Beam indication method, device, network side equipment and terminal

Abstract

The present application discloses a beam indication method, apparatus, network-side equipment, and terminal. The method includes: sending a first downlink control information DCI or a first media access control layer control unit MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information; an embodiment of the present application indicates the common beam information of a channel and / or reference signal through DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and provides a feedback mechanism for the common beam information and a scheme for the effective time, thereby ensuring the robustness of the beam indication method and the consistent understanding of the effectiveness of the network and terminal beams, thereby improving system performance.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a beam indication method, device, network-side equipment and terminal. Background Art

[0002] Analog beamforming uses full-bandwidth transmission, and each polarization element on each high-frequency antenna array panel can only transmit analog beams in a time-division multiplexed manner. The shaping weights of the analog beams are achieved by adjusting the parameters of devices such as the RF front-end phase shifter.

[0003] Currently, simulated beamforming vector training is typically performed using a polling method. This involves time-division multiplexing (TDM) each element on each antenna panel and each polarization direction sending training signals (i.e., candidate beamforming vectors) at scheduled times. After measurement, the terminal then returns a beam report, which the network then uses to implement simulated beam transmission during the next service transmission. The beam report typically includes the identifiers of the optimal transmit beams and the measured received power of each transmit beam.

[0004] After beam measurement and reporting, the network can issue beam indications for downlink and uplink channels or reference signals, which are used to establish beam links between the network and the terminal and enable channel or reference signal transmission. However, existing technologies use different beam indication mechanisms for various channels and reference signals, resulting in significant signaling overhead. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a beam indication method, apparatus, network-side equipment, and terminal, which can solve the problem of large signaling overhead caused by different beam indication mechanisms for various channels and reference signals in the prior art.

[0006] In a first aspect, an embodiment of the present application provides a beam indication method, applied to a network-side device, the method comprising:

[0007] Sending first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0008] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

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

[0010] receiving first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0011] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0012] In a third aspect, an embodiment of the present application provides a beam indication device, applied to a network-side device, comprising:

[0013] a sending module, configured to send first downlink control information DCI or a first media access control layer control element MACCE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0014] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0015] In a fourth aspect, an embodiment of the present application provides a beam indication device, applied to a terminal, including:

[0016] A receiving module, configured to receive first downlink control information DCI or a first media access control layer control element MACCE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0017] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0018] In the fifth aspect, an embodiment of the present application provides a network side device, which includes a processor, a memory, and a program or instruction stored on the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0019] In the sixth aspect, an embodiment of the present application provides a terminal, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0020] In the seventh aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0021] In the eighth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run network-side device programs or instructions to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0022] In an embodiment of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism for the common beam information and a scheme for the effective time are provided to ensure the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A block diagram showing a wireless communication system to which embodiments of the present application may be applied;

[0024] Figure 2 A schematic diagram showing one of the steps of the beam indication method provided in an embodiment of the present application;

[0025] Figure 3 A second schematic diagram showing the steps of the beam indication method provided in an embodiment of the present application;

[0026] Figure 4 One of the structural diagrams of the beam pointing device provided in an embodiment of the present application is shown;

[0027] Figure 5 A second structural diagram of a beam pointing device provided in an embodiment of the present application is shown;

[0028] Figure 6 A schematic diagram showing the structure of a communication device provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram showing the structure of a terminal provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram showing the structure of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0033] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, although these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0034] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices. Wearable devices include: bracelets, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, where 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, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0035] It should be noted that the "beam information" mentioned in the embodiments of the present application can also be referred to as: spatial relation information, spatial domain transmission filter information, spatial filter information, transmission configuration indication state (TCI state) information, quasi-co-location (QCL) information or QCL parameters, which are not specifically limited here.

[0036] The following, in combination with the accompanying drawings, describes in detail the beam indication method, device, network-side equipment and terminal provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0037] like Figure 2 As shown, an embodiment of the present application provides a beam indication method, which is applied to a network-side device, including:

[0038] Step 201: Send first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information (which may be referred to as common beam information);

[0039] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0040] For example, the above-mentioned channels include at least one of the following: physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH), physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH), physical uplink control channel (Physical Uplink Control CHannel, PUCCH), and physical downlink control channel (Physical Downlink Control CHannel, PDCCH); the above-mentioned reference signals include at least one of the following: channel state information reference signal (Channel State Information Reference Signal, CSI-RS), and channel sounding reference signal (Sounding Reference Signal, SRS).

[0041] It should be noted that if the first DCI or the first MAC CE indicates a common beam information, the common beam information applies to all channels and reference signals of the corresponding terminal; if the first DCI or the first MAC CE indicates at least two common beam information, each common beam information corresponds to a type of channel or reference signal; wherein, the classification of channels or reference signals can be classified according to their functions or transmission directions, for example, data channels are one type, control channels are another type, and reference signals are another type; for another example, uplink channels and uplink reference signals are one type, and downlink channels and downlink reference signals are one type; no specific limitation is made here.

[0042] In an optional embodiment of the present application, the above-mentioned first DCI may be a DCI format dedicated to indicating common beam information; or, the above-mentioned first DCI may reuse an existing DCI format, such as DCI format1_1, DCI format1_0, DCI format0_1, DCI format0_0, etc.

[0043] As an optional embodiment of the present application, the common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following:

[0044] The first type controls the resource set;

[0045] A first type of control resource set and a channel or reference signal associated with the first type of control resource set.

[0046] The channel or reference signal associated with the first type of control resource set includes at least one of the following:

[0047] The first type controls DCI-scheduled channels or reference signals on resource sets, such as PDSCH, PUSCH, and CSI-RS.

[0048] The first type of control resource set includes feedback channels corresponding to DCI-scheduled channels, such as PUCCH and PUSCH.

[0049] As an optional embodiment, the control resource set where the first DCI is located belongs to the first type of control resource set. In other words, the common beam information indicated by the first DCI is applicable to the first type of control resource set to which the control resource set where the first DCI is located belongs.

[0050] In at least one optional embodiment of the present application, sending the first downlink control information DCI in step 201 includes:

[0051] Sending a downlink control channel on a second type of control resource set, where the downlink control channel includes the first DCI;

[0052] The beam information of the second type of control resource set is indicated by a second MAC CE or a DCI before the first DCI, or the target beam information is indicated by a second MAC CE or a DCI before the first DCI, and the target beam information is the beam information of the second type of control resource set and the channel or reference signal associated with the second type of control resource set.

[0053] In other words, the first DCI is carried by the PDCCH on the second type of control resource set, and the beam information of the second type of control resource set (such as TCI status information) is indicated by the second MAC CE, or by the previous DCI of the first DCI.

[0054] In the embodiment of the present application, before step 201, the method further includes:

[0055] Determine the common beam information from multiple beam information configured by radio resource control RRC signaling; for example, the network side device selects one beam information from multiple beam information configured by RRC signaling as the common beam information;

[0056] Alternatively, the common beam information is determined from multiple beam information activated by the third MAC CE; for example, the network side device selects one beam information as the common beam information from multiple beam information activated by the third MAC CE.

[0057] As an optional embodiment, step 201 includes:

[0058] If the quantity of the at least one common beam information satisfies the first condition, a first DCI is sent; otherwise, a first MAC CE is sent.

[0059] For example, if the number of public beam information to be indicated is less than (or equal to) a preset value, the public beam information is indicated through the first DCI; if the number of public beam information to be indicated is greater than (or equal to) the preset value, the public beam information is indicated through the first MAC CE.

[0060] Furthermore, at least one embodiment of the present application further provides a feedback mechanism for common beam information. That is, after step 201, the method further includes:

[0061] The receiving terminal sends first feedback information, where the first feedback information is used to indicate whether the terminal has correctly received the first DCI or the first MAC CE. For example, the first feedback information is hybrid automatic repeat request acknowledgement (HARQ-ACK) information. Furthermore, the first feedback information is used to indicate whether the terminal has correctly received common beam information. Optionally, the first feedback information can be carried on a PUCCH or a PUSCH.

[0062] As an optional embodiment, the method further includes:

[0063] An uplink resource of the first feedback information is determined according to a first manner, wherein the first manner includes at least one of the following:

[0064] Determine, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, the uplink resource of the first feedback information; that is, the uplink resource of the first feedback information directly carried in the first DCI or the first MAC CE;

[0065] Determining, based on the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information; that is, there is a preset association relationship between the downlink resource where the first DCI or the first MAC CE is located and the uplink resource of the corresponding first feedback information;

[0066] According to the transmission moment of the first DCI or the first MAC CE and the preset timing relationship, it is determined that the uplink resource that satisfies the preset timing relationship with the transmission moment of the first DCI or the first MAC CE is the uplink resource of the first feedback information; that is, there is a preset timing relationship between the transmission moment of the first DCI or the first MAC CE and the uplink resource of the first feedback information; for example, the first available uplink resource after the transmission moment of the first DCI or the first MAC CE + the preset duration is the uplink resource of the first feedback information.

[0067] It should be noted that the first DCI mentioned in the embodiment of the present application can be a DCI dedicated to indicating common beam information, or it can reuse existing DCI, such as DCI for scheduling PDSCH, or DCI for scheduling PUSCH.

[0068] As an optional embodiment, when the first DCI is also used to schedule a physical downlink shared channel PDSCH, the method further includes:

[0069] Receive PDSCH feedback information;

[0070] The first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information; that is, the first target feedback information does not distinguish which part is the first feedback information and which part is the PDSCH feedback information; it is a single piece of feedback information. For example, the first target feedback information is 1 bit. When this bit is set to 1, the first target feedback information is ACK. In this case, both the first feedback information and the PDSCH feedback information are ACK. When this bit is set to 0, the first target feedback information is NACK. In this case, at least one of the first feedback information and the PDSCH feedback information is NACK, but the network cannot distinguish which feedback information is NACK.

[0071] Alternatively, the first feedback information and the PDSCH feedback information are separately indicated in the second target feedback information; that is, the second target feedback information distinguishes which portion is the first feedback information and which portion is the PDSCH feedback information; it is composed of two pieces of feedback information. For example, the second target feedback information is 2 bits, the first bit corresponds to the first feedback information, and the second bit corresponds to the PDSCH feedback information. If the two bits are 10, the first feedback information is ACK and the PDSCH feedback information is NACK; if the two bits are 01, the first feedback information is NACK and the PDSCH feedback information is ACK. These are not enumerated here; in this case, the network can distinguish the first feedback information from the PDSCH feedback information.

[0072] It should be noted that the first target feedback information or the second target feedback information may multiplex the PDSCH feedback information in the current technology; or, the PDSCH feedback information in the current technology may be modified.

[0073] As another optional embodiment, when the first DCI is also used to schedule a physical uplink shared channel PUSCH, the PUSCH has no feedback information, so the first feedback information is feedback information for the first DCI; accordingly, in this case, the uplink resource where the first feedback information is located includes at least one of the following:

[0074] A PUSCH scheduled by the first DCI;

[0075] A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID;

[0076] The first available uplink resource after the PUSCH scheduled by the first DCI;

[0077] The first available uplink resource after the first DCI.

[0078] In this case, the network-side device can determine whether the terminal has correctly received the first DCI by determining whether the HARQ process number (HARQ process number) used by the PUSCH scheduled by the second DCI is the same as the HARQ process number used by the PUSCH scheduled by the first DCI. For example, if the PUSCH scheduled by the second DCI uses the same HARQ process number as the PUSCH scheduled by the first DCI, the network-side device determines that the terminal has correctly received the first DCI; otherwise, it is considered that the terminal has not correctly received the first DCI.

[0079] Continuing with the above example, as an optional embodiment, the method further includes at least one of the following:

[0080] When the first feedback information is an acknowledgment (ACK), the channel or reference signal corresponding to the common beam information uses the common beam information (also referred to as the common beam information taking effect) after a first preset time period from the transmission time of the first feedback information. For example, the common beam information takes effect after the first feedback information is the transmission time of the ACK plus the first preset time period.

[0081] In the case where the first DCI is also used to schedule the physical uplink shared channel PUSCH, after the second preset time period from the transmission time of the second DCI, the channel or reference signal corresponding to the common beam information uses the common beam information (also referred to as the public beam information taking effect); wherein, the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number; for example, after the transmission time of the second DCI used by the PUSCH newly scheduled by the network and having the same HARQ process number as the PUSCH scheduled by the first DCI + the second preset time period, the public beam information takes effect.

[0082] In at least one optional embodiment of the present application, there may be a situation where the transmission time of a channel or reference signal scheduled by a DCI is before the common beam information takes effect. That is, if the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the method further includes:

[0083] Use first default beam information to transmit a channel or reference signal scheduled by a third DCI; wherein the first default beam information includes:

[0084] Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or

[0085] Beam information of the control resource set with the smallest ID.

[0086] Among them, the control resource set with the smallest ID can be: the control resource set with the lowest ID in all control resource sets on the current cell; the control resource set with the lowest ID in the above-mentioned first type of control resource set and second type of control resource set; or the control resource set with the lowest ID in a certain type of control resource set to which the control resource set of the third DCI of the scheduling channel or reference signal belongs.

[0087] In another optional embodiment of the present application, there may be a DCI whose transmission time is before the common beam information takes effect, but the transmission time of the channel or reference signal scheduled by the DCI takes effect after the common beam information takes effect, that is, if the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the method further includes:

[0088] Use the second default beam information to transmit the channel or reference signal scheduled by the fourth DCI; wherein the second default beam information includes:

[0089] beam information corresponding to the transmission time of the fourth DCI;

[0090] Beam information of the control resource set with the smallest ID;

[0091] Common beam information indicated by the first DCI or the first MAC CE.

[0092] It should be noted that “before the public beam information can be used” may also be referred to as: before the public beam information takes effect, where the effective time of the public beam information includes any of the following:

[0093] When the first feedback information is an acknowledgment (ACK), after a first preset time period from the transmission time of the first feedback information;

[0094] In a case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, the second preset time period begins after the transmission time of the second DCI.

[0095] Among them, the control resource set with the smallest ID can be: the control resource set with the lowest ID in all control resource sets on the current cell; the control resource set with the lowest ID in the above-mentioned first type of control resource set and second type of control resource set; or, the control resource set with the lowest ID in a certain type of control resource set to which the control resource set of the fourth DCI of the scheduling channel or reference signal belongs.

[0096] In order to ensure the robustness mechanism of the common beam information indicated by the first DCI or the first MAC CE, in at least one embodiment of the present application, the method further includes:

[0097] When the first feedback information is a confirmation response, use the common beam information to transmit a corresponding channel or reference signal;

[0098] or,

[0099] In a case where the first feedback information is a negative response, the first DCI or the first MAC CE indicating at least one common beam information is resent.

[0100] Alternatively, the method further comprises:

[0101] If the network side device does not receive feedback information of the first DCI or the first MAC CE, it resends the first DCI or the first MAC CE indicating at least one common beam information.

[0102] Among them, the network side device does not receive the feedback information of the first DCI or the first MAC CE, which includes two situations: the terminal sends the corresponding feedback information but the network side device does not receive it, and the terminal does not send the corresponding feedback information.

[0103] For example, when the first DCI is used only to indicate common beam information, the transmission timing between the network side device and the terminal side is:

[0104] First DCI → HARQ-ACK → PDSCH / PUSCH;

[0105] Alternatively, first DCI→HARQ-ACK→second DCI→PDSCH / PUSCH.

[0106] For another example, when the first DCI is used to indicate common beam information and to schedule PDSCH, the transmission timing between the network side device and the terminal side is:

[0107] First DCI→PDSCH→HARQ-ACK; wherein, the network side device uses the common beam information indicated in the first DCI to send PDSCH.

[0108] For another example, when the first DCI is used to indicate common beam information and to schedule PUSCH, the transmission timing between the network side device and the terminal side is:

[0109] First DCI→first PUSCH→second DCI→newly scheduled second PUSCH with the same HARQ process number as the first PUSCH.

[0110] Optionally, in at least one embodiment of the present application, when the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information:

[0111] If the first target feedback information is a positive response, the first feedback information and the PDSCH feedback information are both positive responses;

[0112] or,

[0113] If the first target feedback information is a negative acknowledgement, at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement.

[0114] In the embodiment of the present application, the first target feedback information does not distinguish between the first feedback information and the PDSCH feedback information; it is a single piece of feedback information. For example, if the first target feedback information is 1 bit and this bit is set to 1, the first target feedback information is ACK. In this case, both the first feedback information and the PDSCH feedback information are ACKs. If this bit is set to 0, the first target feedback information is NACK. In this case, at least one of the first feedback information and the PDSCH feedback information is NACK, but the network cannot distinguish which feedback information is NACK.

[0115] Optionally, in at least one embodiment of the present application, when the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information:

[0116] The second target feedback information also includes: first indication information, where the first indication information is used to indicate that the second target feedback information includes the first feedback information or PDSCH feedback information; for example, explicitly indicating in the HARQ-ACK information that it is the first feedback information or PDSCH feedback information; optionally, the indication information is carried only when NACK is fed back; for another example, the second target feedback information includes M1 bit feedback-related information, and 1 bit (i.e., the second indication information) is added before the M1 bit feedback-related information, and the bit is set to 1 to indicate that the subsequent M1 bit is the first feedback information; the bit is set to 0 to indicate that the subsequent M bits are PDSCH feedback information;

[0117] or,

[0118] The second target feedback information also includes: second indication information, where the second indication information is used to indicate the arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information; for example, the second target feedback information includes M2-bit feedback-related information, and 1 bit (i.e., the second indication information) is added before the M2-bit feedback-related information. When the bit is set to 1, it indicates that the first N1 bits of the subsequent M2 bits are the first feedback information, and the last N2 bits are the PDSCH feedback information; when the bit is set to 0, it indicates that the first N1 bits of the subsequent M2 bits are the PDSCH feedback information, and the last N2 bits are the first feedback information.

[0119] or,

[0120] Indicating, by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method respectively used by the first feedback information and the feedback information of the PDSCH, that the second target feedback information includes the first feedback information or the feedback information of the PDSCH; the feedback information on uplink resource 1 is the first feedback information, and the feedback information on uplink resource 2 is the feedback information of the PDSCH;

[0121] or,

[0122] In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule; the network side device can determine whether the corresponding feedback information is the first feedback information or the PDSCH feedback information according to the order of arrangement; for example, the first feedback information occupies the first M3 bits, and the PDSCH feedback information occupies the last M4 bits;

[0123] or,

[0124] In the second target feedback information, the first feedback information and the feedback information of the PDSCH are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the feedback information of the PDSCH included in the second target feedback information; for example, the second target feedback information is M5 bits, assuming that M5 is equal to 2, and the preset coding rule indicates that a decoding result of "01" indicates that the first feedback information and the feedback information of the PDSCH are both ACK, and a decoding result of "10" indicates that the first feedback information is ACK and the feedback information of the PDSCH is NACK; these are not enumerated one by one here.

[0125] As an optional embodiment, the first feedback information sent by the receiving terminal includes:

[0126] Receiving first feedback information sent by the terminal using current beam information (also referred to as original beam information, or beam information used for channel or reference signal transmission between the network device and the terminal before sending the first DCI) until the common beam information can be used;

[0127] or,

[0128] The receiving terminal sends first feedback information using the common beam information.

[0129] It should be noted that “the public beam information can be used” can also be referred to as: the public beam information takes effect, wherein the effective time of the public beam information includes any of the following:

[0130] When the first feedback information is an acknowledgment (ACK), after a first preset time period from the transmission time of the first feedback information;

[0131] In a case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, the second preset time period begins after the transmission time of the second DCI.

[0132] As another optional embodiment, if the first DCI is also used to schedule the PDSCH, the method further includes:

[0133] If the network side device does not receive feedback information of the first DCI or receives feedback information of a negative acknowledgement of the first DCI, resend the first DCI indicating at least one common beam information;

[0134] or,

[0135] If the network-side device does not receive the feedback information of the first DCI or receives feedback information of a negative acknowledgement of the first DCI, it resends the PDSCH until the number of times the feedback information of the PDSCH is not received or the number of times the feedback information of the negative acknowledgement of the PDSCH is received reaches a first preset number, and resends the first DCI indicating at least one common beam information. It should be noted that this method is generally used in scenarios where the first feedback information and the feedback information of the PDSCH are jointly indicated in the first target feedback information, that is, the network cannot distinguish whether the received negative acknowledgement is for the first DCI or for the PDSCH.

[0136] For example, if the first DCI is lost, the network still uses the common beam information indicated by the first DCI to send PDSCH. The terminal cannot receive the first DCI and PDSCH, and will not feedback HARQ-ACK. Then the network resends the first DCI indicating at least one common beam information.

[0137] For another example, if the first DCI is decoded incorrectly, the network still uses the common beam information indicated by the first DCI to send PDSCH. The terminal cannot receive PDSCH, and the terminal feedback NACK or no feedback. The network will resend the first DCI, or the network will resend the PDSCH a specific number of times before resending the first DCI.

[0138] For another example, the first DCI is correctly received by the terminal, the network uses the indicated common beam information to send PDSCH, and the terminal receives the PDSCH; if the terminal feeds back ACK or NACK but the network does not receive it, the network resends the first DCI, or resends the PDSCH until it receives NACK a certain number of times or no feedback is received before resending the first DCI; if the terminal feeds back NACK and the network receives it, the network resends the PDSCH, or the network will resend the first DCI, or the network resends the PDSCH until it receives NACK a preset number of times or no feedback is received before resending the first DCI.

[0139] As another optional embodiment, if the first DCI is also used to schedule a PUSCH, the method further includes:

[0140] If the PUSCH scheduled by the first DCI is not received, or the first feedback information is not received on the uplink resource where the first feedback information is located, or the first feedback information of a negative acknowledgement is received, the first DCI indicating at least one common beam information is resent.

[0141] For example, if the first DCI is lost or the first DCI is decoded incorrectly, the terminal does not send the PUSCH, and the network resends the first DCI.

[0142] For another example, if the first DCI is decoded correctly, the terminal sends a PUSCH. If the network does not correctly receive the PUSCH, the network retransmits the first DCI. If the network correctly receives the PUSCH, the subsequent DCI can be executed to schedule the PUSCH again. The terminal determines the effective time of the common beam information indicated by the first DCI based on the HARQ process number. Before the common beam information takes effect, the terminal uses the original beam information (i.e., the beam information used for channel or reference signal transmission between the network device and the terminal before sending the first DCI).

[0143] In summary, in the embodiments of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism and an effective time scheme for the common beam information are provided, thereby ensuring the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance.

[0144] like Figure 3 As shown, an embodiment of the present application further provides a beam indication method, applied to a terminal, including:

[0145] Step 301: Receive first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0146] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0147] For example, the above-mentioned channels include at least one of the following: physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH), physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH), physical uplink control channel (Physical Uplink Control CHannel, PUCCH), and physical downlink control channel (Physical Downlink Control CHannel, PDCCH); the above-mentioned reference signals include at least one of the following: channel state information reference signal (Channel State Information Reference Signal, CSI-RS), and channel sounding reference signal (Sounding Reference Signal, SRS).

[0148] It should be noted that if the first DCI or the first MAC CE indicates a common beam information, the common beam information applies to all channels and reference signals of the corresponding terminal; if the first DCI or the first MAC CE indicates at least two common beam information, each common beam information corresponds to a type of channel or reference signal; wherein, the classification of channels or reference signals can be classified according to their functions or transmission directions, for example, data channels are one type, control channels are another type, and reference signals are another type; for another example, uplink channels and uplink reference signals are one type, and downlink channels and downlink reference signals are one type; no specific limitation is made here.

[0149] In an optional embodiment of the present application, the above-mentioned first DCI may be a DCI format dedicated to indicating common beam information; or, the above-mentioned first DCI may reuse an existing DCI format, such as DCI format1_1, DCI format1_0, DCI format0_1, DCI format0_0, etc.

[0150] As an optional embodiment of the present application, the common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following:

[0151] The first type controls the resource set;

[0152] A first type of control resource set and a channel or reference signal associated with the first type of control resource set.

[0153] The channel or reference signal associated with the first type of control resource set includes at least one of the following:

[0154] The first type controls DCI-scheduled channels or reference signals on resource sets, such as PDSCH, PUSCH, and CSI-RS.

[0155] The first type of control resource set includes feedback channels corresponding to DCI-scheduled channels, such as PUCCH and PUSCH.

[0156] As an optional embodiment, the control resource set where the first DCI is located belongs to the first type of control resource set. In other words, the common beam information indicated by the first DCI is applicable to the first type of control resource set to which the control resource set where the first DCI is located belongs.

[0157] In at least one optional embodiment of the present application, the receiving of first downlink control information DCI in step 301 includes:

[0158] Determine, according to an indication of a second MAC CE or a DCI preceding the first DCI, beam information of a second type of control resource set, or determine target beam information, where the target beam information is beam information of the second type of control resource set and a channel or reference signal associated with the second type of control resource set;

[0159] A downlink control channel is received on the second-type control resource set, where the downlink control channel includes the first DCI.

[0160] In other words, the first DCI is carried by the PDCCH on the second type of control resource set, and the beam information of the second type of control resource set (such as TCI status information) is indicated by the second MAC CE, or by the previous DCI of the first DCI.

[0161] Furthermore, at least one embodiment of the present application further provides a feedback mechanism for common beam information. That is, after step 301, the method further includes:

[0162] Sending first feedback information to the network side device, where the first feedback information is used to indicate whether the terminal has correctly received the first DCI or the first MAC CE. For example, the first feedback information is hybrid automatic repeat request acknowledgement (HARQ-ACK) information. Furthermore, the first feedback information is used to indicate whether the terminal has correctly received the common beam information. Optionally, the first feedback information can be carried on the PUCCH or the PUSCH.

[0163] As an optional embodiment, the method further includes:

[0164] An uplink resource of the first feedback information is determined according to a first manner, wherein the first manner includes at least one of the following:

[0165] Determine, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, the uplink resource of the first feedback information; that is, the uplink resource of the first feedback information directly carried in the first DCI or the first MAC CE;

[0166] Determining, based on the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information; that is, there is a preset association relationship between the downlink resource where the first DCI or the first MAC CE is located and the uplink resource of the corresponding first feedback information;

[0167] According to the transmission moment of the first DCI or the first MAC CE and the preset timing relationship, it is determined that the uplink resource that satisfies the preset timing relationship with the transmission moment of the first DCI or the first MAC CE is the uplink resource of the first feedback information; that is, there is a preset timing relationship between the transmission moment of the first DCI or the first MAC CE and the uplink resource of the first feedback information; for example, the first available uplink resource after the transmission moment of the first DCI or the first MAC CE + the preset duration is the uplink resource of the first feedback information.

[0168] It should be noted that the first DCI mentioned in the embodiment of the present application can be a DCI dedicated to indicating common beam information, or it can reuse existing DCI, such as DCI for scheduling PDSCH, or DCI for scheduling PUSCH.

[0169] As an optional embodiment, when the first DCI is also used to schedule a physical downlink shared channel PDSCH, the method further includes:

[0170] Send PDSCH feedback information;

[0171] The first feedback information and the feedback information of the PDSCH are jointly indicated (for example, the feedback information of the PDSCH is multiplexed), or the first feedback information and the feedback information of the PDSCH are independently indicated (for example, the first feedback information is only used to indicate whether the terminal has correctly received the common beam information, and the feedback information of the PDSCH is only used to indicate whether the terminal has correctly received the PDSCH).

[0172] As another optional embodiment, when the first DCI is also used to schedule a physical uplink shared channel PUSCH, the PUSCH has no feedback information, so the first feedback information is feedback information for the first DCI; accordingly, in this case, the uplink resource where the first feedback information is located includes at least one of the following:

[0173] The uplink resource where the first feedback information is located includes at least one of the following:

[0174] A PUSCH scheduled by the first DCI;

[0175] A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID;

[0176] The first available uplink resource after the PUSCH scheduled by the first DCI;

[0177] The first available uplink resource after the first DCI.

[0178] In this case, the network-side device can determine whether the terminal has correctly received the first DCI by determining whether the HARQ process number (HARQ process number) used by the PUSCH scheduled by the second DCI is the same as the HARQ process number used by the PUSCH scheduled by the first DCI. For example, if the PUSCH scheduled by the second DCI uses the same HARQ process number as the PUSCH scheduled by the first DCI, the network-side device determines that the terminal has correctly received the first DCI; otherwise, it is considered that the terminal has not correctly received the first DCI.

[0179] Continuing with the above example, as an optional embodiment, the method further includes at least one of the following:

[0180] When the first feedback information is an acknowledgment (ACK), the channel or reference signal corresponding to the common beam information uses the common beam information (also referred to as the common beam information taking effect) after a first preset time period from the transmission time of the first feedback information. For example, the common beam information takes effect after the first feedback information is the transmission time of the ACK plus the first preset time period.

[0181] In the case where the first DCI is also used to schedule the physical uplink shared channel PUSCH, after the second preset time period from the transmission time of the second DCI, the channel or reference signal corresponding to the common beam information uses the common beam information (also referred to as the public beam information taking effect); wherein, the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number; for example, after the transmission time of the second DCI used by the PUSCH newly scheduled by the network and having the same HARQ process number as the PUSCH scheduled by the first DCI + the second preset time period, the public beam information takes effect.

[0182] In at least one optional embodiment of the present application, there may be a situation where the transmission time of a channel or reference signal scheduled by a DCI is before the common beam information takes effect. That is, if the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the method further includes:

[0183] Use first default beam information to transmit a channel or reference signal scheduled by a third DCI; wherein the first default beam information includes:

[0184] Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or

[0185] Beam information of the control resource set with the smallest ID.

[0186] Among them, the control resource set with the smallest ID can be: the control resource set with the lowest ID in all control resource sets on the current cell; the control resource set with the lowest ID in the above-mentioned first type of control resource set and second type of control resource set; or the control resource set with the lowest ID in a certain type of control resource set to which the control resource set of the third DCI of the scheduling channel or reference signal belongs.

[0187] In another optional embodiment of the present application, there may be a DCI whose transmission time is before the common beam information takes effect, but the transmission time of the channel or reference signal scheduled by the DCI takes effect after the common beam information takes effect, that is, if the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the method further includes:

[0188] Use the second default beam information to transmit the channel or reference signal scheduled by the fourth DCI; wherein the second default beam information includes:

[0189] beam information corresponding to the transmission time of the fourth DCI;

[0190] Beam information of the control resource set with the smallest ID;

[0191] Common beam information indicated by the first DCI or the first MAC CE.

[0192] It should be noted that “before the public beam information can be used” may also be referred to as: before the public beam information takes effect, where the effective time of the public beam information includes any of the following:

[0193] When the first feedback information is an acknowledgment (ACK), after a first preset time period from the transmission time of the first feedback information;

[0194] In a case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, the second preset time period begins after the transmission time of the second DCI.

[0195] Among them, the control resource set with the smallest ID can be: the control resource set with the lowest ID in all control resource sets on the current cell; the control resource set with the lowest ID in the above-mentioned first type of control resource set and second type of control resource set; or, the control resource set with the lowest ID in a certain type of control resource set to which the control resource set of the fourth DCI of the scheduling channel or reference signal belongs.

[0196] In order to ensure the robustness mechanism of the common beam information indicated by the first DCI or the first MAC CE, in at least one embodiment of the present application, the method further includes:

[0197] If the first feedback information is an acknowledgment, use the common beam information to transmit a corresponding channel or reference signal, or re-receive a first DCI or a first MAC CE indicating at least one common beam information; for example, if the first feedback information is ACK and the network-side device receives the ACK, the common beam information takes effect; or if the first feedback information is ACK but the network-side device does not receive it, re-receive the first DCI or the first MAC CE;

[0198] or,

[0199] In a case where the first feedback information is a negative response, a first DCI or a first MAC CE indicating at least one common beam information is re-received.

[0200] Among them, the network side device does not receive the feedback information of the first DCI or the first MAC CE, which includes two situations: the terminal sends the corresponding feedback information but the network side device does not receive it, and the terminal does not send the corresponding feedback information.

[0201] For example, when the first DCI is used only to indicate common beam information, the transmission timing between the network side device and the terminal side is:

[0202] First DCI → HARQ-ACK → PDSCH / PUSCH;

[0203] Alternatively, first DCI→HARQ-ACK→second DCI→PDSCH / PUSCH.

[0204] For another example, when the first DCI is used to indicate common beam information and to schedule PDSCH, the transmission timing between the network side device and the terminal side is:

[0205] First DCI→PDSCH→HARQ-ACK; wherein, the network side device uses the common beam information indicated in the first DCI to send PDSCH.

[0206] For another example, when the first DCI is used to indicate common beam information and to schedule PUSCH, the transmission timing between the network side device and the terminal side is:

[0207] First DCI→first PUSCH→second DCI→newly scheduled second PUSCH with the same HARQ process number as the first PUSCH.

[0208] Optionally, in at least one embodiment of the present application, when the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information:

[0209] If the first target feedback information is a positive response, the first feedback information and the PDSCH feedback information are both positive responses;

[0210] or,

[0211] If the first target feedback information is a negative acknowledgement, at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement.

[0212] In the embodiment of the present application, the first target feedback information does not distinguish between the first feedback information and the PDSCH feedback information; it is a single piece of feedback information. For example, if the first target feedback information is 1 bit and this bit is set to 1, the first target feedback information is ACK. In this case, both the first feedback information and the PDSCH feedback information are ACKs. If this bit is set to 0, the first target feedback information is NACK. In this case, at least one of the first feedback information and the PDSCH feedback information is NACK, but the network cannot distinguish which feedback information is NACK.

[0213] Optionally, in at least one embodiment of the present application, when the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information:

[0214] The second target feedback information also includes: first indication information, where the first indication information is used to indicate that the second target feedback information includes the first feedback information or PDSCH feedback information; for example, explicitly indicating in the HARQ-ACK information that it is the first feedback information or PDSCH feedback information; optionally, the indication information is carried only when NACK is fed back; for another example, the second target feedback information includes M1 bit feedback-related information, and 1 bit (i.e., the second indication information) is added before the M1 bit feedback-related information, and the bit is set to 1 to indicate that the subsequent M1 bit is the first feedback information; the bit is set to 0 to indicate that the subsequent M1 bit is PDSCH feedback information;

[0215] or,

[0216] The second target feedback information also includes: second indication information, where the second indication information is used to indicate the arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information; for example, the second target feedback information includes M2-bit feedback-related information, and 1 bit (i.e., the second indication information) is added before the M2-bit feedback-related information. When the bit is set to 1, it indicates that the first N1 bits of the subsequent M2 bits are the first feedback information, and the last N2 bits are the PDSCH feedback information; when the bit is set to 0, it indicates that the first N1 bits of the subsequent M2 bits are the PDSCH feedback information, and the last N2 bits are the first feedback information.

[0217] or,

[0218] Indicating, by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method respectively used by the first feedback information and the feedback information of the PDSCH, that the second target feedback information includes the first feedback information or the feedback information of the PDSCH; the feedback information on uplink resource 1 is the first feedback information, and the feedback information on uplink resource 2 is the feedback information of the PDSCH;

[0219] or,

[0220] In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule; the network side device can determine whether the corresponding feedback information is the first feedback information or the PDSCH feedback information according to the order of arrangement; for example, the first feedback information occupies the first M3 bits, and the PDSCH feedback information occupies the last M4 bits;

[0221] or,

[0222] In the second target feedback information, the first feedback information and the feedback information of the PDSCH are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the feedback information of the PDSCH included in the second target feedback information; for example, the second target feedback information is M5 bits, assuming that M5 is equal to 2, and the preset coding rule indicates that a decoding result of "01" indicates that the first feedback information and the feedback information of the PDSCH are both ACK, and a decoding result of "10" indicates that the first feedback information is ACK and the feedback information of the PDSCH is NACK; these are not enumerated one by one here.

[0223] As an optional embodiment, the sending the first feedback information to the network-side device includes:

[0224] Sending the first feedback information using current beam information (also referred to as original beam information, or beam information used for channel or reference signal transmission between the network device and the terminal before sending the first DCI) until the common beam information can be used;

[0225] Alternatively, the first feedback information is sent using the common beam information.

[0226] It should be noted that “the public beam information can be used” can also be referred to as: the public beam information takes effect, wherein the effective time of the public beam information includes any of the following:

[0227] When the first feedback information is an acknowledgment (ACK), after a first preset time period from the transmission time of the first feedback information;

[0228] In a case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, the second preset time period begins after the transmission time of the second DCI.

[0229] As another optional embodiment, if the first DCI is also used to schedule PDSCH, if the terminal does not send feedback information, or the terminal sends negative acknowledgment feedback information, or the terminal sends feedback information (ACK or NACK) but the network side device does not receive it, the method further includes:

[0230] Re-receiving a first DCI indicating at least one common beam information;

[0231] or,

[0232] Re-receive the PDSCH until the number of times that the feedback information of the PDSCH is not sent or the feedback information of the negative response of the PDSCH is sent reaches a first preset number of times, and re-receive the first DCI indicating at least one common beam information. That is, re-receive the PDSCH until the number of times that the feedback information of the PDSCH is not sent or the feedback information of the negative response of the PDSCH is sent reaches a first preset number of times, and re-receive the first DCI indicating at least one common beam information. It should be noted that this method is generally used in the scenario where the first feedback information and the feedback information of the PDSCH are jointly indicated in the first target feedback information, that is, the network cannot distinguish whether the received negative response is for the first DCI or for the PDSCH, so the feedback information sent by the terminal at this time is the first target feedback information.

[0233] For example, if the first DCI is lost, the network still uses the common beam information indicated by the first DCI to send PDSCH. The terminal cannot receive the first DCI and PDSCH, and will not feedback HARQ-ACK. Then the terminal receives the first DCI resent by the network indicating at least one common beam information.

[0234] For another example, the first DCI is decoded incorrectly, and the network still uses the common beam information indicated by the first DCI to send PDSCH. The terminal cannot receive PDSCH, and the terminal feedback NACK or no feedback. Then the terminal receives the first DCI resent by the network, or the terminal receives the first DCI resent by the network after resending PDSCH a specific number of times.

[0235] For another example, the first DCI is correctly received by the terminal, the network uses the indicated common beam information to send PDSCH, and the terminal receives the PDSCH; if the terminal feeds back ACK or NACK but the network does not receive it, the terminal receives the first DCI resent by the network, or the terminal receives the first DCI resent by the network after the PDSCH is resent and the terminal receives NACK or no feedback is received before a specific number of times; if the terminal feeds back NACK and the network receives it, the terminal receives the PDSCH resent by the network, or the terminal receives the first DCI resent by the network, or the terminal receives the first DCI resent by the network after the PDSCH is resent and the terminal receives NACK or no feedback is received before a preset number of times.

[0236] As another optional embodiment, if the first DCI is also used to schedule a PUSCH, the method further includes:

[0237] If the terminal does not correctly receive the first DCI, or the terminal does not send the first feedback information on the uplink resource where the first feedback information is located, or the terminal sends the first feedback information of a negative acknowledgement, the first DCI indicating at least one common beam information is received again.

[0238] For example, if the first DCI is lost or the first DCI is decoded incorrectly, the terminal does not send a PUSCH, and the terminal receives the first DCI retransmitted by the network.

[0239] For another example, if the first DCI is decoded correctly, the terminal sends a PUSCH. If the network does not correctly receive the PUSCH, the terminal receives the first DCI retransmitted by the network. If the network correctly receives the PUSCH, the subsequent DCI can be executed to schedule the PUSCH again. The terminal determines the effective time of the common beam information indicated by the first DCI based on the HARQ process number. Before the common beam information takes effect, the terminal uses the original beam information (i.e., the beam information used for channel or reference signal transmission between the network device and the terminal before sending the first DCI).

[0240] In summary, in the embodiments of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism and an effective time scheme for the common beam information are provided, thereby ensuring the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance.

[0241] It should be noted that the beam pointing method provided in the embodiments of the present application can be executed by a beam pointing device, or a control module in the beam pointing device for executing the loaded beam pointing method. In the embodiments of the present application, the beam pointing device provided in the embodiments of the present application is described by taking the beam pointing method executed by the beam pointing device as an example.

[0242] like Figure 4 As shown, the embodiment of the present application further provides a beam indication device 400, which is applied to a network-side device, including:

[0243] A sending module 401 is configured to send first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0244] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0245] As an optional embodiment of the present application, the common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following:

[0246] The first type controls the resource set;

[0247] A first type of control resource set and a channel or reference signal associated with the first type of control resource set.

[0248] As an optional embodiment of the present application, the channel or reference signal associated with the first-type control resource set includes at least one of the following:

[0249] The first type controls the DCI-scheduled channels or reference signals on the resource set;

[0250] The first type of control resource set corresponds to the feedback channel scheduled by the DCI.

[0251] As an optional embodiment of the present application, the control resource set where the first DCI is located belongs to the first type of control resource set.

[0252] As an optional embodiment of the present application, the sending module includes:

[0253] A first sending submodule, configured to send a downlink control channel on a second type of control resource set, where the downlink control channel includes the first DCI;

[0254] The beam information of the second type of control resource set is indicated by a second MAC CE or a DCI before the first DCI, or the target beam information is indicated by a second MAC CE or a DCI before the first DCI, and the target beam information is the beam information of the second type of control resource set and the channel or reference signal associated with the second type of control resource set.

[0255] As an optional embodiment of the present application, the device further includes:

[0256] An information determination module, configured to determine the common beam information from multiple beam information configured by radio resource control RRC signaling;

[0257] Alternatively, it is used to determine the common beam information from multiple beam information activated by the third MAC CE.

[0258] As an optional embodiment of the present application, the sending module includes:

[0259] The second sending submodule is configured to send a first DCI if the quantity of the at least one common beam information meets a first condition; otherwise, send a first MAC CE.

[0260] As an optional embodiment of the present application, the device further includes:

[0261] The first feedback receiving module is configured to receive first feedback information sent by a terminal, where the first feedback information is used to indicate whether the terminal has correctly received the first DCI or the first MAC CE.

[0262] As an optional embodiment of the present application, the device further includes:

[0263] A first resource determining module is configured to determine an uplink resource for the first feedback information according to a first method, wherein the first method includes at least one of the following:

[0264] Determining, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, an uplink resource of the first feedback information;

[0265] Determining, according to the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information;

[0266] According to the transmission time of the first DCI or the first MAC CE and the preset timing relationship, an uplink resource that satisfies the preset timing relationship with the transmission time of the first DCI or the first MAC CE is determined as the uplink resource of the first feedback information.

[0267] As an optional embodiment of the present application, when the first DCI is also used to schedule a physical downlink shared channel PDSCH, the apparatus further includes:

[0268] A second feedback receiving module, configured to receive feedback information of the PDSCH;

[0269] The first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information; or the first feedback information and the PDSCH feedback information are separately indicated in the second target feedback information.

[0270] As an optional embodiment of the present application, when the first DCI is also used to schedule a physical uplink shared channel PUSCH,

[0271] The uplink resource where the first feedback information is located includes at least one of the following:

[0272] A PUSCH scheduled by the first DCI;

[0273] A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID;

[0274] The first available uplink resource after the PUSCH scheduled by the first DCI;

[0275] The first available uplink resource after the first DCI.

[0276] As an optional embodiment of the present application, the device further includes at least one of the following:

[0277] a first processing module, configured to, when the first feedback information is a confirmation response, use the common beam information for a channel or a reference signal corresponding to the common beam information after a first preset time period from a transmission moment of the first feedback information;

[0278] The second processing module is used to, when the first DCI is also used to schedule the physical uplink shared channel PUSCH, use the common beam information for the channel or reference signal corresponding to the common beam information after a second preset time period from the transmission moment of the second DCI; wherein the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number.

[0279] As an optional embodiment of the present application, if the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the apparatus further includes:

[0280] A first transmission module is configured to use first default beam information to transmit a channel or reference signal scheduled by a third DCI; wherein the first default beam information includes:

[0281] Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or

[0282] Beam information of the control resource set with the smallest ID.

[0283] As an optional embodiment of the present application, if the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the apparatus further includes:

[0284] A second transmission module, configured to use second default beam information to transmit a channel or reference signal scheduled by a fourth DCI; wherein the second default beam information includes:

[0285] beam information corresponding to the transmission time of the fourth DCI;

[0286] Beam information of the control resource set with the smallest ID;

[0287] Common beam information indicated by the first DCI or the first MAC CE.

[0288] As an optional embodiment of the present application, the device further includes:

[0289] A third transmission module is configured to, when the first feedback information is a confirmation response, use the common beam information to transmit a corresponding channel or reference signal;

[0290] Alternatively, it is used to resend the first DCI or the first MAC CE indicating at least one common beam information when the first feedback information is a negative response.

[0291] As an optional embodiment of the present application, the device further includes:

[0292] The fourth transmission module is used to resend the first DCI or the first MAC CE indicating at least one common beam information if the network side device does not receive the feedback information of the first DCI or the first MAC CE.

[0293] As an optional embodiment of the present application, when the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information:

[0294] If the first target feedback information is a positive response, the first feedback information and the PDSCH feedback information are both positive responses;

[0295] or,

[0296] If the first target feedback information is a negative acknowledgement, at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement.

[0297] As an optional embodiment of the present application, when the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information:

[0298] The second target feedback information further includes: first indication information, where the first indication information is used to indicate whether the second target feedback information includes the first feedback information or the feedback information of the PDSCH;

[0299] The second target feedback information further includes: second indication information, where the second indication information is used to indicate an arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information;

[0300] or,

[0301] Indicating that the second target feedback information includes the first feedback information or the PDSCH feedback information by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method used respectively by the first feedback information and the PDSCH feedback information;

[0302] or,

[0303] In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule;

[0304] or,

[0305] In the second target feedback information, the first feedback information and the PDSCH feedback information are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the PDSCH feedback information included in the second target feedback information.

[0306] As an optional embodiment of the present application, the first feedback receiving module includes:

[0307] A first feedback receiving submodule, configured to receive first feedback information sent by the terminal using current beam information until the common beam information can be used;

[0308] Alternatively, it is used to receive first feedback information sent by the terminal using the common beam information.

[0309] As an optional embodiment of the present application, if the first DCI is also used to schedule the PDSCH, the apparatus further includes:

[0310] a fifth transmission module, configured to resend a first DCI indicating at least one common beam information;

[0311] Alternatively, the device is used to resend the PDSCH until the number of times that no feedback information of the PDSCH is received or the number of times that negative response feedback information of the PDSCH is received reaches a first preset number, and the first DCI indicating at least one common beam information is resent.

[0312] As an optional embodiment of the present application, if the first DCI is also used to schedule a PUSCH, the apparatus further includes:

[0313] The sixth transmission module is used to resend the first DCI indicating at least one common beam information if the PUSCH scheduled by the first DCI is not received, or the first feedback information is not received on the uplink resource where the first feedback information is located, or the first feedback information of a negative acknowledgement is received.

[0314] In an embodiment of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism for the common beam information and a scheme for the effective time are provided to ensure the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance.

[0315] It should be noted that the beam indication device provided in the embodiment of the present application is a device capable of executing the above-mentioned beam indication method. All embodiments of the above-mentioned beam indication method are applicable to the device and can achieve the same or similar beneficial effects.

[0316] like Figure 5 As shown, the embodiment of the present application further provides a beam indication device 500, which is applied to a terminal and includes:

[0317] The receiving module 501 is configured to receive first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0318] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0319] As an optional embodiment of the present application, the common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following:

[0320] The first type controls the resource set;

[0321] A first type of control resource set and a channel or reference signal associated with the first type of control resource set.

[0322] As an optional embodiment of the present application, the channel or reference signal associated with the first-type control resource set includes at least one of the following:

[0323] The first type controls the DCI-scheduled channels or reference signals on the resource set;

[0324] The first type of control resource set corresponds to the feedback channel scheduled by the DCI.

[0325] As an optional embodiment of the present application, the control resource set where the first DCI is located belongs to the first type of control resource set.

[0326] As an optional embodiment of the present application, the receiving module includes:

[0327] a first receiving submodule, configured to determine, according to an indication of a second MAC CE or a DCI preceding the first DCI, beam information of a second type of control resource set, or determine target beam information, where the target beam information is beam information of the second type of control resource set and a channel or reference signal associated with the second type of control resource set;

[0328] A downlink control channel is received on the second-type control resource set, where the downlink control channel includes the first DCI.

[0329] As an optional embodiment of the present application, the device further includes:

[0330] The first feedback sending module is used to send first feedback information to the network side device, where the first feedback information is used to indicate whether the terminal has correctly received the first DCI or the first MAC CE.

[0331] As an optional embodiment of the present application, the device further includes:

[0332] The second resource determination module is configured to determine the uplink resource of the first feedback information according to a first method, wherein the first method includes at least one of the following:

[0333] Determining, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, an uplink resource of the first feedback information;

[0334] Determining, according to the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information;

[0335] According to the transmission time of the first DCI or the first MAC CE and the preset timing relationship, an uplink resource that satisfies the preset timing relationship with the transmission time of the first DCI or the first MAC CE is determined as the uplink resource of the first feedback information.

[0336] As an optional embodiment of the present application, when the first DCI is also used to schedule a physical downlink shared channel PDSCH, the apparatus further includes:

[0337] A second feedback sending module, configured to send feedback information of the PDSCH;

[0338] The first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information; or the first feedback information and the PDSCH feedback information are separately indicated in the second target feedback information.

[0339] As an optional embodiment of the present application, when the first DCI is also used to schedule a physical uplink shared channel PUSCH,

[0340] The uplink resource where the first feedback information is located includes at least one of the following:

[0341] A PUSCH scheduled by the first DCI;

[0342] A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID;

[0343] The first available uplink resource after the PUSCH scheduled by the first DCI;

[0344] The first available uplink resource after the first DCI.

[0345] As an optional embodiment of the present application, the device further includes at least one of the following:

[0346] a third processing module, configured to, when the first feedback information is a confirmation response, use the common beam information for the channel or reference signal corresponding to the common beam information after a first preset time period from the transmission time of the first feedback information;

[0347] The fourth processing module is used to, when the first DCI is also used to schedule the physical uplink shared channel PUSCH, use the common beam information for the channel or reference signal corresponding to the common beam information after a second preset time period from the transmission moment of the second DCI; wherein the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number.

[0348] As an optional embodiment of the present application, if the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the apparatus further includes:

[0349] a tenth transmission module, configured to use the first default beam information to transmit the channel or reference signal scheduled by the third DCI; wherein the first default beam information includes:

[0350] Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or

[0351] Beam information of the control resource set with the smallest ID.

[0352] As an optional embodiment of the present application, if the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the apparatus further includes:

[0353] An eleventh transmission module, configured to use the second default beam information to transmit the channel or reference signal scheduled by the fourth DCI; wherein the second default beam information includes:

[0354] beam information corresponding to the transmission time of the fourth DCI;

[0355] Beam information of the control resource set with the smallest ID;

[0356] Common beam information indicated by the first DCI or the first MAC CE.

[0357] As an optional embodiment of the present application, the device further includes:

[0358] A twelfth transmission module, configured to, when the first feedback information is a confirmation response, use the common beam information to transmit a corresponding channel or reference signal, or re-receive a first DCI or a first MAC CE indicating at least one common beam information;

[0359] Alternatively, it is used to re-receive the first DCI or the first MAC CE indicating at least one common beam information when the first feedback information is a negative response.

[0360] As an optional embodiment of the present application, when the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information,

[0361] If both the first feedback information and the PDSCH feedback information are positive responses, the first target feedback information is a positive response;

[0362] or,

[0363] If at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement, the first target feedback information is a negative acknowledgement.

[0364] As an optional embodiment of the present application, when the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information:

[0365] The second target feedback information further includes: first indication information, where the first indication information is used to indicate whether the second target feedback information includes the first feedback information or the feedback information of the PDSCH;

[0366] The second target feedback information further includes: second indication information, where the second indication information is used to indicate an arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information;

[0367] or,

[0368] Indicating that the second target feedback information includes the first feedback information or the PDSCH feedback information by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method used respectively by the first feedback information and the PDSCH feedback information;

[0369] or,

[0370] In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule;

[0371] or,

[0372] In the second target feedback information, the first feedback information and the PDSCH feedback information are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the PDSCH feedback information included in the second target feedback information.

[0373] As an optional embodiment of the present application, the first feedback sending module includes:

[0374] a first feedback sending submodule, configured to send the first feedback information using current beam information until the common beam information can be used;

[0375] Alternatively, it is configured to send the first feedback information using the common beam information.

[0376] As an optional embodiment of the present application, if the first DCI is also used to schedule the PDSCH, the apparatus further includes:

[0377] A fourteenth transmission module, configured to re-receive a first DCI indicating at least one common beam information;

[0378] Alternatively, it is used to re-receive PDSCH until the number of times that feedback information of PDSCH is not sent or feedback information of negative response of PDSCH is sent reaches a first preset number, and re-receive the first DCI indicating at least one common beam information.

[0379] As an optional embodiment of the present application, if the first DCI is also used to schedule a PUSCH, the apparatus further includes:

[0380] The fifteenth transmission module is used to re-receive the first DCI indicating at least one common beam information if the terminal fails to correctly receive the first DCI, or the terminal fails to send the first feedback information on the uplink resource where the first feedback information is located, or the terminal sends the first feedback information of a negative acknowledgement.

[0381] In an embodiment of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism for the common beam information and a scheme for the effective time are provided to ensure the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance.

[0382] It should be noted that the beam indication device provided in the embodiment of the present application is a device capable of executing the above-mentioned beam indication method. All embodiments of the above-mentioned beam indication method are applicable to the device and can achieve the same or similar beneficial effects.

[0383] The beam pointing device in the embodiments of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. For example, the mobile electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. The non-mobile electronic device can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc., and the embodiments of the present application do not specifically limit this.

[0384] The beam pointing device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0385] The beam pointing device provided in the embodiment of the present application can achieve Figure 2 or Figure 3 To avoid repetition, the various processes implemented in the method embodiment are not described here.

[0386] Optional, such as Figure 6As shown, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement the various processes of the above-mentioned beam indication method embodiment and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instruction is executed by the processor 601 to implement the various processes of the above-mentioned beam indication method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0387] Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0388] The terminal 700 includes but is not limited to components such as a radio frequency unit 701 , a network module 702 , an audio output unit 703 , an input unit 704 , a sensor 705 , a display unit 706 , a user input unit 707 , an interface unit 708 , a memory 709 , and a processor 710 .

[0389] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0390] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0391] In this embodiment of the present application, the radio frequency unit 701 receives downlink data from the network-side device and transmits it to the processor 710 for processing. Furthermore, the radio frequency unit 701 transmits uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0392] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0393] Processor 710 may include one or more processing units. Optionally, processor 710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0394] The radio frequency unit 701 is configured to receive first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information;

[0395] The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal.

[0396] In an embodiment of the present application, the common beam information of the channel and / or reference signal is indicated by DCI or MAC CE, thereby reducing the signaling overhead of beam indication; and a feedback mechanism for the common beam information and a scheme for the effective time are provided to ensure the robustness of the beam indication method and the consistent understanding of the effectiveness of the beam between the network and the terminal, thereby improving system performance.

[0397] It should be noted that the terminal provided in the embodiment of the present application is a terminal capable of executing the above-mentioned beam indication method, then all embodiments of the above-mentioned beam indication method are applicable to the terminal and can achieve the same or similar beneficial effects.

[0398] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, network device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. Antenna 81 is connected to radio frequency device 82. In the uplink direction, radio frequency device 82 receives information via antenna 81 and sends the received information to baseband device 83 for processing. In the downlink direction, baseband device 83 processes the information to be transmitted and sends it to radio frequency device 82. Radio frequency device 82 processes the received information and then sends it through antenna 81.

[0399] The frequency band processing device may be located in the baseband device 83 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 . The baseband device 83 includes a processor 84 and a memory 85 .

[0400] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a processor 84, which is connected to a memory 85 to call a program in the memory 85 and execute the network device operations shown in the above method embodiment.

[0401] The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82 . The interface may be, for example, a common public radio interface (CPRI).

[0402] Specifically, the network side device of the embodiment of the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 8 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0403] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned beam indication method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

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

[0405] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned beam indication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0406] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0407] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0408] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0409] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

[0410] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A beam indication method, applied to a network-side device, characterized in that: include: Sending first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information; The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal; The common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following: The first type controls the resource set; A first type of control resource set and a channel or reference signal associated with the first type of control resource set; The method further comprises: The beam information of the second type of control resource set is indicated by the second MAC CE.

2. The method according to claim 1, characterized in that The channel or reference signal associated with the first type of control resource set includes at least one of the following: The first type controls the DCI-scheduled channels or reference signals on the resource set; The first type of control resource set corresponds to the feedback channel scheduled by the DCI.

3. The method according to claim 1, characterized in that The control resource set where the first DCI is located belongs to the first type of control resource set.

4. The method according to claim 1, wherein The sending of first downlink control information DCI includes: Sending a downlink control channel on a second type of control resource set, where the downlink control channel includes the first DCI; The target beam information is indicated by a DCI before the first DCI, and the target beam information is the beam information of the second type of control resource set and the channel or reference signal associated with the second type of control resource set.

5. The method according to claim 1, wherein Before sending the first downlink control information DCI or the first media access control layer control element MAC CE, the method further includes: Determining the common beam information from multiple beam information configured by radio resource control RRC signaling; or, The common beam information is determined from multiple beam information activated by the third MAC CE.

6. The method according to claim 1, characterized in that Sending first downlink control information DCI or a first media access control layer control element MAC CE includes: If the quantity of the at least one common beam information satisfies the first condition, a first DCI is sent; otherwise, a first MAC CE is sent.

7. The method according to claim 1, characterized in that After sending the first downlink control information DCI or the first media access control layer control element MAC CE, the method further includes: The first feedback information sent by the receiving terminal is used to indicate whether the terminal has correctly received the first DCI or the first MAC CE.

8. The method according to claim 7, characterized in that The method further comprises: An uplink resource of the first feedback information is determined according to a first manner, wherein the first manner includes at least one of the following: Determining, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, an uplink resource of the first feedback information; Determining, according to the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information; According to the transmission time of the first DCI or the first MAC CE and the preset timing relationship, an uplink resource that satisfies the preset timing relationship with the transmission time of the first DCI or the first MAC CE is determined as the uplink resource of the first feedback information.

9. The method according to claim 7, characterized in that In a case where the first DCI is also used to schedule a physical downlink shared channel PDSCH, the method further includes: Receive PDSCH feedback information; The first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information; or the first feedback information and the PDSCH feedback information are separately indicated in the second target feedback information.

10. The method according to claim 7, characterized in that In the case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, The uplink resource where the first feedback information is located includes at least one of the following: A PUSCH scheduled by the first DCI; A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID; The first available uplink resource after the PUSCH scheduled by the first DCI; The first available uplink resource after the first DCI.

11. The method according to claim 7, characterized in that The method further comprises at least one of the following: When the first feedback information is a confirmation response, after a first preset time period from the transmission time of the first feedback information, the channel or reference signal corresponding to the common beam information uses the common beam information; In the case where the first DCI is also used to schedule the physical uplink shared channel PUSCH, after a second preset time period from the transmission moment of the second DCI, the channel or reference signal corresponding to the common beam information uses the common beam information; wherein, the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number.

12. The method according to claim 11, characterized in that If the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the method further includes: Use first default beam information to transmit a channel or reference signal scheduled by a third DCI; wherein the first default beam information includes: Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or Beam information of the control resource set with the smallest ID.

13. The method according to claim 11, characterized in that If the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the method further includes: Use the second default beam information to transmit the channel or reference signal scheduled by the fourth DCI; wherein the second default beam information includes: beam information corresponding to the transmission time of the fourth DCI; Beam information of the control resource set with the smallest ID; Common beam information indicated by the first DCI or the first MAC CE.

14. The method according to claim 7, wherein: The method further comprises: When the first feedback information is a confirmation response, use the common beam information to transmit a corresponding channel or reference signal; or, In a case where the first feedback information is a negative response, the first DCI or the first MAC CE indicating at least one common beam information is resent.

15. The method according to claim 1, wherein The method further comprises: If the network side device does not receive feedback information of the first DCI or the first MAC CE, it resends the first DCI or the first MAC CE indicating at least one common beam information.

16. The method according to claim 9, characterized in that When the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information: If the first target feedback information is a positive response, the first feedback information and the PDSCH feedback information are both positive responses; or, If the first target feedback information is a negative acknowledgement, at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement.

17. The method according to claim 9, characterized in that When the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information: The second target feedback information further includes: first indication information, where the first indication information is used to indicate whether the second target feedback information includes the first feedback information or the feedback information of the PDSCH; The second target feedback information further includes: second indication information, where the second indication information is used to indicate an arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information; or, Indicating that the second target feedback information includes the first feedback information or the PDSCH feedback information by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method used respectively by the first feedback information and the PDSCH feedback information; or, In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule; or, In the second target feedback information, the first feedback information and the PDSCH feedback information are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the PDSCH feedback information included in the second target feedback information.

18. The method according to claim 7, characterized in that The first feedback information sent by the receiving terminal includes: receiving first feedback information sent by the terminal using current beam information until the common beam information can be used; or, The receiving terminal sends first feedback information using the common beam information.

19. The method according to claim 1, wherein If the first DCI is also used to schedule the PDSCH, the method further includes: resending a first DCI indicating at least one common beam information; or, The PDSCH is resent until the number of times that no feedback information of the PDSCH is received or negative response feedback information of the PDSCH is received reaches a first preset number, and the first DCI indicating at least one common beam information is resent.

20. The method according to claim 10, wherein If the first DCI is also used to schedule a PUSCH, the method further includes: If the PUSCH scheduled by the first DCI is not received, or the first feedback information is not received on the uplink resource where the first feedback information is located, or the first feedback information of a negative acknowledgement is received, the first DCI indicating at least one common beam information is resent.

21. A beam indication method, applied to a terminal, characterized in that: include: receiving first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information; The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal; The common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following: The first type controls the resource set; A first type of control resource set and a channel or reference signal associated with the first type of control resource set; The method further comprises: According to the second MAC CE, beam information of the second type of control resource set is determined.

22. The method according to claim 21, characterized in that The channel or reference signal associated with the first type of control resource set includes at least one of the following: The first type controls the DCI-scheduled channels or reference signals on the resource set; The first type of control resource set corresponds to the feedback channel scheduled by the DCI.

23. The method according to claim 21, characterized in that The control resource set where the first DCI is located belongs to the first type of control resource set.

24. The method according to claim 21, characterized in that Receiving first downlink control information DCI, including: Determining target beam information according to an indication of a DCI preceding the first DCI, where the target beam information is beam information of a second type of control resource set and a channel or reference signal associated with the second type of control resource set; A downlink control channel is received on the second-type control resource set, where the downlink control channel includes the first DCI.

25. The method according to claim 21, wherein After receiving the first downlink control information DCI or the first media access control layer control element MAC CE, the method further includes: Send first feedback information to the network side device, where the first feedback information is used to indicate whether the terminal correctly receives the first DCI or the first MAC CE.

26. The method according to claim 25, characterized in that The method further comprises: An uplink resource of the first feedback information is determined according to a first manner, wherein the first manner includes at least one of the following: Determining, according to the uplink resource of the first feedback information indicated in the first DCI or the first MAC CE, an uplink resource of the first feedback information; Determining, according to the downlink resource where the first DCI or the first MAC CE is located and the association relationship between the uplink and downlink resources, the uplink resource associated with the downlink resource where the first DCI or the first MAC CE is located as the uplink resource of the first feedback information; According to the transmission time of the first DCI or the first MAC CE and the preset timing relationship, an uplink resource that satisfies the preset timing relationship with the transmission time of the first DCI or the first MAC CE is determined as the uplink resource of the first feedback information.

27. The method according to claim 25, characterized in that In a case where the first DCI is also used to schedule a physical downlink shared channel PDSCH, the method further includes: Send PDSCH feedback information; The first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information; or the first feedback information and the PDSCH feedback information are separately indicated in the second target feedback information.

28. The method according to claim 25, characterized in that In the case where the first DCI is also used to schedule a physical uplink shared channel PUSCH, The uplink resource where the first feedback information is located includes at least one of the following: A PUSCH scheduled by the first DCI; A PUSCH scheduled by the second DCI, where the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI use the same HARQ process ID; The first available uplink resource after the PUSCH scheduled by the first DCI; The first available uplink resource after the first DCI.

29. The method according to claim 25, characterized in that The method further comprises at least one of the following: When the first feedback information is a confirmation response, after a first preset time period from the transmission time of the first feedback information, the channel or reference signal corresponding to the common beam information uses the common beam information; In the case where the first DCI is also used to schedule the physical uplink shared channel PUSCH, after a second preset time period from the transmission moment of the second DCI, the channel or reference signal corresponding to the common beam information uses the common beam information; wherein, the PUSCH scheduled by the second DCI and the PUSCH scheduled by the first DCI have the same hybrid automatic repeat request HARQ process number.

30. The method according to claim 29, wherein If the transmission time of the channel or reference signal scheduled by the third DCI is before the common beam information can be used, the method further includes: Use first default beam information to transmit a channel or reference signal scheduled by a third DCI; wherein the first default beam information includes: Beam information corresponding to the transmission time of the channel or reference signal scheduled by the third DCI; or Beam information of the control resource set with the smallest ID.

31. The method according to claim 29, wherein If the transmission time of the fourth DCI is before the common beam information can be used, and the transmission time of the channel or reference signal scheduled by the fourth DCI is after the common beam information can be used, the method further includes: Use the second default beam information to transmit the channel or reference signal scheduled by the fourth DCI; wherein the second default beam information includes: beam information corresponding to the transmission time of the fourth DCI; Beam information of the control resource set with the smallest ID; Common beam information indicated by the first DCI or the first MAC CE.

32. The method according to claim 25, wherein The method further comprises: When the first feedback information is a confirmation response, use the common beam information to transmit a corresponding channel or reference signal, or re-receive a first DCI or a first MAC CE indicating at least one common beam information; or, In a case where the first feedback information is a negative response, a first DCI or a first MAC CE indicating at least one common beam information is re-received.

33. The method according to claim 27, wherein When the first feedback information and the PDSCH feedback information are jointly indicated in the first target feedback information, If both the first feedback information and the PDSCH feedback information are positive responses, the first target feedback information is a positive response; or, If at least one of the first feedback information and the PDSCH feedback information is a negative acknowledgement, the first target feedback information is a negative acknowledgement.

34. The method according to claim 27, wherein When the first feedback information and the PDSCH feedback information are respectively indicated in the second target feedback information: The second target feedback information further includes: first indication information, where the first indication information is used to indicate whether the second target feedback information includes the first feedback information or the feedback information of the PDSCH; The second target feedback information further includes: second indication information, where the second indication information is used to indicate an arrangement order or position information of the first feedback information and the PDSCH feedback information in the second target feedback information; or, Indicating that the second target feedback information includes the first feedback information or the PDSCH feedback information by at least one of the uplink resources, timing information, scrambling method, time-frequency domain offset, and code division method used respectively by the first feedback information and the PDSCH feedback information; or, In the second target feedback information, the first feedback information and the PDSCH feedback information are independently encoded and arranged according to a preset rule; or, In the second target feedback information, the first feedback information and the PDSCH feedback information are jointly encoded, wherein a decoding result of the joint encoding can indicate the first feedback information and the PDSCH feedback information included in the second target feedback information.

35. The method according to claim 25, wherein Sending first feedback information to the network side device includes: Sending the first feedback information using current beam information until the common beam information can be used; or, The first feedback information is sent using the common beam information.

36. The method according to claim 21, wherein If the first DCI is also used to schedule the PDSCH, the method further includes: Re-receiving a first DCI indicating at least one common beam information; or, The PDSCH is re-received until the number of times that the feedback information of the PDSCH is not sent or the feedback information of the negative response of the PDSCH is sent reaches a first preset number, and the first DCI indicating at least one common beam information is re-received.

37. The method according to claim 28, wherein If the first DCI is also used to schedule a PUSCH, the method further includes: If the terminal does not correctly receive the first DCI, or the terminal does not send the first feedback information on the uplink resource where the first feedback information is located, or the terminal sends the first feedback information of a negative acknowledgement, the first DCI indicating at least one common beam information is received again.

38. A beam pointing device, applied to a network side device, characterized in that: include: a sending module, configured to send first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information; The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal; The common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following: The first type controls the resource set; A first type of control resource set and a channel or reference signal associated with the first type of control resource set; Wherein, the device further includes: An indication module is used to indicate the beam information of the second type of control resource set through a second MAC CE.

39. A network side device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the beam indication method according to any one of claims 1 to 20.

40. A beam pointing device, applied to a terminal, characterized in that: include: A receiving module, configured to receive first downlink control information DCI or a first media access control layer control element MAC CE, where the first DCI or the first MAC CE is used to indicate at least one common beam information; The common beam information corresponds to at least two channels, or the common beam information corresponds to at least two reference signals, or the common beam information corresponds to at least one channel and at least one reference signal; The common beam information indicated by the first DCI or the first MAC CE is applicable to any of the following: The first type controls the resource set; A first type of control resource set and a channel or reference signal associated with the first type of control resource set; Wherein, the device further includes: The determination module is used to determine the beam information of the second type of control resource set according to the second MAC CE.

41. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the beam indication method according to any one of claims 21 to 37.

42. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the beam indication method as described in any one of claims 1 to 20 are implemented; or, when the program or instruction is executed by the processor, the steps of the beam indication method as described in any one of claims 21 to 37 are implemented.

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