Method for configuring uplink channel, method for transmitting uplink channel, network-side device and terminal

Abstract

The application provides an uplink channel configuration method, a transmission method, a network side device and a terminal. The method applied to the network side device comprises: sending indication information to the terminal, the indication information being used for indicating transmission parameters of the uplink channel, the transmission parameters corresponding to: N uplink channels, and / or at least two target transmissions of a target uplink channel; N is an integer greater than 1. It can be seen that the network side device of the application can use one indication information to simultaneously indicate the transmission parameters corresponding to the N uplink channels and / or the transmission parameters corresponding to the at least two target transmissions of the target uplink channel, thereby reducing the signaling overhead.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to an uplink channel configuration method, transmission method, network-side device, and terminal. Background Technology

[0002] In existing communication systems, there are two types of uplink channels: PUSCH (Physical Uplink Shared Channel) and PUCCH (Physical Uplink Control Channel). PUCCH primarily carries UCI (Uplink Control Information), such as HARQ (Hybrid Automatic Retransmission Request) feedback, channel quality feedback, and scheduling requests. PUSCH primarily carries uplink service data.

[0003] Currently, existing communication systems only support network-side devices in configuring or indicating the transmission parameters of one uplink channel. When a terminal needs to transmit on multiple uplink channels, such as when a terminal transmits uplink channels to multiple TRPs (Transmission and Receiving Points), the network-side devices need to perform multiple configurations or indications, resulting in significant signaling overhead. Summary of the Invention

[0004] This invention provides an uplink channel configuration method, transmission method, network-side device, and terminal to solve the problem of high signaling overhead caused by existing communication systems only supporting network-side device configuration or indication of transmission parameters for one uplink channel.

[0005] To solve the above problems, the present invention is implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide an uplink channel configuration method applied to a network-side device, the method comprising:

[0007] Send indication information to the terminal, the indication information being used to indicate the transmission parameters of the uplink channel, the transmission parameters corresponding to: N uplink channels, and / or, at least two target transmissions of the target uplink channel; N is an integer greater than 1.

[0008] Secondly, embodiments of the present invention provide an uplink channel transmission method applied to a terminal, the method comprising:

[0009] Uplink transmission is performed based on the transmission parameters of the uplink channel, which correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0010] Thirdly, embodiments of the present invention also provide a terminal, the terminal comprising:

[0011] The sending module is used to send indication information to the terminal. The indication information is used to indicate the transmission parameters of the uplink channel. The transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel; N is an integer greater than 1.

[0012] Fourthly, embodiments of the present invention also provide a terminal, the terminal comprising:

[0013] The transmission module is used to transmit uplink channels according to the transmission parameters of the uplink channels, wherein the transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0014] Fifthly, embodiments of the present invention also provide a network-side device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the steps of the uplink channel configuration method as described above.

[0015] In a sixth aspect, embodiments of the present invention also provide a terminal, the terminal including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the uplink channel configuration method as described above.

[0016] In a seventh aspect, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the uplink channel configuration method described above, or the steps of the uplink channel transmission method described above.

[0017] In this embodiment of the invention, the network-side device can use an indication message to simultaneously indicate the transmission parameters corresponding to N uplink channels, and / or the transmission parameters corresponding to at least two target transmissions of the target uplink channel, thereby reducing signaling overhead. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a network system applicable to an embodiment of the present invention;

[0020] Figure 2 This is a flowchart of the uplink channel configuration method provided in an embodiment of the present invention;

[0021] Figure 3a This is one of the schematic diagrams of precoding information and layer number signaling field provided in the embodiments of the present invention;

[0022] Figure 3b This is the second schematic diagram of the precoding information and layer number signaling field provided in the embodiments of the present invention;

[0023] Figure 3c This is the third schematic diagram of the precoding information and layer number signaling field provided in the embodiments of the present invention;

[0024] Figure 4 This is a flowchart of the uplink channel transmission method provided in an embodiment of the present invention;

[0025] Figure 5 This is one of the structural diagrams of the network-side device provided in the embodiments of the present invention;

[0026] Figure 6 This is one of the structural diagrams of the terminal provided in the embodiments of the present invention;

[0027] Figure 7 This is the second structural diagram of the network-side device provided in the embodiments of the present invention;

[0028] Figure 8 This is the second structural diagram of the terminal provided in the embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The terms "first," "second," etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses. Additionally, the use of "and / or" in this application indicates at least one of the connected objects, such as A and / or B and / or C, representing seven possibilities: including A alone, B alone, C alone, and the presence of both A and B, both B and C, both A and C, and the presence of A, B, and C.

[0031] Please see Figure 1 , Figure 1 This is a structural diagram of a network system applicable to an embodiment of the present invention, such as... Figure 1 As shown, it includes a terminal 11 and a network-side device 12, wherein the terminal 11 and the network-side device 12 can communicate with each other.

[0032] In this embodiment of the invention, terminal 11 can also be referred to as UE (User Equipment). Specifically, terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), wearable device, or vehicle-mounted device, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment of the invention.

[0033] Network-side device 12 can be a base station or a TRP, etc. In this embodiment of the invention, the TRP can be defined by at least one of the following: a Control Resource Set (CORESET) or a group of Control Resource Sets; an Explicitly Defined TRP; a Transmission Configuration Indication State, a Transmission Configuration Indication State List, or a Transmission Configuration Indication State Pool (TCI State or TCI State List / Pool); QCL information or QCL group information; spatial relationship information or spatial relationship group information; a Physical Downlink Control Channel (PDCCH) scrambling identifier or a PDCCH scrambling identifier group (PDCCH ScramblingID / or ID group); a Physical Downlink Shared Channel (PDSCH) scrambling identifier or a PDSCH scrambling identifier group (PDSCH ScramblingID / or ID group); a PDCCH Configuration Signaling Element (PDCCH-Config Signaling Element); a PDSCH Configuration Signaling Element (PDSCH-Config Signaling Element).

[0034] For ease of understanding, the following describes some aspects of the embodiments of the present invention:

[0035] I. Regarding multiple antennas

[0036] Radio access technology standards such as LTE (Long Term Evolution) and LTE-A (LTE-Advanced) are built upon MIMO (Multiple Input Multiple Output) and OFDM (Orthogonal Frequency Division Multiplexing) technologies. MIMO technology utilizes the spatial degrees of freedom available in multi-antenna systems to improve peak data rates and system spectral efficiency.

[0037] During the standardization process, the dimensions of MIMO technology have been continuously expanded. In LTE Rel-8, up to four layers of MIMO transmission can be supported. In Rel-9, MU-MIMO (Multi-User MIMO) technology was enhanced, and TM (Transmission Mode)-8 MU-MIMO transmission can support up to four downlink data layers. In Rel-10, the transmission capability of SU-MIMO (Single-User MIMO) was extended to up to eight data layers.

[0038] The industry is further pushing MIMO technology towards three-dimensionality and large-scale implementation. Currently, 3GPP is conducting research and standardization work on NR (New Radio) MIMO. It is foreseeable that in future 5G mobile communication systems, larger-scale MIMO technology with more antenna ports will be introduced.

[0039] Massive MIMO technology uses large-scale antenna arrays, which can greatly improve the system's bandwidth utilization efficiency and support a larger number of access users. Therefore, major research organizations regard Massive MIMO technology as one of the most promising physical layer technologies in next-generation mobile communication systems.

[0040] In Massive MIMO technology, using an all-digital array can achieve maximum spatial resolution and optimal MU-MIMO performance. However, this structure requires a large number of AD / DA conversion devices and a large number of complete RF-baseband processing channels, which will be a huge burden in terms of both equipment cost and baseband processing complexity.

[0041] To avoid the aforementioned implementation costs and equipment complexity, hybrid analog-digital beamforming technology has emerged. This involves adding an analog beamforming stage—simulated beamforming (or analog signal beamforming)—to the front end of the antenna system, building upon traditional digital beamforming. Analog beamforming allows for a relatively simple and coarse match between the transmitted signal and the channel. The equivalent channel dimension formed after analog beamforming is smaller than the actual number of antennas, thus significantly reducing the required AD / DA converters, digital channels, and baseband processing complexity. Residual interference from the analog beamforming portion can be further processed in the digital domain, ensuring the quality of MU-MIMO transmission. Compared to all-digital beamforming, hybrid analog-digital beamforming represents a trade-off between performance and complexity, showing high practical potential in high-frequency, high-bandwidth systems or systems with a large number of antennas.

[0042] II. Regarding the high-frequency band

[0043] Research on next-generation communication systems beyond 4G aims to increase the supported operating frequency bands to above 6 GHz (megahertz), with a maximum of approximately 100 GHz. High-frequency bands have relatively abundant idle frequency resources, providing greater throughput for data transmission. Currently, 3GPP is conducting research and standardization work on mid-to-high frequency bands in NR. High-frequency signals have shorter wavelengths, allowing for the placement of more antenna elements on the same antenna panel compared to low-frequency bands, and enabling the formation of more directional and narrower beams using beamforming technology. Therefore, combining massive MIMO with high-frequency communication is also a future trend.

[0044] III. Regarding Beam Measurement and Reporting

[0045] Analog beamforming is transmitted across the full bandwidth, and each polarization element on the panel of each high-frequency antenna array can only transmit an analog beam in a time-division multiplexed manner. The beamforming weights of the analog beam are achieved by adjusting the parameters of devices such as the RF front-end phase shifter.

[0046] Currently, a polling method is typically used to train simulated beamforming vectors. Each element on each antenna panel, in each polarization direction, sequentially transmits training signals (i.e., candidate beamforming vectors) at predetermined times using time-division multiplexing. After measurement, the terminal sends back a beam report, which the network uses in the next transmission to implement simulated beam transmission. The beam report typically includes reference signal resource identifiers for the optimal transmit beams and the measured received power of each transmit beam. For example, the reference signal resource identifier may include CRI (CSI - RSResource Indicator, Channel State Information Reference Signal Resource Indicator) or SSBRI (SSB Resource Indicator, Synchronization Signal Block Resource Indicator); the received power may include L1 - RSRP (Layer 1 - Reference Signal Received Power).

[0047] IV. About PUCCH (Physical Uplink Control Channel)

[0048] The design principles of PUCCH include:

[0049] To meet different BLER (Block Error Rate) targets, different formats are designed based on the content of the PUCCH transmission. The content of the PUCCH transmission may include at least one of the following: ACK (Acknowledgement) or NACK (Negative Acknowledgement); SR (Scheduling Request); CSI (Channel State Information).

[0050] To meet different latency requirements, such as Short PUCCH which can achieve fast feedback and reduce latency, the shortest latency can be 1 symbol.

[0051] To meet different coverage requirements, PUCCH lengths range from 1 to 14 symbols, and multiple PUCCHs can be transmitted repeatedly, such as Long PUCCH, which has a larger coverage area.

[0052] To satisfy multi-user multiplexing capabilities, the number of UCI (Uplink Control Information) bits carried can be used to achieve non-multi-user multiplexing, multi-user multiplexing, and strong multi-user multiplexing.

[0053] To meet low Cubic Metric or PAPR (Peak-to-Average Power Ratio), a new CGS (Computer Generated Sequence) is introduced for pilots and UCI. Single-carrier DFT-S-OFDM based on DFT (Discrete Fourier Transform) is used to guarantee coverage, while multi-carrier transmission design based on CP-OFDM is used for PUCCH with limited coverage.

[0054] Network-side equipment configures PUCCH-related information for the UE via RRC (Radio Resource Control) signaling. The IE (Information Element) for configuring UE-specific PUCCH parameters per BWP (Bandwidth Part) is PUCCH-Config, which includes: PUCCH resource information, PUCCH format, PDSCH and its ACK / NACK timing information, PUCCH Spatial Relation information, etc. The IE for configuring Cell-specific PUCCH parameters is PUCCH-ConfigCommon, which includes: PUCCH resource information, group frequency hopping information, etc. In addition, PUCCH path loss and power control related information are also configured.

[0055] The Spatial Relation information of PUCCH represents the spatial relationship between Reference RS and PUCCH, that is, the uplink spatial parameter information used to transmit PUCCH. Reference RS can be SSB, CSI-RS (CSI reference signal) or SRS (Sounding Reference Signal). If the network-side device configures multiple Spatial Relations through RRC signaling, the network-side device also needs to select one of them through MAC CE (Medium Access Control-Control Element) command.

[0056] V. About PUSCH (Physical Uplink Shared Channel)

[0057] The PUSCH is a channel used for transmitting uplink data and signaling. Network-side equipment configures PUSCH-related information via RRC signaling. The IE (Entity Configuring) for UE-Specific PUSCH parameters for a specific BWP is PUSCH-Config, which includes: data scrambling information, precoding information, DMRS (Demodulation Reference Signal) information, power control information, frequency hopping information, resource allocation information, MCS (Modulation and Coding Scheme) information, and RBG (Resource Block Group) information. The IE for Cell-Specific PUSCH parameter configuration is PUSCH-ConfigCommon, which includes: group frequency hopping information, resource allocation information, etc. Additionally, PUSCH power control information is also configured.

[0058] The Spatial Relation information of PUSCH is that when the DCI carried by PDCCH schedules PUSCH, each SRI Codepoint in the SRI field of the DCI indicates an SRI, which is used to indicate the Spatial Relation of PUSCH.

[0059] For Codebook-Based PUSCH, the signaling field "Precoding information and number of layers" in the DCI indicates information about the codebook used by the PUSCH. This includes information such as TPMI (Transmitted Precoding Matrix Indicator) and Layer number information (or RI (Rank indicator)). The network-side equipment determines the codebook information by measuring the SRS transmitted by the UE. The UE can obtain information about the codebook used to send the PUSCH based on this signaling field.

[0060] For Non-codebook Based PUSCH, the signaling field "SRSresource indicator" (SRI signaling field) in DCI is used to indicate the precoding information of PUSCH, that is, the PUSCH precoding weight is the same as the SRS resource indicated by this signaling field.

[0061] V. In the embodiments of the present invention, beam information, spatial relation information, spatial domain transmission filter information, spatial filter information, and QCL (quasi-co-location) information have the same meaning and all refer to beam information.

[0062] Existing communication systems only support network-side devices configuring or indicating transmission parameters for an uplink channel (such as a PUSCH or a PUCCH), such as precoding information.

[0063] This invention can support network-side devices in configuring or indicating transmission parameters for multiple uplink channels (e.g., each channel is sent to a different TRP), and / or for different parts of the target uplink channel (e.g., each transmission during repeated transmission, transmission before and after frequency hopping during frequency hopping, or different parts of the channel transmitted at different times), such as precoding information, spatial relationship information (beams), etc.

[0064] The following describes the uplink channel configuration method according to an embodiment of the present invention.

[0065] See Figure 2 , Figure 2 This is a flowchart of the uplink channel configuration method provided in an embodiment of the present invention. Figure 2 The uplink channel configuration method shown is applied to network-side devices.

[0066] like Figure 2 As shown, the uplink channel configuration method of this embodiment of the invention may include the following steps:

[0067] Step 201: Send indication information to the terminal. The indication information is used to indicate the transmission parameters of the uplink channel. The transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel; N is an integer greater than 1.

[0068] In this embodiment of the invention, when the transmission parameters correspond to N uplink channels, the indication information can be used to simultaneously indicate the transmission parameters corresponding to the N uplink channels.

[0069] Furthermore, when the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1. In practical applications, M can be less than or equal to N, meaning that one TRP can correspond to one or more uplink channels.

[0070] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information can be used to simultaneously indicate the transmission parameters corresponding to at least two target transmissions of the target uplink channel.

[0071] It should be noted that, in this embodiment of the invention, the number of target uplink channels can be equal to or greater than one. When the number of target uplink channels is greater than one, the indication information used to indicate at least two target transmissions of the target uplink channel can be understood as: the indication information used to indicate the transmission parameters corresponding to at least two target transmissions of each uplink channel in the target uplink channel. Furthermore, the number of target transmissions for each uplink channel in the target uplink channel can be equal or unequal.

[0072] Furthermore, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission can be characterized as: repeated transmission, frequency hopping transmission, or segmented transmission. It should be understood that the content transmitted in each segmented transmission can be a different part of the target content.

[0073] It should be noted that if the transmission parameters correspond to N uplink channels and at least two target transmissions of the target uplink channel, then the target uplink channel can be understood as at least one of the aforementioned N uplink channels.

[0074] In this embodiment of the invention, the indication information can be transmitted through at least one of RRC layer information, MAC layer information, and physical layer control information; wherein, the RRC layer information includes RRC signaling; the MAC layer information includes MAC CE; and the physical layer control information includes DCI. In implementation, the specific type of information carrying the indication information can be determined based on the transmission parameter type of the uplink channel indicated by the indication information.

[0075] The transmission information may include, but is not limited to, at least one of the following: uplink channel transmission scheme, precoding information, spatial relationship information, and transmission count information.

[0076] In the uplink channel configuration method of this embodiment, the network-side device can use an indication message to simultaneously indicate the transmission parameters corresponding to N uplink channels, and / or the transmission parameters corresponding to at least two target transmissions of the target uplink channel, thereby reducing signaling overhead.

[0077] In this embodiment of the invention, the uplink channel can be PUSCH and / or PUCCH. The scenarios where the uplink channel is PUSCH and PUCCH are described below.

[0078] Scenario 1: Uplink channel is PUSCH.

[0079] In this scenario, optionally, the indication information is transmitted via downlink control information (DCI).

[0080] In one embodiment, optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0081] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0082] During implementation, the first signaling domain can be a newly added signaling domain in the DCI or an existing signaling domain in the DCI.

[0083] Optionally, the first signaling field is a precoding information and layer number signaling field, wherein the precoding information and layer number signaling field uses a first code point to indicate the uplink transmission scheme of the PUSCH. The precoding information and layer number signaling field is the "Precoding Information and Number of Layers" mentioned above.

[0084] Unlike existing technologies that use DCI format 0_0 to indicate uplink diversity transmission and DCI format 0_1 ​​to indicate codebook or non-codebook based PUSCH, this implementation can use precoding information and the first code point of the layer signaling field to indicate: uplink diversity transmission PUSCH, codebook-based PUSCH, or non-codebook-based PUSCH. This eliminates the need for the terminal to use multiple formats during blind detection, thereby reducing overhead.

[0085] In practice, the specific form of the uplink transmission scheme of the PUSCH indicated by the first code point is determined based on the type and / or value of the first code point.

[0086] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0087] It should be understood that the special value of TPMI is different from the regular value of TPMI; the special value of the layer number is different from the regular value of the layer number. In specific implementation, the special values ​​can be predetermined, and the special values ​​indicating uplink diversity transmission of PUSCH and indicating non-codebook PUSCH are different, so as to improve the accuracy of the terminal in identifying the uplink transmission scheme of PUSCH.

[0088] For ease of understanding, please refer to the following: Figure 3a and Figure 3b . Figure 3a This represents the existing precoded information and layer signaling field representation. Figure 3b This is one representation of the precoding information and layer signaling field in an embodiment of the present invention.

[0089] Figure 3a The precoding information and layer number signaling field shown consists of 4 bits, including 16 code points. Among them, Figure 3a Code points 0 to 11 are non-reserved code points, including the indicated layer value and TPMI value, and Figure 3a The layer values ​​and TPMI values ​​indicated by the reserved code points in China and Africa are normal values; code points 12 to 15 are reserved code points.

[0090] Figure 3b The precoding information and layer signaling fields shown have been modified and expanded. Figure 3a The precoding information and code points in the layer signaling domain are obtained. Specifically, Figure 3b The signaling fields showing the precoding information and layer number are: Figure 3a The TPMI value of code point 4 in 3a was changed from 0 to a special value of 100; the layer value of code point 9 in 3a was changed from 2 to a special value of 10; code point 12 in 3a was used to indicate the uplink transmission scheme of PUSCH; and code points 16 to 31 were added based on 3a.

[0091] because Figure 3b The TPMI value of code point 4 in the code is a special value; therefore, when precoding information and layer signaling fields can utilize... Figure 3b When code point 4 in the PUSCH indicates the uplink transmission scheme, Figure 3b Code point 4 in the code can be used to indicate: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0092] because Figure 3b The layer value of code point 9 in the code is a special value. Therefore, when the precoding information and the layer number signaling field can utilize... Figure 3b When code point 9 in the PUSCH indicates the uplink transmission scheme, Figure 3b Code point 9 in the code can be used to indicate: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0093] because Figure 3b Code point 12 in the code is a reserved code point before the uplink transmission scheme indicating PUSCH; therefore, when the precoding information and layer number signaling field can utilize... Figure 3b When code point 12 in the PUSCH indicates the uplink transmission scheme, Figure 3b Code point 12 can be used to indicate: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0094] because Figure 3b Code points 16 to 31 are newly added code points. Therefore, the precoding information and layer number signaling field can use any of the code points 16 to 31 to indicate: uplink diversity PUSCH or non-codebook PUSCH.

[0095] It should be noted that for reserved code points indicating uplink diversity transmission of PUSCH or non-codebook PUSCH: these reserved code points can be inherent to precoding information and layer number signaling fields, such as... Figure 3b The code point 12 is shown.

[0096] However, in practical applications, the reserved code point can be understood as a reserved code point derived from the precoding information and the non-reserved code point in the layer signaling domain.

[0097] For easier understanding, please refer to Figure 3a , Figure 3b This is another representation of the precoding information and layer signaling field in the embodiments of the present invention.

[0098] Figure 3b The precoding information and layer number signaling field shown are modified by Figure 3a The precoding information and code points in the layer signaling domain are obtained. Specifically, Figure 3b The signaling field showing precoding information and layer number: Code points 4 through 11, excluding those indicating layer 1, are converted into reserved code points. This allows the terminal to use the converted reserved code points to indicate either uplink diversity transmission of the PUSCH or a non-codebook PUSCH.

[0099] The implementation principle of converting non-reserved code points in precoding information and layer signaling fields into reserved code points is explained in detail below:

[0100] In this embodiment of the invention, the number of layers in the PUSCH can be fixed at 1. Since the number of layers in the PUSCH is fixed at 1, compared to scenarios where the number of layers in the PUSCH is greater than 1, the amount of layer content that the precoding information and layer number signaling fields in this embodiment need to indicate is reduced. Thus, this embodiment can convert the code points used to indicate the content of layers other than layer 1 in the precoding information and layer number signaling fields of scenarios where the number of layers in the PUSCH is greater than 1 into reserved code points for indicating other types of transmission parameters, such as uplink transmission schemes, precoding information, or beam information for the uplink channel. In other words, this embodiment can fix the number of layers in the PUSCH to 1, allowing the precoding information and layer number signaling fields to indicate more types of transmission parameters using the same number of bits.

[0101] Of course, embodiments of the present invention can also reduce the number of bits in the precoding information and the layer number signaling field by fixing the number of layers of PUSCH to 1, so as to use the number of bits saved in the precoding information and the layer number signaling field to form a new signaling field for indicating other types of transmission parameters.

[0102] For example, assuming that for a PUSCH with 4 layers, the precoding information and layer number signaling field need to use 6 bits to indicate the transmission parameters; for a PUSCH with 1 layer, the precoding information and layer number signaling field only need to use 2 bits to indicate the transmission parameters, then the network-side device can reduce the number of bits in the precoding information and layer number signaling field to 2, and use the saved 4 bits to form a new indication field.

[0103] In addition, embodiments of the present invention can also reduce inter-layer interference and improve transmission performance by fixing the number of layers of PUSCH to 1.

[0104] In an optional implementation, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0105] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0106] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0107] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0108] Regarding the implementation of the DCI using N precoding information and the layer number signaling field to indicate N codebook-based PUSCH precoding information, it should be understood that the DCI uses 1 precoding information and the layer number signaling field to indicate 1 codebook-based PUSCH precoding information.

[0109] In addition, the DCI can also determine the number of precoding information and layer signaling fields included in the DCI based on the number of TRPs corresponding to the N codebook-based PUSCHs.

[0110] For example, if N codebook-based PUSCHs correspond to M TRPs, the DCI can use M precoding information and layer number signaling field to indicate the precoding information of N codebook-based PUSCHs, wherein each precoding information and layer number signaling field can be used to indicate the precoding information of a codebook-based PUSCH corresponding to one TRP.

[0111] It should be noted that, in the embodiments of the present invention, for codebook-based PUSCH, its precoding information can be understood as codebook information.

[0112] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0113] The reserved code point can be understood as a reserved code point converted from the precoding information and the non-reserved code point in the layer signaling field. For details, please refer to the relevant description of Implementation Method 1, which will not be repeated here.

[0114] It should be noted that when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field can be a newly added signaling field. Furthermore, in practical applications, the precoding information for the uplink diversity transmission PUSCH can be predefined.

[0115] In specific implementation, when transmitting uplink diversity PUSCH, the terminal can use Cycling Precoding to determine the precoding information for the uplink diversity PUSCH. For example, if the predefined or second indication field indicates that the precoding information for the uplink diversity PUSCH is precoding information 1 and precoding information 2, then the terminal can use precoding information 1 for the first uplink diversity PUSCH transmission; the terminal can use precoding information 2 for the second uplink diversity PUSCH transmission; the terminal can use precoding information 1 for the third uplink diversity PUSCH transmission; the terminal can use precoding information 2 for the fourth uplink diversity PUSCH transmission, and so on.

[0116] In this embodiment, further, when the precoding information corresponds to at least two target transmissions of the target PUSCH, the DCI also includes a third signaling field, which is used to indicate the number of transmissions of the target PUSCH.

[0117] In practical applications, the third signaling field can explicitly or implicitly indicate the number of transmissions of the target transmission.

[0118] Specifically, for a third signaling field that explicitly indicates the number of transmissions of the target transmission, the third signaling field may include the specific number of transmissions P of the target transmission.

[0119] For the third signaling field that implicitly indicates the number of transmissions of the target transmission, the third signaling field does not include the specific number of transmissions P of the target transmission, but it can include other information that can be used to indicate the number of transmissions of the target transmission. For example, if the target transmission is a frequency-hopping transmission, the third signaling field can indicate the number of transmissions of the frequency-hopping transmission by carrying the PRB (Physical Resource Block) corresponding to each frequency-hopping transmission. For example, if the terminal detects that the third signaling field indicates 3 PRBs before and after the frequency hopping, it can determine that the number of transmissions of the frequency-hopping transmission is 3.

[0120] In this embodiment, the second signaling field can be a newly added signaling field. Of course, the second signaling field can also be an existing signaling field. Optionally, if the precoding information corresponds to at least two target transmissions of a codebook-based target PUSCH, the second signaling field can be the precoding information and the layer number signaling field; or, if the precoding information corresponds to at least two target transmissions of a non-codebook-based target PUSCH, the second signaling field is a Probe Reference Resource Indication (SRI) signaling field. Specifically, the precoding information, the layer number signaling field, and the SRI signaling field can utilize precoding information that indicates the PUSCH using bits or code points saved by fixing the layer number to 1.

[0121] In this embodiment, the second signaling field may indicate the precoding information for each of the at least two target transmissions of the target transmission channel. Alternatively, the second signaling field may indicate only the precoding information for each of the S target transmissions included in the at least two transmissions of the target transmission channel.

[0122] For scenarios where the second signaling field only indicates the precoding information of each of the S target transmissions included in at least two transmissions of the target transmission channel, the specific explanation is as follows:

[0123] In one implementation, the terminal can cyclically utilize the precoding information from each of the S target transmissions based on a preset mode to perform at least two target transmissions on the target transmission channel. The preset mode can be pre-configured by the network-side device via higher-layer signaling, or predefined in the protocol and indicated by a second signaling field. For example, if the number of transmissions on the target transmission channel is 4, and the second signaling field indicates that the precoding information for the first transmission of the target transmission channel is precoding information 1, and indicates that the precoding information for the second transmission of the target transmission channel is precoding information 2, then when performing 4 target transmissions on the target transmission channel, the terminal can sequentially utilize: precoding information 1, precoding information 2, precoding information 1, precoding information 2; or, precoding information 1, precoding information 2, precoding information 2, precoding information 1, etc. In another implementation, the terminal can use the precoding information of each target transmission in the S target transmissions indicated by the second signaling field to transform the precoding information of each target transmission in at least two target transmissions of the target transmission channel, and then use the transformed precoding information of each target transmission in at least two target transmissions to perform at least two target transmissions.

[0124] Scenario 2: Uplink channel is PUCCH.

[0125] In this scenario, optionally, the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information;

[0126] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0127] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0128] Preferably, the first sub-indication information can be used to indicate Q spatial relationship information of PUCCH on the low frequency FR (Frequency Range) 1.

[0129] In practical applications, the first sub-indication information can be transmitted via RRC signaling.

[0130] When Q equals N, in one implementation, the indication information may further include second sub-indication information, which is used to indicate the spatial relationship information of each of the N PUCCHs. In another implementation, the Q spatial relationship information can be used as the spatial relationship information of each PUCCH in a preset order, in which case the second sub-indication information is not needed, thus reducing signaling overhead.

[0131] Furthermore, when Q is greater than N, the indication information also includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0132] In practical applications, the second sub-indication information can be MAC CE. The second sub-indication information is used to select spatial relationship information for each of the N PUCCHs.

[0133] Furthermore, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0134] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0135] For the scenario where G equals 1, one set of spatial relationship information includes Q spatial relationship information pieces. Therefore, the indication information may include second sub-indication information, used to select spatial relationship information for each of the N PUCCHs. Alternatively, the Q spatial relationship information pieces can be used as the spatial relationship information for each PUCCH in a preset order, in which case the second sub-indication information is not needed.

[0136] For scenarios where G equals N, the network-side device configures one set of spatial relationship information for each of the N PUCCHs. If the number of spatial relationship information in the spatial relationship information group corresponding to a certain PUCCH is greater than 1, the network-side device can also send a second sub-indication information to select one spatial relationship information from its corresponding spatial relationship information group for that PUCCH.

[0137] For scenarios where G equals N PUCCH packets, it should be understood that for each spatial relationship information group in G groups, the number of spatial relationship information included is greater than or equal to the number of PUCCHs included in the corresponding PUCCH group. If the number of spatial relationship information corresponding to a certain PUCCH group is greater than the number of PUCCHs, the network-side device can send a second sub-indication information for each PUCCH in that group, selecting spatial relationship information from the spatial relationship information group corresponding to that group of PUCCHs. In this embodiment of the invention, the present invention does not limit the grouping rules for N PUCCHs. For example, the grouping rule for N PUCCHs can be: grouping PUCCHs corresponding to the same TRP into one group, but it is not limited to this.

[0138] Scenario 3: The uplink channel is PUCCH or PUSCH.

[0139] In this scenario, optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0140] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0141] It should be noted that the number of spatial relationship information is equal to the number of target uplink channels, that is, each uplink channel in the target uplink channels corresponds to one piece of spatial relationship information.

[0142] In practical applications, the third sub-indication information in this scenario can be transmitted via DCI. Preferably, the indication information can be used to indicate the spatial relationship information of at least two target transmissions on the target uplink channel at high frequency FR2.

[0143] In the scenario where the number of spatial relationship information is equal to P, the third sub-indication information can be used for the spatial relationship information of each of the at least two target transmissions in the target uplink channel.

[0144] In scenarios where the amount of spatial relationship information is less than the number of transmissions of the target uplink channel, the terminal can reuse the spatial relationship information cyclically. Optionally, when the terminal performs at least two target transmissions on the target uplink channel, J target transmissions of the at least two target transmissions on the target uplink channel can reuse the first spatial relationship information from the spatial relationship information for transmission. That is, the terminal can reuse the first spatial relationship information cyclically J times. It should be understood that J is greater than 1 and less than or equal to the number of transmissions of the target transmission channel.

[0145] It should be noted that the number of first spatial relationship information can be equal to or greater than 1. When the number of first spatial relationship information is greater than 1, the number of transmissions of the target transmission corresponding to each first spatial relationship information can be equal or unequal.

[0146] Further, the J target transmissions can be any of the following: an odd-numbered target transmission in at least two target transmissions of the target uplink channel; an even-numbered target transmission in at least two target transmissions of the target uplink channel; the first J target transmissions in at least two target transmissions of the target uplink channel; or the last J target transmissions in at least two target transmissions of the target uplink channel. However, it should be understood that the present invention is not therefore limited to selecting the J target transmissions from at least two target transmissions.

[0147] In practical applications, the terminal can also cyclically utilize the spatial relationship information during at least two target transmissions on the target uplink channel, following the transmission order. Specifically, the cyclical nature can be either sequential or reverse. For example, suppose the terminal needs to perform six target transmissions on the target uplink channel, but the third sub-indication information only indicates three spatial relationship information points for the target uplink channel: spatial relationship information a, spatial relationship information b, and spatial relationship information c. For sequential cyclical transmission, the spatial relationship information used by the terminal during the six target transmissions on the target uplink channel could be: spatial relationship information a, spatial relationship information b, spatial relationship information c, spatial relationship information a, spatial relationship information b, and spatial relationship information c. For reverse cyclical transmission, the spatial relationship information used by the terminal during the six target transmissions could be: spatial relationship information a, spatial relationship information b, spatial relationship information c, spatial relationship information c, spatial relationship information b, and spatial relationship information a.

[0148] In scenarios where the amount of spatial relationship information exceeds the number of transmissions for the target uplink channel, the terminal can select spatial relationship information from the spatial relationship information for each of the at least two target transmissions for the target uplink channel. Optionally, when performing at least two target transmissions for the target uplink channel, the terminal can use the second spatial relationship information from the spatial relationship information for the at least two target transmissions of the target uplink channel. It should be noted that the amount of the second spatial relationship information is equal to the number of transmissions for the target uplink channel.

[0149] Further, the second spatial relationship information is: the P spatial relationship information items that appear first in the spatial relationship information; or, the second spatial relationship information is: the P spatial relationship information items that have the smallest spatial distance to the target spatial relationship information; wherein, the target spatial relationship information is the spatial relationship information used in the historical transmissions of the uplink channel corresponding to at least two target transmissions of the target uplink channel; P is the number of transmissions of the target uplink channel. However, it should be understood that the present invention does not therefore limit the selection mode for choosing the second spatial relationship information from the spatial relationship information.

[0150] It should be noted that the various optional implementation methods described in the embodiments of the present invention can be combined with each other or implemented individually, and the embodiments of the present invention do not limit this.

[0151] See Figure 4 , Figure 4 This is a flowchart of the uplink channel transmission method provided in an embodiment of the present invention. Figure 4 The uplink channel transmission method shown can be applied to terminals.

[0152] like Figure 4 As shown, the uplink channel transmission method of this embodiment of the invention may include the following steps:

[0153] Step 401: Perform uplink channel transmission according to the uplink channel transmission parameters, wherein the transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0154] In practice, the transmission parameters of the uplink channel can be predefined and / or configured by the network-side equipment.

[0155] Optionally, the transmission parameters include: a predefined number of uplink channel layers, wherein the number of layers is 1.

[0156] Fixing the number of uplink channels to 1 has at least the following advantages: on the one hand, it can reduce inter-layer interference and improve transmission performance; on the other hand, it can save the number of bits indicating the number of layers, so that the saved bits can be used to indicate other types of transmission parameters.

[0157] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the transmission parameters include: a first association between the number of transmissions of the target uplink channel and precoding information; and / or, a second association between the number of transmissions of the target uplink channel and spatial relationship information.

[0158] In this way, when the terminal performs at least two transmissions on the target uplink channel, it can determine the precoding information and / or spatial relationship information for each transmission without the need for instructions from the network side equipment, thereby reducing signaling overhead.

[0159] Optionally, before performing uplink channel transmission based on the uplink channel transmission parameters, the method further includes:

[0160] The device receives indication information sent by the network-side device, which is used to indicate the transmission parameters of the uplink channel.

[0161] In this embodiment, the transmission information of the uplink channel is configured by the network-side device.

[0162] Optional:

[0163] When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or,

[0164] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

[0165] Optionally, the TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; a PDCCH configuration signaling element; or a PDSCH configuration signaling element.

[0166] Optionally, when the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

[0167] Optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0168] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0169] Optionally, the first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of the PUSCH.

[0170] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0171] Optionally, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0172] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0173] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0174] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0175] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0176] Optionally, if the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI may further include a third signaling field, which indicates the number of transmissions of the target PUSCH.

[0177] Optional:

[0178] When the precoding information corresponds to at least two target transmissions of the codebook-based target PUSCH, the second signaling field is the precoding information and the layer number signaling field; or,

[0179] In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

[0180] Optionally, the uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information.

[0181] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0182] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0183] Optionally, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0184] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0185] Optionally, when Q is greater than N, the indication information further includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0186] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0187] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0188] Optionally, if the amount of spatial relationship information is less than the number of transmissions of the target uplink channel, the uplink channel transmission according to the transmission parameters of the uplink channel includes: transmitting the first spatial relationship information in the spatial relationship information multiplexed in J target transmissions of the target uplink channel.

[0189] Optionally, the Jth target transmission can be any of the following:

[0190] At least two target transmissions in the target uplink channel, an odd number of target transmissions;

[0191] The target uplink channel has at least two target transmissions, the even number of which are target transmissions.

[0192] The first J target transmissions of at least two target transmissions in the target uplink channel;

[0193] The latter Jth target transmission in at least two target transmissions of the target uplink channel.

[0194] Optionally, if the number of spatial relationship information is greater than the number of transmissions of the target uplink channel, the step of transmitting the uplink channel according to the transmission parameters of the uplink channel includes: at least two target transmissions of the target uplink channel are transmitted using the second spatial relationship information in the spatial relationship information, wherein the number of the second spatial relationship information is equal to the number of transmissions of the target uplink channel.

[0195] Optional:

[0196] The second spatial relationship information is: the P spatial relationship information items that appear first in the spatial relationship information sequence; or,

[0197] The second spatial relationship information is: the P spatial relationship information that has the smallest spatial distance to the target spatial relationship information;

[0198] Wherein, the target spatial relationship information is the spatial relationship information used in the historical transmission of the uplink channel corresponding to at least two target transmissions of the target uplink channel; P is the number of transmissions of the target uplink channel.

[0199] It should be noted that this embodiment is as a comparison with... Figure 2 The implementation methods of the terminals corresponding to the method embodiments are the same as those described in the above method embodiments, and the same beneficial effects can be achieved. To avoid repetition, further details will not be provided here.

[0200] Furthermore, the various optional implementation methods described in the embodiments of the present invention can be combined with each other or implemented individually, and the embodiments of the present invention do not limit this.

[0201] The uplink channel transmission method of this embodiment allows the terminal to transmit uplink channels based on the transmission parameters corresponding to N uplink channels and / or the transmission parameters corresponding to at least two target transmissions of the target uplink channel, thereby improving transmission performance.

[0202] The main idea and specific process of this invention are as follows:

[0203] 1) For codebook-based PUSCH:

[0204] a) Modify or expand the signaling field “Precoding information and number of layers” in DCI.

[0205] i. For each PUSCH sent by the UE to each TRP, a signaling field “Precoding information and number of layers” is used in the DCI.

[0206] ii. For PUSCH sent by the UE to multiple TRPs, the signaling field "Precoding information and number of layers" is shared in the DCI. When the DCI uses this signaling field to indicate the codebook information of the PUSCH, the signaling value of the signaling field simultaneously instructs the UE to send the codebook information of the PUSCH to multiple TRPs.

[0207] b) Fix the number of layers in PUSCH to 1.

[0208] c) Use DCI to dynamically indicate the switching between uplink diversity PUSCH and codebook-based PUSCH.

[0209] i. Existing technology uses DCI format 0_0 to indicate uplink diversity transmission and DCI format 0_1 ​​to indicate codebook or non-codebook based PUSCH.

[0210] ii. Signaling design for dynamically indicating the above-mentioned switching functions in DCI:

[0211] 1. Use the newly added signaling bits.

[0212] 2. Alternatively, use the unused codepoints or bits in the signaling field "Precoding information and number of layers" saved by fixing the number of layers in b to 1.

[0213] 3. Alternatively, a special value of TPMI corresponding to a codepoint can be used in the signaling field "Precoding information and number of layers" to indicate uplink diversity transmission.

[0214] iii. When the instruction uses uplink transmit diversity, the precoding information used can be any of the following:

[0215] 1. Use predefined pre-encoded information.

[0216] 2. Use the new bits of DCI or the unused codepoints or bits in the signaling field "Precoding information and number of layers" in b above to indicate the precoding information.

[0217] d) Use DCI to indicate information on repeated uplink data transmissions.

[0218] i. Existing technology uses the RRC parameter "Pusch-Aggregation Factor" to indicate the number of times the upstream data is repeated.

[0219] ii. Signaling design for DCI indicating the number of uplink retransmissions:

[0220] 1. Use the newly added signaling bits.

[0221] 2. Alternatively, use the unused codepoints or bits in the signaling field "Precoding information and number of layers" saved by fixing the number of layers in b to 1.

[0222] iii. Furthermore, in each transmission of a repeated transmission, different uplink beam information (Spatial Relation information) can be used, which can be indicated by the DCI to indicate the Spatial Relation information used for each PUSCH transmission.

[0223] e) Use DCI to indicate the precoded information for each transmission in a repeated transmission, and / or to indicate the precoded information after each frequency hopping in a frequency hopping transmission.

[0224] i. Precoding information can be associated or mapped with each repeated transmission and / or frequency hopping transmission.

[0225] ii. Signaling design for the precoded information:

[0226] 1. Use the new signaling field indication;

[0227] 2. Alternatively, use the new signaling value in the above signaling field "Precoding information and number of layers".

[0228] 2) For non-codebook based PUSCH

[0229] a) Fixing the number of layers in PUSCH to 1 (may not save signaling overhead).

[0230] b) Use DCI to dynamically indicate information on uplink data retransmission and / or frequency hopping transmission.

[0231] i. DCI indicates the precoded information for each transmission during repeated transmissions and / or frequency-hopping transmissions of PUSCH.

[0232] 1. Each repeated transmission and / or frequency hopping transmission can be associated with or mapped to the signaling value of the signaling field "SRS resource indicator".

[0233] ii. When the UE sends PUSCH to multiple TRPs, the DCI is used to instruct the UE to transmit precoded information for each transmission when repeatedly transmitting and / or frequency-hopping PUSCH to each TRP.

[0234] 1. The TRP to which the UE sends PUSCH, each repeated transmission, frequency hopping transmission, and the signaling value of the signaling field "SRSresource indicator" can be associated or mapped.

[0235] 3) For PUCCH transmission

[0236] a) The network uses RRC signaling to configure multiple sets of spatial relation information for PUCCH, with each set corresponding to a TRP.

[0237] i. When the number of spatial relation messages within a group is greater than 1, the network uses MAC CE to select one for each TRP.

[0238] b) The network uses RRC signaling to configure multiple sets of spatial relation information for PUCCH, with each set corresponding to a set of TRPs.

[0239] i. The network uses MAC CE to select one of the corresponding spatial relation information for each TRP in each group of TRPs.

[0240] c) The network uses RRC signaling to configure the spatial relation information of PUCCH, and then uses MAC CE to select the spatial relation information of PUCCH for each TRP.

[0241] d) The above a to c can be used for PUCCH transmission on FR1.

[0242] 4) Beams for PUSCH and PUCCH

[0243] a) Can only be used for PUSCH and PUCCH transmission on FR2.

[0244] b) When the number of repeated transmissions specified in the network configuration or indication is the same as the number of spatial relation messages.

[0245] i. Predefine the association or mapping relationship between each transmission and spatial relation information. Then, the network indicates the above pattern, that is, the spatial relation information used in each transmission.

[0246] ii. Alternatively, extend the signaling field used to indicate spatial relation information to indicate the spatial relation information used in each transmission.

[0247] iii. The above instructions can be given in DCI.

[0248] c) When the number of repeated transmissions specified in the network configuration or indication differs from the number of spatial relation messages.

[0249] i. If the former is less than the latter, the number of spatial relation information can be the same as the number of repeated transmissions, for example, by truncating according to preset rules.

[0250] ii. The former is greater than the latter, allowing the same spatial relation information to be used for multiple transmissions during repeated transmissions. For example, spatial relation information can be reused repeatedly.

[0251] The main innovative points and protection points of this invention

[0252] For Codebook-based PUSCH:

[0253] Modify or extend the signaling field “Precoding information and number of layers” to indicate that precoding information for PUSCH is sent to multiple TRPs;

[0254] The number of layers is fixed at 1;

[0255] Use DCI to dynamically indicate the switching between uplink diversity PUSCH and codebook-based PUSCH;

[0256] Use DCI to indicate information about repeated transmission of uplink data;

[0257] Use DCI to indicate the precoded information for each transmission in repeated transmissions, and / or to indicate the precoded information after each frequency hopping in frequency hopping transmissions;

[0258] Use DCI to indicate the spatial relationship information of each transmission in repeated transmission, and / or to indicate the spatial relationship information after each frequency hopping in frequency hopping transmission.

[0259] For non-codebook based PUSCH:

[0260] The number of layers is fixed at 1;

[0261] When using DCI to indicate the precoded information and / or spatial relationship information for each transmission of PUSCH in repeated transmissions and / or frequency hopping transmissions;

[0262] When using DCI to instruct the UE to repeatedly transmit and / or frequency-hopping PUSCH to each TRP, precoded information and / or spatial relationship information are transmitted each time.

[0263] For PUCCH transmission on FR1:

[0264] The network uses RRC+MAC CE for the Spatial Relation information of the PUCCH of each TRP.

[0265] For PUSCH and PUCCH on FR2:

[0266] When the number of repeated transmissions configured or indicated by the network is the same as the number of spatial relation messages, the association or mapping relationship between each transmission and the spatial relation messages is predefined.

[0267] When the number of repeated transmissions specified in the network configuration or indication differs from the number of spatial relation messages, the same number of spatial relation messages as the number of repeated transmissions is used, or the same spatial relation messages are used for multiple transmissions during repeated transmissions.

[0268] The effects and benefits of this invention: This invention proposes a novel indication and transmission method for scenarios involving UE and multiple TRP connections, to support the transmission of PUSCH and PUCCH between the UE and multiple TRPs. In fact, this invention not only supports multi-TRP scenarios, but broadly speaking, it can be used for the UE to send multiple PUSCH / PUCCHs or different parts of a channel, i.e., multiple target transmissions of a single channel. In terms of service type, it is applicable to various services such as URLLC (Ultra-Reliable and Low Latency Communications).

[0269] See Figure 5 , Figure 5 This is one of the structural diagrams of the network-side device provided in the embodiments of the present invention. For example... Figure 5 As shown, the network-side device 500 includes:

[0270] The transmission module 501 is used to transmit uplink channels according to the transmission parameters of the uplink channels, wherein the transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0271] The sending module is used to send indication information to the network-side device. The indication information is used to indicate the transmission parameters of the uplink channel. The transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel; N is an integer greater than 1.

[0272] Optional:

[0273] When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or,

[0274] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

[0275] Optionally, the TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; a PDCCH configuration signaling element; or a PDSCH configuration signaling element.

[0276] Optionally, when the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

[0277] Optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0278] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0279] Optionally, the first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of the PUSCH.

[0280] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0281] Optionally, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0282] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0283] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0284] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0285] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0286] Optionally, if the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI may further include a third signaling field, which indicates the number of transmissions of the target PUSCH.

[0287] Optional:

[0288] When the precoding information corresponds to at least two target transmissions of the codebook-based target PUSCH, the second signaling field is the precoding information and the layer number signaling field; or,

[0289] In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

[0290] Optionally, the uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information.

[0291] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0292] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0293] Optionally, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0294] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0295] Optionally, when Q is greater than N, the indication information further includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0296] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0297] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0298] Network-side device 500 can implement the present invention. Figure 2 The various processes in the method embodiments, and the methods for achieving the same beneficial effects, will not be described again here to avoid repetition.

[0299] See Figure 6 , Figure 6 This is one of the structural diagrams of the terminal provided in the embodiments of the present invention. For example... Figure 6 As shown, terminal 600 includes:

[0300] The transmission module 601 is used to transmit uplink channels according to the transmission parameters of the uplink channels, wherein the transmission parameters correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0301] Optionally, the transmission parameters include: a predefined number of uplink channel layers, wherein the number of layers is 1.

[0302] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the transmission parameters include: a first association between the number of transmissions of the target uplink channel and precoding information; and / or, a second association between the number of transmissions of the target uplink channel and spatial relationship information.

[0303] Optionally, the terminal 600 further includes:

[0304] The receiving module is used to receive indication information sent by the network-side device before transmitting the uplink channel according to the transmission parameters of the uplink channel. The indication information is used to indicate the transmission parameters of the uplink channel.

[0305] Optional:

[0306] When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or,

[0307] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

[0308] Optionally, the TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; a PDCCH configuration signaling element; or a PDSCH configuration signaling element.

[0309] Optionally, when the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

[0310] Optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0311] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0312] Optionally, the first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of the PUSCH.

[0313] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0314] Optionally, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0315] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0316] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0317] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0318] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0319] Optionally, if the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI may further include a third signaling field, which indicates the number of transmissions of the target PUSCH.

[0320] Optional:

[0321] When the precoding information corresponds to at least two target transmissions of the codebook-based target PUSCH, the second signaling field is the precoding information and the layer number signaling field; or,

[0322] In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

[0323] Optionally, the uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information.

[0324] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0325] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0326] Optionally, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0327] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0328] Optionally, when Q is greater than N, the indication information further includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0329] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0330] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0331] Optionally, if the number of spatial relationship information is less than the number of transmissions of the target uplink channel, the transmission module 601 is specifically used to: multiplex the first spatial relationship information in the spatial relationship information for transmission in J target transmissions of at least two target transmissions of the target uplink channel.

[0332] Optionally, the Jth target transmission can be any of the following:

[0333] At least two target transmissions in the target uplink channel, an odd number of target transmissions;

[0334] The target uplink channel has at least two target transmissions, the even number of which are target transmissions.

[0335] The first J target transmissions of at least two target transmissions in the target uplink channel;

[0336] The latter Jth target transmission in at least two target transmissions of the target uplink channel.

[0337] Optionally, if the number of spatial relationship information is greater than the number of transmissions of the target uplink channel, the transmission module 601 is specifically configured to: transmit at least two target transmissions of the target uplink channel using the second spatial relationship information in the spatial relationship information, wherein the number of the second spatial relationship information is equal to the number of transmissions of the target uplink channel.

[0338] Optional:

[0339] The second spatial relationship information is: the P spatial relationship information items that appear first in the spatial relationship information sequence; or,

[0340] The second spatial relationship information is: the P spatial relationship information that has the smallest spatial distance to the target spatial relationship information;

[0341] Wherein, the target spatial relationship information is the spatial relationship information used in the historical transmission of the uplink channel corresponding to at least two target transmissions of the target uplink channel; P is the number of transmissions of the target uplink channel.

[0342] Terminal 600 can implement the present invention Figure 4 The various processes in the method embodiments, and the methods for achieving the same beneficial effects, will not be described again here to avoid repetition.

[0343] See Figure 7 , Figure 7 This is a second structural diagram of the network-side device provided in an embodiment of the present invention, as shown below. Figure 7 As shown, the network-side device 700 includes: a processor 701, a memory 702, a user interface 703, a transceiver 704, and a bus interface.

[0344] In this embodiment of the invention, the network-side device 700 further includes a computer program stored in a memory 702 and executable on a processor 701. When executed by the processor 701, the computer program performs the following steps:

[0345] Send indication information to the terminal, the indication information being used to indicate the transmission parameters of the uplink channel, the transmission parameters corresponding to: N uplink channels, and / or, at least two target transmissions of the target uplink channel; N is an integer greater than 1.

[0346] Optional:

[0347] When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or,

[0348] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

[0349] Optionally, the TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; a PDCCH configuration signaling element; or a PDSCH configuration signaling element.

[0350] Optionally, when the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

[0351] Optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0352] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0353] Optionally, the first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of the PUSCH.

[0354] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0355] Optionally, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0356] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0357] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0358] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0359] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0360] Optionally, if the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI may further include a third signaling field, which indicates the number of transmissions of the target PUSCH.

[0361] Optional:

[0362] When the precoding information corresponds to at least two target transmissions of the codebook-based target PUSCH, the second signaling field is the precoding information and the layer number signaling field; or,

[0363] In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

[0364] Optionally, the uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information.

[0365] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0366] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0367] Optionally, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0368] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0369] Optionally, when Q is greater than N, the indication information further includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0370] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0371] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0372] exist Figure 7 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 701 and memory represented by memory 702 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 704 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 703 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0373] The processor 701 is responsible for managing the bus architecture and general processing, while the memory 702 can store the data used by the processor 2601 when performing operations.

[0374] The network-side device 700 can implement the various processes implemented by the network-side device in the above method embodiments, and will not be described again here to avoid repetition.

[0375] Please refer to Figure 8 , Figure 8 This is a second structural diagram of a terminal provided in an embodiment of the present invention. This terminal can be a hardware structure diagram of a terminal implementing various embodiments of the present invention. For example... Figure 8 As shown, the terminal 800 includes, but is not limited to, components such as: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will understand that... Figure 8 The terminal structure shown does not constitute a limitation on the terminal. A terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements. In embodiments of the present invention, the terminal includes, but is not limited to, mobile phones, tablet computers, laptop computers, PDAs, in-vehicle terminals, wearable devices, and pedometers.

[0376] The radio frequency unit 801 is used for:

[0377] Uplink transmission is performed based on the transmission parameters of the uplink channel, which correspond to: N uplink channels, and / or at least two target transmissions of the target uplink channel, where N is an integer greater than 1.

[0378] Optionally, the transmission parameters include: a predefined number of uplink channel layers, wherein the number of layers is 1.

[0379] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the transmission parameters include: a first association between the number of transmissions of the target uplink channel and precoding information; and / or, a second association between the number of transmissions of the target uplink channel and spatial relationship information.

[0380] Optionally, the radio frequency unit 801 is also used for:

[0381] Before transmitting data in the uplink channel according to the transmission parameters of the uplink channel, the system receives indication information sent by the network-side device, which is used to indicate the transmission parameters of the uplink channel.

[0382] Optional:

[0383] When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or,

[0384] When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

[0385] Optionally, the TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; a PDCCH configuration signaling element; or a PDSCH configuration signaling element.

[0386] Optionally, when the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

[0387] Optionally, the DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH.

[0388] The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

[0389] Optionally, the first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of the PUSCH.

[0390] Optionally, when the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

[0391] Optionally, the DCI includes a second signaling field, which is used to indicate the precoding information of the PUSCH.

[0392] Optionally, when the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field;

[0393] The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or,

[0394] The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

[0395] Optionally, when the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is a precoding information and a layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

[0396] Optionally, if the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI may further include a third signaling field, which indicates the number of transmissions of the target PUSCH.

[0397] Optional:

[0398] When the precoding information corresponds to at least two target transmissions of the codebook-based target PUSCH, the second signaling field is the precoding information and the layer number signaling field; or,

[0399] In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

[0400] Optionally, the uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control (PLC) information.

[0401] The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

[0402] Optionally, when the transmission parameters correspond to N PUCCHs, the indication information includes first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

[0403] Optionally, the first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information;

[0404] Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

[0405] Optionally, when Q is greater than N, the indication information further includes second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

[0406] Optionally, when the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel;

[0407] The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

[0408] Optionally, if the number of spatial relationship information is less than the number of transmissions of the target uplink channel, the radio frequency unit 801 is further configured to: transmit the first spatial relationship information in the spatial relationship information multiplexed in the J target transmissions of the target uplink channel.

[0409] Optionally, the Jth target transmission can be any of the following:

[0410] At least two target transmissions in the target uplink channel, an odd number of target transmissions;

[0411] The target uplink channel has at least two target transmissions, the even number of which are target transmissions.

[0412] The first J target transmissions of at least two target transmissions in the target uplink channel;

[0413] The latter Jth target transmission in at least two target transmissions of the target uplink channel.

[0414] Optionally, if the number of spatial relationship information is greater than the number of transmissions of the target uplink channel, the radio frequency unit 801 is further configured to: use the second spatial relationship information in the spatial relationship information for transmission in at least two target transmissions of the target uplink channel.

[0415] Optional:

[0416] The second spatial relationship information is: the P spatial relationship information items that appear first in the spatial relationship information sequence; or,

[0417] The second spatial relationship information is: the P spatial relationship information that has the smallest spatial distance to the target spatial relationship information;

[0418] Wherein, the target spatial relationship information is the spatial relationship information used in the historical transmission of the uplink channel corresponding to at least two target transmissions of the target uplink channel; P is the number of transmissions of the target uplink channel.

[0419] It should be noted that the terminal 800 described above in this embodiment can implement the various processes implemented by the terminal in the method embodiment of the present invention and achieve the same beneficial effects. To avoid repetition, it will not be described again here.

[0420] It should be understood that, in this embodiment of the invention, the radio frequency unit 801 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink data from the base station and processes it with the processor 810; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. Furthermore, the radio frequency unit 801 can also communicate with networks and other devices through a wireless communication system.

[0421] The terminal provides users with wireless broadband internet access through the network module 802, such as helping users send and receive emails, browse web pages, and access streaming media.

[0422] The audio output unit 803 can convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into audio signals and output them as sound. Furthermore, the audio output unit 803 can also provide audio output related to specific functions performed by the terminal 800 (e.g., call signal reception sound, message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, and a receiver, etc.

[0423] Input unit 804 is used to receive audio or video signals. Input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042. The GPU 8041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on display unit 806. The image frames processed by GPU 8041 can be stored in memory 809 (or other storage medium) or transmitted via radio frequency unit 801 or network module 802. Microphone 8042 can receive sound and process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via radio frequency unit 801 in telephone call mode.

[0424] The terminal 800 also includes at least one sensor 805, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 8061 according to the ambient light level, and the proximity sensor can turn off the display panel 8061 and / or backlight when the terminal 800 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity and can be used to identify the terminal's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. The sensor 805 may also include a fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., which will not be described in detail here.

[0425] The display unit 806 is used to display information input by the user or information provided to the user. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0426] User input unit 807 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the terminal. Specifically, user input unit 807 includes a touch panel 8071 and other input devices 8072. Touch panel 8071, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 8071). Touch panel 8071 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 810, which receives and executes commands from the processor 810. In addition, touch panel 8071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. Besides touch panel 8071, user input unit 807 may also include other input devices 8072. Specifically, other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, joysticks, etc., which will not be described in detail here.

[0427] Furthermore, the touch panel 8071 can cover the display panel 8061. When the touch panel 8071 detects a touch operation on or near it, it transmits the information to the processor 810 to determine the type of touch event. Subsequently, the processor 810 provides corresponding visual output on the display panel 8061 based on the type of touch event. Although in Figure 8 In this embodiment, the touch panel 8071 and the display panel 8061 are two independent components to realize the input and output functions of the terminal. However, in some embodiments, the touch panel 8071 and the display panel 8061 can be integrated to realize the input and output functions of the terminal. The specific implementation is not limited here.

[0428] Interface unit 808 serves as an interface for connecting external devices to terminal 800. For example, external devices may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 808 can be used to receive input from external devices (e.g., data, power, etc.) and transmit the received input to one or more elements within terminal 800, or it can be used to transmit data between terminal 800 and external devices.

[0429] The memory 809 can be used to store software programs and various data. The memory 809 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 809 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0430] The processor 810 is the control center of the terminal, connecting various parts of the terminal through various interfaces and lines. It executes software programs and / or modules stored in the memory 809, and calls data stored in the memory 809 to perform various functions and process data, thereby providing overall monitoring of the terminal. The processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 810.

[0431] The terminal 800 may also include a power supply 811 (such as a battery) that supplies power to various components. Preferably, the power supply 811 can be logically connected to the processor 810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system.

[0432] In addition, terminal 800 includes some functional modules not shown, which will not be described in detail here.

[0433] Preferably, the present invention also provides a terminal, including a processor 810, a memory 809, and a computer program stored in the memory 809 and executable on the processor 810. When the computer program is executed by the processor 810, it implements the various processes of the above-described uplink channel configuration method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0434] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes of the above-described uplink channel configuration method embodiment or the above-described uplink channel transmission method, achieving the same technical effect. To avoid repetition, it will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0435] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0436] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0437] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An indication method of an uplink channel, applied to a network side device, characterized in that, The method includes: Send indication information to the terminal, the indication information being used to indicate the transmission parameters of the uplink channel, the transmission parameters corresponding to: N uplink channels; or, The transmission parameters correspond to at least two target transmissions on N uplink channels and the target uplink channel; N is an integer greater than 1. The transmission parameters include at least one of the following: precoding information and transmission count information.

2. The method according to claim 1, characterized in that: When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or, When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

3. The method of claim 2, wherein, The TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; or a PDCCH configuration signaling element. PDSCH configures signaling elements.

4. The method of claim 1, wherein, When the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

5. The method of claim 4, wherein, The DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH. The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

6. The method of claim 5, wherein, The first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of PUSCH.

7. The method of claim 6, wherein, When the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

8. The method of claim 4, wherein, The DCI includes a second signaling field, which is used to indicate the pre-coding information of the PUSCH.

9. The method of claim 8, wherein, When the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field; The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or, The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

10. The method of claim 8, wherein, When the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is the precoding information and the layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

11. The method of claim 8, wherein, When the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI also includes a third signaling field, which is used to indicate the number of transmissions of the target PUSCH.

12. The method according to claim 8, characterized in that: In cases where the precoding information corresponds to at least two target transmissions of the target PUSCH based on the codebook, the second signaling field is the precoding information and the layer number signaling field; or, In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

13. The method of claim 1, wherein, The uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control information. The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

14. The method according to claim 13, characterized in that, When the transmission parameters correspond to N PUCCHs, the indication information includes a first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

15. The method according to claim 14, characterized in that, The first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information; Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

16. The method according to claim 14, characterized in that, When Q is greater than N, the indication information further includes a second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

17. The method according to claim 1, characterized in that, When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel; The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

18. A method for configuring an uplink channel, applied to a terminal, characterized in that, The method includes: Uplink transmission is performed based on the uplink channel transmission parameters, which correspond to N uplink channels. or, The transmission parameters correspond to at least two target transmissions of N uplink channels and the target uplink channel, where N is an integer greater than 1; The transmission parameters include at least one of the following: precoding information and transmission count information.

19. The method according to claim 18, characterized in that, The transmission parameters also include: a predefined number of uplink channel layers, wherein the number of layers is 1.

20. The method according to claim 18, characterized in that, When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the transmission parameters include: a first correlation between the number of transmissions of the target uplink channel and precoded information; and / or, a second correlation between the number of transmissions of the target uplink channel and spatial relationship information.

21. The method according to claim 18, characterized in that, Before transmitting the uplink channel based on the uplink channel transmission parameters, the method further includes: The device receives indication information sent by the network-side device, which is used to indicate the transmission parameters of the uplink channel.

22. The method according to claim 21, characterized in that: When the transmission parameters correspond to N uplink channels, the N uplink channels correspond to M transceiver points (TRPs), where M is an integer greater than 1; or, When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the target transmission is: repeated transmission, frequency hopping transmission, or multiple transmissions.

23. The method according to claim 22, characterized in that, The TRP is defined by at least one of the following: a control resource set or a group of control resource sets; an explicitly defined TRP; a transmission configuration indication state, a list of transmission configuration indication states, or a pool of transmission configuration indication states; QCL information or QCL group information; spatial relationship information or spatial relationship group information; a physical downlink control channel (PDCCH) scrambling identifier or a group of PDCCH scrambling identifiers; a physical downlink shared channel (PDSCH) scrambling identifier or a group of PDSCH scrambling identifiers; or a PDCCH configuration signaling element. PDSCH configures signaling elements.

24. The method according to claim 21, characterized in that, When the uplink channel is the Physical Uplink Shared Channel (PUSCH), the indication information is transmitted via Downlink Control Information (DCI).

25. The method according to claim 24, characterized in that, The DCI includes a first signaling field, which is used to indicate the uplink transmission scheme of the PUSCH. The uplink transmission scheme includes at least one of the following: uplink diversity transmission PUSCH, codebook-based PUSCH, and non-codebook PUSCH.

26. The method according to claim 25, characterized in that, The first signaling field is a precoding information and a layer number signaling field, wherein the precoding information and the layer number signaling field use a first code point to indicate the uplink transmission scheme of PUSCH.

27. The method according to claim 26, characterized in that, When the first code point is a reserved code point, a newly added code point, a code point where the transmission precoding matrix indicator TPMI has a special value, or a code point where the layer number has a special value, the uplink transmission scheme of the PUSCH indicated by the first code point is: uplink diversity transmission of PUSCH or non-codebook PUSCH.

28. The method according to claim 24, characterized in that, The DCI includes a second signaling field, which is used to indicate the pre-coding information of the PUSCH.

29. The method according to claim 28, characterized in that, When the precoding information corresponds to N codebook-based PUSCHs, the second signaling field is the precoding information and the layer number signaling field; The DCI uses one precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information; or, The DCI uses N precoding information and a layer number signaling field to indicate N codebook-based PUSCH precoding information.

30. The method according to claim 28, characterized in that, When the precoding information corresponds to the uplink diversity transmission PUSCH, the second signaling field is the precoding information and the layer number signaling field; the precoding information and the layer number signaling field use reserved code points to indicate the precoding information of the uplink diversity transmission PUSCH.

31. The method according to claim 28, characterized in that, When the precoded information corresponds to at least two target transmissions of the target PUSCH, the DCI also includes a third signaling field, which is used to indicate the number of transmissions of the target PUSCH.

32. The method according to claim 28, characterized in that: In cases where the precoding information corresponds to at least two target transmissions of the target PUSCH based on the codebook, the second signaling field is the precoding information and the layer number signaling field; or, In cases where the precoded information corresponds to at least two target transmissions of a non-codebook target PUSCH, the second signaling field is a Probe Reference Signal Resource Indication (SRI) signaling field.

33. The method according to claim 21, characterized in that, The uplink channel is the Physical Uplink Control Channel (PUCCH), and the indication information is transmitted through at least one of Radio Resource Control (RRC) layer information, Media Access Control (MAC) layer information, and Physical Layer Control information. The RRC layer information includes RRC signaling; the MAC layer information includes MAC control element (CE); and the physical layer control information includes DCI.

34. The method according to claim 33, characterized in that, When the transmission parameters correspond to N PUCCHs, the indication information includes a first sub-indication information, which is used to indicate Q spatial relationship information, where Q is an integer greater than or equal to N.

35. The method according to claim 34, characterized in that, The first sub-indication information includes G groups of spatial relationship information, and the spatial relationship information of the G groups of spatial relationship information constitutes the Q spatial relationship information; Where G equals 1; or, G equals N; or, the value of G equals the number of PUCCH groups.

36. The method according to claim 34, characterized in that, When Q is greater than N, the indication information further includes a second sub-indication information, which is used to indicate the spatial relationship information of each PUCCH among the N PUCCHs.

37. The method according to claim 21, characterized in that, When the transmission parameters correspond to at least two target transmissions of the target uplink channel, the indication information includes third sub-indication information, which is used to indicate the spatial relationship information of at least two target transmissions of the target uplink channel; The quantity of spatial relationship information is equal to or not equal to the number of transmissions of the target uplink channel.

38. The method according to claim 37, characterized in that, When the amount of spatial relationship information is less than the number of transmissions of the target uplink channel, the step of transmitting the uplink channel according to the transmission parameters of the uplink channel includes: The first spatial relationship information in the multiplexed spatial relationship information is used for transmission in at least two target transmissions of the target uplink channel.

39. The method according to claim 38, characterized in that, The Jth target transmission is any of the following types of transmission: At least two target transmissions in the target uplink channel, an odd number of target transmissions; The target uplink channel has at least two target transmissions, the even number of which are target transmissions. The first J target transmissions of at least two target transmissions in the target uplink channel; The latter Jth target transmission in at least two target transmissions of the target uplink channel.

40. The method according to claim 37, characterized in that, When the amount of spatial relationship information is greater than the number of transmissions of the target uplink channel, the step of transmitting the uplink channel according to the transmission parameters of the uplink channel includes: At least two target transmissions of the target uplink channel are transmitted using the second spatial relationship information in the spatial relationship information, and the number of the second spatial relationship information is equal to the number of transmissions of the target uplink channel.

41. The method according to claim 40, characterized in that: The second spatial relationship information is: the P spatial relationship information items that appear first in the spatial relationship information sequence; or, The second spatial relationship information is: the P spatial relationship information that has the smallest spatial distance to the target spatial relationship information; Wherein, the target spatial relationship information is the spatial relationship information used in the historical transmission of the uplink channel corresponding to at least two target transmissions of the target uplink channel; P is the number of transmissions of the target uplink channel.

42. A network-side device, characterized in that, The network-side device includes: The sending module is used to send indication information to the terminal. The indication information is used to indicate the transmission parameters of the uplink channel. The transmission parameters correspond to: N uplink channels, or the transmission parameters correspond to: at least two target transmissions of N uplink channels and the target uplink channel; N is an integer greater than 1. The transmission parameters include at least one of the following: precoding information and transmission count information.

43. A terminal, characterized in that, The terminal includes: The transmission module is used to transmit uplink channels according to the transmission parameters of the uplink channels, wherein the transmission parameters correspond to: N uplink channels, or the transmission parameters correspond to: at least two target transmissions of N uplink channels and a target uplink channel, where N is an integer greater than 1; The transmission parameters include at least one of the following: precoding information and transmission count information.

44. A network-side device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the uplink channel configuration method as described in any one of claims 1 to 17.

45. A terminal, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the uplink channel transmission method as described in any one of claims 18 to 41.

46. ​​A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the uplink channel configuration method as described in any one of claims 1 to 17; Alternatively, the steps of the uplink channel transmission method as described in any one of claims 18 to 41.

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