PUCCH transmission method, device, equipment and storage medium

Abstract

The present invention discloses a PUCCH transmission method, device, equipment and storage medium. The method includes: determining the spatial relationship of PUCCH; sending PUCCH based on the determined spatial relationship of PUCCH; wherein the determination of the spatial relationship of PUCCH includes one of the following: determining the spatial relationship of PUCCH based on the first indication information carried in the downlink control information (DCI); determining at least one spatial relationship of PUCCH based on the configured second indication information; determining the spatial relationship of PUCCH based on the latest indication information in the received indication information, the received indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI that schedules PUSCH.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a PUCCH (Physical Uplink Control Channel) transmission method, device, equipment and storage medium. Background Art

[0002] During the uplink transmission process, the uplink control information (UCI) and other information sent by the terminal to the base station can be carried on the physical uplink control channel (PUCCH). If beamforming technology is used in the uplink transmission process, the base station needs to configure the beam indication information of PUCCH for the terminal. At present, the base station usually indicates the beam indication information of PUCCH by indicating the index of a specific reference signal resource. Among them, the specific reference signal can include at least one of a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), and a sounding reference signal (SRS).

[0003] For example, the base station can configure M candidate information items to the terminal through radio resource control (RRC) signaling, each information item is used to indicate a beam indication information; M≥2, M is an integer. Then, the base station activates one of the M candidate information items through MAC control element (MAC-CE) signaling, and the information item is used to indicate the beam indication information configured by the base station for the PUCCH. MAC is the abbreviation of medium access control.

[0004] However, in high frequency band (FR2) application scenarios, on the one hand, the signal path loss is particularly large, so both PUCCH and Physical Uplink Shared Channel (PUSCH) need to use narrow beams; on the other hand, high frequency signals are more easily blocked, so it is more desirable to dynamically adjust the UL (uplink) beam direction to meet the needs of rapid channel changes in high frequency band application scenarios. Summary of the invention

[0005] In view of this, the embodiments of the present invention provide a PUCCH transmission method, apparatus, device and storage medium, aiming to enhance the flexibility of PUCCH beam direction adjustment and meet the demand for rapid channel change in high frequency band application scenarios.

[0006] The technical solution of the embodiment of the present invention is achieved as follows:

[0007] An embodiment of the present invention provides a PUCCH sending method, which is applied to a terminal. The method includes:

[0008] Determine the spatial relationship of PUCCH;

[0009] Sending the PUCCH based on the determined spatial relationship of the PUCCH;

[0010] The determining of the spatial relationship of the PUCCH includes one of the following:

[0011] Determine a spatial relationship of the PUCCH based on first indication information carried in downlink control information (DCI);

[0012] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0013] Determine the spatial relationship of the PUCCH based on the latest indication information in the received indication information, the received indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI scheduling the PUSCH

[0014] An embodiment of the present invention further provides a PUCCH receiving method, which is applied to a base station. The method includes:

[0015] Determine the spatial relationship of PUCCH;

[0016] receiving the PUCCH based on the determined spatial relationship of the PUCCH;

[0017] The determining of the spatial relationship of the PUCCH includes one of the following:

[0018] Determine the spatial relationship of the PUCCH based on the first indication information sent, where the first indication information is carried by the DCI;

[0019] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0020] The spatial relationship of PUCCH is determined based on the latest indication information in the sent indication information, and the sent indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0021] The embodiment of the present invention further provides a PUCCH sending device, which is applied to a terminal, including:

[0022] A first determining module, configured to determine a spatial relationship of a PUCCH;

[0023] A sending module, configured to send a PUCCH based on the determined spatial relationship of the PUCCH;

[0024] The first determining module is specifically used for one of the following:

[0025] Determine a spatial relationship of the PUCCH based on the first indication information carried in the DCI;

[0026] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0027] The spatial relationship of PUCCH is determined based on the latest indication information in the received indication information, and the received indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0028] The embodiment of the present invention further provides a PUCCH receiving device, which is applied to a base station, including:

[0029] A second determination module is used to determine the spatial relationship of the PUCCH;

[0030] A receiving module, configured to receive the PUCCH based on the determined spatial relationship of the PUCCH;

[0031] The second determining module is specifically used for one of the following:

[0032] Determine the spatial relationship of the PUCCH based on the first indication information sent, where the first indication information is carried by the DCI;

[0033] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0034] The spatial relationship of the PUCCH is determined based on the latest indication information in the sent indication information, and the sent indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI scheduling the PUSCH.

[0035] An embodiment of the present invention further provides a terminal, comprising: a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the method described in the terminal side of the embodiment of the present invention when running the computer program.

[0036] An embodiment of the present invention further provides a base station, comprising: a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the method described on the base station side of the embodiment of the present invention when running the computer program.

[0037] An embodiment of the present invention further provides a storage medium, on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps of any one of the methods described on the terminal side or the base station side of the embodiment of the present invention are implemented.

[0038] The technical solution provided by the embodiment of the present invention determines the spatial relationship of PUCCH, including one of the following: determining the spatial relationship of PUCCH based on the first indication information carried in the DCI; determining at least one spatial relationship of PUCCH based on the configured second indication information; determining the spatial relationship of PUCCH based on the latest indication information in the received indication information, the received indication information includes: third indication information and / or fourth indication information, wherein the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI that schedules PUSCH. Determining the spatial relationship of PUCCH in the above manner can improve the flexibility of PUCCH beam direction adjustment, and can meet the needs of rapid channel changes in high-frequency band application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a flow chart of a PUCCH sending method according to an embodiment of the present invention;

[0040] Figure 2 Schematic diagram of a PUCCH receiving method according to an embodiment of the present invention;

[0041] Figure 3 Schematic diagram of the process of the PUCCH transmission method according to an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of the structure of a PUCCH sending device according to an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of the structure of a PUCCH receiving device according to an embodiment of the present invention;

[0044] Figure 6 is a schematic diagram of the structure of a terminal according to an embodiment of the present invention;

[0045] Figure 7 The figure is a schematic diagram of the structure of a base station according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] In 5G and future wireless communication systems, beamforming technology is used to limit the energy of the transmitted signal to a certain beam direction, so as to effectively expand the transmission range of the wireless signal, reduce signal interference, thereby increasing communication efficiency, and obtaining higher network capacity. The wireless communication system includes a base station and a terminal. When the terminal sends PUCCH to the base station, it needs to send PUCCH based on the spatial relationship of PUCCH, and the base station also needs to receive PUCCH based on the spatial relationship of PUCCH to achieve beam alignment. In related technologies, different methods are often used to indicate the spatial relationship (spatial relation) between PUSCH and PUCCH. For PUSCH, in non-codebook mode, the network configures an SRS-ResourceSet (SRS resource set) for the UE (ie, terminal) through RRC signaling. Each SRS-ResourceSet can include 4 SRS resources. The network uses the SRI field in DCI format 0_1 ​​or 0_2 to indicate that the most recent SRS resource with the SRI (SRS Resource Indicator) flag before the UL grant (uplink scheduling permission) DCI is used to determine the precoding and transmission rank of the scheduled PUSCH. That is, the spatial relationship of the PUSCH is associated with the SRS resource, and the SRI indication method is first configured through RRC and then dynamically indicated by DCI.

[0049] For PUCCH, the spatial relationship of PUCCH is indicated by PUCCH-SpatialRelationInfo (PUCCH spatial relationship information), where RRC configures a maximum of 8 PUCCH-SpatialRelationInfo, and then activates one PUCCH-SpatialRelationInfo through MAC-CE to determine the spatial relationship of PUCCH. PUCCH-SpatialRelationInfo can be associated with SSB, CSI-RS, or SRS.

[0050] Comparing the spatial relationship determination methods of PUSCH and PUCCH, we can find that:

[0051] 1. The spatial relationship of PUSCH is only associated with SRS, and RRC configuration + DCI indication is the most flexible;

[0052] 2. The spatial relationship of PUCCH can be associated with SSB, CSI-RS or SRS, activated by RRC+MAC-CE, and has the second highest flexibility;

[0053] 3. The spatial relationship between PUSCH and PUCCH is independently configured and unrelated to each other.

[0054] Obviously, the flexibility of the configuration of the spatial relationship of PUCCH needs to be enhanced, especially in high-frequency band application scenarios. Since the signal path loss is particularly large and high-frequency signals are more easily blocked, it is more desirable to dynamically adjust the beam direction of PUCCH to meet the needs of rapid channel changes in high-frequency band application scenarios.

[0055] Based on this, in various embodiments of the present invention, the terminal determines the spatial relationship of PUCCH, including one of the following: determining the spatial relationship of PUCCH based on the first indication information carried in the DCI; determining at least one spatial relationship of PUCCH based on the configured second indication information; determining the spatial relationship of PUCCH based on the latest indication information in the received indication information, the received indication information including: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI that schedules the physical PUSCH.

[0056] Accordingly, the base station determines the spatial relationship of PUCCH, including one of the following: determining the spatial relationship of PUCCH based on first indication information sent, the first indication information is sent by DCI; determining at least one spatial relationship of PUCCH based on the configured second indication information; determining the spatial relationship of PUCCH based on the latest indication information in the sent indication information, the sent indication information includes: third indication information and / or fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0057] In various embodiments of the present invention, by determining the spatial relationship of PUCCH in the above manner, the flexibility of PUCCH beam direction adjustment can be improved, and the demand for rapid channel change in high frequency band application scenarios can be met.

[0058] The embodiment of the present invention provides a PUCCH transmission method, which is applied to a terminal, such as Figure 1 As shown, the method includes:

[0059] Step 101, determining the spatial relationship of PUCCH;

[0060] Step 102: Send the PUCCH based on the determined spatial relationship of the PUCCH.

[0061] In the embodiment of the present invention, determining the spatial relationship of the PUCCH includes the following three methods. In practical application, at least one of the following three methods may be used to determine the spatial relationship of the PUCCH:

[0062] The first method is to determine the spatial relationship of the PUCCH based on the first indication information carried in the DCI;

[0063] The second method is to determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0064] The third method is to determine the spatial relationship of PUCCH based on the latest indication information in the received indication information, and the received indication information includes: third indication information and / or fourth indication information, wherein the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0065] In the first way:

[0066] Determining the spatial relationship of the PUCCH based on the first indication information carried in the DCI includes one of the following:

[0067] Determine, according to the first indication information carried in the DCI for scheduling the PDSCH, a spatial relationship of the PUCCH carrying hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the PDSCH;

[0068] The spatial relationship of the PUCCH carrying the channel state information (CSI) report is determined according to the first indication information carried in the DCI carrying the CSI request information.

[0069] In practical applications, the functions of PUCCH may include at least one of the following: carrying HARQ-ACK information of PDSCH, carrying SR (scheduling request) information, and carrying CSI report. Among them, the HARQ-ACK information of PDSCH includes the HARQ-ACK information corresponding to the DCI-scheduled PDSCH and the HARQ-ACK information corresponding to the semi-persistently scheduled PDSCH; the CSI report includes: periodic CSI report, semi-persistent CSI report and non-periodic CSI report.

[0070] In practical applications, for the PUCCH carrying the HARQ-ACK information of the PDSCH, the first indication information can be added to the DCI that schedules the corresponding PDSCH transmission, and the first indication information is used to indicate the spatial relationship of the PUCCH. Similarly, for the PUCCH carrying the non-periodic CSI report, the first indication information can be added to the DCI carrying the CSI request information, and the first indication information is used to indicate the spatial relationship of the PUCCH.

[0071] In the embodiment of the present invention, the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2.

[0072] In some embodiments, the first indication information is a sounding reference signal resource indication (SRS Resource Indicator, SRI); and determining the spatial relationship of the PUCCH based on the first indication information carried in the DCI includes:

[0073] The associated SRS resource is determined based on the SRI.

[0074] The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before the PDCCH carrying the SRI.

[0075] Accordingly, the sending of the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following:

[0076] Sending the PUCCH using the same spatial filter (spatial domain filter, or spatial filter, or spatial domain transmission filter) as the associated SRS resource;

[0077] Sending the PUCCH using the same quasi co-location (QCL) relationship as the associated SRS resource;

[0078] The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before a physical downlink control channel PDCCH that carries SRI.

[0079] Here, the QCL relationship includes at least: a QCL typeD relationship.

[0080] The first method carries the first indication information through DCI and determines the spatial relationship of PUCCH based on the first indication information. Compared with the method of using MAC-CE indication, the flexibility of PUCCH beam switching is enhanced.

[0081] In the second way:

[0082] In the embodiment of the present invention, the second indication information includes: a spatial relationship set between a repetition period and a PUCCH.

[0083] In actual applications, the terminal may receive high-level configuration information to obtain the second indication information. For example, the second indication information may be obtained through RRC signaling. Here, the repetition period may be a specified number of N time slots, where N is a positive integer; and the PUCCH spatial relationship set includes at least one candidate spatial relationship for PUCCH transmission.

[0084] In some embodiments, the determining, based on the configured second indication information, at least one spatial relationship of the PUCCH comprises one of the following:

[0085] For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship;

[0086] For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

[0087] Here, when the same spatial relationship is shared for each time slot in the repetition period, the terminal uses the same spatial relationship to send PUCCH in N time slots. When a different spatial relationship is selected from the spatial relationship set for each time slot in the repetition period, the terminal sends PUCCH in N time slots based on the spatial relationship corresponding to each time slot. In this way, transmission failure caused by blocking of high-frequency signals can be avoided, and the reliability of PUCCH transmission can be improved.

[0088] In some embodiments, the PUCCH transmission method further includes one of the following:

[0089] Determine, based on whether the second indication information carries the first field, for each time slot within the repetition period, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set;

[0090] Determine each time slot within the repetition period based on a state of the second field carried in the second indication information, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set.

[0091] In some embodiments, determining each time slot within the repetition period based on whether the second indication information carries the first field, selecting the same spatial relationship from the spatial relationship set or selecting a different spatial relationship from the spatial relationship set includes:

[0092] When the second indication information carries the first field, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set;

[0093] When the second indication information does not carry the first field, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set.

[0094] It can be understood that, in another embodiment, it can be determined that when the second indication information carries the first field, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set, and accordingly, when the second indication information does not carry the first field, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set. Here, the first field can be indicated by DCI and / or configured by a high layer. Specifically, the first field can be indicated by any method of DCI, RRC, or MAC-CE.

[0095] In some embodiments, determining each time slot within the repetition period based on a state of a second field carried in the second indication information, selecting the same spatial relationship from the spatial relationship set or selecting a different spatial relationship from the spatial relationship set includes:

[0096] When the second field carried by the second indication information is in the first state, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set;

[0097] When the second field carried by the second indication information is in the second state, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set.

[0098] Here, the first state and the second state are different states and can be distinguished based on different values ​​assigned to the second field.

[0099] Here, the second field may be indicated by DCI and / or configured by a higher layer. Specifically, the second field may be indicated by any one of DCI, RRC, or MAC-CE.

[0100] In some embodiments, for each time slot within the repetition period, selecting the same spatial relationship from the set of spatial relationships comprises:

[0101] For the first time slot in the repetition period, based on a preset rule or the received first configuration information, a spatial relationship corresponding to the PUCCH of the first time slot is determined, and the spatial relationship is allocated to other time slots in the repetition period.

[0102] Here, the preset rule may be to determine that the spatial relationship adopted by the first time slot is the first spatial relationship in the configured spatial relationship set. The first configuration information may be obtained based on high-level configuration information, for example, after receiving RRC signaling. The first configuration information is used to specify the spatial relationship corresponding to the first time slot, and the spatial relationship may be any spatial relationship in the spatial relationship set.

[0103] In actual applications, the high-level configuration information obtained by the terminal through RRC signaling may include first configuration information and second configuration information, wherein the second configuration information includes: a set of spatial relationships between the repetition period and PUCCH, and the first configuration information is used to specify the spatial relationship corresponding to the first time slot in the repetition period.

[0104] In some embodiments, for each time slot within the repetition period, selecting a different spatial relationship from the spatial relationship set to determine the spatial relationship of the PUCCH includes:

[0105] For a first time slot in the repetition period, determining a spatial relationship corresponding to a PUCCH of the first time slot based on a preset rule or the received first configuration information;

[0106] For other time slots in the repetition period, the spatial relationships corresponding to the PUCCHs of the other time slots are determined in sequence according to the order of the spatial relationships in the spatial relationship set.

[0107] In an application example, when the terminal determines that different spatial relationships are used to send PUCCH in N slots, the terminal can determine the spatial relationship used in the first slot based on a preset rule or first configuration information, and the terminal determines that the remaining slots in the N slots sequentially use the spatial relationship of the PUCCH spatial relationship information set. For example, the spatial relationship set of PUCCH includes 4 spatial relationships {A, B, C, D}, N = 6, and the spatial relationship used in the first slot is B, then the terminal determines that the spatial relationships of the 6 slots are {B, C, D, A, B, C} respectively.

[0108] Compared with the first method, the second method can be applied to all PUCCH transmission methods, and is not limited to the case where PUCCH carries non-periodic CSI reports or carries HARQ-ACK information corresponding to DCI-scheduled PDSCH. In addition, the second method does not need to increase DCI signaling overhead. The second method of PUCCH information sending method enhances the reliability of uplink transmission by using the transmission resource overhead of the uplink signal, has good robustness, and can improve the poor situation where the system cannot work due to relatively slow PUCCH beam selection. Therefore, it can be applied to scenarios with high reliability requirements.

[0109] In the third method:

[0110] The determining the spatial relationship of the PUCCH based on the latest indication information in the received indication information specifically includes:

[0111] Determine the effective time of the latest third indication information and / or fourth indication information in the received indication information, wherein the effective time of the latest third indication information and / or fourth indication information is in the same time slot as the PUCCH or is smaller than the time slot where the PUCCH is located;

[0112] Determine fifth indication information based on the latest third indication information and / or the effective time of the third indication information;

[0113] The spatial relationship of the PUCCH is determined based on the fifth indication information.

[0114] In some embodiments, the unit of the validity time of each indication information is a time slot or a symbol. Here, the fifth indication information can also be called valid indication information, reference indication information or target indication information, which is used to determine the spatial relationship of PUCCH.

[0115] In some embodiments, determining the effective time of the latest third indication information includes:

[0116] Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently sent PUCCH;

[0117] The most recently sent PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to the most recently received PDSCH carrying the third indication information.

[0118] In an application example, if the terminal sends a PUCCH in time slot k, the PUCCH carries HARQ-ACK information with an ACK value, and the HARQ-ACK information corresponds to a PDSCH indicating a PUCCH spatial relationship (PUCCH-SpatialRelationInfo), the terminal determines that the effective time of the PUCCH spatial relationship indication is time slot Wherein, X is an integer (for example, X=3), μ is the subcarrier spacing configuration (SCS configuration) of the PUCCH carrying HARQ-ACK information, is the number of time slots included in the subframe. In this embodiment, the third indication information is a PUCCH spatial relationship (PUCCH-SpatialRelationInfo) indication.

[0119] In some embodiments, determining the effective time of the latest fourth indication information includes:

[0120] The effective time of the latest fourth indication information is determined based on the time slot corresponding to the most recently received DCI scheduling PUSCH; wherein the DCI carries the fourth indication information.

[0121] In an application example, if the terminal receives a DCI format for scheduling PUSCH transmission in time slot n, and the DCI format includes an SRS resource indicator (SRI) field, the terminal determines that the effective time of the fourth indication information is time slot n+Δ. In some embodiments, Δ is a preset parameter or configured by a high layer, for example, Δ=0. In some other embodiments, Δ can be determined according to the terminal capability.

[0122] In some embodiments, the determining the fifth indication information based on the effective time of the latest third indication information and / or fourth indication information includes one of the following:

[0123] If the effective time of the latest third indication information is greater than the latest fourth indication time, determining the latest third indication information as the fifth indication information;

[0124] If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information;

[0125] If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

[0126] In an application example, the effective time M1 of the latest third indication information is determined; the effective time M2 of the latest fourth indication information is determined; wherein M1 and M2 are both before the transmission time of the PUCCH with the spatial relationship to be determined, or are in the same time slot as the PUCCH with the spatial relationship to be determined.

[0127] Then determine the spatial relationship of PUCCH, including:

[0128] If M1>M2, the spatial relationship of the PUCCH is determined according to the latest third indication information;

[0129] If M2>M1, the spatial relationship of the PUCCH is determined according to the latest fourth indication information;

[0130] If M1=M2, the spatial relationship of the PUCCH is determined according to the latest third indication information; or, the spatial relationship of the PUCCH is determined according to the latest fourth indication information.

[0131] In one embodiment, the fifth indication information is the latest third indication information, and sending the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following:

[0132] If the latest third indication information provides a synchronization signal block indication (SSB Index), the PUCCH is sent using the same spatial filter as that used to receive the synchronization signal and broadcast channel block (SS / PBCH Block) with SSB Index;

[0133] If the latest third indication information provides a channel state information reference signal indication (CSI-RS Index), the PUCCH is sent using the same spatial filter as that used to receive the CSI-RS resource having the CSI-RS Index;

[0134] If the latest third indication information provides SRS, the PUCCH is sent using the same spatial filter as that used to send the SRS resource.

[0135] In some embodiments, the terminal obtains PUCCH-SpatialRelationInfo according to PUCCH-SpatialRelationInfo carried by PDSCH. The third indication information is PUCCH-SpatialRelationInfo. The PUCCH-SpatialRelationInfo includes reference signal indication information, and the UE determines the spatial relationship of the PUCCH according to the spatial relationship of the reference signal indicated in PUCCH-SpatialRelationInfo. The reference signal includes: SSB, CSI-RS or SRS.

[0136] In one embodiment, the fifth indication information is the latest fourth indication information, the fourth indication information is SRI, and determining the spatial relationship of the PUCCH based on the fifth indication information includes:

[0137] Determining an associated SRS resource based on the SRI;

[0138] Accordingly, the sending of the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following:

[0139] Sending the PUCCH using the same spatial filter as the associated SRS resource;

[0140] The PUCCH is sent using the same QCL relationship as the associated SRS resource.

[0141] In some embodiments, the associated SRS resource is a most recently transmitted target SRS resource with SRI, and the target SRS resource is transmitted before the PDCCH carrying the SRI.

[0142] The third method can be understood as a hybrid PUCCH beam determination method based on MAC-CE explicit configuration of PUCCH beam direction + following the most recent PUSCH beam direction. Among them, the mechanism of explicitly configuring the PUCCH beam direction based on MAC-CE can ensure the forward compatibility and performance stability of the solution, while the mechanism of following the most recent PUSCH beam direction can make the best effort to improve the flexibility of UL beam adjustment. Compared with the first and second methods, the third method does not increase DCI signaling overhead and UL transmission resource overhead.

[0143] Based on the above three methods, the embodiments of the present invention can effectively improve the indication flexibility of PUCCH beam direction adjustment.

[0144] In the embodiment of the present invention, the terminal sends the PUCCH based on the determined spatial relationship of the PUCCH, wherein the information carried by the PUCCH may be UCI (uplink control information), PUSCH information, and the like.

[0145] The embodiment of the present invention also provides a PUCCH receiving method, which is applied to a base station, such as Figure 2 As shown, the method includes:

[0146] Step 201, determining the spatial relationship of PUCCH;

[0147] Step 202: Receive the PUCCH based on the determined spatial relationship of the PUCCH.

[0148] In the embodiment of the present invention, determining the spatial relationship of the PUCCH includes the following three methods. In practical application, at least one of the following three methods may be used to determine the spatial relationship of the PUCCH:

[0149] In the first manner, the spatial relationship of the PUCCH is determined based on first indication information sent, where the first indication information is sent by DCI;

[0150] The second method is to determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0151] The third method is to determine the spatial relationship of PUCCH based on the latest indication information in the sent indication information, and the sent indication information includes: third indication information and / or fourth indication information, wherein the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0152] It should be noted that the first method on the base station side corresponds to the first method on the terminal side, the second method on the base station side corresponds to the second method on the terminal side, and the third method on the base station side corresponds to the third method on the terminal side. In actual applications, the base station can select any of the three methods to determine the spatial relationship of the PUCCH, and inform the terminal to select the corresponding spatial relationship of the PUCCH through configuration information.

[0153] In the first way:

[0154] The determining the spatial relationship of the PUCCH based on the sent first indication information specifically includes one of the following:

[0155] Determine, according to the first indication information, a spatial relationship of a PUCCH carrying HARQ-ACK information corresponding to the PDSCH, wherein the first indication information is carried by the DCI that schedules the PDSCH;

[0156] According to first indication information, a spatial relationship of a PUCCH carrying a CSI report is determined, wherein the first indication information is carried by a DCI carrying CSI request information.

[0157] In actual applications, the base station can allocate the first indication information for beam indication to the PUCCH carrying the HARQ-ACK information of the PDSCH or the PUCCH carrying the non-periodic CSI report, and send the first indication information based on the DCI. For example, for the PUCCH carrying the HARQ-ACK information of the PDSCH, the first indication information of the corresponding PUCCH beam indication can be carried in the DCI that schedules the transmission of the PDSCH; for the PUCCH carrying the non-periodic CSI report, the first indication information of the corresponding PUCCH beam indication can be carried in the DCI that carries the CSI request information.

[0158] In the embodiment of the present invention, the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2.

[0159] In some embodiments, the first indication information is SRI; and determining the spatial relationship of the PUCCH based on the sent first indication information includes:

[0160] Determine the associated SRS resources based on the SRI;

[0161] The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before the PDCCH carrying the SRI.

[0162] Accordingly, based on the determined spatial relationship of the PUCCH, receiving the PUCCH includes one of the following:

[0163] Receiving the PUCCH using the same spatial filter as the associated SRS resource;

[0164] The PUCCH is received using the same QCL relationship as the associated SRS resource.

[0165] The first method determines the spatial relationship of PUCCH based on the first indication information allocated by the base station, and carries the first indication information through DCI, thereby sending it to the terminal. Compared with the method of using MAC-CE indication, the flexibility of PUCCH beam switching is enhanced.

[0166] In the second way:

[0167] In the embodiment of the present invention, the second indication information includes: a spatial relationship set between a repetition period and a PUCCH.

[0168] In practical applications, the base station can pre-configure the repetition period and the PUCCH spatial relationship set, and send it to the terminal through RRC signaling. Here, the repetition period can be a specified N time slots (slot), N is a positive integer; the PUCCH spatial relationship set includes at least one candidate spatial relationship for PUCCH transmission.

[0169] In some embodiments, the determining, based on the configured second indication information, at least one spatial relationship of the PUCCH comprises one of the following:

[0170] For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship;

[0171] For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

[0172] Here, when the same spatial relationship is shared for each time slot in the repetition period, the base station receives PUCCH using the same spatial relationship in N time slots. When a different spatial relationship is selected from the spatial relationship set for each time slot in the repetition period, the base station receives PUCCH in N time slots based on the spatial relationship corresponding to each time slot. In this way, transmission failure caused by blocking of high-frequency signals can be avoided, and the reliability of PUCCH transmission can be improved.

[0173] In some embodiments, the PUCCH reception method further includes one of the following:

[0174] Determine, based on whether the second indication information carries the first field, for each time slot within the repetition period, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set;

[0175] Determine each time slot within the repetition period based on a state of the second field carried in the second indication information, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set.

[0176] In some embodiments, determining each time slot within the repetition period based on whether the second indication information carries the first field, selecting the same spatial relationship from the spatial relationship set or selecting a different spatial relationship from the spatial relationship set includes:

[0177] When the second indication information carries the first field, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set;

[0178] When the second indication information does not carry the first field, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set.

[0179] It can be understood that, in another embodiment, it can be determined that when the second indication information carries the first field, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set, and accordingly, when the second indication information does not carry the first field, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set. Here, the first field can be indicated by DCI and / or configured by a high layer. Specifically, the first field can be indicated by any method of DCI, RRC, or MAC-CE.

[0180] In some embodiments, determining each time slot within the repetition period based on a state of a second field carried in the second indication information, selecting the same spatial relationship from the spatial relationship set or selecting a different spatial relationship from the spatial relationship set includes:

[0181] When the second field carried by the second indication information is in the first state, for each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set;

[0182] When the second field carried by the second indication information is in the second state, for each time slot in the repetition period, the same spatial relationship is selected from the spatial relationship set.

[0183] Here, the first state and the second state are different states and can be distinguished based on different values ​​assigned to the second field.

[0184] Here, the second field may be indicated by DCI and / or configured by a higher layer. Specifically, the second field may be indicated by any one of DCI, RRC, or MAC-CE.

[0185] In some embodiments, for each time slot within the repetition period, selecting the same spatial relationship from the set of spatial relationships comprises:

[0186] For the first time slot in the repetition period, based on a preset rule or first configuration information, a spatial relationship corresponding to the PUCCH of the first time slot is determined, and the spatial relationship is allocated to other time slots in the repetition period.

[0187] Here, the preset rule may be to determine that the spatial relationship adopted by the first time slot is the first spatial relationship in the configured spatial relationship set. The first configuration information may be obtained based on high-level configuration information. The first configuration information is used to specify the spatial relationship corresponding to the first time slot, and the spatial relationship may be any spatial relationship in the spatial relationship set.

[0188] In actual applications, the base station can send the first configuration information and the second configuration information to the terminal through RRC signaling. The second configuration information includes: a set of spatial relationships between a repetition period and PUCCH, and the first configuration information is used to specify the spatial relationship corresponding to the first time slot in the repetition period.

[0189] In some embodiments, for each time slot within the repetition period, selecting a different spatial relationship from the spatial relationship set to determine the spatial relationship of the PUCCH includes:

[0190] For a first time slot in the repetition period, determining a spatial relationship corresponding to a PUCCH of the first time slot based on a preset rule or first configuration information;

[0191] For other time slots in the repetition period, the spatial relationships corresponding to the PUCCHs of the other time slots are determined in sequence according to the order of the spatial relationships in the spatial relationship set.

[0192] In an application example, when the base station determines that different spatial relationships are used to receive PUCCH in N slots, the base station can determine the spatial relationship used in the first slot based on a preset rule or first configuration information, and the base station determines that the remaining slots in the N slots sequentially use the spatial relationship of the PUCCH spatial relationship information set. For example, the spatial relationship set of PUCCH includes 4 spatial relationships {A, B, C, D}, N = 6, and the spatial relationship used in the first slot is B, then the base station determines that the spatial relationships of the 6 slots are {B, C, D, A, B, C} respectively.

[0193] Compared with the first method, the second method can be applied to all PUCCH transmission methods, and is not limited to the case where PUCCH carries non-periodic CSI reports or carries HARQ-ACK information corresponding to DCI-scheduled PDSCH. In addition, the second method does not need to increase DCI signaling overhead. The second method of PUCCH information reception method enhances the reliability of uplink transmission by using the transmission resource overhead of the uplink signal, has good robustness, and can improve the poor situation where the system cannot work due to relatively slow PUCCH beam selection. Therefore, it can be applied to scenarios with high reliability requirements.

[0194] In the third method:

[0195] The determining the spatial relationship of the PUCCH based on the latest indication information in the sent indication information specifically includes:

[0196] Determine the effective time of the latest third indication information and / or fourth indication information in the sent indication information, wherein the effective time of the latest third indication information and / or fourth indication information is in the same time slot as the PUCCH or is smaller than the time slot where the PUCCH is located;

[0197] Determine fifth indication information based on the effective time of the latest third indication information and / or fourth indication information;

[0198] The spatial relationship of the PUCCH is determined based on the fifth indication information.

[0199] In some embodiments, the unit of the validity time of each indication information is a time slot or a symbol. Here, the fifth indication information can also be called valid indication information, reference indication information or target indication information, which is used to determine the spatial relationship of PUCCH.

[0200] In some embodiments, determining the effective time of the latest third indication information includes:

[0201] Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently received PUCCH;

[0202] The most recently received PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to the most recently received PDSCH carrying the third indication information.

[0203] In an application example, if the base station receives a PUCCH in time slot k, the PUCCH carries HARQ-ACK information with an ACK value, and the HARQ-ACK information corresponds to a PDSCH indicating a PUCCH spatial relationship (PUCCH-SpatialRelationInfo), then the base station determines that the effective time of the PUCCH spatial relationship indication is time slot Wherein, X is an integer (for example, X=3), μ is the subcarrier spacing configuration (SCS configuration) of the PUCCH carrying HARQ-ACK information, is the number of time slots included in the subframe. In this embodiment, the third indication information is a PUCCH spatial relationship (PUCCH-SpatialRelationInfo) indication.

[0204] In some embodiments, determining the effective time of the latest fourth indication information includes:

[0205] The effective time of the latest fourth indication information is determined based on the time slot corresponding to the most recently sent DCI scheduling PUSCH; wherein the DCI carries the fourth indication information.

[0206] In an application example, if the base station sends a DCI format for scheduling PUSCH transmission in time slot n, and the DCI format includes an SRS resource indicator (SRI) field, the base station determines that the effective time of the fourth indication information is time slot n+Δ. In some embodiments, Δ is a preset parameter or configured by a high layer, for example, Δ=0. In some other embodiments, Δ can be determined according to the terminal capability.

[0207] In some embodiments, the determining the fifth indication information based on the effective time of the latest third indication information and / or fourth indication information includes one of the following:

[0208] If the effective time of the latest third indication information is greater than the latest fourth indication time, determining the latest third indication information as the fifth indication information;

[0209] If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information;

[0210] If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

[0211] In an application example, the effective time M1 of the latest third indication information is determined; the effective time M2 of the latest fourth indication information is determined; wherein M1 and M2 are both before the transmission time of the PUCCH with the spatial relationship to be determined, or are in the same time slot as the PUCCH with the spatial relationship to be determined.

[0212] Then determine the spatial relationship of PUCCH, including:

[0213] If M1>M2, the spatial relationship of the PUCCH is determined according to the latest third indication information;

[0214] If M2>M1, the spatial relationship of the PUCCH is determined according to the latest fourth indication information;

[0215] If M1=M2, the spatial relationship of the PUCCH is determined according to the latest third indication information; or, the spatial relationship of the PUCCH is determined according to the latest fourth indication information.

[0216] In one embodiment, the fifth indication information is the latest third indication information, and based on the determined spatial relationship of the PUCCH, receiving the PUCCH includes one of the following:

[0217] If the latest third indication information provides an SSB indication, the PUCCH is received using the same spatial filter as used to send the SS / PBCH block with the SSB indication;

[0218] If the latest third indication information provides a CSI-RS indication, the PUCCH is received using the same spatial filter as that used to send the CSI-RS resource with the CSI-RS indication;

[0219] If the latest third indication information provides SRS, the same spatial filter as that used for receiving the SRS resource is used to receive the PUCCH.

[0220] In some embodiments, the base station may determine the spatial relationship of the PUCCH according to the PUCCH-SpatialRelationInfo carried by the PDSCH. The third indication information is PUCCH-SpatialRelationInfo, and the PUCCH-SpatialRelationInfo includes reference signal indication information. The UE may determine the spatial relationship of the PUCCH according to the spatial relationship of the reference signal indicated in the PUCCH-SpatialRelationInfo. The reference signal includes: SSB, CSI-RS or SRS.

[0221] In one embodiment, the fifth indication information is the latest fourth indication information, the fourth indication information is SRI, and determining the spatial relationship of the PUCCH based on the fifth indication information includes:

[0222] Determining an associated SRS resource based on the SRI;

[0223] Accordingly, the receiving the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following:

[0224] Receiving the PUCCH using the same spatial filter as the associated SRS resource;

[0225] The PUCCH is received using the same QCL relationship as the associated SRS resource.

[0226] In some embodiments, the associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before the PDCCH carrying the SRI.

[0227] In the third mode, the base station may determine the spatial relationship of the PUCCH based on the latest indication information in the sent third indication information and / or the fourth indication information. Compared with the first and second modes, the third mode does not increase the DCI signaling overhead and the UL transmission resource overhead.

[0228] The embodiment of the present invention also provides a PUCCH transmission method, such as Figure 3 As shown, the method comprises the following steps:

[0229] Step 301, the terminal determines the spatial relationship of the PUCCH; and sends the PUCCH based on the determined spatial relationship of the PUCCH;

[0230] Step 302: The base station determines the spatial relationship of the PUCCH, and receives the PUCCH based on the determined spatial relationship of the PUCCH.

[0231] It should be noted that the specific processing procedures of the terminal and the base station have been described in detail above and will not be repeated here.

[0232] It should be noted that the terminal may be user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent or UE device, etc. The access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolved public land mobile network (PLMN) network, etc.

[0233] In order to implement the method of an embodiment of the present invention, an embodiment of the present invention also provides a PUCCH sending device, which is applied to a terminal. The PUCCH sending device corresponds to the above-mentioned PUCCH sending method, and each step in the above-mentioned PUCCH sending method embodiment is also fully applicable to the present PUCCH sending device embodiment.

[0234] like Figure 4 As shown, the PUCCH sending device includes: a first determining module 401 and a first sending module 402, wherein:

[0235] A first determining module 401 is used to determine the spatial relationship of the PUCCH;

[0236] A first sending module 402, configured to send a PUCCH based on the determined spatial relationship of the PUCCH;

[0237] The first determining module 401 is specifically used for one of the following:

[0238] Determine a spatial relationship of the PUCCH based on the first indication information carried in the DCI;

[0239] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0240] The spatial relationship of PUCCH is determined based on the latest indication information in the received indication information, and the received indication information includes: third indication information and / or fourth indication information, wherein the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling PUSCH.

[0241] In some embodiments, the first determining module 401 determines the spatial relationship of the PUCCH based on the first indication information carried in the DCI, including one of the following:

[0242] Determine, according to the first indication information carried in the DCI for scheduling the PDSCH, a spatial relationship of the PUCCH carrying hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the PDSCH;

[0243] The spatial relationship of the PUCCH carrying the CSI report is determined according to the first indication information carried in the DCI carrying the CSI request information.

[0244] In some embodiments, the first indication information is SRI; the first indication information carried in the DCI determines the spatial relationship of the PUCCH, including:

[0245] Determine an associated sounding reference signal SRS resource according to the SRI;

[0246] Here, the associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before a physical downlink control channel PDCCH carrying SRI.

[0247] Accordingly, the first sending module 402 is specifically used for one of the following:

[0248] Sending the PUCCH using the same spatial filter as the associated SRS resource;

[0249] The PUCCH is sent using the same quasi co-location (QCL) relationship as the associated SRS resource.

[0250] In some embodiments, the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH, and the first determination module 401 determines at least one spatial relationship of the PUCCH based on the configured second indication information, including one of the following:

[0251] For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship;

[0252] For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

[0253] In some embodiments, the first determining module 401 is further configured to:

[0254] Determine, based on whether the second indication information carries the first field, for each time slot within the repetition period, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set;

[0255] Determine each time slot within the repetition period based on a state of the second field carried in the second indication information, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set.

[0256] In some embodiments, for each time slot within the repetition period, selecting the same spatial relationship from the set of spatial relationships comprises:

[0257] For the first time slot in the repetition period, based on a preset rule or the received first configuration information, a spatial relationship corresponding to the PUCCH of the first time slot is determined, and the spatial relationship is allocated to other time slots in the repetition period.

[0258] In some embodiments, for each time slot within the repetition period, selecting a different spatial relationship from the spatial relationship set to determine the spatial relationship of the PUCCH includes:

[0259] For a first time slot in the repetition period, determining a spatial relationship corresponding to a PUCCH of the first time slot based on a preset rule or the received first configuration information;

[0260] For other time slots in the repetition period, the spatial relationships corresponding to the PUCCHs of the other time slots are determined in sequence according to the order of the spatial relationships in the spatial relationship set.

[0261] In some embodiments, the information sending device further includes: a first receiving module 403, configured to receive second configuration information, and acquire second indication information of the configuration based on the second configuration information.

[0262] In some embodiments, the first determining module 401 determines the spatial relationship of the PUCCH based on the latest indication information in the received indication information, including:

[0263] Determine the effective time of the latest third indication information and / or the fourth indication information in the received indication information, wherein the effective time of the latest third indication information and / or the fourth indication information is in the same time slot as the PUCCH of the to-be-determined spatial relationship or is smaller than the time slot of the PUCCH of the to-be-determined spatial relationship;

[0264] Determine fifth indication information based on the effective time of the latest third indication information and / or fourth indication information;

[0265] The spatial relationship of the PUCCH is determined based on the fifth indication information.

[0266] In some embodiments, the determining the fifth indication information based on the effective time includes one of the following:

[0267] If the effective time of the latest third indication information is greater than the latest PUSCH beam indication time, determining the latest third indication information as the fifth indication information;

[0268] If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information;

[0269] If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

[0270] In some embodiments, determining the effective time of the latest third indication information includes:

[0271] Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently sent PUCCH;

[0272] The most recently transmitted PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to a PDSCH indicating a spatial relationship of the most recently transmitted PUCCH.

[0273] In some embodiments, determining the effective time of the latest fourth indication information includes:

[0274] The effective time of the latest fourth indication information is determined based on the time slot corresponding to the most recently received DCI scheduling PUSCH; wherein the DCI includes SRI.

[0275] In some embodiments, the fifth indication information is the latest third indication information, and the first sending module 402 is specifically used for one of the following:

[0276] If the latest third indication information provides a synchronization signal block indication (SSB Index), the PUCCH is sent using the same spatial filter as that used to receive the synchronization signal and broadcast channel block (SS / PBCH Block) with SSB Index;

[0277] If the latest third indication information provides a channel state information reference signal indication (CSI-RS Index), the PUCCH is sent using the same spatial filter as that used to receive the CSI-RS resource having the CSI-RS Index;

[0278] If the latest third indication information provides SRS, the PUCCH is sent using the same spatial filter as that used to send the SRS resource.

[0279] In some embodiments, the fifth indication information is the latest fourth indication information, the fourth indication information is SRI, and the first determination module 401 is specifically used to: determine the associated SRS resource based on the SRI;

[0280] Accordingly, the first sending module 402 is specifically used for one of the following:

[0281] Sending the PUCCH using the same spatial filter as the associated SRS resource;

[0282] The PUCCH is sent using the same QCL relationship as the associated SRS resource.

[0283] In actual application, the first determining module 401, the first sending module 402 and the first receiving module 403 can be implemented by a processor in the PUCCH sending device. Of course, the processor needs to run the computer program in the memory to implement its functions.

[0284] In order to implement the method of an embodiment of the present invention, an embodiment of the present invention also provides a PUCCH receiving device, which is applied to a base station. The PUCCH receiving device corresponds to the above-mentioned PUCCH receiving method, and each step in the above-mentioned PUCCH receiving method embodiment is also fully applicable to the present PUCCH receiving device embodiment.

[0285] like Figure 5 As shown, the PUCCH receiving device includes: a second determining module 501 and a second receiving module 502, wherein:

[0286] A second determining module 501 is used to determine the spatial relationship of the PUCCH;

[0287] A second receiving module 502, configured to receive a PUCCH based on the determined spatial relationship of the PUCCH;

[0288] The determining of the spatial relationship of the PUCCH includes one of the following:

[0289] Determine the spatial relationship of the PUCCH based on the first indication information sent, where the first indication information is sent by the DCI;

[0290] Determine at least one spatial relationship of the PUCCH based on the configured second indication information;

[0291] The spatial relationship of the PUCCH is determined based on the latest indication information in the sent indication information, and the sent indication information includes: third indication information and / or fourth indication information, wherein the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI that schedules the physical uplink shared channel PUSCH.

[0292] In some embodiments, the second determining module 501 determines the spatial relationship of the PUCCH based on the sent first indication information, including one of the following:

[0293] Determine, according to the first indication information, a spatial relationship of a PUCCH carrying HARQ-ACK information corresponding to the PDSCH, wherein the first indication information is carried by the DCI that schedules the PDSCH;

[0294] According to first indication information, a spatial relationship of a PUCCH carrying a CSI report is determined, wherein the first indication information is carried by a DCI carrying CSI request information.

[0295] In some embodiments, the first indication information is SRI; the second determination module 501 is specifically used to: determine the associated sounding reference signal SRS resource according to SRI; accordingly, the second receiving module 502 is specifically used for one of the following:

[0296] Sending the PUCCH using the same spatial filter as the associated SRS resource;

[0297] The PUCCH is received using the same QCL relationship as the associated SRS resource.

[0298] The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before a physical downlink control channel PDCCH that carries SRI.

[0299] In some embodiments, the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH, and the second determination module 501 determines at least one spatial relationship of the PUCCH based on the configured second indication information, including one of the following:

[0300] For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship;

[0301] For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

[0302] In some embodiments, the second determining module 501 is further used for one of the following:

[0303] Determine, based on whether the second indication information carries the first field, for each time slot within the repetition period, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set;

[0304] Determine each time slot within the repetition period based on a state of the second field carried in the second indication information, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set.

[0305] In some embodiments, for each time slot within the repetition period, selecting the same spatial relationship from the set of spatial relationships comprises:

[0306] For the first time slot in the repetition period, based on a preset rule or first configuration information, a spatial relationship corresponding to the PUCCH of the first time slot is determined, and the spatial relationship is allocated to other time slots in the repetition period.

[0307] In some embodiments, for each time slot within the repetition period, selecting a different spatial relationship from the spatial relationship set to determine the spatial relationship of the PUCCH includes:

[0308] For a first time slot in the repetition period, determining a spatial relationship corresponding to a PUCCH of the first time slot based on a preset rule or first configuration information;

[0309] For other time slots in the repetition period, the spatial relationships corresponding to the PUCCHs of the other time slots are determined in sequence according to the order of the spatial relationships in the spatial relationship set.

[0310] In some embodiments, the information receiving apparatus further includes a second sending module 503, configured to send second configuration information to the terminal, wherein the second configuration information carries second indication information of the configuration.

[0311] In some embodiments, the second determining module 501 determines the spatial relationship of the PUCCH based on the latest indication information in the sent indication information, including:

[0312] Determine the effective time of the latest third indication information and / or fourth indication information in the sent indication information, wherein the effective time of the latest third indication information and / or fourth indication information is in the same time slot as the PUCCH or is smaller than the time slot where the PUCCH is located;

[0313] Determine fifth indication information based on the effective time of the latest third indication information and / or fourth indication information;

[0314] The spatial relationship of the PUCCH is determined based on the fifth indication information.

[0315] In some embodiments, the determining the fifth indication information based on the effective time includes one of the following:

[0316] If the effective time of the latest third indication information is greater than the latest PUSCH beam indication time, determining the latest third indication information as the fifth indication information;

[0317] If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information;

[0318] If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

[0319] In some embodiments, determining the effective time of the latest third indication information includes:

[0320] Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently received PUCCH;

[0321] The most recently received PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to the most recently received PDSCH carrying the third indication information.

[0322] In some embodiments, determining the effective time of the latest fourth indication information includes:

[0323] The effective time of the latest fourth indication information is determined based on the time slot corresponding to the most recently sent DCI scheduling PUSCH; wherein the DCI carries the fourth indication information.

[0324] In some embodiments, the fifth indication information is the latest third indication information, and the second receiving module 502 is specifically used for one of the following:

[0325] If the latest third indication information provides an SSB indication, the PUCCH is received using the same spatial filter as used to send the SS / PBCH block with the SSB indication;

[0326] If the latest third indication information provides a CSI-RS indication, the PUCCH is received using the same spatial filter as that used to send the CSI-RS resource with the CSI-RS indication;

[0327] If the latest third indication information provides SRS, the same spatial filter as that used for receiving the SRS resource is used to receive the PUCCH.

[0328] In some embodiments, the fifth indication information is the latest fourth indication information, the fourth indication information is SRI, and the second determination module 501 is specifically used to: determine the associated SRS resource based on the SRI;

[0329] Accordingly, the second receiving module 502 is specifically used for one of the following:

[0330] Receiving the PUCCH using the same spatial filter as the associated SRS resource;

[0331] The PUCCH is received using the same QCL relationship as the associated SRS resource.

[0332] In actual application, the second determining module 501, the second receiving module 502 and the second sending module 503 can be implemented by a processor in the PUCCH receiving device. Of course, the processor needs to run the computer program in the memory to implement its functions.

[0333] It should be noted that: the PUCCH sending device or PUCCH receiving device provided in the above embodiment only uses the division of the above program modules as an example when performing PUCCH transmission. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the PUCCH sending device and the PUCCH sending method embodiment provided in the above embodiment belong to the same concept, and the PUCCH receiving device and the PUCCH receiving method embodiment provided in the above embodiment belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0334] Based on the hardware implementation of the above program modules and in order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides a terminal. Figure 6 Only an exemplary structure of the terminal is shown, not all structures, and can be implemented as needed. Figure 6 Partial or complete structure shown.

[0335] like Figure 6 As shown in FIG. 1 , the terminal 600 provided in the embodiment of the present invention includes: at least one processor 601, a memory 602, a user interface 603, and at least one network interface 604. The various components in the terminal 600 are coupled together through a bus system 605. It can be understood that the bus system 605 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 605 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 605 is not shown in FIG. Figure 6 Various buses are labeled as bus system 605 .

[0336] The user interface 603 may include a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad or a touch screen.

[0337] The memory 602 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal. Examples of such data include: any computer program used to operate on the terminal.

[0338] The PUCCH transmission method disclosed in the embodiment of the present invention can be applied to the processor 601, or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the PUCCH transmission method can be completed by the hardware integrated logic circuit in the processor 601 or the instructions in the form of software. The above-mentioned processor 601 can be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 601 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, and the storage medium is located in the memory 602. The processor 601 reads the information in the memory 602 and completes the steps of the PUCCH transmission method provided in the embodiment of the present invention in combination with its hardware.

[0339] In an exemplary embodiment, the terminal may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), FPGA, general purpose processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0340] Based on the hardware implementation of the above program modules and in order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides a base station. Figure 7 Only an exemplary structure of the base station is shown, not all structures, and can be implemented as needed. Figure 7 Partial or complete structure shown.

[0341] like Figure 7 As shown, the base station 700 provided in the embodiment of the present invention includes: at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the base station 700 are coupled together through a bus system 705. It can be understood that the bus system 705 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 705.

[0342] The user interface 703 may include a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad or a touch screen.

[0343] The memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the base station. Examples of such data include: any computer program used to operate on the base station.

[0344] The PUCCH receiving method disclosed in the embodiment of the present invention can be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the PUCCH receiving method can be completed by the hardware integrated logic circuit or software instructions in the processor 701. The above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 701 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the PUCCH receiving method provided in the embodiment of the present invention in combination with its hardware.

[0345] In an exemplary embodiment, the base station 700 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0346] It can be understood that the memory 602, 702 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present invention are intended to include, but are not limited to, these and any other suitable types of memories.

[0347] In an exemplary embodiment, the embodiment of the present invention further provides a storage medium, namely a computer storage medium, which may be a computer-readable storage medium, for example, a memory 602 storing a computer program, which may be executed by a processor 601 of a terminal to complete the steps described in the terminal side method of the embodiment of the present invention. For another example, a memory 702 storing a computer program may be executed by a processor 701 of a base station to complete the steps described in the base station side method of the embodiment of the present invention. The computer-readable storage medium may be a memory such as a ROM, a PROM, an EPROM, an EEPROM, a Flash Memory, a magnetic surface memory, an optical disk, or a CD-ROM.

[0348] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0349] In addition, the technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.

[0350] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for transmitting a physical uplink control channel (PUCCH), applied to a terminal, characterized in that: The method comprises: Determine a spatial relationship of a PUCCH, wherein the determining the spatial relationship of the PUCCH comprises one of the following: Determine the spatial relationship of the PUCCH based on the first indication information carried in the downlink control information DCI; wherein the DCI is a DCI for scheduling the PDSCH or carrying channel state information (CSI) request information; the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2; Determine at least one spatial relationship of the PUCCH based on the configured second indication information; the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH; Determine the spatial relationship of the PUCCH based on the latest indication information in the received indication information, where the received indication information includes: third indication information and fourth indication information, where the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI for scheduling the physical uplink shared channel PUSCH; Sending the PUCCH based on the determined spatial relationship of the PUCCH; The determining, based on the configured second indication information, at least one spatial relationship of the PUCCH includes one of the following: For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship; For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

2. The method according to claim 1, characterized in that The determining the spatial relationship of the PUCCH based on the first indication information carried in the DCI includes: Determine, according to the first indication information carried in the DCI for scheduling the physical downlink shared channel PDSCH, the spatial relationship of the PUCCH carrying the hybrid automatic repeat request-acknowledgement HARQ-ACK information corresponding to the PDSCH; Or determine the spatial relationship of the PUCCH carrying the CSI report according to the first indication information carried in the DCI carrying the channel state information CSI request information.

3. The method according to claim 1, characterized in that The first indication information is a sounding reference signal resource indication SRI; and the determining the spatial relationship of the PUCCH based on the first indication information carried in the DCI includes: Determine an associated sounding reference signal SRS resource according to the SRI; The sending of the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following: Sending the PUCCH using the same spatial filter as the associated SRS resource; Sending the PUCCH using the same quasi-co-located QCL relationship as the associated SRS resource; The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before a physical downlink control channel PDCCH that carries SRI.

4. The method according to claim 1, characterized in that: The method further comprises one of the following: Determine for each time slot within the repetition period based on whether the second indication information carries the first field, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set; Determine each time slot within the repetition period based on a state of the second field carried in the second indication information, select the same spatial relationship from the spatial relationship set or select a different spatial relationship from the spatial relationship set.

5. The method according to claim 4, characterized in that The selecting, for each time slot within the repetition period, a different spatial relationship from the spatial relationship set to determine the spatial relationship of the PUCCH comprises: For a first time slot in the repetition period, determining a spatial relationship corresponding to a PUCCH of the first time slot based on a preset rule or the received first configuration information; For other time slots in the repetition period, the spatial relationships corresponding to the PUCCHs of the other time slots are determined in sequence according to the order of the spatial relationships in the spatial relationship set.

6. The method according to claim 1, characterized in that The method further comprises: Receive second configuration information, and acquire second indication information of the configuration based on the second configuration information.

7. The method according to claim 1, characterized in that The determining the spatial relationship of the PUCCH based on the latest indication information in the received indication information includes: Determine the effective time of the latest third indication information and / or fourth indication information in the received indication information, wherein the effective time of the latest third indication information and / or fourth indication information is in the same time slot as the PUCCH or is smaller than the time slot where the PUCCH is located; Determine fifth indication information based on the effective time of the latest third indication information and / or fourth indication information; The spatial relationship of the PUCCH is determined based on the fifth indication information.

8. The method according to claim 7, characterized in that The determining the fifth indication information based on the effective time of the latest third indication information and / or fourth indication information includes one of the following: If the effective time of the latest third indication information is greater than the effective time of the latest fourth indication information, determining the latest third indication information as the fifth indication information; If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information; If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

9. The method according to claim 7, characterized in that: Determine the effective time of the latest third instruction information, including: Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently sent PUCCH; The most recently sent PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to the most recently received PDSCH carrying the third indication information.

10. The method according to claim 7, characterized in that Determine the effective time of the latest fourth instruction information, including: Determine the effective time of the latest fourth indication information based on the time slot corresponding to the most recently received DCI scheduling PUSCH; Wherein, the DCI carries the fourth indication information.

11. The method according to claim 7, characterized in that The fifth indication information is the latest third indication information, and the sending of the PUCCH based on the spatial relationship of the PUCCH determined based on the fifth indication information includes one of the following: If the latest third indication information provides a synchronization signal block SSB indication, the PUCCH is sent using the same spatial filter as that used for receiving a synchronization signal and broadcast channel SS / PBCH block with an SSB indication; If the latest third indication information provides a channel state information reference signal CSI-RS indication, the PUCCH is sent using the same spatial filter as that used to receive the CSI-RS resource with the CSI-RS indication; If the latest third indication information provides SRS, the PUCCH is sent using the same spatial filter as that used to send the SRS resource.

12. The method according to claim 7, characterized in that The fifth indication information is the latest fourth indication information, the fourth indication information is the SRI, and the determining the spatial relationship of the PUCCH based on the fifth indication information includes: Determining an associated SRS resource based on the SRI; The sending of the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following: Sending the PUCCH using the same spatial filter as the associated SRS resource; The PUCCH is sent using the same QCL relationship as the associated SRS resource.

13. A PUCCH receiving method, applied to a base station, characterized in that: The method comprises: Determine the spatial relationship of the PUCCH; wherein the determining the spatial relationship of the PUCCH includes one of the following: Determine the spatial relationship of the PUCCH based on the first indication information sent, where the first indication information is carried by the DCI; wherein the DCI is a DCI for scheduling the PDSCH or carrying channel state information (CSI) request information, and the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2; Determine at least one spatial relationship of the PUCCH based on the configured second indication information; the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH; Determine the spatial relationship of the PUCCH based on the latest indication information in the sent indication information, where the sent indication information includes: third indication information and fourth indication information, where the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI for scheduling the physical uplink shared channel PUSCH; receiving the PUCCH based on the determined spatial relationship of the PUCCH; The determining, based on the configured second indication information, at least one spatial relationship of the PUCCH includes one of the following: For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship; For each time slot in the repetition period, a different spatial relationship is selected from the spatial relationship set, and the spatial relationship of the PUCCH of each time slot is determined based on the different spatial relationship.

14. The method according to claim 13, characterized in that The determining the spatial relationship of the PUCCH based on the sent first indication information includes one of the following: Determine, according to the first indication information, a spatial relationship of a PUCCH carrying HARQ-ACK information corresponding to the PDSCH, wherein the first indication information is carried by the DCI that schedules the PDSCH; According to first indication information, a spatial relationship of a PUCCH carrying a CSI report is determined, wherein the first indication information is carried by a DCI carrying CSI request information.

15. The method according to claim 13, characterized in that The first indication information is SRI; and determining the spatial relationship of the PUCCH based on the sent first indication information includes: Determine the associated SRS resources based on the SRI; The receiving the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following: Receiving the PUCCH using the same spatial filter as the associated SRS resource; Receiving the PUCCH using the same QCL relationship as the associated SRS resource; The associated SRS resource is a target SRS resource with SRI that is transmitted most recently, and the target SRS resource is transmitted before the PDCCH carrying the SRI.

16. The method according to claim 13, characterized in that The method further comprises: Sending second configuration information to the terminal, where the second configuration information carries second indication information of the configuration.

17. The method according to claim 13, characterized in that The determining the spatial relationship of the PUCCH based on the latest indication information in the sent indication information includes: Determine the effective time of the latest third indication information and / or fourth indication information in the sent indication information, wherein the effective time of the latest third indication information and / or fourth indication information is in the same time slot as the PUCCH or is smaller than the time slot where the PUCCH is located; Determine fifth indication information based on the effective time of the latest third indication information and / or fourth indication information; The spatial relationship of the PUCCH is determined based on the fifth indication information.

18. The method according to claim 17, characterized in that The determining the fifth indication information based on the effective time of the latest third indication information and / or fourth indication information includes one of the following: If the effective time of the latest third indication information is greater than the effective time of the latest fourth indication information, determining the latest third indication information as the fifth indication information; If the effective time of the latest fourth indication information is greater than the effective time of the latest third indication information, determining the latest fourth indication information as the fifth indication information; If the effective time of the latest third indication information is equal to the effective time of the latest fourth indication information, it is determined that the latest third indication information or the latest fourth indication information is the fifth indication information.

19. The method according to claim 17, characterized in that Determine the effective time of the latest third instruction information, including: Determine the effective time of the latest third indication information based on the time slot corresponding to the most recently received PUCCH; The most recently received PUCCH is used to carry HARQ-ACK information, and the HARQ-ACK information corresponds to the most recently sent PDSCH carrying the third indication information.

20. The method according to claim 17, characterized in that Determine the effective time of the latest fourth instruction information, including: Determine the effective time of the latest fourth indication information based on the time slot corresponding to the most recently sent DCI scheduling PUSCH; Wherein, the DCI carries the fourth indication information.

21. The method according to claim 17, characterized in that The fifth indication information is the latest third indication information, and the spatial relationship of the PUCCH determined based on the third indication information, receiving the PUCCH, includes one of the following: If the latest third indication information provides an SSB indication, the PUCCH is received using the same spatial filter as used to send the SS / PBCH block with the SSB indication; If the latest third indication information provides a CSI-RS indication, the PUCCH is received using the same spatial filter as that used to send the CSI-RS resource with the CSI-RS indication; If the latest third indication information provides SRS, the same spatial filter as that used for receiving the SRS resource is used to receive the PUCCH.

22. The method according to claim 17, characterized in that The fifth indication information is the latest fourth indication information, the fourth indication information is the SRI, and the determining the spatial relationship of the PUCCH based on the fifth indication information includes: Determining an associated SRS resource based on the SRI; The receiving the PUCCH based on the determined spatial relationship of the PUCCH includes one of the following: Receiving the PUCCH using the same spatial filter as the associated SRS resource; The PUCCH is received using the same QCL relationship as the associated SRS resource.

23. A PUCCH sending device, applied to a terminal, characterized in that: include: A first determining module, configured to determine a spatial relationship of a PUCCH; A sending module, configured to send the PUCCH based on the determined spatial relationship of the PUCCH; The first determining module is specifically used for one of the following: Determine the spatial relationship of the PUCCH based on the first indication information carried in the DCI; wherein the DCI is a DCI for scheduling the PDSCH or carrying channel state information (CSI) request information, and the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2; Determine at least one spatial relationship of the PUCCH based on the configured second indication information, where the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH; The determining, based on the configured second indication information, at least one spatial relationship of the PUCCH includes one of the following: For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship; For each time slot within the repetition period, select a different spatial relationship from the spatial relationship set, and determine a spatial relationship of a PUCCH of each time slot based on the different spatial relationship; The spatial relationship of PUCCH is determined based on the latest indication information in the received indication information, the received indication information includes: third indication information and fourth indication information, the third indication information is the spatial relationship indication of PUCCH, and the fourth indication information is carried by the DCI scheduling the physical uplink shared channel PUSCH.

24. A PUCCH receiving device, applied to a base station, characterized in that: include: A second determination module is used to determine the spatial relationship of the PUCCH; A receiving module, configured to receive the PUCCH based on the determined spatial relationship of the PUCCH; The second determining module is specifically used for one of the following: Determine the spatial relationship of the PUCCH based on the first indication information sent, where the first indication information is carried by the DCI; wherein the DCI is a DCI for scheduling the PDSCH or carrying channel state information (CSI) request information, and the DCI carrying the first indication information includes: at least one of DCI format 1_0, DCI Format 1_1, and DCI Format 1_2; Determine at least one spatial relationship of the PUCCH based on the configured second indication information; the second indication information includes: a repetition period and a set of spatial relationships of the PUCCH; The determining, based on the configured second indication information, at least one spatial relationship of the PUCCH includes one of the following: For each time slot in the repetition period, select the same spatial relationship from the set of spatial relationships, and determine a spatial relationship shared by the PUCCH of each time slot based on the same spatial relationship; For each time slot within the repetition period, select a different spatial relationship from the spatial relationship set, and determine a spatial relationship of a PUCCH of each time slot based on the different spatial relationship; The spatial relationship of the PUCCH is determined based on the latest indication information in the sent indication information, and the sent indication information includes: third indication information and fourth indication information, the third indication information is the spatial relationship indication of the PUCCH, and the fourth indication information is carried by the DCI scheduling the physical uplink shared channel PUSCH.

25. A terminal, characterized in that: include: A processor and a memory for storing a computer program that can be executed on the processor, wherein: The processor is used to execute the steps of the method according to any one of claims 1 to 12 when running a computer program.

26. A base station, characterized in that: include: A processor and a memory for storing a computer program that can be executed on the processor, wherein: The processor is used to execute the steps of the method according to any one of claims 13 to 22 when running a computer program.

27. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method described in any one of claims 1 to 12 or 13 to 22 are implemented.

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