Uplink transmission transmission, scheduling method and device

Abstract

The embodiments of the present application provide a method and apparatus for sending and scheduling uplink transmissions. Specifically, the method for sending uplink transmissions includes: obtaining scheduling information for uplink transmissions; dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets; and sending the uplink transmissions carried by the N frequency domain resource sets based on M spatial domain resource information. Wherein, M and N are positive integers greater than 1. Through the present application, the uplink coverage area in power-limited scenarios can be expanded, interference between antenna ports can be avoided, and uplink transmission performance can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a method and apparatus for sending and scheduling uplink transmissions. Background Art

[0002] In traditional multi-antenna technology, due to device cost constraints, using only a portion of the antennas for transmission does not fully utilize the device's maximum transmit power capability. For example, a user device that supports up to two antennas can only utilize half of its maximum transmit power when using only one antenna to transmit. With technological advancements, the performance of wireless communication devices continues to improve while costs continue to decrease. Therefore, next-generation mobile communication systems are likely to be equipped with multiple high-performance antennas, providing opportunities for optimizing maximum power limits.

[0003] NR systems have two types of uplink MIMO transmission: codebook-based and non-codebook-based. For non-codebook-based transmission, relevant technologies already support maximum power utilization. For codebook-based transmission, there is no clear solution to support maximum power utilization. Summary of the Invention

[0004] The embodiments of the present application provide a method and apparatus for sending and scheduling uplink transmissions, so as to at least solve the problem in the related art that there is no clear solution to support maximum power utilization for codebook-based transmissions.

[0005] According to one embodiment of the present application, a method for sending an uplink transmission is provided, comprising: obtaining scheduling information for an uplink transmission, dividing frequency domain resources indicated by the scheduling information into N frequency domain resource sets; and sending the uplink transmission carried by the N frequency domain resource sets based on M spatial resource information, where M and N are positive integers greater than 1.

[0006] According to another embodiment of the embodiments of the present application, a scheduling method for uplink transmission is provided, including: a second communication node sends scheduling information of uplink transmission to a first communication node, wherein the scheduling information of uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, wherein N is a positive integer greater than 1; and the second communication node receives the uplink transmission sent by the first communication node.

[0007] According to another embodiment of the present application, an apparatus for transmitting uplink transmission is provided, comprising: an acquisition module configured to acquire scheduling information for uplink transmission; a division module configured to divide frequency domain resources indicated by the scheduling information into N frequency domain resource sets; and a transmission module configured to transmit the uplink transmission carried by the N frequency domain resource sets based on M spatial domain resource information. Wherein, M and N are positive integers greater than 1.

[0008] According to another embodiment of the embodiments of the present application, a scheduling device for uplink transmission is provided, which is located in a second communication node and includes: a sending module for sending scheduling information of uplink transmission to a first communication node, wherein the scheduling information of uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, wherein N is a positive integer greater than 1; and a receiving module for receiving the uplink transmission sent by the first communication node.

[0009] According to another embodiment of the present application, a storage medium is further provided, in which a computer program is stored. The computer program is configured to execute the steps of any of the above method embodiments when running.

[0010] According to another embodiment of the present application, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0011] Through the embodiments of the present application, since the frequency domain resources for uplink transmission are divided in the form of resource sets using scheduling information between the first communication node and the second communication node, and the uplink transmission carried by the frequency domain resource set is sent based on the spatial resource information, the problem that there is no clear solution to support the maximum power utilization of codebook-based transmission can be solved, thereby expanding the uplink coverage area in power-limited scenarios, avoiding interference between antenna ports, and improving uplink transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the embodiments of the present application and constitute a part of this application. The illustrative embodiments of the embodiments of the present application and their descriptions are used to explain the embodiments of the present application and do not constitute an improper limitation on the embodiments of the present application. In the drawings:

[0013] Figure 1 is a flowchart of a method for sending uplink transmission according to an embodiment of the present application;

[0014] Figure 2 is a schematic diagram of scheduling resource transmission according to an embodiment of the present application;

[0015] Figure 3 is a schematic diagram of another scheduling resource transmission according to an embodiment of the present application;

[0016] Figure 4 is a schematic diagram of frequency domain resource set transmission according to an embodiment of the present application;

[0017] Figure 5 is a flowchart of a scheduling method for uplink transmission according to an embodiment of the present application;

[0018] Figure 6 This is a structural block diagram of a sending device for uplink transmission according to an embodiment of the present application;

[0019] Figure 7 This is a structural block diagram of an uplink transmission scheduling device according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict.

[0021] It should be noted that the terms "first", "second", etc. in the description and claims of the embodiments of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0022] Example 1

[0023] In this embodiment, a method for sending uplink transmission is provided. Figure 1 This is a flow chart of sending an uplink transmission according to an embodiment of the present application, such as Figure 1 As shown, the process includes the following steps:

[0024] Step S102, obtaining scheduling information for uplink transmission;

[0025] Step S104: dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets;

[0026] Step S106: Send the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information, where M and N are positive integers greater than 1.

[0027] It should be noted that the relationship between M and N in this embodiment and the following embodiments is that M is greater than or equal to N.

[0028] The spatial resource information includes at least one of the following: antenna port information, antenna panel information, transmission chain information, beam information, precoding codeword information, spatial relationship information, and reference signal information.

[0029] Specifically, the airspace resources corresponding to the airspace resource information include: antenna ports, antenna panels, transmission chains, and beams.

[0030] Specifically, the antenna port information includes at least one of the following: antenna port, antenna port index, antenna port group, and antenna port group index.

[0031] Specifically, the antenna panel information includes at least one of the following: antenna panel, antenna panel index, antenna panel group, antenna panel group index.

[0032] Specifically, the transmission chain information includes at least one of the following: a transmission chain and a transmission chain group.

[0033] Specifically, the beam information includes at least one of the following: beam, beam grouping.

[0034] Specifically, a beam can refer to a resource, such as a transmitting end precoder, a receiving end precoder, an antenna port, an antenna weight vector, an antenna weight matrix, etc. Therefore, a beam can be indicated by a resource index.

[0035] Specifically, the precoding codeword information includes at least one of the following: a precoding codeword, a precoding codeword index, a precoding codeword group, and a precoding codeword group index.

[0036] Specifically, a precoding codeword is also called a precoding matrix, which refers to a precoding codeword in a predefined set of precoding codewords called a precoding codebook. A precoding codeword index is also called a TPMI (Transmitted Precoding Matrix Indicator).

[0037] Specifically, the spatial relationship includes at least one reference signal information. The reference signal information includes at least one of the following: a reference signal, a reference signal resource, a reference signal resource set, or a reference signal resource group. Alternatively, the reference signal information includes at least one of the following: a reference signal index, a reference signal resource index, a reference signal resource set index, or a reference signal resource group index.

[0038] The above-mentioned index is also called number, indication or mark (identification, indicator or indication).

[0039] The reference signal may be an uplink reference signal or a downlink reference signal. The uplink reference signal includes one of the following: Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), Phase Noise Tracking Reference Signal (PTRS), Tracking Reference Signal (TRS). The downlink reference signal includes one of the following: Channel State Information Reference Signal (CSI-RS), Secondary Synchronization Block (SSB), DMRS, PTRS, TRS.

[0040] Sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information includes:

[0041] (1) sending the uplink transmission carried by the frequency domain resource set according to the antenna port indicated by the antenna port information;

[0042] (2) sending the uplink transmission carried by the frequency domain resource set according to the antenna panel indicated by the antenna panel information;

[0043] (3) sending the uplink transmission carried by the frequency domain resource set according to the transmission chain indicated by the transmission chain information;

[0044] (4) sending the uplink transmission carried by the frequency domain resource set according to the beam indicated by the beam information;

[0045] For example, uplink transmissions carried by frequency domain resource set 0 are sent using antenna port 0. Uplink transmissions carried by frequency domain resource set 0 are sent using antenna panel 0. Uplink transmissions carried by frequency domain resource set 0 are sent using beam 0. Uplink transmissions carried by frequency domain resource set 0 are sent using transmission chain 0.

[0046] (5) sending the uplink transmission carried by the frequency domain resource set on a non-zero power antenna port in the precoding codeword indicated by the precoding codeword information;

[0047] Specifically, a precoding codeword is a matrix whose rows correspond to antenna ports and whose columns correspond to layers. If all matrix elements in a row of a precoding codeword are 0, the antenna port corresponding to that row of the precoding codeword is a zero-power antenna port. If all matrix elements in a row of a precoding codeword are not 0, the antenna port corresponding to that row of the precoding codeword is a non-zero-power antenna port.

[0048] For example, for the precoding matrix Indicates a 4-antenna-port, 2-layer structure. Antenna ports 0 and 1 are zero-power antenna ports, and antenna ports 2 and 3 are non-zero-power antenna ports.

[0049] (6) sending the uplink transmission carried by the frequency domain resource set according to the same transmission parameters as the spatial relationship information;

[0050] (7) Sending the uplink transmission carried by the frequency domain resource set according to the same transmission parameters as the reference signal information.

[0051] For example, during beam management, the base station schedules the UE to send different SRSs using different transmission parameters, such as different beams or transmit filters with different parameters. Assume that a total of three SRSs are sent, identified by SRI 0, SRI 1, and SRI 2. When the base station schedules SRI 0 and SRI 1 to send uplink transmissions, the UE divides the resources indicated by the scheduling information into N = 2 frequency domain resource sets, sends the first frequency domain resource set using the transmission parameters or transmit filters for SRI 0, and sends the second frequency domain resource set using the transmission parameters or transmit filters for SRI 1.

[0052] Specifically, the number M of spatial resource information is determined according to the SRS resources corresponding to the SRI domain included in the scheduling information of the uplink transmission or the number of antenna ports included in the SRS resource set.

[0053] For example, if the SRS resource corresponding to the SRI field included in the scheduling information for uplink transmission PUSCH indicates that the number of SRS ports is 4, then the number of spatial resource information M = 4. When the spatial resource information indicates antenna ports, the number of PUSCH antenna ports is 4.

[0054] Specifically, the number M of spatial resource information is determined according to the SRS resources corresponding to the SRI domain included in the uplink transmission scheduling information or the number of antenna ports included in the SRS resource set, and the precoding information in the uplink transmission scheduling information.

[0055] The number M of spatial resource information is determined based on at least one of the following contents in the scheduling information of the uplink transmission: the number of antenna ports included in the measurement reference signal SRS resources corresponding to the SRI domain; the number of antenna ports included in the measurement reference signal SRS resource set corresponding to the SRI domain; precoding information; and the coherence capability of the antenna port.

[0056] The precoding information in the scheduling information of the uplink transmission includes one of the following indicators: TPMI, number of layers.

[0057] Specifically, the precoding matrix for uplink transmission is determined based on the SRS resource corresponding to the SRI domain included in the uplink transmission scheduling information or the number of antenna ports included in the SRS resource set and the precoding information in the uplink transmission scheduling information. The number M of spatial resource information is determined based on the uplink transmission precoding matrix, where M is equal to the number of rows with non-zero power in the matrix.

[0058] If all matrix elements in a row of a precoded codeword are 0, the antenna port corresponding to this row of the precoded codeword is a zero-power row. If all matrix elements in a row of a precoded codeword are not 0, the antenna port corresponding to this row of the precoded codeword is a non-zero-power row.

[0059] Specifically, in wireless communication systems, signals attenuate as distance increases during propagation. The maximum transmit power of a user device determines its communication range. The higher the maximum transmit power, the farther the signal can propagate. Therefore, the communication system specifies the maximum transmit power of the user device. For example, in the Long Term Evolution (LTE) system of the 3rd Generation Partnership Project (3GPP), UEs generally need to support power class 3, or 23dBm. In addition, some UEs also support power class 2, or 26dBm.

[0060] A UE can be configured with one or more antenna ports. Each antenna port corresponds to one or more antenna chains or RF chains, and each antenna port or antenna chain corresponds to a power amplifier (PA). For simplicity, it is assumed that each antenna port corresponds to one PA. If an antenna port corresponds to multiple PAs, the combined power of the multiple PAs is the power capability of the antenna port.

[0061] For UEs supporting multiple antenna ports, to meet a specific power level, each antenna port or some of the antenna ports may be able to achieve the required power level. Alternatively, all antenna ports may not be able to achieve the required power level, but some or all antenna ports combined may be able to achieve the required power level. For example, for a UE supporting two antenna ports, when supporting power level 3, the maximum transmit power must be 23dBm. The power supported by the two antenna ports may be one of the following: 23dBm + 23dBm; 23dBm + 20dBm; or 20dBm + 20dBm.

[0062] When all antenna ports cannot independently reach maximum transmit power, multiple antenna ports must be combined to achieve maximum transmit power. For example, two 20dBm antenna ports transmitting simultaneously can achieve a transmit power of 23dBm. When only Multiple-Input Multiple-Output (MIMO) layer 1 data is transmitted, if there is coherence between the two antenna ports, the base station can schedule the UE to transmit using both antenna ports and use different codewords to best match the actual channel. Coherence between antennas means that the phase difference between the antennas is controllable. If there is no coherence between the two antenna ports, the base station generally cannot schedule the UE to transmit using both antenna ports because the phase difference between the two antenna ports is uncontrollable, and thus the interference between the ports is uncontrollable. If the same data is transmitted using two antenna ports, the signals between the antenna ports may be positively superimposed to double the power, or negatively superimposed and reduced to zero power.

[0063] When using MIMO multi-antenna mode to transmit the Physical Uplink Shared Channel (PUSCH), there are two types of transmission: codebook-based transmission and non-codebook-based transmission.

[0064] Codebook-based transmission means that the base station selects a codeword from a predefined codebook as the precoding for uplink transmission. A codebook is a predefined set of codewords, including at least one codeword. Each codeword is a matrix used for precoding multiple antenna ports on the transmitting end. Each row of the codeword matrix represents an antenna port; each column represents a layer (MIMO layer). For example, Table 1 shows a codebook for two antenna ports and one layer. The codebook includes six codewords, each codeword is two rows and one column. Codewords are identified by TPMI (Transmitted Precoding Matrix Indicator).

[0065] Typically, the base station determines the number of antenna ports based on the UE's transmit antenna capabilities and schedules the UE to transmit SRSs for uplink channel measurement, also known as channel sounding. Based on the channel measurement results, the base station determines MIMO parameters for subsequent uplink transmissions, including the number of layers and precoding. It then assigns a specific precoding matrix (TPMI) to the UE's uplink transmission. The UE precodes the data using the specified precoding matrix and sends it to the base station.

[0066] The base station may configure different SRS resources for the UE. The UE transmits different SRSs on different SRS resources. Therefore, the base station also needs to indicate the SRS resources (SRI) for uplink transmission. For example, different SRS resources correspond to different transmit beam resources (groups), different antenna panels (groups), or different precoding methods for different antenna ports.

[0067] For non-codebook based transmission, the base station does not need to indicate the TPMI to the UE, but if the UE uses multiple antenna ports, the UE can determine the precoding information for the transmission by itself.

[0068] Table 1

[0069]

[0070] When a UE is configured with multiple antenna ports, the ability to adjust the phase difference of the transmitted signal between antenna ports is classified into different coherent capabilities: full coherent, partial coherent, and non-coherent. UEs with higher coherent capabilities are supported downward. Full coherence is higher than partial coherence, which is higher than non-coherence.

[0071] Non-coherent capability means that the phase difference between antenna ports cannot be accurately adjusted; partial coherent capability means that the phase difference can be accurately adjusted only between some antenna ports; full coherent capability means that the phase difference can be accurately adjusted between all antenna ports.

[0072] A UE with non-coherent capabilities can only support codewords designed for UE with non-coherent capabilities; a UE with partial coherence capabilities can support codewords designed for UE with non-coherent capabilities and codewords designed for UE with partial coherence capabilities; a UE with full coherence capabilities can support codewords designed for UE with non-coherent capabilities, codewords designed for UE with partial coherence capabilities and codewords designed for UE with full coherence capabilities.

[0073] For example, a fully coherent UE can also support partially coherent and incoherent transmissions. Partially coherent UEs also support incoherent transmissions. As shown in Table 1, in the 2-antenna-port, 1-layer codebook, the matrices of TPMI 0 and 1 each have one antenna port set to 0, meaning that only one antenna port is used for transmission. This is also called antenna port selection, or simply antenna port selection. TPMI 0 and TPMI 1 are designed for incoherent UEs. TPMI 2 to TPMI 5 use both antenna ports, with different phases between the antenna ports. TPMI 2 to 5 were originally designed for fully coherent UEs. Two antenna ports are divided into fully coherent and incoherent.

[0074] Table 2 shows the codebook for 4 antenna ports with 1 layer. In addition to full coherence and incoherence, 4 antenna ports also have partial coherence. Codewords with only one non-zero element among the 4 elements are used for incoherent transmission, codewords with two non-zero elements are used for partially coherent transmission, and codewords with four non-zero elements are used for fully coherent transmission. The codewords shown in Table 2 are for 4 antenna ports, which are denoted as antenna ports 0 to 3. The codewords used for partially coherent transmission in Table 2 assume that antenna ports 0 and 2 are in one group, and 1 and 3 are in another group. The antenna ports within a group have coherence capability, that is, the phase difference can be controlled, while the antenna ports between groups do not have coherence capability.

[0075] Table 2

[0076]

[0077]

[0078] When a device uses only some antennas for transmission, the maximum power limit is the same as when all antennas are transmitting. This is called full power (or full rate) transmission.

[0079] For non-codebook-based transmission, related technologies already support full-power transmission, i.e., full-power transmission. For codebook-based transmission, related technologies only support full-power transmission for UEs with full coherence capabilities, and cannot support full-power transmission for UEs with partial coherence or non-coherence capabilities.

[0080] The lack of support for full-power transmission for partially coherent and non-coherent UEs is manifested in two aspects:

[0081] UEs are not allowed to use codewords that exceed their coherence capabilities. For example, UEs that only support non-coherent capabilities cannot use codewords with partial coherent or full coherent capabilities. UEs that support both partial coherent and non-coherent capabilities cannot use codewords with full coherent capabilities. For example, in Table 2, UEs with non-coherent capabilities can only use TPMIs 0 to 3, UEs with partial coherent capabilities (which are backward compatible with supporting non-coherent capabilities) can use TPMIs 0 to 11, and UEs with full coherence capabilities (which are backward compatible with supporting partial and non-coherent capabilities) can use all codewords.

[0082] The maximum transmit power of each antenna port is limited to 1 / 4 of the maximum number of antenna ports. For example, when a maximum of 4 antenna ports are supported, the maximum power of each antenna port is limited to 1 / 4 of the maximum transmit power of the UE.

[0083] That is, when the maximum number of supported antenna ports is 4, a non-coherent UE can only select one antenna port for transmission through antenna selection, and the maximum transmit power of this antenna port is 1 / 4 of the maximum power allowed by the UE. The actual transmit power of a port is 1 / 4 of the allowed power for the UE's uplink transmission.

[0084] It's generally believed that using fully coherent codewords for non-coherent UEs will result in uncontrollable interference between antenna ports because the phases between antenna ports can't be adjusted as required. This means the phase differences between antenna ports are random. However, using only antenna selection directly results in a loss of three-quarters of the transmit power, significantly impacting performance.

[0085] Therefore, intelligent systems should not impose such power restrictions. Non-coherent UEs should be allowed to use codewords with partial or full coherent capabilities, and partially coherent UEs should be allowed to use codewords with full coherent capabilities. An evaluation method may be used: when the performance loss caused by random interference between antenna ports is greater than the performance loss caused by the power reduction due to the reduction in the number of antenna ports, antenna port reduction (i.e., antenna port selection or antenna port group selection) is adopted; otherwise, non-antenna port (group) selection is adopted.

[0086] This evaluation method includes selecting antenna port (group) selection or non-antenna port (group) selection based on the performance of the receiving end. For example, the receiving performance of the antenna port (group) selection method is compared with that of the non-antenna port (group) selection method, and the method with better performance is selected.

[0087] Non-antenna port (group) selection, which allows the UE to use codewords exceeding its own coherence capability, includes the following two methods:

[0088] Mode 1: Multiple antenna ports transmit, and random interference occurs between the antenna ports.

[0089] Mode 2: Multiple antenna ports transmit, and different antenna ports carry uplink transmission on different frequency domain resources.

[0090] For ease of description, traditional codewords are divided into three categories: antenna port selection, antenna port group selection, and full antenna port.

[0091] Taking into account the partial coherence capability of the 4-antenna port, a more general description is:

[0092] Traditional method: For UEs with non-coherent capabilities, only antenna port selection codewords can be used; for UEs with partial coherence capabilities, antenna port selection and antenna port group selection codewords can be used; for UEs with full coherence capabilities, the above three types of codewords can be used.

[0093] Figure 2 FIG is a schematic diagram of a scheduling resource transmission according to an embodiment of the present application. Figure 2 As shown, the UE supports 2 antenna ports. When the UE only supports non-coherent capabilities, the UE can only select antenna port selection methods with TPMI of 0 and 1 in the traditional way. When TPMI is selected as 0, it can only use antenna port 0 to send, corresponding to Figure 2 Port #0 in the TPMI; when TPMI is selected as 1, it can only be sent using antenna port 1, corresponding Figure 2 The port in port#1.

[0094] However, this traditional method obviously cannot fully utilize the UE's transmit power. Figure 2 In the case of , 1 / 2 of the transmission power is directly lost.

[0095] Similarly, when the coherence capability type is partial coherence capability, similar problems also exist.

[0096] When the coherence capability type is non-coherence capability or partial coherence capability, the UE selects an antenna port for transmitting the N frequency domain resource sets from the antenna port according to the identification information of the codeword in the first extended codeword set; wherein the first extended codeword set includes codewords higher than the coherence capability of the UE.

[0097] Specifically, there is a random phase difference between the antenna ports corresponding to the codewords of the first extended codeword set.

[0098] Figure 3 FIG. 1 is a schematic diagram of another method for scheduling resource transmission according to an embodiment of the present application. Figure 3 As shown in Table 1, the UE supports 2 antenna ports. When the UE only supports non-coherent capabilities, the UE can only select antenna port selection methods with TPMI of 0 and 1 in the traditional method, as shown in Table 1. Using the above extension method 1, the UE also supports one or more code words with TPMI = {2, 3, 4, 5}. When TPMI = {2}, that is, the code word is Then the UE sends 1 layer of data on antenna ports 0 and 1 on the RB resources scheduled by the base station in the same manner, that is, no additional phase difference is added between antenna ports 0 and 1.

[0099] Since the antenna ports are non-coherent, the phase between the antenna ports cannot be controlled, and the actual codeword is equivalent to Where α is an arbitrary phase value, or a random phase value.

[0100] Specifically, the indication information of the pre-coded codeword corresponding to the coherence capability of the spatial resource higher than the spatial resource information is realized in the following manner: Figure 2 and Figure 3In order to reduce the transmission power loss in the transmission, the antenna ports or antenna port groups corresponding to the codewords of the first extended codeword set need to be transmitted on different frequency domain resources respectively, that is, the antenna ports used to transmit the N frequency domain resource sets are selected. That is, the two antenna ports only transmit on one frequency domain resource set respectively, instead of both antenna ports transmitting the same frequency domain resources. Therefore, the UE first divides the scheduling resources into N frequency domain resource sets according to the scheduling indication information sent by the base station and / or the allocation method predetermined with the base station. However, the transmission of resources is then realized on the N frequency domain resource sets according to the antenna ports or antenna port groups corresponding to the codewords of the first extended codeword set.

[0101] For example, the UE supports 2 antenna ports with non-coherent capability. In addition to the traditional antenna port selection method with TPMI of 0 and 1, as shown in Table 1, using the above-mentioned extension method 1, the UE also supports one or more codewords with TPMI = {2, 3, 4, 5}.

[0102] When TPMI={2}, the codeword is according to Figure 2 In the described approach, since the antenna ports are incoherent, their phases cannot be controlled, resulting in unpredictable interference between them. Therefore, the resources scheduled by the base station are divided into two frequency resource sets in the frequency domain, and each antenna port transmits on only one frequency resource set. This prevents mutual interference between multiple ports.

[0103] Figure 4 FIG is a schematic diagram of a frequency domain resource set transmission based on an embodiment of the present application. Figure 4 As shown, in the power-limited scenario, Figure 4 The advantages of using different antenna ports to transmit in a frequency division manner are as follows: Figure 2 The antenna port selection method and Figure 3 In the forced transmission mode for multiple antenna ports, each antenna port only needs to transmit half the frequency resources. When power is limited, that is, when the antenna port transmits at maximum transmit power, higher power can be transmitted on each RE, thereby improving coverage.

[0104] compared to Figure 3 ,The forced transmission method of multiple antenna ports will lead to unpredictable interference between the antenna ports. Figure 4 In this way, the antenna ports are frequency-division multiplexed, so there is no interference problem, and the transmission can be sent with better performance using the same power.

[0105] For UEs supporting 4-port partial coherence, the 4 antenna ports are divided into two groups, each containing 2 antenna ports. The antenna ports within a group are coherent and can transmit simultaneously. For example, group 0 includes antenna ports 0 and 2, and group 1 includes antenna ports 1 and 3.

[0106] For example, when the base station schedules 4 RBs to send uplink transmission in 1 layer for a UE that supports partial coherence of 4 antenna ports and indicates TPMI={12} that exceeds the coherence capability of the UE, see Table 2, that is, the codeword is The UE divides the scheduled resources (4 RBs) into two parts and sends them on antenna ports 0 and 2 of group 0 and antenna ports 1 and 3 of group 1 respectively.

[0107] Therefore, determining the number of frequency domain resource groups is also related to the coherence capability.

[0108] It should be noted that: within the scheduled frequency domain resources, a part of the antenna ports sends a part of the frequency domain resources, which means that the corresponding part of the frequency domain resources is used to place the data to be sent, while the remaining part of the frequency domain resources is not used to place the data to be sent. Figure 4 In the example, antenna port #0 transmits RB#0 and RB#1, meaning that data to be transmitted is placed at RB#0 and RB#1, while RB#2 and RB#3 are not. Similarly, antenna port #1 transmits RB#2 and RB#3, meaning that data to be transmitted is placed at RB#2 and RB#3, while RB#0 and RB#1 are not.

[0109] Specifically, the indication information for indicating multiple precoding codewords that meet the coherence capability is implemented as follows:

[0110] In Table 1, TPMIs 6 and 7 are not used and can be used to indicate multiple precoding codewords that meet the coherence capability. For example, TPMI={6} represents a combination of TPMIs 0 and 1, where the codeword with TPMI 0 is used for antenna port 0 and the codeword with TPMI 1 is used for antenna port 1.

[0111] In Table 2, TPMIs 28, 29, 30, and 31 are not used and are used to indicate multiple precoding codewords that meet the coherence capability. For example, TPMI = {28} indicates a combination of TPMIs 0, 1, 2, and 3. A codeword with a TPMI of 0 is used for antenna port 0, a codeword with a TPMI of 1 is used for antenna port 1, a codeword with a TPMI of 2 is used for antenna port 2, and a codeword with a TPMI of 3 is used for antenna port 3.

[0112] Similarly, assuming that there are 8 RB resources in the scheduling resources, namely #0 to #7, then when performing frequency domain resource transmission, the UE first determines the 4 antenna ports that support non-coherent capabilities based on its own capabilities, and then divides these 8 RB scheduling resources into 4 frequency domain resource sets, for example, the frequency domain set with #0 and #4, the frequency domain set with #1 and #5, the frequency domain set with #2 and #6, and the frequency domain set with #3 and #7. Then, by using TPMI={28}, the corresponding port allocation is performed according to the order of the frequency domain sets or the preset rules. For example, for the frequency domain set with #0 and #4, the UE uses the codeword with TPMI of 0. The determined antenna port 0 is used for transmission. For the frequency domain sets #1 and #5, the UE uses the codeword with TPMI of 1. The determined antenna port is 1 for transmission. For the frequency domain set with #2 and #6, the UE uses the codeword with TPMI of 2. The determined antenna port 2 is used for transmission. For the frequency domain set with #3 and #7, the UE uses the codeword with TPMI of 3. The determined antenna port 3 is used for transmission.

[0113] Specifically, the preset rules described above can be determined by the UE according to the user's instructions, or can be determined according to the transmission capability of the antenna port combined with factors such as the resource size of the frequency domain set. For example, if the scheduling resources have 4 RB resources in the case of uneven division, they can be divided into a resource set of {#0} and a resource set of {#1, #2, #3}. If the transmission performance of antenna port 0 is better than the transmission performance of antenna port 1, then when the UE allocates antenna ports, the UE uses a codeword with a TPMI of 0. The determined antenna port 0 is used for transmission with resource sets #1, #2, and #3. For resource set #3, the UE uses a codeword with a TPMI of 1. The determined antenna port 1 is used for transmission.

[0114] For UEs supporting 4-port partial coherence, the 4 antenna ports are divided into two groups, each containing 2 antenna ports. The antenna ports within a group are coherent and can transmit simultaneously. For example, group 0 includes antenna ports 0 and 2, and group 1 includes antenna ports 1 and 3.

[0115] For example, the base station schedules 4 RBs for uplink transmission in layer 1 for a UE that supports 4 antenna ports with partial coherence, and indicates a composite codeword. When TPMI={29}, it represents a combination of TPMIs 4 and 8 in Table 2. The UE divides the scheduled 4 RBs into 2 parts, which are sent on antenna ports 0 and 2 of group 0 and antenna ports 1 and 3 of group 1, respectively. That is, group 0 corresponds to a codeword with a TPMI of 4. Group 1 corresponds to the codeword with TPMI of 8

[0116] The base station schedules or activates uplink transmission for the UE, and indicates at least one of the following: time-frequency domain resource information and precoding information of the uplink transmission.

[0117] The information for scheduling uplink transmission may be carried in one physical layer downlink control information (Downlink Control Information, DCI) or in multiple DCIs.

[0118] When one DCI bearer is used, the DCI corresponds to all frequency domain resource sets, including time-frequency domain resource information and precoding information of all frequency domain resource sets.

[0119] When multiple DCI bearers are used, each DCI corresponds to a frequency domain resource set, including time-frequency domain resource information and precoding information of the frequency domain resource set.

[0120] The UE determines the number of frequency domain resource sets and the antenna port corresponding to each frequency domain resource set at least according to the DCI information.

[0121] Sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information also includes: carrying the uplink transmission on each of the N frequency domain resource sets.

[0122] The frequency domain resource includes one of the following: a resource block RB, a resource element RE.

[0123] It should be noted that uplink transmission includes one of the following: PUSCH transmission, Physical Uplink Control Channel (PUCCH) transmission, and SRS transmission. Resource sets include one of the following: different sets of RBs (Resource Blocks) and different sets of REs (Resource Elements). RBs and REs are defined as in LTE and New Radio (NR) technologies; each RB includes 12 REs in the frequency domain.

[0124] Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets includes: dividing the resources indicated by the scheduling information into N frequency domain resource sets on an even basis. For example, if the scheduled resources are 10 RBs and N=2, the N RB sets are 5 RBs of the same size.

[0125] The number of resources indicated by the scheduling information is N times the product of non-negative integer powers of 2, 3, and 5.

[0126] Specifically, for example, when N=2, the number of scheduled resource RBs is limited to 2 times any non-negative integer power of 2, 3, or 5. N is a positive integer not less than 2.

[0127] The product of 2 to the power of 1, 3 to the power of 0, 5 to the power of 0 and N=2 is 4;

[0128] The product of 2 to the power of 0, 3 to the power of 1, 5 to the power of 0 and N=2 is 6;

[0129] The product of 2 to the power of 0, 3 to the power of 0, 5 to the power of 1 and N=2 is 10;

[0130] The product of 2 to the power of 2, 3 to the power of 1, 5 to the power of 0 and N=2 is 24.

[0131] If N=3, the number of RBs may include: 6, 9, 15, 12, 27, 75, etc. If N=4, 5, etc., the same can be applied and will not be further explained here.

[0132] Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets includes: allocating a required number of the frequency domain resources to each of the frequency domain resource sets in sequence according to the resource order of the frequency domain resources indicated by the scheduling information.

[0133] When the resource set is an RB set, for example, the RB of the scheduled resource includes 4 RBs, which are numbered RB#3, RB#4, RB#5, and RB#6 in sequence, N is 2, and is evenly distributed into two RB sets. Then, the two RB sets each include 2 RBs, the first RB set includes RB#3 and RB#4, and the second RB set includes RB#5 and RB#6.

[0134] For example, the RBs of the scheduled resources include 4 RBs. These 4 RBs are not consecutive RBs and are numbered RB#3, RB#4, RB#7, and RB#8. N is 2 and is evenly distributed into two RB sets. Then, the two RB sets each include 2 RBs. The first RB set includes RB#3 and RB#4, and the second RB set includes RB#7 and RB#8.

[0135] When the resource set is an RE set, for example, when the scheduled resources are divided into N = 2 different RE sets, the REs in each RB are divided into two RE sets. An RB includes 12 REs, with the 6 REs with smaller RE numbers belonging to the first RE set and the 6 REs with larger RE numbers belonging to the second RE set. Some of these REs may be used to transmit DMRS.

[0136] The frequency domain resources indicated by the scheduling information are divided into N frequency domain resource sets, including: allocating frequency domain resources to each resource set in turn according to the resource order of the frequency domain resources indicated by the scheduling information until all allocation is completed.

[0137] For example, the RBs of the scheduled resources include 4 RBs, numbered RB#3, RB#4, RB#5, and RB#6 in sequence, N is 2, and are evenly distributed into two RB sets. Then, the two RB sets each include 2 RBs, the first RB set includes RB#3 and RB#5, and the second RB set includes RB#4 and RB#6.

[0138] For another example, when the scheduled resources are divided into N = 2 different RE sets, the REs in each RB are divided into two RE sets. An RB contains 12 REs, with the 6 even-numbered REs belonging to the first RE set and the 6 odd-numbered REs belonging to the second RE set. Some of these REs may be used to transmit DMRS.

[0139] The frequency domain resources indicated by the scheduling information are divided into N frequency domain resource sets, including: allocating the frequency domain resources to each of the frequency domain resource sets according to the maximum power of the spatial domain resource information corresponding to the frequency domain resource sets.

[0140] Specifically, the number of RBs included in the N non-uniform RB sets is related to the maximum power supported by the antenna port or antenna port combination corresponding to the RB set. That is, the higher the maximum power supported by the antenna port or antenna port combination, the greater the number of RBs included in the RB set corresponding to the antenna port or antenna port combination. Therefore, the number of RBs included in the RB set corresponding to the antenna port or antenna port combination is proportional to the linear value of the maximum power supported by the antenna port or antenna port combination.

[0141] For example, if a UE supports two transmit antenna ports, the maximum transmit power of antenna port 0 is 23 dBm, and the maximum transmit power of antenna port 1 is 20 dBm, then the linear ratio of the maximum transmit power of antenna port 0 to antenna port 1 is 2:1. The number of RBs in the scheduled resources is allocated to the two antenna ports in a ratio of 2:1. When the number of RBs in the scheduled resources is 15, the number of RBs transmitted by antenna port 0 and antenna port 1 is 10 and 5, respectively.

[0142] Therefore, the base station needs to ensure that after the number of RBs of the resources allocated to the UE is divided into N RB sets in proportion to the linear value of the maximum power supported by the N antenna ports or antenna port combinations, the number of RBs contained in each RB set is an integer.

[0143] Sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information also includes: allocating the total transmit power of the uplink transmission on the M spatial domain resource information; the transmit power allocated by each of the spatial domain resource information is evenly distributed on the RE of the corresponding frequency domain resource set.

[0144] For example, the base station schedules the UE to transmit PUSCH using antenna ports 2, and the scheduling information indicates frequency domain resources as RB0 and RB1. The UE divides the frequency domain resources into two groups: frequency domain resource set 0 includes RB0, and frequency domain resource set 1 includes RB1. It then transmits the PUSCH carried on RB0 and RB1 using antenna port 0 and antenna port 1, respectively.

[0145] The UE determines the total transmit power P for the PUSCH based on the power control parameters configured by the base station and the DCI information. The total transmit power refers to the sum of the transmit powers of all antenna ports. The UE distributes the total transmit power across the two antenna ports, for example, each antenna port transmits with a power of P / 2.

[0146] For antenna port 0, the power of P / 2 is evenly distributed across all REs in RB0. For antenna port 1, the power of P / 2 is evenly distributed across all REs in RB1.

[0147] Allocating the total transmit power of the uplink transmission to the M pieces of spatial resource information includes: evenly allocating the total transmit power of the uplink transmission to the M pieces of spatial resource information; or allocating the total transmit power of the uplink transmission to the M pieces of spatial resource information in proportion to the number of frequency domain resources corresponding to the M pieces of spatial resource information. For example: the frequency domain resource allocation corresponding to antenna port 0 is 4 RBs, and the frequency domain resource allocation corresponding to antenna port 1 is 2 RBs. When the total transmit power of the uplink transmission is P, the transmit power ratio of antenna port 0 and antenna port 1 is 2:1, i.e., 2 / 3P and 1 / 3P, respectively. By proportionally dividing the linear value of the maximum transmit power, it is possible to support antenna ports with high maximum transmit power to make better use of their high transmit power capabilities. The PA capability of each antenna port can be maximized while ensuring the uniform power spectrum density of each RE.

[0148] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it 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 embodiment of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the method described in each embodiment of the embodiment of the present application.

[0149] Example 2

[0150] In this embodiment, a scheduling method for uplink transmission is provided. Figure 5 is a flowchart of a scheduling method for uplink transmission according to an embodiment of the present application, such as Figure 5 As shown, the process includes the following steps:

[0151] Step S502, the second communication node sends scheduling information for uplink transmission to the first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, wherein N is a positive integer greater than 1;

[0152] Step S504: The second communication node receives the uplink transmission sent by the first communication node.

[0153] The scheduling information is used to instruct the first communication node to evenly divide the frequency domain resources into N frequency domain resource sets.

[0154] The number of resources indicated by the scheduling information is N times the product of non-negative integer powers of 2, 3, and 5.

[0155] The frequency domain resource includes one of the following: a resource block RB, a resource element RE.

[0156] The scheduling information is used to instruct the first communication node to allocate the required number of frequency domain resources to each of the frequency domain resource sets in sequence according to the resource order of the frequency domain resources.

[0157] The scheduling information is used to instruct the first communication node to allocate frequency domain resources to each resource set in turn according to the resource order of the frequency domain resources until the allocation is completed.

[0158] The scheduling information is further used to instruct the first communication node to allocate the frequency domain resources to each of the frequency domain resource sets according to the maximum power of the spatial domain resource information corresponding to the frequency domain resource set.

[0159] The first communication node includes at least: a user equipment UE, and the second communication node includes at least: a network side device.

[0160] Example 3

[0161] This embodiment also provides a resource transmission device for implementing the above-mentioned embodiments and preferred implementations. Details already described will not be repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0162] Figure 6 is a structural block diagram of a sending device for uplink transmission according to an embodiment of the present application, such as Figure 6 As shown, the device includes:

[0163] a division module 62, configured to divide the frequency domain resources indicated by the scheduling information into N frequency domain resource sets;

[0164] The transmission module 64 is configured to transmit the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information, where M and N are positive integers greater than 1.

[0165] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0166] Example 4

[0167] In this embodiment, a resource scheduling device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments. Details already described will not be repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0168] Figure 7 is a structural block diagram of a scheduling device for uplink transmission according to an embodiment of the present application, such as Figure 7 As shown, the device includes:

[0169] a sending module 72, configured to send scheduling information for uplink transmission to the first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, where N is a positive integer greater than 1;

[0170] The receiving module 74 is configured to receive the uplink transmission sent by the first communication node.

[0171] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0172] Example 4

[0173] An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0174] In this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0175] S1, obtain scheduling information for uplink transmission;

[0176] S2, dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets;

[0177] S3: Send the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information, where M and N are positive integers greater than 1.

[0178] or

[0179] S1, the second communication node sends scheduling information for uplink transmission to the first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, where N is a positive integer greater than 1;

[0180] S2, the second communication node receives the uplink transmission sent by the first communication node.

[0181] In this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0182] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0183] The electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0184] In this embodiment, the processor may be configured to execute the following steps through a computer program:

[0185] S1, obtain scheduling information for uplink transmission;

[0186] S2, dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets;

[0187] S3: Send the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information, where M and N are positive integers greater than 1.

[0188] or

[0189] S1, the second communication node sends scheduling information for uplink transmission to the first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, where N is a positive integer greater than 1;

[0190] S2, the second communication node receives the uplink transmission sent by the first communication node.

[0191] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0192] Obviously, those skilled in the art should understand that the various modules or steps of the above-mentioned embodiments of the present application can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented using program codes executable by the computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be performed in a different order than herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the embodiments of the present application are not limited to any specific combination of hardware and software.

Claims

1. A method for sending uplink transmission, characterized in that: include: Obtaining scheduling information for uplink transmission; Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets; Sending the uplink transmission carried by the N frequency domain resource sets according to M spatial domain resource information, where M and N are positive integers greater than 1; The value of M is determined according to the scheduling information of the uplink transmission; The number M of spatial resource information is determined according to at least one of the following contents in the scheduling information of the uplink transmission: The number of antenna ports included in the sounding reference signal SRS resource corresponding to the sounding reference signal resource indication SRI domain; The number of antenna ports included in the SRS resource set corresponding to the SRI domain; Precoding information; Coherence capability of the antenna port.

2. The method according to claim 1, characterized in that The spatial resource information includes at least one of the following: antenna port information, antenna panel information, transmission chain information, beam information, precoding codeword information, spatial relationship information, and reference signal information.

3. The method according to claim 2, characterized in that Sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information includes one of the following: Sending the uplink transmission carried by the frequency domain resource set according to the antenna port indicated by the antenna port information; Sending the uplink transmission carried by the frequency domain resource set according to the antenna panel indicated by the antenna panel information; Sending the uplink transmission carried by the frequency domain resource set according to the transmission chain indicated by the transmission chain information; Sending the uplink transmission carried by the frequency domain resource set according to the beam indicated by the beam information; Sending the uplink transmission carried by the frequency domain resource set according to the non-zero power antenna port in the precoding codeword indicated by the precoding codeword information; Sending the uplink transmission carried by the frequency domain resource set according to the same transmission parameters as the spatial relationship information; The uplink transmission carried by the frequency domain resource set is sent according to the same transmission parameters as the reference signal information.

4. The method according to claim 1, wherein The scheduling information for uplink transmission includes at least one of the following: Indication information of a precoding codeword corresponding to a related capability of the spatial resource higher than that in the spatial resource information; Indication information for representing precoding codewords corresponding to relevant capabilities of multiple spatial resources that conform to the spatial resource information.

5. The method according to claim 1, characterized in that The method further comprises: Determine the value of N based on the value of M; or The value of N is determined according to the value of M and the coherence capability of the airspace resources of the airspace resource information.

6. The method according to claim 1, characterized in that The method further includes: sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information; Each of the N frequency domain resource sets carries the uplink transmission.

7. The method according to claim 1, characterized in that Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets, including: The frequency domain resources indicated by the scheduling information are evenly divided into N frequency domain resource sets.

8. The method according to claim 1, wherein the number of resources indicated by the scheduling information is N times the product of non-negative integer powers of 2, 3, and 5.

9. The method according to claim 1, characterized in that Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets, including: According to the resource order of the frequency domain resources indicated by the scheduling information, a required number of frequency domain resources are allocated to each of the frequency domain resource sets in sequence.

10. The method according to claim 1, characterized in that Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets, including: According to the resource sequence of the frequency domain resources indicated by the scheduling information, frequency domain resources are allocated to each resource set in turn until all allocations are completed.

11. The method according to claim 1 or 2, characterized in that Dividing the frequency domain resources indicated by the scheduling information into N frequency domain resource sets, including: Frequency domain resources are allocated to each of the frequency domain resource sets according to the maximum transmit power of the spatial domain resources of the spatial domain resource information corresponding to the frequency domain resource set.

12. The method according to claim 1, characterized in that The method further includes: sending the uplink transmission carried by the N frequency domain resource sets according to the M spatial domain resource information; Allocating the total transmit power of the uplink transmission to the M spatial resources of the spatial resource information; The transmission power of each of the spatial domain resource allocations is evenly distributed on the frequency domain resources of the corresponding frequency domain resource set.

13. The method according to claim 12, characterized in that Allocating the total transmit power of the uplink transmission to the M pieces of spatial resource information includes: Evenly distributing the total transmit power of the uplink transmission on the M spatial resources of the spatial resource information; or, The total transmission power of the uplink transmission is distributed to the M spatial domain resources of the spatial domain resource information according to the ratio between the number of frequency domain resources corresponding to the M spatial domain resources of the spatial domain resource information.

14. A scheduling method for uplink transmission, characterized in that: include: The second communication node sends scheduling information for uplink transmission to the first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, wherein the uplink transmission carried by the N frequency domain resource sets is sent according to M spatial domain resource information, where M and N are positive integers greater than 1; The second communication node receives the uplink transmission sent by the first communication node; The value of M is determined according to the scheduling information of the uplink transmission; The number M of spatial resource information is determined according to at least one of the following contents in the scheduling information of the uplink transmission: The number of antenna ports included in the sounding reference signal SRS resource corresponding to the sounding reference signal resource indication SRI domain; The number of antenna ports included in the SRS resource set corresponding to the SRI domain; Precoding information; Coherence capability of the antenna port.

15. The method according to claim 14, characterized in that The scheduling information is used to instruct the first communication node to evenly divide the frequency domain resources into N frequency domain resource sets.

16. The method according to claim 15, wherein the number of resources indicated by the scheduling information is N times the product of non-negative integer powers of 2, 3, and 5.

17. The method according to claim 16, characterized in that include: The frequency domain resource includes one of the following: a resource block RB, a resource element RE.

18. The method according to claim 14, characterized in that The scheduling information is used to instruct the first communication node to allocate the required number of frequency domain resources to each of the frequency domain resource sets in sequence according to the resource order of the frequency domain resources.

19. The method according to claim 14, wherein The scheduling information is used to instruct the first communication node to allocate frequency domain resources to each resource set in turn according to the resource order of the frequency domain resources until the allocation is completed.

20. The method according to claim 14, wherein The scheduling information is also used to instruct the first communication node to allocate the frequency domain resources to each frequency domain resource set according to the maximum transmission power of the spatial domain resources of the spatial domain resource information corresponding to the frequency domain resource set.

21. The method according to any one of claims 14 to 20, characterized in that The first communication node includes at least: a user equipment UE, and the second communication node includes at least: a network side device.

22. A sending device for uplink transmission, characterized in that: Located in the first communication node, including: An acquisition module, used to obtain scheduling information for uplink transmission; a division module, configured to divide the frequency domain resources indicated by the scheduling information into N frequency domain resource sets; a transmission module, configured to send the uplink transmission carried by the N frequency domain resource sets according to M spatial domain resource information, where M and N are positive integers greater than 1; The value of M is determined according to the scheduling information of the uplink transmission; The apparatus is further configured to determine the number M of spatial resource information according to at least one of the following contents in the scheduling information of the uplink transmission: The number of antenna ports included in the sounding reference signal SRS resource corresponding to the sounding reference signal resource indication SRI domain; The number of antenna ports included in the SRS resource set corresponding to the SRI domain; Precoding information; Coherence capability of the antenna port.

23. A scheduling device for uplink transmission, characterized in that: include: Located in the second communication node, including: a sending module, configured to send scheduling information for uplink transmission to a first communication node, wherein the scheduling information for uplink transmission is used to instruct the first communication node to divide frequency domain resources into N frequency domain resource sets, wherein the uplink transmission carried by the N frequency domain resource sets is sent based on M spatial domain resource information, where M and N are positive integers greater than 1; a receiving module, configured to receive the uplink transmission sent by the first communication node; The value of M is determined according to the scheduling information of the uplink transmission; The number M of spatial resource information is determined according to at least one of the following contents in the scheduling information of the uplink transmission: The number of antenna ports included in the sounding reference signal SRS resource corresponding to the sounding reference signal resource indication SRI domain; The number of antenna ports included in the SRS resource set corresponding to the SRI domain; Precoding information; Coherence capability of the antenna port.

24. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 13 and 14 to 21.

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