stored in the memory and executable on the processor; when the processor executes the program, the following steps are implemented:

[0120] receiving a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is an integer greater than or equal to 1;

[0121] At least two target channels and / or target reference signals are transmitted according to the beam-related information.

[0122] In a fifth aspect, the present invention provides another beam indication device, applied to a network side device, including:

[0123] A message generating module, configured to generate a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is greater than or equal to 1;

[0124] The message sending module is used to send a first message to the first terminal.

[0125] In a sixth aspect, the present invention provides a network side device, comprising: a memory, a processor, a transceiver, and a program stored in the memory and executable on the processor; when the processor executes the program, the following steps are implemented:

[0126] Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1;

[0127] A first message is sent to a first terminal.

[0128] In a seventh aspect, the present invention provides a computer storage medium, comprising instructions, which, when executed on a computer, enable the computer to execute the method described above.

[0129] The beneficial effects of the embodiments of the present invention are:

[0130] The embodiment of the present invention can indicate the shaped beams of multiple channels / reference signals through one signaling message, which can reduce the complexity of beam indication and the overhead of indication signaling, and can support dynamic beam indication, thereby increasing the flexibility of uplink and downlink beam control. BRIEF DESCRIPTION OF THE DRAWINGS

[0131] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0132] Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present invention;

[0133] Figure 2 A flow chart of a beam indication method provided by an embodiment of the present invention;

[0134] Figure 3 Another flow chart of a beam indication method provided by an embodiment of the present invention;

[0135] Figure 4 A structural diagram of a beam pointing device provided by an embodiment of the present invention;

[0136] Figure 5A structural diagram of a terminal according to an embodiment of the present invention;

[0137] Figure 6 is another structural diagram of a beam pointing device according to an embodiment of the present invention;

[0138] Figure 7 A structural diagram of a network side device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0139] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0140] The terms "first", "second", etc. in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. "And / or" in the specification and claims represents at least one of the connected objects.

[0141] The technology described herein is not limited to Long Time Evolution (LTE), LTE-Advanced (LTE-A) systems and 5G NR systems, and can also be used for various 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 new communication systems that will appear in the future. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system can implement radio technologies such as Global System for Mobile Communication (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE (such as LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for example purposes and uses NR terminology in much of the following description, although the techniques may also be applicable to applications other than NR system applications.

[0142] The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the spirit and scope of the present disclosure. Various examples may appropriately omit, replace, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0143] See also Figure 1 , Figure 1 A block diagram of a wireless communication system applicable to an embodiment of the present invention is shown. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a user terminal or user equipment (UE). The terminal 11 may be a terminal side device such as a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 can be a base station and / or a core network element, wherein the above-mentioned base station can be a base station of 5G and later versions (for example: gNB, 5GNR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point, or other access point, etc.), wherein the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present invention, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0144] The base station can communicate with the terminal 11 under the control of a base station controller, and in various examples, the base station controller can be part of the core network or certain base stations. Some base stations can communicate control information or user data with the core network via a backhaul. In some examples, some of these base stations can communicate with each other directly or indirectly via a backhaul link, which can be a wired or wireless communication link. The wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on these multiple carriers at the same time. For example, each communication link can be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0145] The base station can communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of ​​the access point can be divided into sectors that constitute only a portion of the coverage area. The wireless communication system may include different types of base stations (e.g., macro base stations, micro base stations, or micro-micro base stations). The base station may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base station may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of the same or different types of base stations, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

[0146] The communication link in the wireless communication system may include an uplink for carrying an uplink (UL) transmission (e.g., from the terminal 11 to the network device 12), or a downlink for carrying a downlink (DL) transmission (e.g., from the network device 12 to the terminal 11). UL transmission may also be referred to as reverse link transmission, and DL transmission may also be referred to as forward link transmission. Downlink transmission may be performed using a licensed frequency band, an unlicensed frequency band, or both. Similarly, uplink transmission may be performed using a licensed frequency band, an unlicensed frequency band, or both.

[0147] The embodiment of the present invention provides a beam indication method, such as Figure 2 As shown, when the method is applied to the first terminal side, it includes:

[0148] Step 21: The first terminal receives a first message, where the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1.

[0149] Here, the embodiment of the present invention carries beam-related information in the first message, and the beam-related information is used to indicate N (greater than or equal to 1) beam directions. Specifically, the beam direction in the beam-related information can be indicated by one or more of the transmission configuration indication TCI state, Quasi co-location (QCL) parameters, spatial relationship information (SpatialRelationInfo), uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel. Among them, when the uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel or downlink channel is used to indicate the beam direction, the indicated beam direction is: the beam direction most recently used by the uplink reference signal, downlink reference signal, synchronization signal, uplink channel or downlink channel.

[0150] The embodiment of the present invention may predefine or preconfigure a plurality of channel signal combinations. Specifically, the channel signal combination may be predefined by the network and the terminal side, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station. Each of the channel signal combinations includes at least two channels and / or reference signals, where the channels may include one or more of PDSCH, PDCCH, PUSCH and PUCCH, and the reference signals may include one or more of CSI-RS and SRS. Specifically, the channel signal combination may include at least one of the following combinations:

[0151] 1) Uplink channel and / or uplink reference signal;

[0152] 2) Downlink channel and / or downlink reference signal;

[0153] 3) Uplink channel and downlink channel;

[0154] 4) Uplink channel and downlink reference signal;

[0155] 5) Uplink reference signal and downlink channel;

[0156] 6) Uplink reference signal and downlink reference signal.

[0157] The beam-related information in the first message may be the beam direction of each of the N channel signal combinations, so that the first message may indicate the beam direction of at least two channels and / or reference signals. Here, the at least two channels and / or reference signals are at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS. For example, the at least two channels and / or reference signals may be PDCCH and PDSCH; or, the at least two channels and / or reference signals may be PDCCH, PDSCH and CSI-RS; or, the at least two channels and / or reference signals may be PUCCH and PUSCH; or, the at least two channels and / or reference signals may be PUCCH, PDSCH and CSI-RS; or, the at least two channels and / or reference signals may be PUCCH and PUSCH; or, the at least two channels and / or reference signals may be PUCCH, PUSCH and SRS; or, the at least two channels and / or reference signals may be PDCCH and PUCCH, and so on, and examples are not given one by one here.

[0158] The beam-related information in the first message may also be beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N. Here, the beam direction of each terminal indicated in the beam-related information may be at least one, and a total of N beam directions are indicated for the M terminals.

[0159] In an embodiment of the present invention, the first message may be indicated by one of radio resource control (RRC) signaling, media access control layer control unit (MAC-CE) signaling, user equipment group common downlink control information (UE group common DCI), DCI format 0-1, DCI format 0-1, DCI format 1-0, and DCI format 1-1. Wherein, when the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0, or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0, or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0160] Step 22: The first terminal transmits at least two target channels and / or target reference signals according to the beam-related information.

[0161] Here, in the embodiment of the present invention, at step 22, the beam direction indicated by the beam-related information is used to transmit at least two target channels and / or target reference signals. Similarly, the at least two target channels and / or target reference signals are at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.

[0162] It should be noted that the transmission described in the embodiments of the present invention includes sending and / or receiving. For example, when the beam indicated by the beam-related information is a transmitting beam, when sending the target channel and / or target reference signal, the transmitting beam can be used for sending; when receiving the target channel and / or target reference signal, the target channel and / or target reference signal can be received in the direction of the transmitting beam. Similarly, when the beam indicated by the beam-related information is a receiving beam, when sending the target channel and / or target reference signal, the receiving beam can be used for sending; when receiving the target channel and / or target reference signal, the receiving beam can be used for receiving.

[0163] Through the above steps, the embodiment of the present invention can use the beam direction indicated by a first message to transmit at least two target channels and / or target reference signals, thereby indicating the shaped beams of multiple channels / reference signals through a signaling message, which can reduce the complexity of beam indication and the overhead of indication signaling. In addition, the embodiment of the present invention can also send the above-mentioned first message when the beam needs to be changed, so as to realize dynamic beam indication and increase the flexibility of uplink and downlink beam control.

[0164] In certain embodiments of the present invention, when the first message is indicated by one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling, the first terminal may also feedback reception confirmation information of the first message on the first uplink resource, or use the first uplink resource to indicate the reception confirmation information of the first message. Here, the first uplink resource is determined based on a predefined correspondence between the first message and the first uplink resource, or is determined based on an uplink resource allocation indication field included in the first message. The reception confirmation information is used to indicate whether the first terminal has received the first message.

[0165] Feedback the reception confirmation information of the first message on the first uplink resource, specifically, ACK / NACK information can be sent on the first uplink resource, ACK / NACK is used to indicate the receipt / non-receipt of the first message. Use the first uplink resource to indicate the reception confirmation information of the first message, specifically, the first uplink resource can be sent to indicate that the first terminal has received the first message.

[0166] In certain embodiments of the present invention, N is equal to 1. At this time, in step 22, at least two target channels and / or target reference signals are transmitted according to the beam-related information, which may specifically include: determining the only beam direction indicated by the beam-related information as the first beam direction; determining the at least two target channels and / or target reference signals according to pre-configuration information or according to combined indication information sent by the network for indicating the channel signal combination; based on the first beam direction, transmitting the at least two target channels and / or target reference signals to and from the network. The pre-configuration information here may be pre-defined by the network and the terminal side, or pre-configured by the network to the terminal. The combined indication information may be sent via the first message, and at this time the first message also includes combined indication information for indicating the channel signal combination. Of course, the embodiment of the present invention may also send the combined indication information via other messages.

[0167] In some embodiments of the present invention, the N is greater than 1. At this time, in step 22, transmitting at least two target channels and / or target reference signals according to the beam-related information may specifically include:

[0168] a) When the N beam directions are the beam directions of each combination in the N channel signal combinations, determine the first beam direction of each channel signal combination according to the first correspondence between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit the channel and / or signal in the corresponding channel signal combination with the network. Here, the first correspondence may be predefined by the network and the terminal side, or pre-configured by the network to the terminal.

[0169] b) When the N beam directions are the beam directions of M terminals, determine the first beam direction of the first terminal according to the second correspondence between the N beam directions and the terminal; determine the at least two target channels and / or target reference signals according to the preconfiguration information or the combined indication information sent by the network for indicating the channel signal combination; based on the first beam direction, transmit the at least two target channels and / or target reference signals to the network. Here, the second correspondence may be predefined by the network and the terminal side, or pre-configured by the network to the terminal.

[0170] In addition, the first beam direction may be at least one beam direction. When the first beam directions are greater than or equal to 2, the beam directions corresponding to the respective channel signal combinations in the first beam direction may be determined according to a third corresponding relationship between the beam directions and the channel signal combinations, so as to transmit related channels and / or signals using the beam directions corresponding to the respective channel signal combinations.

[0171] In order to increase the flexibility of beam control, an embodiment of the present invention may also include in the first message beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or include beam validity time indication information for indicating the validity time of the beam using the beam direction in the beam-related information.

[0172] For example, when the first message includes the beam validity indication information, in an embodiment of the present invention, the channel signal combination uses the beam direction in the beam-related information only when the beam validity indication information is valid. At this time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information in the above-mentioned step 22 will be executed; when the beam validity indication information is invalid, the channel signal combination does not use the beam direction in the beam-related information. At this time, the independent beam indication scheme of the prior art can be used, which will not be repeated in this article.

[0173] For another example, when the first message includes the beam effective time indication information, in an embodiment of the present invention, the channel signal combination uses the beam direction in the beam-related information only when the current time belongs to the effective time. At this time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information in the above-mentioned step 22 will be executed; when the current time does not belong to the effective time, the channel signal combination does not use the beam direction in the beam-related information. At this time, the independent beam indication scheme of the prior art can be used, which will not be repeated in this article.

[0174] Optionally, the effective time of the beam direction in the beam-related information used by the channel signal combination in an embodiment of the present invention may also be predefined (such as pre-agreed by the terminal and the network side) or configured by the base station.

[0175] As another implementation, the embodiment of the present invention may also send the combination indication information and / or beam validity indication information through other messages other than the first message. For example, the network side device may also send the combination indication information through a second message, and / or send the beam validity indication information through a third message. At this time, the first terminal receives the second message, the second message includes the combination indication information for indicating the channel signal combination, so that the combination indication information can be obtained; and / or, receives the third message, the third message includes the beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, so that the beam validity indication information can be obtained. For another example, the network side device may also send the combination indication information and the beam validity indication information through a fourth message at the same time, and so on. At this time, the terminal receives the fourth message and can obtain the combination indication information and the beam validity indication information. In addition, as another implementation, the third message may include the beam validity indication information or include time indication information for indicating the effective time of the beam using the beam direction in the beam related information. Similarly, the terminal executes the step of transmitting at least two target channels and / or target reference signals according to the beam-related information only when the beam validity indication information is valid or the current time belongs to the valid time.

[0176] Similarly, the first message, the second message, the third message and the fourth message may be indicated by one of RRC signaling, MAC-CE signaling, UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0 and DCI format 1-1. Wherein, when the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0177] According to at least one embodiment of the present invention, the valid time of the beam-related information in the first message may be determined in at least one of the following ways:

[0178] 1) Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates the time range of the valid time, or the valid time indicates whether the beam-related information is effective.

[0179] 2) Determine the effective time according to a predefined time range.

[0180] Here, the predefined time range may include at least one of the following methods:

[0181] A) the predefined time range is one transmission of the at least two target channels and / or target reference signals, and in this case, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0182] B) The predefined time range is the duration of the validity time predefined by the system. For example, the predefined time range may be pre-stored in the terminal, for example, written into the memory of the terminal when the terminal leaves the factory.

[0183] 3) Determine the validity period according to the configuration on the network side.

[0184] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the above-mentioned step 22 is executed to transmit at least two target channels and / or target reference signals according to the beam-related information.

[0185] Furthermore, the terminal may also obtain a method for determining the effective time according to a configuration of a network side (such as a base station), for example, by selecting one of the above three methods. As an implementation method, the method for determining the effective time may be indicated by the first message, that is, the method for determining the effective time is configured in the first message.

[0186] The above describes at least one implementation of the beam indication method of the present invention from the terminal side. Figure 3 The beam indication method provided in the embodiment of the present invention, when applied to a network side device, such as a base station, includes:

[0187] Step 31: Generate a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is greater than or equal to 1.

[0188] Here, the beam direction in the beam-related information may be indicated by one or more of the transmission configuration indication TCI state, Quasi co-location (QCL) parameter, spatial relationship information (SpatialRelationInfo), uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel. Wherein, when the uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel or downlink channel is used to indicate the beam direction, the indicated beam direction is: the beam direction most recently used by the uplink reference signal, downlink reference signal, synchronization signal, uplink channel or downlink channel.

[0189] The embodiment of the present invention may predefine or preconfigure a plurality of channel signal combinations. Specifically, the channel signal combination may be predefined by the network and the terminal side, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station. Each of the channel signal combinations includes at least two channels and / or reference signals, where the channels may include one or more of PDSCH, PDCCH, PUSCH and PUCCH, and the reference signals may include one or more of CSI-RS and SRS. Specifically, the channel signal combination may include at least one of the following combinations:

[0190] 1) Uplink channel and / or uplink reference signal;

[0191] 2) Downlink channel and / or downlink reference signal;

[0192] 3) Uplink channel and downlink channel;

[0193] 4) Uplink channel and downlink reference signal;

[0194] 5) Uplink reference signal and downlink channel;

[0195] 6) Uplink reference signal and downlink reference signal.

[0196] The beam-related information in the first message may be the beam direction of each of the N channel signal combinations, so that the first message may indicate the beam direction of at least two channels and / or reference signals. Here, the at least two channels and / or reference signals are at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS. For example, the at least two channels and / or reference signals may be PDCCH and PDSCH; or, the at least two channels and / or reference signals may be PDCCH, PDSCH and CSI-RS; or, the at least two channels and / or reference signals may be PUCCH and PUSCH; or, the at least two channels and / or reference signals may be PUCCH, PDSCH and CSI-RS; or, the at least two channels and / or reference signals may be PUCCH and PUSCH; or, the at least two channels and / or reference signals may be PUCCH, PUSCH and SRS; or, the at least two channels and / or reference signals may be PDCCH and PUCCH, and so on, and examples are not given one by one here.

[0197] The beam-related information in the first message may also be beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N. Here, the beam direction of each terminal indicated in the beam-related information may be at least one, and a total of N beam directions are indicated for the M terminals.

[0198] Step 32: Send a first message to the first terminal.

[0199] Here, the first message can be indicated by one of radio resource control (RRC) signaling, media access control layer control unit (MAC-CE) signaling, user equipment group common downlink control information (UE group commonDCI), DCI format 0-1, DCI format 0-1, DCI format 1-0, and DCI format 1-1. Wherein, when the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCIformat 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0200] Through the above steps, the embodiment of the present invention can send a first message from the network side to the terminal, thereby indicating the shaped beams of multiple channels / reference signals through one signaling message, which can reduce the complexity of beam indication and the overhead of indication signaling. In addition, the embodiment of the present invention can also send the above-mentioned first message when the beam needs to be changed, so as to realize dynamic beam indication and increase the flexibility of uplink and downlink beam control.

[0201] After the above step 32, the network side device may also transmit at least two target channels and / or target reference signals according to the beam related information. Similarly, the at least two target channels and / or target reference signals are at least two of PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS and SRS.

[0202] It should be noted that the transmission described in the embodiments of the present invention includes sending and / or receiving. For example, when the beam indicated by the beam-related information is a transmitting beam, when sending the target channel and / or target reference signal, the transmitting beam can be used for sending; when receiving the target channel and / or target reference signal, the target channel and / or target reference signal can be received in the direction of the transmitting beam. Similarly, when the beam indicated by the beam-related information is a receiving beam, when sending the target channel and / or target reference signal, the receiving beam can be used for sending; when receiving the target channel and / or target reference signal, the receiving beam can be used for receiving.

[0203] In certain embodiments of the present invention, when the first message is indicated through one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling, the network side device can also determine whether the first terminal has received the first message based on the reception confirmation information of the first message fed back by the first terminal on the first uplink resource, or based on the reception confirmation information of the first message indicated by the first terminal using the first uplink resource; wherein the first uplink resource is determined based on a predefined correspondence between the first message and the first uplink resource, or is determined based on the uplink resource allocation indication field included in the first message. When the network side device determines that the first terminal has not received the first message, it resends the first message to the first terminal.

[0204] In certain embodiments of the present invention, N is greater than 1. At this time, the network side device transmits at least two target channels and / or target reference signals according to the beam-related information, which may specifically include: determining the only beam direction indicated by the beam-related information as the first beam direction; determining the at least two target channels and / or target reference signals according to pre-configuration information or combined indication information for indicating a channel signal combination; based on the first beam direction, transmitting the at least two target channels and / or target reference signals to the first terminal. The pre-configuration information here may be pre-defined by the network and terminal side, or pre-configured by the network to the terminal. The combined indication information may be sent via the first message, and at this time the first message also includes combined indication information for indicating the channel signal combination. Of course, the embodiment of the present invention may also send the combined indication information via other messages.

[0205] In some embodiments of the present invention, the N is greater than 1. At this time, the network side device transmits at least two target channels and / or target reference signals according to the beam related information, which may specifically include:

[0206] a) when the N beam directions are the beam directions of each combination in the N channel signal combinations, determine the first beam direction of each channel signal combination according to the first correspondence between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit the channel and / or signal in the corresponding channel signal combination with the first terminal. Here, the first correspondence may be predefined by the network and the terminal side, or pre-configured by the network to the terminal.

[0207] b) When the N beam directions are the beam directions of M terminals, determine the first beam direction of each terminal according to the second correspondence between the N beam directions and the terminal; determine the at least two target channels and / or target reference signals according to the pre-configuration information or the combined indication information sent by the network for indicating the channel signal combination; based on the first beam direction, transmit the at least two target channels and / or target reference signals to each terminal. Here, the second correspondence may be predefined by the network and the terminal side, or pre-configured by the network to the terminal.

[0208] In addition, the first beam direction may be at least one beam direction. When the first beam directions are greater than or equal to 2, the beam directions corresponding to the respective channel signal combinations in the first beam direction may be determined according to a third corresponding relationship between the beam directions and the channel signal combinations, so as to transmit related channels and / or signals using the beam directions corresponding to the respective channel signal combinations.

[0209] In order to increase the flexibility of beam control, an embodiment of the present invention may also include in the first message beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or also include beam validity time indication information for indicating the validity time of the beam using the beam direction in the beam-related information.

[0210] For example, when the beam validity indication information is valid, the channel signal combination uses the beam direction in the beam-related information. At this time, the network side device will execute the step of transmitting at least two target channels and / or target reference signals according to the beam-related information; when the beam validity indication information is invalid, the channel signal combination does not use the beam direction in the beam-related information. At this time, the independent beam indication scheme of the prior art can be used, which will not be repeated in this article.

[0211] For another example, when the first message includes the beam effective time indication information, in an embodiment of the present invention, the channel signal combination uses the beam direction in the beam-related information only when the current time belongs to the effective time. At this time, the network side performs the step of transmitting at least two target channels and / or target reference signals according to the beam-related information; when the current time does not belong to the effective time, the channel signal combination does not use the beam direction in the beam-related information. At this time, the independent beam indication scheme of the prior art can be used, which will not be repeated in this article.

[0212] Optionally, the effective time of the beam direction in the beam-related information used by the channel signal combination in an embodiment of the present invention may also be predefined (such as pre-agreed by the terminal and the network side) or configured by the base station.

[0213] As another implementation method, the embodiment of the present invention may also send the combined indication information and / or beam validity indication information through other messages other than the first message. For example, the network side device may also send the combined indication information through the second message, and / or send the beam validity indication information through the third message. For another example, the network side device may also send the combined indication information and the beam validity indication information at the same time through the fourth message, and so on.

[0214] In addition, as another implementation, the third message may include the beam validity indication information or include time indication information for indicating the valid time of the beam using the beam direction in the beam related information. Similarly, the terminal performs the step of transmitting at least two target channels and / or target reference signals according to the beam related information only when the beam validity indication information is valid or the current time belongs to the valid time.

[0215] Similarly, the first message, the second message, the third message and the fourth message may be indicated by one of RRC signaling, MAC-CE signaling, UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0 and DCI format 1-1. Wherein, when the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0216] According to at least one embodiment of the present invention, the network side device may determine the valid time of the beam related information in the first message in at least one of the following ways:

[0217] 1) Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates the time range of the valid time, or the valid time indicates whether the beam-related information is effective.

[0218] 2) Determine the effective time according to a predefined time range.

[0219] Here, the predefined time range may include at least one of the following methods:

[0220] A) the predefined time range is one transmission of the at least two target channels and / or target reference signals, and in this case, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0221] B) The predefined time range is the duration of the validity time predefined by the system. For example, the predefined time range may be pre-stored in the base station, for example, written into the memory of the terminal when the terminal leaves the factory.

[0222] 3) Determine the validity time according to the configuration of the network side device (base station).

[0223] Among them, the above-mentioned step of transmitting at least two target channels and / or target reference signals according to the beam-related information is performed only when the beam-related information is effective or the current time belongs to the effective time.

[0224] Furthermore, the network side device may also configure a method for determining the effective time for the first terminal. At this time, the terminal may also obtain a method for determining the effective time according to the configuration of the network side device, for example, by selecting one of the above three methods. As an implementation method, the method for determining the effective time may be indicated by the first message, that is, the network side device may configure the method for determining the effective time in the first message.

[0225] The following describes the implementation of the beam indication method of the embodiment of the present invention on the terminal and network sides. The following further provides several examples of the application of the beam indication method of the embodiment of the present invention in conjunction with the accompanying drawings. In the following examples, the beam related information field is a field used to carry beam related information; the beam valid indication information field is a field used to carry beam valid indication information; the channel signal combination indication field is a field used to carry combination indication information; the first signaling is the first message described in the embodiment of the present invention.

[0226] Example 1:

[0227] The base station determines the first signaling, the format of which is shown in Table 1. It includes a beam-related information field, which includes N=1 beam direction information; and also includes a beam validity indication information field for the channel combination. The beam here can be indicated by a TCI state or by a QCL parameter or a SpatialRelationInfo parameter. It is referred to as a beam in the following.

[0228] Beam related information field Beam validity indication information field

[0229] Table 1

[0230] The system predefines channels and / or reference signals for all uplink and downlink channels, i.e., these N=1 beam directions are used for PDCCH / PDSCH / PUCCH / PUSCH. Assume that the system configures S=128 TCI states for the terminal, represented as TCI0, TCI1,…, TCI127, and each state corresponds to a beam direction. Through the beam scanning of the base station, TCI6 is determined as the beam direction of all channels. Then, the first signaling in Table 2 (i.e., the first message in this article) is indicated to the terminal.

[0231] TCI6 ON

[0232] Table 2

[0233] After receiving the first signaling, the terminal determines that subsequent PDCCH channels, PDSCH channels, PUCCH channels and PUSCH channels are all transmitted using the beam indicated by TCI6 according to the 'ON' state of the beam validity indication information field.

[0234] If the subsequent terminal receives the first signaling shown in Table 3 (i.e., the first message in this article), according to the state of 'OFF' in the beam validity indication information field, it indicates that the beam of the channel combination is invalid. Then the PDCCH channel, PDSCH channel, PUCCH channel and PUSCH channel use the beams indicated by their respective beam indication signaling for transmission. That is, the NR system beam indication method of the prior art is adopted. Alternatively, after the OFF state, all channels use their respective default beams for transmission. The four channels thereafter no longer use the same beam for transmission.

[0235] TCI6 OFF

[0236] Table 3

[0237] The first signaling can be transmitted using the UE group common DCI. A DCI format 2-7 can be added to the current DCI for transmission. UE specific DCI can also be used for transmission. Taking DCI format 1-1 as an example, one possible way is to use the 'Transmission configuration indication' field as the beam related information field to indicate TCI6. The 'Time domain resource assignment' field is used as the beam validity indication information field, and the value of all 0 represents OFF, and all 1 represents ON. When the system predefines the values ​​of the remaining information fields of DCI format 1-1 to be all 1, it indicates that this DCI is the first signaling, otherwise it is the normal mode DCI format 1-1.

[0238] Example 2:

[0239] The base station determines the first signaling, the format of which is shown in Table 4. It includes a beam-related information field, including N=1 beam direction information, and also includes a beam validity indication information field of the channel combination. It also includes an indication field of the channel combination.

[0240] Beam validity indication information field Channel signal combination indicator field Beam related information field

[0241] Table 4

[0242] The system predefined channel and / or reference signal combinations include the following three combinations:

[0243] All uplink and downlink channels, all uplink channels, all downlink channels

[0244] The channel combination indication field uses 2 bits to indicate one of the combinations. For example, '00' is used to indicate all uplink and downlink channels; '01' is used to indicate all uplink channels; and '10' is used to indicate all downlink channels. Assume that the system configures S = 128 TCI states for the terminal, represented as TCI0, TCI1, ..., TCI127, and each state corresponds to a beam direction. Through the beam scanning of the base station, TCI6 is determined as the beam direction of the uplink channel. Then it is indicated to the terminal through the signaling of Table 5.

[0245] ON 01 TCI6

[0246] Table 5

[0247] After receiving the first signaling, the terminal determines that subsequent PUCCH channels and PUSCH channels are transmitted using the beam indicated by TCI6 according to the 'ON' state of the beam validity indication information field.

[0248] Example 3:

[0249] The base station determines the first signaling, the format of which is shown in Table 6. It includes a beam-related information field, including N=2 beam direction information; and also includes a beam validity indication information field of N=2 channel combinations.

[0250]

[0251] Table 6

[0252] The system predefined channel and / or reference signal combination includes two combinations: all uplink channels and all downlink channels, wherein all uplink channels correspond to information field-0, and all downlink channels correspond to information field-1.

[0253] Assume that the system configures S = 128 TCI states for the terminal, represented as TCI0, TCI1, ..., TCI127, and each state corresponds to a beam direction. Through the beam scanning of the base station, TCI6 is determined as the beam direction of the uplink channel, and TCI18 is determined as the beam direction of the downlink channel. Then the signaling in Table 7 is indicated to the terminal.

[0254] ON ON TCI6 TCI18

[0255] Table 7

[0256] After receiving the first signaling, the terminal determines that the subsequent PUCCH and PUSCH channels are transmitted using the beam indicated by TCI6, and the subsequent PDCCH and PDSCH channels are transmitted using the beam indicated by TCI18 according to the 'ON' state of the beam validity indication information field.

[0257] If the above two beam-related information fields are configured with the same TCI, it means that all uplink and downlink channels use the same beam for transmission.

[0258] Example 4:

[0259] The base station determines the first signaling, the format of which is shown in Table 8. It includes a beam-related information field, which includes N=3 beam direction information; and also includes a beam validity indication information field of the channel combination.

[0260] Beam validity indication information field Beam related information field-0 Beam related information field-1 Beam related information field-2

[0261] Table 8

[0262] The above N=3 beam direction information corresponds to three terminals respectively. The system pre-defines channels and / or reference signals to form all uplink and downlink channels.

[0263] Assume that the system configures 128, 64, and 128 TCI states for three terminals respectively, and each state corresponds to a beam direction. Through the beam scanning of the base station, TCI6 in the 128 TCI states is determined as the beam direction of the channel combination of terminal 0, TCI60 in the 64 TCI states is determined as the beam direction of the channel combination of terminal 1, and TCI78 in the 128 TCI states is determined as the beam direction of the channel combination of terminal 2. Then the signaling in Table 9 is indicated to the terminal.

[0264] ON TCI6 TCI60 TCI78

[0265] Table 9

[0266] The first signaling can be transmitted using the DCI of the UE group common. A DCI format 2-7 can be added to the current DCI for transmission. After each terminal receives this first signaling, it determines the corresponding beam-related information field, and then determines the transmission beam direction of all channels according to the 'ON' state of the beam validity indication information field. For example, terminal 2 determines that subsequent PDCCH / PDSCH and PUCCH / PUSCH channels are all transmitted using the beam indicated by TCI78.

[0267] Example 5:

[0268] The base station determines the first signaling, the format of which is shown in Table 10. It includes a beam-related information field, including N=1 beam direction information; and also includes a beam validity indication information field of the channel combination.

[0269] Beam related information field Beam validity indication information field

[0270] Table 10

[0271] The system predefines the channel and / or reference signal combination as all uplink and downlink channels and uplink and downlink reference signals for CSI acquisition, that is, these N=1 beam directions are used for PDCCH / PDSCH / PUCCH / PUSCH / CSI-RS for CSI acquisition / SRS for codebook or noncodebook. The system predefines that the beam direction information can be configured as an uplink channel or a downlink channel, that is, it can be configured as 'PDCCH', 'PDSCH', 'PUCCH' and 'PUSCH'. It indicates that the beam direction is the same as the most recent beam direction of the channel indicated in the beam-related information field.

[0272] The signaling in Table 11 is then indicated to the terminal.

[0273] PDCCH ON

[0274] Table 11

[0275] After receiving the first signaling, the terminal determines that the subsequent PDCCH channel, PDSCH channel, PUCCH channel, PUSCH channel, CSI-RS for CSI acquisition, SRS for codebook and SRS for noncodebook all use the beam used for the most recent PDCCH transmission according to the 'ON' status of the beam validity indication information field.

[0276] Example 6:

[0277] The base station determines the first signaling, the format of which is shown in Table 12. It includes a beam-related information field, which includes N=1 beam direction information; and also includes a channel signal combination indication field. The channel signal combination indication field uses 4 bits, and each bit corresponds to a channel. As shown in Table 12, PDCCH, PDSCH, PUCCH and PUSCH are channels corresponding to the bits in the channel signal combination indication field.

[0278] Beam related information field PDCCH PDSCH PUCCH PUSCH

[0279] Table 12

[0280] Assuming that the system determines that the channel combination using the same beam is PDCCH and PDSCH, the corresponding information fields are set to 1. Assuming that the system configures 128 TCI states for the terminal, each state corresponds to a beam direction. Through the beam scanning of the base station, TCI9 among the 128 TCI states is determined as the beam direction of the channel combination, and the signaling in Table 13 is indicated to the terminal.

[0281] TCI9 1 1 0 0

[0282] Table 13

[0283] After receiving the first signaling, the terminal determines that the subsequent PDCCH channel and PDSCH channel are transmitted using the beam corresponding to TCI9.

[0284] Furthermore, there is no beam validity indication information field in the first signaling. The signaling can be encrypted by different RNTIs to distinguish whether the beam is valid or invalid. For example, the first signaling encrypted by RNTI1 indicates that the beam is valid, and the first signaling encrypted by RNTI2 indicates that the beam is invalid. This method can also be applied to other embodiments. Or,

[0285] The system predefines the effective time of the beam as from the receipt of the first signaling to the next receipt of the first signaling. The beam corresponding to TCI9 is ​​used within this time range, and after the next receipt of the first signaling, it is replaced with the beam indicated in the first signaling. This method can also be applied to other embodiments. Or,

[0286] The system predefines the effective time of the beam to be Q=10 time slots starting from the receipt of the first signaling. The beam corresponding to TCI9 is ​​used within this time range. This method can also be applied to other embodiments. Or,

[0287] The system pre-defined beam is valid for one channel transmission. For example, TCI9 is ​​only used for one subsequent PDSCH and PDCCH channel transmission. After one channel transmission is completed, TCI9 becomes invalid.

[0288] Furthermore, whether to use a beam validity period of Q=10 time slots from the time the first signaling is received, or to use a beam validity period of one channel transmission, can be configured by the base station. For example, the first signaling also includes a beam validity period field, which uses 1 bit. When the value is '1', it indicates that the beam validity period is Q=10 time slots from the time the first signaling is received, and when the value is '0', it indicates that the beam validity period is one channel transmission. The high-level signaling can also indicate which method is used to determine the beam validity period.

[0289] The base station indicates the beam effective time through physical layer signaling or high-layer signaling. For example, the system configures the beam effective time to be {10, 20, 100, 1000} time slots (slots) through RRC signaling. The first signaling includes a valid time indication field, as shown in Table 14. The beam effective time indication information field uses 2 bits to indicate the above 10, 20, 100 and 1000 slots respectively.

[0290] Beam related information field Beam effective time indication information field

[0291] Table 14

[0292] If the indication in Table 15 is used, it means that starting from this signaling, the effective time is 10 slots. The beam corresponding to TCI6 is used.

[0293] TCI6 00

[0294] Table 15

[0295] This method can also be applied to other embodiments.

[0296] Example 7:

[0297] The base station determines the first signaling, which includes at least two information fields shown in Table 16. The beam-related information field includes N=1 beam direction information, which is used to indicate a common beam direction; the uplink channel resource allocation field indicates uplink PUCCH resource information or uplink PUSCH resource information or PRACH resource information.

[0298] Beam related information field Uplink channel resource allocation field

[0299] Table 16

[0300] After receiving the first signaling, the terminal feeds back ACK / NACK information on the PUCCH resource or the PUSCH resource to indicate whether the beam direction information is correctly received, and the base station receives the ACK / NACK information reported by the terminal on the PUCCH resource or the PUSCH resource. If ACK information is reported, it means that the terminal has correctly received the first signaling. If NACK information is reported or the feedback of the terminal is not received on the PUCCH resource or the PUSCH resource, the first signaling is not correctly received by the terminal. The base station will retransmit the first signaling.

[0301] or,

[0302] After the terminal receives the first signaling, the terminal sends a PRACH resource to inform the base station that the first signaling is received. The base station receives the PRACH resource. If the PRACH resource is received at the corresponding position, it means that the terminal has correctly received the first signaling; if the PRACH resource is not received, the first signaling is not correctly received by the terminal, and at this time, the base station can retransmit the first signaling.

[0303] Example 8:

[0304] The base station determines a first signaling, which includes at least one information field shown in Table 17. The beam-related information field includes N=1 beam direction information, which is used to indicate a common beam direction.

[0305] Beam related information field

[0306] Table 17

[0307] The system predefines the relationship between uplink resources and the first signaling. For example, the system predefines that ACK / NACK information is fed back on the uplink resource (such as PUCCH resource) closest to the time when the first signaling is sent; or the system predefines that PRACH is sent on the random access opportunity (RACHOccasion, RO) closest to the time when the first signaling is sent. It can also be predefined to feed back ACK / NACK information on the closest uplink resource after K time slot offsets from the time when the first signaling is sent. Or the system predefines that PRACH is sent on the closest random access opportunity (RACHOccasion, RO) after K time slot offsets from the time when the first signaling is sent.

[0308] After receiving the first signaling, the terminal feeds back ACK / NACK information on the PUCCH resource to indicate whether the beam direction information is correctly received. Alternatively, the terminal sends a PRACH resource to inform the base station that the first signaling is received.

[0309] The base station receives the ACK / NACK information reported by the terminal on the PUCCH resource according to the predefined relationship. If ACK information is reported, it means that the terminal has correctly received the first signaling. If NACK information is reported or no feedback from the terminal is received on the PUCCH resource, the first signaling is not correctly received by the terminal. The base station will retransmit the first signaling. Or,

[0310] The base station receives the PRACH resource. If the PRACH resource is received at the corresponding position, it means that the terminal has correctly received the first signaling. If the PRACH resource is not received, the first signaling is not correctly received by the terminal. The base station retransmits the first signaling.

[0311] The above describes various methods of the embodiments of the present invention. The following further provides devices for implementing the above methods.

[0312] Please refer to Figure 4 The embodiment of the present invention provides a beam indication device 40, which can be applied to a first terminal, such as Figure 4 As shown, the beam indication method 40 includes:

[0313] A receiving module 41 is configured to receive a first message, where the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1;

[0314] The transmission control module 42 is used to transmit at least two target channels and / or target reference signals according to the beam-related information.

[0315] Optionally, the N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

[0316] Optionally, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0317] Optionally, the N beam directions are:

[0318] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0319] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0320] Optionally, N is equal to 1; the transmission control module 42 is further used for:

[0321] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0322] Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination;

[0323] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from a network.

[0324] Optionally, the N is greater than 1; the transmission control module 42 is further used for:

[0325] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network;

[0326] When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

[0327] Optionally, the channel signal combination is predefined, or is determined by the base station and indicated to the terminal, or is determined by the terminal and fed back to the base station.

[0328] Optionally, the channel signal combination includes at least one of the following combinations:

[0329] Uplink channel and / or uplink reference signal;

[0330] Downlink channel and / or downlink reference signal;

[0331] Uplink channel and downlink channel;

[0332] Uplink channel and downlink reference signal;

[0333] Uplink reference signal and downlink channel;

[0334] Uplink reference signal and downlink reference signal.

[0335] Optionally, the first message also includes combination indication information for indicating the channel signal combination.

[0336] Optionally, the transmission control module is further used to determine the validity period of the beam-related information in the first message by at least one of the following methods:

[0337] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0338] Determining the effective time according to a predefined time range;

[0339] Determine the validity period according to the configuration of the network side;

[0340] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0341] Optionally, the predefined time range includes at least one of the following methods:

[0342] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0343] The predefined time range is the duration length of the effective time predefined by the system.

[0344] Optionally, the transmission control module may also be used to obtain a method for determining the effective time according to a configuration on the network side.

[0345] Optionally, the method for determining the effective time may be indicated by the first message.

[0346] Optionally, the first message further includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information;

[0347] Among them, only when the beam validity indication information is valid, the step of transmitting at least two target channels and / or target reference signals according to the beam related information is executed.

[0348] Optionally, the receiving module 41 is further used for:

[0349] receiving a second message, wherein the second message includes combination indication information for indicating the channel signal combination;

[0350] and / or,

[0351] A third message is received, wherein the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or also includes time indication information for indicating the effective time of the beam using the beam direction in the beam-related information.

[0352] Optionally, the effective time for the channel signal combination to use the beam direction in the beam-related information is predefined or configured by the base station;

[0353] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0354] Optionally, the at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

[0355] Optionally, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling;

[0356] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0357] Optionally, when the first message is indicated by one of user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling, the first terminal also includes:

[0358] A sending module, configured to feed back reception confirmation information of the first message on a first uplink resource, or to indicate reception confirmation information of the first message using the first uplink resource;

[0359] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0360] Optionally, the first message, the second message and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCIformat 1-1 and dedicated physical layer dynamic signaling;

[0361] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0362] It should be noted that the device in this embodiment is the same as the above Figure 2 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. The above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effects. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0363] Please refer to Figure 5 , a schematic diagram of the structure of a first terminal provided in an embodiment of the present invention, the terminal 500 includes: a processor 501, a transceiver 502, a memory 503, a user interface 504 and a bus interface.

[0364] In the embodiment of the present invention, the terminal 500 further includes: a program stored in the memory 503 and executable on the processor 501 .

[0365] When the processor 501 executes the program, the following steps are implemented:

[0366] receiving a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is an integer greater than or equal to 1;

[0367] At least two target channels and / or target reference signals are transmitted according to the beam-related information.

[0368] Optionally, the N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

[0369] Optionally, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0370] Optionally, the N beam directions are:

[0371] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0372] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0373] Optionally, N is equal to 1; when the processor executes the program, the following steps are further implemented:

[0374] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0375] Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination;

[0376] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from a network.

[0377] Optionally, N is greater than 1; when the processor executes the program, the following steps are further implemented:

[0378] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network;

[0379] When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

[0380] Optionally, the channel signal combination is predefined, or is determined by the base station and indicated to the terminal, or is determined by the terminal and fed back to the base station.

[0381] Optionally, the channel signal combination includes at least one of the following combinations:

[0382] Uplink channel and / or uplink reference signal;

[0383] Downlink channel and / or downlink reference signal;

[0384] Uplink channel and downlink channel;

[0385] Uplink channel and downlink reference signal;

[0386] Uplink reference signal and downlink channel;

[0387] Uplink reference signal and downlink reference signal.

[0388] Optionally, the first message also includes combination indication information for indicating the channel signal combination.

[0389] Optionally, when the processor executes the program, the processor further implements the following steps:

[0390] Determine the validity period of the beam-related information in the first message by at least one of the following methods:

[0391] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0392] Determining the effective time according to a predefined time range;

[0393] Determine the validity period according to the configuration of the network side;

[0394] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0395] Optionally, the predefined time range includes at least one of the following methods:

[0396] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0397] The predefined time range is the duration length of the effective time predefined by the system.

[0398] Optionally, when the processor executes the program, the processor further implements the following steps:

[0399] According to the configuration on the network side, a method for determining the validity time is obtained.

[0400] Optionally, the method for determining the effective time may be indicated by the first message.

[0401] Optionally, the first message further includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information;

[0402] Among them, only when the beam validity indication information is valid, the step of transmitting at least two target channels and / or target reference signals according to the beam related information is executed.

[0403] Optionally, when the processor executes the program, the processor further implements the following steps:

[0404] receiving a second message, wherein the second message includes combination indication information for indicating the channel signal combination;

[0405] and / or,

[0406] A third message is received, wherein the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or also includes time indication information for indicating the effective time of the beam using the beam direction in the beam-related information.

[0407] Optionally, the effective time for the channel signal combination to use the beam direction in the beam-related information is predefined or configured by the base station;

[0408] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0409] Optionally, the at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

[0410] Optionally, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling;

[0411] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0412] Optionally, when the first message is indicated by one of user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling, the processor further implements the following steps when executing the program:

[0413] Feedback reception confirmation information of the first message on the first uplink resource, or use the first uplink resource to indicate reception confirmation information of the first message;

[0414] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0415] Optionally, the first message, the second message and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCIformat 1-1 and dedicated physical layer dynamic signaling;

[0416] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0417] exist Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 501 and memory represented by memory 503. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 502 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 504 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0418] The processor 501 is responsible for managing the bus architecture and general processing, and the memory 503 can store data used by the processor 501 when performing operations.

[0419] It should be noted that the terminal in this embodiment is the same as the above Figure 2The terminal corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the terminal, and can also achieve the same technical effect. In the terminal, the transceiver 502 and the memory 503, as well as the transceiver 502 and the processor 501 can be connected through the bus interface communication, the function of the processor 501 can also be implemented by the transceiver 502, and the function of the transceiver 502 can also be implemented by the processor 501. It should be noted that the above terminal provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0420] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0421] receiving a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is an integer greater than or equal to 1;

[0422] At least two target channels and / or target reference signals are transmitted according to the beam-related information.

[0423] When the program is executed by the processor, it can implement all the implementation methods of the above-mentioned beam indication method applied to the terminal side, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0424] The embodiment of the present invention provides Figure 6 The beam pointing device shown can be applied to network side equipment. Figure 6 The beam indicating device 60 provided in the embodiment of the present invention includes:

[0425] A message generating module 61 is configured to generate a first message, wherein the first message includes beam-related information indicating N beam directions, where N is greater than or equal to 1;

[0426] The message sending module 62 is configured to send a first message to a first terminal.

[0427] Optionally, the N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

[0428] Optionally, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0429] Optionally, the N beam directions are:

[0430] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0431] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0432] Optionally, the beam indicating device further includes:

[0433] A transmission module is used to transmit at least two target channels and / or target reference signals according to the beam-related information.

[0434] Optionally, the N is equal to 1; and the transmission module is further used for:

[0435] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0436] Determining the at least two target channels and / or target reference signals according to preconfigured information or combined indication information for indicating a channel signal combination;

[0437] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to the first terminal.

[0438] Optionally, the N is greater than 1; and the transmission module is further used for:

[0439] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal;

[0440] When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminal; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

[0441] Optionally, the channel signal combination is predefined, or is determined by the base station and indicated to the terminal, or is determined by the terminal and fed back to the base station.

[0442] Optionally, the channel signal combination includes at least one of the following combinations:

[0443] Uplink channel and / or uplink reference signal;

[0444] Downlink channel and / or downlink reference signal;

[0445] Uplink channel and downlink channel;

[0446] Uplink channel and downlink reference signal;

[0447] Uplink reference signal and downlink channel;

[0448] Uplink reference signal and downlink reference signal.

[0449] Optionally, the first message also includes combination indication information for indicating the channel signal combination.

[0450] Optionally, the validity period of the beam-related information in the first message is determined by at least one of the following methods:

[0451] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0452] Determining the effective time according to a predefined time range;

[0453] Determine the validity period according to the configuration of the network side device;

[0454] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0455] Optionally, the predefined time range includes at least one of the following methods:

[0456] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0457] The predefined time range is the duration length of the effective time predefined by the system.

[0458] Optionally, the device further includes: a configuration module, configured to configure a method for determining the effective time for the first terminal.

[0459] Optionally, the configuration module is further used to indicate a method for determining the effective time through the first message.

[0460] Optionally, the first message further includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or further includes beam validity time indication information for indicating the validity time of the beam using the beam direction in the beam-related information;

[0461] and / or,

[0462] The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station;

[0463] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0464] Optionally, the message sending module 62 is further used to:

[0465] Sending a second message to the first terminal, where the second message includes combination indication information for indicating the channel signal combination;

[0466] and / or,

[0467] A third message is sent to the first terminal, wherein the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or also includes time indication information for indicating the effective time of the beam using the beam direction in the beam-related information.

[0468] Optionally, the effective time for the channel signal combination to use the beam direction in the beam-related information is predefined or configured by the base station;

[0469] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0470] Sending a second message to the first terminal, where the second message includes combination indication information for indicating the channel signal combination;

[0471] and / or,

[0472] A third message is sent to the first terminal, where the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information.

[0473] Optionally, the at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

[0474] Optionally, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling;

[0475] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0476] Optionally, when the first message is indicated by one of user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling, the beam indication device further includes:

[0477] a reception confirmation module, configured to determine whether the first terminal has received the first message according to reception confirmation information of the first message fed back by the first terminal on the first uplink resource, or according to reception confirmation information of the first message indicated by the first terminal using the first uplink resource;

[0478] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0479] Optionally, the first message, the second message and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCIformat 1-1 and dedicated physical layer dynamic signaling;

[0480] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0481] It should be noted that the device in this embodiment is the same as the above Figure 3 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. It should be noted that the above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effects, and the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0482] Please refer to Figure 7 , an embodiment of the present invention provides a schematic diagram of a structure of a network side device 700, including: a processor 701, a transceiver 702, a memory 703 and a bus interface, wherein:

[0483] In the embodiment of the present invention, the network side device 700 further includes: a program stored in the memory 703 and executable on the processor 701, and the program implements the following steps when executed by the processor 701:

[0484] Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1;

[0485] A first message is sent to a first terminal.

[0486] Optionally, the N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-site QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

[0487] Optionally, the beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

[0488] Optionally, the N beam directions are:

[0489] a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or,

[0490] The beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N.

[0491] Optionally, when the processor executes the program, the processor further implements the following steps:

[0492] At least two target channels and / or target reference signals are transmitted according to the beam-related information.

[0493] Optionally, N is equal to 1; when the processor executes the program, the following steps are further implemented:

[0494] Determine the only beam direction indicated by the beam-related information as a first beam direction;

[0495] Determining the at least two target channels and / or target reference signals according to preconfigured information or combined indication information for indicating a channel signal combination;

[0496] Based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to the first terminal.

[0497] Optionally, N is greater than 1; when the processor executes the program, the following steps are further implemented:

[0498] When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal;

[0499] When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminal; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

[0500] Optionally, the channel signal combination is predefined, or is determined by the base station and indicated to the terminal, or is determined by the terminal and fed back to the base station.

[0501] Optionally, the channel signal combination includes at least one of the following combinations:

[0502] Uplink channel and / or uplink reference signal;

[0503] Downlink channel and / or downlink reference signal;

[0504] Uplink channel and downlink channel;

[0505] Uplink channel and downlink reference signal;

[0506] Uplink reference signal and downlink channel;

[0507] Uplink reference signal and downlink reference signal.

[0508] Optionally, the first message also includes combination indication information for indicating the channel signal combination.

[0509] Optionally, when the processor executes the program, the processor further implements the following steps:

[0510] Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective;

[0511] Determining the effective time according to a predefined time range;

[0512] Determine the validity period according to the configuration of the network side device;

[0513] Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0514] Optionally, the predefined time range includes at least one of the following methods:

[0515] The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals;

[0516] The predefined time range is the duration length of the effective time predefined by the system.

[0517] Optionally, when the processor executes the program, it further implements the following steps: configuring a method for determining the effective time for the first terminal.

[0518] Optionally, when executing the program, the processor further implements the following steps: indicating, through the first message, a method for determining the effective time.

[0519] Optionally, the first message further includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam-related information, or further includes beam validity time indication information for indicating the validity time of the beam using the beam direction in the beam-related information;

[0520] and / or,

[0521] The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station;

[0522] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0523] Optionally, when executing the program, the processor further implements at least one of the following steps:

[0524] Sending a second message to the first terminal, where the second message includes combination indication information for indicating the channel signal combination;

[0525] Sending a third message to the first terminal, the third message including beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or also including time indication information for indicating the effective time of the beam using the beam direction in the beam related information;

[0526] Optionally, the effective time for the channel signal combination to use the beam direction in the beam-related information is predefined or configured by the base station;

[0527] Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

[0528] Optionally, the at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

[0529] Optionally, the first message is indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling;

[0530] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0531] Optionally, when the first message is indicated by one of user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1, and dedicated physical layer dynamic signaling, the processor further implements the following steps when executing the program:

[0532] Determining whether the first terminal has received the first message according to reception confirmation information of the first message fed back by the first terminal on the first uplink resource, or according to reception confirmation information of the first message indicated by the first terminal using the first uplink resource;

[0533] The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

[0534] Optionally, the first message, the second message and the third message are indicated through one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCIformat 1-1 and dedicated physical layer dynamic signaling;

[0535] When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

[0536] exist Figure 7 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 701 and memory represented by memory 703. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 702 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0537] The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 can store data used by the processor 701 when performing operations.

[0538] It should be noted that the terminal in this embodiment is the same as the above Figure 3The terminal corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the terminal, and can also achieve the same technical effect. In the terminal, the transceiver 702 and the memory 703, as well as the transceiver 702 and the processor 701 can be connected through the bus interface communication, the function of the processor 701 can also be implemented by the transceiver 702, and the function of the transceiver 702 can also be implemented by the processor 701. It should be noted that the above terminal provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0539] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0540] Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1;

[0541] A first message is sent to a first terminal.

[0542] When the program is executed by the processor, it can implement all the implementation methods of the beam indication method applied to the network side device mentioned above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0543] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0544] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0545] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0546] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0547] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0548] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0549] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A beam indication method, applied to a first terminal, characterized in that: include: The first terminal receives a first message, where the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1; The first terminal transmits at least two target channels and / or target reference signals according to the beam-related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the first terminal performs a step of transmitting at least two target channels and / or target reference signals according to the beam-related information, including: Determine the only beam direction indicated by the beam-related information as a first beam direction; Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination; Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to a network; When N is greater than 1, the first terminal transmits at least two target channels and / or target reference signals according to the beam-related information, including: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network; When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

2. The method according to claim 1, characterized in that The N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-location QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

3. The method according to claim 2, characterized in that The beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

4. The method according to claim 1, characterized in that The channel signal combination is predefined, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station.

5. The method according to claim 1, characterized in that The channel signal combination includes at least one of the following combinations: Uplink channel and / or uplink reference signal; Downlink channel and / or downlink reference signal; Uplink channel and downlink channel; Uplink channel and downlink reference signal; Uplink reference signal and downlink channel; Uplink reference signal and downlink reference signal.

6. The method according to claim 1, characterized in that The first message also includes combination indication information for indicating the channel signal combination.

7. The method according to any one of claims 1 to 6, characterized in that: The validity period of the beam-related information in the first message is determined by at least one of the following methods: Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective; Determining the effective time according to a predefined time range; Determine the validity period according to the configuration of the network side; Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

8. The method according to claim 7, characterized in that The predefined time range includes at least one of the following methods: The predefined time range is one transmission of the at least two target channels and / or target reference signals, and at this time, the beam-related information is only valid in one transmission of the at least two target channels and / or target reference signals; The predefined time range is the duration length of the effective time predefined by the system.

9. The method according to claim 7, characterized in that Also includes: According to the configuration on the network side, a method for determining the validity time is obtained.

10. The method according to claim 9, characterized in that The manner of determining the effective time may be indicated by the first message.

11. The method according to claim 1, characterized in that Also includes at least one of the following: The first terminal receives a second message, where the second message includes combination indication information for indicating the channel signal combination; The first terminal receives a third message, where the third message includes beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or further includes time indication information for indicating a valid time of using the beam in the beam direction in the beam related information; The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station; Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

12. The method according to claim 1, characterized in that The at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

13. The method according to claim 1, characterized in that The first message is transmitted through the radio resource control RRC signaling, the media access control layer control unit When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

14. The method according to claim 13, characterized in that When the first message is indicated by one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling, the method further includes: The first terminal feeds back reception confirmation information of the first message on the first uplink resource, or uses the first uplink resource to indicate reception confirmation information of the first message; The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

15. The method according to claim 11, characterized in that The first message, the second message and the third message are indicated by one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling; When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

16. A beam indication method, applied to a network side device, characterized in that: include: Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1; Sending a first message to a first terminal; The network side device transmits at least two target channels and / or target reference signals according to the beam related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the network side device performs a step of transmitting at least two target channels and / or target reference signals according to the beam related information, including: Determine the only beam direction indicated by the beam-related information as a first beam direction; Determining the at least two target channels and / or target reference signals according to preconfigured information or combined indication information for indicating a channel signal combination; Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to the first terminal; When N is greater than 1, the network side device performs a step of transmitting at least two target channels and / or target reference signals according to the beam related information, including: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal; When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

17. The method according to claim 16, characterized in that The N beam directions are indicated by one or more of the transmission configuration indication TCI state, quasi-co-location QCL parameters, spatial relationship information SpatialRelationInfo, uplink reference signal index, downlink reference signal index, synchronization signal index, uplink channel and downlink channel.

18. The method according to claim 17, characterized in that The beam direction indicated by the index of the uplink reference signal, the index of the downlink reference signal, the index of the synchronization signal, the uplink channel or the downlink channel is: the beam direction most recently used by the uplink reference signal, the downlink reference signal, the synchronization signal, the uplink channel or the downlink channel.

19. The method according to claim 16, characterized in that The channel signal combination is predefined, or determined by the base station and indicated to the terminal, or determined by the terminal and fed back to the base station.

20. The method of claim 16, wherein: The channel signal combination includes at least one of the following combinations: Uplink channel and / or uplink reference signal; Downlink channel and / or downlink reference signal; Uplink channel and downlink channel; Uplink channel and downlink reference signal; Uplink reference signal and downlink channel; Uplink reference signal and downlink reference signal.

21. The method of claim 16, wherein: The first message also includes combination indication information for indicating the channel signal combination.

22. The method according to any one of claims 16 to 21, characterized in that The validity period of the beam-related information in the first message is determined by at least one of the following methods: Determine the valid time according to the valid time indication information included in the first message, wherein the valid time indication information indicates a time range of the valid time, or the valid time indicates whether the beam-related information is effective; Determining the effective time according to a predefined time range; Determine the validity period according to the configuration of the network side device; Among them, only when the beam-related information is effective or the current time belongs to the effective time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

23. The method of claim 22, wherein: The predefined time range includes at least one of the following methods: The predefined time range is one of the at least two target channels and / or target reference signals. The predefined time range is the duration length of the effective time predefined by the system.

24. The method of claim 22, wherein: Also includes: A method for determining the validity period is configured for the first terminal.

25. The method of claim 24, wherein: The method for determining the valid time configured for the first terminal includes: The first message indicates a method for determining the validity period.

26. The method of claim 16, wherein: Also includes at least one of the following: Sending a second message to the first terminal, where the second message includes combination indication information for indicating the channel signal combination; Sending a third message to the first terminal, the third message including beam validity indication information for indicating whether the channel signal combination uses the beam direction in the beam related information, or also including time indication information for indicating the effective time of the beam using the beam direction in the beam related information; The effective time during which the channel signal combination uses the beam direction in the beam related information is predefined or configured by the base station; Among them, only when the beam validity indication information is valid or the current time belongs to the valid time, the step of transmitting at least two target channels and / or target reference signals according to the beam-related information is executed.

27. The method of claim 16, wherein: The at least two channels and / or reference signals are at least two of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical uplink control channel PUCCH, a physical uplink shared channel PUSCH, a channel state information reference signal CSI-RS and a sounding reference signal SRS.

28. The method of claim 16, wherein: The first message is indicated by one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling; When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

29. The method of claim 28, wherein: When the first message is indicated by one of user equipment group common downlink control information UE group common DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling, the method further includes: Determining whether the first terminal has received the first message according to reception confirmation information of the first message fed back by the first terminal on the first uplink resource, or according to reception confirmation information of the first message indicated by the first terminal using the first uplink resource; The first uplink resource is determined according to a predefined correspondence between the first message and the first uplink resource, or is determined according to an uplink resource allocation indication field included in the first message.

30. The method of claim 26, wherein: The first message, the second message and the third message are indicated by one of radio resource control RRC signaling, media access control layer control unit MAC-CE signaling, user equipment group common downlink control information UE groupcommon DCI, DCI format 0-1, DCI format 0-1, DCI format 1-0, DCI format 1-1 and dedicated physical layer dynamic signaling; When the message is indicated by DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1, the value of the preset field in the DCI format 0-1, DCI format 0-1, DCI format 1-0 or DCI format 1-1 is a preset value, and the preset value indicates that this DCI format is used to indicate the message.

31. A beam indication device, applied to a first terminal, characterized in that: include: A receiving module, configured to receive a first message, wherein the first message includes beam-related information indicating N beam directions, where N is an integer greater than or equal to 1; A transmission control module, configured to transmit at least two target channels and / or target reference signals according to the beam-related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the transmission control module is used to: Determine the only beam direction indicated by the beam-related information as a first beam direction; Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination; Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to a network; When N is greater than 1, the transmission control module is used to: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network; When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

32. A first terminal, comprising: A memory, a processor, a transceiver, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the following steps are implemented: receiving a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is an integer greater than or equal to 1; Transmit at least two target channels and / or target reference signals according to the beam-related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the processor is configured to: Determine the only beam direction indicated by the beam-related information as a first beam direction; Determining the at least two target channels and / or target reference signals according to preconfigured information or according to combination indication information sent by a network for indicating a channel signal combination; Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to a network; When N is greater than 1, the processor is configured to: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit channels and / or signals in the corresponding channel signal combination with the network; When the N beam directions are beam directions of M terminals, the first beam direction of the first terminal is determined according to the second corresponding relationship between the N beam directions and the terminals; the at least two target channels and / or target reference signals are determined according to pre-configuration information or according to combined indication information sent by the network for indicating a channel signal combination; and based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from the network.

33. A beam indication device, applied to a network side device, characterized in that: include: A message generating module, configured to generate a first message, wherein the first message includes beam-related information for indicating N beam directions, where N is greater than or equal to 1; A message sending module, used for sending a first message to a first terminal; A transmission module, configured for the network side device to transmit at least two target channels and / or target reference signals according to the beam related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the transmission module is used to: Determine the only beam direction indicated by the beam-related information as a first beam direction; Determining the at least two target channels and / or target reference signals according to preconfigured information or combined indication information for indicating a channel signal combination; Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to the first terminal; When N is greater than 1, the transmission module is used to: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal; When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminal; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

34. A network side device, comprising: A memory, a processor, a transceiver, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the following steps are implemented: Generate a first message, the first message including beam-related information for indicating N beam directions, where N is greater than or equal to 1; Sending a first message to a first terminal; The network side device transmits at least two target channels and / or target reference signals according to the beam related information; The N beam directions are: a beam direction of each channel signal combination among N channel signal combinations, each of the channel signal combinations comprising at least two channels and / or reference signals; or, beam directions of M terminals, where M is an integer greater than or equal to 2 and less than or equal to N; When N is equal to 1, the processor is configured to: Determine the only beam direction indicated by the beam-related information as a first beam direction; According to the pre-configuration information or the combination indication information for indicating the channel signal combination, the at least Based on the first beam direction, transmitting the at least two target channels and / or target reference signals to the first terminal; When N is greater than 1, the processor is configured to: When the N beam directions are beam directions of each combination in N channel signal combinations, determine a first beam direction of each channel signal combination according to a first corresponding relationship between the N beam directions and the channel signal combination; based on the determined first beam direction of each channel signal combination, transmit a channel and / or signal in the corresponding channel signal combination with the first terminal; When the N beam directions are the beam directions of M terminals, the first beam direction of each terminal is determined according to the second corresponding relationship between the N beam directions and the terminal; the at least two target channels and / or target reference signals are determined according to the pre-configuration information or the combination indication information sent by the network for indicating the channel signal combination; based on the first beam direction, the at least two target channels and / or target reference signals are transmitted to and from each terminal.

35. A computer storage medium, characterized in that The method comprises instructions, which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 30.

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