Data transmission method and apparatus, storage medium, and program product

Abstract

A data transmission method and apparatus, a storage medium, and a program product. The method is applied to a first communication node, and comprises: on the basis of a first transmission resource, transmitting a first signal to a second communication node, wherein the first signal is a signal other than a pilot signal.

Description

Data transmission methods, devices, storage media and software products

[0001] This disclosure claims priority to Chinese patent application No. 202510144109.0, filed on February 8, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a data transmission method, apparatus, storage medium, and program product. Background Technology

[0003] In wireless communication, the sender embeds a pilot signal when transmitting data, and the receiver estimates the channel state based on the pilot signal in order to detect and decode the data. Summary of the Invention

[0004] On the one hand, a data transmission method is provided, which is applied to a first communication node, including: transmitting a first signal to a second communication node based on a first transmission resource, wherein the first signal is a signal other than a pilot signal.

[0005] On the other hand, a data transmission method is provided, which is applied to a second communication node, comprising: receiving a first signal from a first communication node based on a first transmission resource, wherein the first signal is a signal other than a pilot signal.

[0006] In another aspect, a data transmission apparatus is provided, applied to a first communication node, the apparatus comprising: a transmission module. The transmission module is configured to transmit a first signal to a second communication node based on first transmission resources, the first signal being a signal other than a pilot signal.

[0007] In another aspect, a data transmission apparatus is provided for use in a second communication node, the apparatus comprising: a receiving module. The receiving module is configured to receive a first signal from a first communication node based on a first transmission resource, the first signal being a signal other than a pilot signal.

[0008] On another front, a data transmission apparatus is provided, comprising: a memory and a processor. The memory and the processor are coupled. The memory is used to store a computer program. When the processor executes the computer program, it implements the aforementioned data transmission method.

[0009] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the above-described data transmission method.

[0010] On another front, a computer program product is provided, which includes computer program instructions that, when executed, implement the aforementioned data transmission method. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.

[0012] Figure 1 is a schematic diagram of a data transmission system according to some embodiments of the present disclosure.

[0013] Figure 2 is a flowchart illustrating a data transmission method according to some embodiments of the present disclosure.

[0014] Figure 3 is a schematic diagram of a first RE set in a configuration according to some embodiments of the present disclosure that does not contain frequency domain resources of RS.

[0015] Figure 4 is a schematic diagram of the frequency domain resources of the first RE set containing RS according to some embodiments of the present disclosure.

[0016] Figure 5 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0017] Figure 6 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0018] Figure 7 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0019] Figure 8 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0020] Figure 9 is a schematic diagram of DMRS and data modulation according to some embodiments of the present disclosure.

[0021] Figure 10 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0022] Figure 11 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0023] Figure 12 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0024] Figure 13 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0025] Figure 14 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0026] Figure 15 is a flowchart illustrating another data transmission method according to some embodiments of the present disclosure.

[0027] Figure 16 is a block diagram of a data transmission apparatus according to some embodiments of the present disclosure.

[0028] Figure 17 is a block diagram of another data transmission apparatus according to some embodiments of the present disclosure.

[0029] Figure 18 is a block diagram of another data transmission apparatus according to some embodiments of the present disclosure. Detailed Implementation

[0030] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0031] It should be noted that, in this disclosure, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0032] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0033] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more items, and "multiple" means two or more items.

[0034] With the rapid development of wireless communication technology, spectrum resources (also known as time-frequency resources) are becoming increasingly scarce. Improving spectrum efficiency means transmitting more data with limited spectrum resources to meet the ever-increasing communication demands. With the development of future communication technologies, high-definition video streaming, extended reality, and other technologies, data traffic is experiencing explosive growth. To support these high-data-rate applications, we need more efficient spectrum utilization technologies. For example, future communication technologies could include 6th generation mobile communication technology (6G).

[0035] In this embodiment of the disclosure, for a user equipment (UE), its secondary cell (SCell) can be the primary cell of another UE, or it can be understood as a cell, serving cell, carrier, frequency band, bandwidth part (BWP), or frequency resource element, etc. A PCell can be understood as a cell, serving cell, carrier, frequency band, bandwidth part, or frequency resource element, etc. A carrier can be understood as a cell, serving cell, frequency band, bandwidth part, or frequency resource element, etc. A synchronization signal block (PBCH, SSB) is equivalent to a secondary synchronization signal (SSS), a primary synchronization signal (PSS), a synchronization signal (SS), a measurement signal, a signal from an idle or inactive UE, a signal from a connected UE, a physical broadcast channel (PBCH), or a master information block (MIB).

[0036] However, pilot overhead reduces spectral efficiency. Furthermore, pilot overhead can limit the application of some new technologies, such as massive MIMO (multiple-input multiple-output) technology. These pilot overhead issues become more pronounced when dealing with more antennas or more antenna ports.

[0037] To address the aforementioned issues, this disclosure provides a data transmission method in which a first communication node transmits a first signal to a second communication node based on a first transmission resource. The first signal is a signal other than a pilot signal. For example, transmitting the first signal based on the first transmission resource originally intended for transmitting a pilot signal reduces the time-frequency resources occupied by the pilot signal. This reduces pilot overhead and improves spectral efficiency, effectively utilizing limited spectrum resources. Consequently, higher data rates, lower latency, and improved user experience are achieved.

[0038] For example, as shown in FIG1, a data transmission system provided in an embodiment of the present disclosure may include: a first communication node 101 and a second communication node 102.

[0039] The first communication node 101 is connected to the second communication node 102.

[0040] The first communication node 101 is used to transmit a first signal, excluding the pilot signal, to the second communication node 102 based on the first transmission resources. Correspondingly, the second communication node 102 receives the first signal from the first communication node 101 based on the first transmission resources.

[0041] Alternatively, the second communication node 102 sends a first signal to the first communication node 101 based on the first transmission resources. Correspondingly, the first communication node 101 receives the first signal from the second communication node 102 based on the first transmission resources.

[0042] In this embodiment of the disclosure, the first communication node 101 may be a terminal, and the second communication node 102 may be a base station.

[0043] A terminal can be a device with wireless transceiver capabilities. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on. The embodiments of this disclosure do not limit the application scenarios. Terminals may also be referred to as users, UEs, passive Internet of Things (A-IoT) devices, access terminals, UE units, UE stations, mobile stations, mobile stations, remote stations, transmitters, remote terminals, mobile devices, UE terminals, wireless communication devices, UE agents, or UE devices, etc., and the embodiments of this disclosure do not limit these terms.

[0044] Base stations can be base stations in Long Term Evolution (LTE), Long Term Evolution Advanced (LTEA), or Evolutionary Node Bs (eNBs or eNodeBs), next-generation Node Bs (gNBs or gNodeBs) in 5G networks, or base stations in future data transmission systems. Base stations can include various macro base stations, micro base stations, femtobase stations, remote wireless extensions, reconfigurable intelligent surfaces (RISS), routers, relay stations, transmission and reception points (TRPs), receivers, access points, wireless fidelity (Wi-Fi) devices, and other network-side equipment. Base stations can sometimes be referred to as readers / writers used for communication with terminals; however, this disclosure does not limit this terminology.

[0045] It should be noted that Figure 1 is only an exemplary framework diagram, and the number of devices included in Figure 1 and the names of each device are not limited. When the first communication node 101 is a terminal and the second communication node 102 is a base station, the data transmission scenario is an uplink transmission scenario.

[0046] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0047] The application of this disclosure to the first communication node can be understood as the first communication node performing the relevant steps, and the application of this disclosure to the second communication node can be understood as the second communication node performing the relevant steps.

[0048] Figure 2 shows a flowchart of a data transmission method. As shown in Figure 2, this data transmission method is applied to the first communication node, including S201:

[0049] S201. Based on the first transmission resource, transmit the first signal to the second communication node.

[0050] The first signal is any signal other than the pilot signal.

[0051] In some embodiments, the first transmission resource may be a time-frequency resource (time domain resource and / or frequency domain resource) used for transmitting pilot signals in related technologies. The time-frequency resource may also be referred to as a resource block (RB) or a physical resource block (PRB).

[0052] The first transmission resource can also be called a resource element set (RE set). An RE set is a group of configured time-frequency resources (REs). RE sets have a distributed characteristic; for example, the smallest unit in an RE set is uniformly distributed in the time and / or frequency domains. This distributed characteristic facilitates improved channel estimation performance. The smallest unit of a RE set can be the first RE set. The first RE set can include one RE or a group of time-frequency resources (REs), i.e., multiple REs, for example, N consecutive REs, where N is an integer greater than 1.

[0053] Pilot signals can also be called demodulation reference signals (DMRS), reference signals (RS), or channel state information reference signals (CSI-RS), etc.

[0054] For example, all the gray squares in Figure 3 represent a RE set, and all the gray squares and all the white squares in Figure 4 represent a RE set. One gray square represents a first RE set, and one white square represents a first RE set.

[0055] The first signal can be a system information block (SIB) or a physical downlink shared channel (PDSCH). The first signal can be any other signal besides the pilot signal, and this disclosure does not limit it.

[0056] In other words, this disclosure can transmit (receive / transmit) a first signal other than the pilot signal based on the RE set used for transmitting pilot signals in related technologies, thereby reducing the time-frequency resources occupied by the pilot signal. This reduces the time-frequency resources occupied by the pilot signal.

[0057] In some embodiments, the DMRS configuration method and parameters can be directly reused to configure the RE set. These parameters may include time-domain location, frequency-domain location, code division multiplexing (CDM), etc. The first RE set can be configured using semi-persistent scheduling (SPS) or configured grant (CG) methods.

[0058] In some embodiments, the symbol position of the RE set can be represented by the configuration parameter dmrs-TypeA-Position{pos(i)}, where pos(i) represents one or more symbol indices, i = 0, 1, 2, or 3. For example, when the PDSCH / physical uplink shared channel (PUSCH) occupies m symbols, pos0 represents l0, pos1 represents l0 and 7 (i.e., pos1 represents the position of the starting symbol and the position of the 7th symbol), pos2 represents l0 and 7; pos3 represents l0 and 7; m is a positive integer greater than 3. Another example, when the PDSCH / PUSCH occupies 12 symbols, pos0 represents l0, pos1 represents l0 and 9, pos2 represents l0, 6, and 9; pos3 represents l0, 5, 8, and 11; l0 is the position of the starting symbol.

[0059] In some embodiments, the number of symbols in the RE set can be represented by the configuration parameter maxLength.

[0060] Figure 5 shows a flowchart of another data transmission method. As shown in Figure 5, the method in step S201 above specifically includes S301:

[0061] S301. Based on all or part of the transmission resources included in the first transmission resources, transmit the first signal to the second communication node.

[0062] Of the total transmission resources, the second part, excluding the first part, is used to transmit pilot signals.

[0063] In other words, transmitting the first signal to the second communication node based on all the transmission resources included in the first transmission resources means that all time-frequency resources used to transmit pilot signals in the related technology are used to transmit the first signal. At this time, the pilot signal does not occupy time-frequency resources, which means that the pilot signal occupies the least amount of time-frequency resources.

[0064] The transmission of a first signal to a second communication node based on a portion of the first transmission resources and the transmission of a pilot signal to the second communication node based on another portion of the transmission resources refers to the related technology in which a portion of the transmission resources are used to transmit the first signal, while the other portion of the transmission resources are still used to transmit the pilot signal. In this case, the pilot signal occupies time-frequency resources, but the time-frequency resources occupied are relatively small.

[0065] For example, as shown in Figure 3, the RE set (i.e., all gray squares) in Figure 3 are used to transmit the first signal, and the RE set is orthogonal to the large packet PDSCH. In this case, the first signal may not have a pilot, and blind channel estimation is required. The modulation method of the first signal can be referred to the description in the following embodiments, and will not be repeated here.

[0066] As shown in Figure 4, a portion of the RE set (i.e., all gray squares) is used to transmit the first signal. This RE set is orthogonal to the large packet PDSCH. The other portion of the RE set (i.e., all white squares) is used to transmit the pilot signal (i.e., RS). In other words, the first RE set contains sparse (sparse in the time domain or frequency domain) DMRS, and the pilot positions of the DMRS are a subset of the REs in the RE set. Therefore, additional parameters (e.g., position parameters) are needed to configure the pilot positions of the sparse DMRS. For an explanation of how to configure the pilot positions of the sparse DMRS based on the position parameters, please refer to the description in the following embodiments; it will not be repeated here.

[0067] Figure 6 shows a flowchart of another data transmission method. The first signal carries the first data. As shown in Figure 6, before step S301 above, the method further includes S401-S402:

[0068] S401, Obtain target signaling.

[0069] The target signaling includes at least one of the following parameters: the data type of the first data, the location parameters of the transmission resources corresponding to the first signal, the location parameters of the second part of the transmission resources, the configuration parameters of the transmission block, the configuration parameters of the code block group, the power information of the first signal, and the indication information of whether the downlink control message bit field is enabled.

[0070] In other words, the data type of the first data carried by the first signal can be specified through target signaling, so as to transmit specific data based on the first transmission resource and improve resource utilization. For example, the first RE set can be configured to transmit SIB.

[0071] The target signaling can specify the location parameters of the transmission resources corresponding to the first signal, so as to transmit the first signal through the transmission resources at the corresponding location. The target signaling can also specify the location parameters of the second part of the transmission resources corresponding to the pilot signal, so as to transmit the pilot signal through the transmission resources at the corresponding location.

[0072] The target signaling can specify the configuration parameters of the transport block (TB) to support multiplexing between code blocks of different quality of service (QoS). The target signaling can also specify the configuration parameters of the code block group (CBG) to support CBG transmission and CBG-level hybrid automatic repeat request-acknowledgement (HARQ-ACK) messages.

[0073] In some embodiments, the configuration parameters of a transport block can be the number of TB / CBGs corresponding to one PDSCH / PUSCH.

[0074] For example, the RE set of the first signal corresponds to an additional CBG, and the TB corresponding to the second signal is divided into a maximum of N CBGs, where N is an integer greater than 0, and the additional CBG is the (N+1)th CBG.

[0075] In some embodiments, the first type of CBG is defined as the TB / PDSCH transmitted in the first RE set. Additionally, a TB corresponding to the second signal is divided into a maximum of N CBGs, where N is an integer greater than 0.

[0076] The power allocated to the first signal can be specified by the first signal power information included in the target signaling, so that the first signal can be transmitted according to the allocated power.

[0077] The target signaling includes an indication of whether the downlink control message bit field is enabled. If the downlink control message bit field is enabled, the function is activated, meaning the bit field can indicate relevant control information. If the downlink control message bit field is disabled, the function is disabled, meaning the UE does not need to read the bit field information. In this way, the target signaling can indicate the downlink control information (DCI) that the UE needs to detect, reducing blind DCI detection.

[0078] The target signaling can be higher-layer signaling, and the UE receives higher-layer signaling from the base station.

[0079] S402. Process the first data or the source information of the first data according to the target signaling to obtain the first signal.

[0080] In some embodiments, the location parameters of all transmission resources or the first part of the transmission resources include the time-domain symbol index and / or the number of time-domain symbols; or the location parameters of all transmission resources or the first part of the transmission resources include: time-domain offset and period.

[0081] For example, as shown in Figure 3, assuming the horizontal axis (sym-i) represents time-domain symbols and the vertical axis (sub-c) represents frequency-domain subcarriers, one configuration method for a RE set includes: the time-domain symbol index can be 3, 9, and 15 (i.e., the time-domain positions of the RE set include {3, 9, 15}), and the number of time-domain symbols in each RE set is 6.

[0082] Another configuration method for the RE set includes a time-domain offset of 3 (i.e., the coordinates of the first symbol in the time domain are 3) and a period of 6 symbols. In another example, the first RE set can include multiple consecutive symbols. The period can also be T slots, where T is a positive integer.

[0083] As shown in Figure 4, assuming the horizontal axis (sym-i) represents the frequency domain subcarrier and the vertical axis (sub-c) represents the time domain symbol, the time domain symbol index of the RE set can be 3, 5, 9 and 11, and the number of time domain symbols of the first transmission resource is 4.

[0084] In some embodiments, the location parameters of the second part of the transmission resource include the time-domain symbol index and / or the number of time-domain symbols.

[0085] For example, as shown in Figure 4, assuming the horizontal axis (i.e., sym-i) represents the frequency domain subcarrier and the vertical axis (i.e., sub-c) represents the time domain symbol, the time domain symbol index of the RE set can be 1 and 7, and the number of time domain symbols is 2.

[0086] In some embodiments, the data type of the first data is any one of the following: system information, control information, or data information.

[0087] For example, system information can be SIB information. Control information can be DCI.

[0088] In some embodiments, the downlink control message (DCI) bit field includes at least one of the following parameters:

[0089] Modulation method;

[0090] Transport block size related information;

[0091] Instructions to activate or deactivate all transport resources;

[0092] Instructions for activating or deactivating the first part of the transport resources;

[0093] Information related to the power ratio of the modulation symbol.

[0094] In some embodiments, it can be assumed that DCI can activate a first RE set, limiting the allocation of that resource to the first data (e.g., SIB) transmission. This limitation of resource allocation to SIB transmission can be achieved by designing the DCI bit field. The content of the DCI bit field includes: modulation scheme, transport block size related information, indication information for activating or deactivating all or a first portion of the transport resources, and modulation symbol power ratio related information. Through DCI indication, the UE can flexibly adapt to channel conditions and service data packet requirements, improving scheduling and transmission efficiency.

[0095] In some embodiments, the modulation method of the first data is any one of the following: π / 2 binary phase shift keying (BPSK), binary phase shift keying, and on-off keying (OOK).

[0096] π / 2 can also be called Pi / 2. That is to say, by setting the modulation method of the first data, the modulation of the first data can be achieved, so as to realize the transmission of the first data.

[0097] In some embodiments, the amount of source information of the first data is less than a preset threshold.

[0098] In other words, by setting the source information data volume of the first data to be less than a preset threshold, the business type can be restricted, meaning that only business data with a data volume less than the preset threshold can be transmitted.

[0099] For example, the source information data size of the first data can be TB size. The preset threshold can be the maximum value of SIB1 bit size.

[0100] In some embodiments, an orthogonal frequency division multiplexing (OFDM) symbol includes a third portion of transmission resources included in a first transmission resource, and an OFDM also includes a portion of transmission resources included in a second transmission resource.

[0101] In other words, the OFDM symbols containing the first RE set are transmitted as one OFDM symbol, and each OFDM symbol is modulated and transmitted according to the methods in related technologies. In this way, the modulation and demodulation implementation methods in related technologies can be reused, reducing the implementation cost of the UE.

[0102] In some embodiments, one orthogonal frequency division multiplexing symbol includes a third portion of the transmission resources included in the first transmission resource, and another orthogonal frequency division multiplexing symbol includes a portion of the transmission resources included in the second transmission resource.

[0103] In other words, the symbol containing the first RE set is transmitted as two OFDM symbols, namely, the PDSCH / PUSCH of the SIB / first signal and the PDSCH / PUSCH of the second signal are independently modulated and transmitted. In this way, the first signal can be carried using a single OFDM symbol, simplifying demodulation.

[0104] Figure 7 shows a flowchart of another data transmission method. As shown in Figure 7, before step S201 above, the method further includes step S501:

[0105] S501, Map the first signal to all transmission resources or a first part of the transmission resources.

[0106] In some embodiments, on time-frequency resources (e.g., a PRB), a first signal is mapped to a RE set and transmitted as a PDSCH / PUSCH. In related technologies, the RS is mapped to the RE set, and the second signal is mapped to REs other than the RE set. That is, the first signal can be mapped to all transmission resources or a first portion of transmission resources. Transmitting the first signal in this way can improve spectral efficiency and support simultaneous scheduling by both the second and first signal users.

[0107] As can be seen from the above embodiments, the terminal knows the location of the complete set RE set.

[0108] In some embodiments, when DMRS is a single symbol, a single terminal can use resources on only an even number of subcarriers.

[0109] In some embodiments, the base station can perform two sets of RE mappings simultaneously. The first mapping performs a first signal map to the RE set, and the second mapping performs a second signal map to REs other than the RE set.

[0110] In addition to the mapping method of mapping the first signal to all transmission resources or the first part of transmission resources (i.e., mapping method one), there is another mapping method for the first signal. The following embodiments introduce another mapping method for the first signal (i.e., mapping method two).

[0111] Figure 8 shows a flowchart of another data transmission method. As shown in Figure 8, before step S201 above, the method further includes steps S601-S604:

[0112] S601, Convert the pilot signal into a modulation symbol.

[0113] The modulation symbols are either binary phase shift keying modulation symbols or π / 2 binary phase shift keying modulation symbols.

[0114] In some embodiments, the first communication node can convert the pilot signal into modulation symbols according to the modulation scheme included in the downlink control message bit field. The modulation scheme can be π / 2 binary phase-shift keying modulation or binary phase-shift keying modulation. If the modulation scheme is π / 2 binary phase-shift keying modulation, then the modulation symbols are π / 2 binary phase-shift keying modulation symbols. If the modulation scheme is binary phase-shift keying modulation, then the modulation symbols are binary phase-shift keying modulation symbols.

[0115] S602, Assign the power ratio of the modulation symbol to the first signal.

[0116] In some embodiments, the first communication node may allocate the power ratio of the modulation symbol to the first signal based on the power ratio information of the modulation symbol included in the downlink control message bit field.

[0117] For example, if the power ratio of the modulation symbol is 2:1, then the power ratio of the modulation symbol to the first signal is 2:1.

[0118] S603. Based on the power ratio, the modulation symbol and the first signal are superimposed to obtain the third signal.

[0119] S604. Map the third signal to all transmission resources or the first part of the transmission resources.

[0120] In some embodiments, the first communication node may obtain a third signal by superimposing modulation symbols and a first signal based on the power ratio, and then map the third signal to all transmission resources or a first portion of transmission resources.

[0121] For example, the first communication node can superimpose the DMRS symbol / CSI-RS symbol with the first signal to obtain the superimposed signal (i.e., the third signal in this disclosure). The DMRS symbol can be a Pi / 2BPSK symbol. On time-frequency resources (e.g., a PRB), the first signal superimposed with the DMRS symbol / CSI-RS symbol is mapped to the RE set. In this way, data transmission also occurs on the pilot signal resources, resulting in improved spectral efficiency.

[0122] In some embodiments, it may be assumed that the DMRS symbol is a sequence of defined [1, -1] elements, or multiple e jθ The sequence of elements is shown in Table 1 below [e jpi / 4 e -jpi / 4 e j3pi / 4 e -j3pi / 4 Then, the DMRS symbol / CSI-RS symbol is superimposed on the first signal through the following steps:

[0123] Step 1: Transform the DMRS symbol sequence into a modulation symbol sequence, such as a BPSK sequence or a pi / 2BPSK sequence.

[0124] Step 2: Assign power ratios to DMRS symbols and the first signal and perform symbol-level superposition.

[0125] Table 1

[0126] Among them, Table 1 The number of symbols for PUSCH or PDSCH. For the scrambling code ID parameter, n SCID For another scrambling code ID parameter, Pseudo-random sequence is a pseudo-random sequence, and DMRS sequence is a DMRS symbol sequence.

[0127] In some embodiments, the DMRS symbol sequence is transformed into a modulation symbol sequence through the following steps:

[0128] Step 1: Map each element in the DMRS symbol sequence to 1 bit.

[0129] Step 2: Modulate the DMRS symbol sequence and data symbols onto the synthesized constellation. Figure 9 shows the modulation of the DMRS symbol sequence and data symbols onto the synthesized constellation using high-order Quadrature Amplitude Modulation (QAM). The data symbols can be the data (data) quadrature phase shift keying (QPSK) modulated symbols shown in Figure 9. The DMRS symbol sequence can be the DMRS (demodulation reference signal) modulated symbols shown in Figure 9.

[0130] In some embodiments, the first communication node can map the second signal to REs other than the RE set on a PRB, i.e., mapping method three.

[0131] In some embodiments, the first signal is used to estimate the channel state between the first communication node and the second communication node.

[0132] In other words, the first signal on the RE set can be used as a pilot for the second signal. That is, by demodulating the first signal on the first RE set, the channel state between the first communication node and the second communication node can be estimated. Thus, the channel state can be estimated.

[0133] Figure 10 shows a flowchart of another data transmission method. As shown in Figure 10, the method also includes S701:

[0134] S701. Transmit the second signal to the second communication node based on the second transmission resources.

[0135] The second transmission resource (also known as the large packet PDSCH) can be any transmission resource other than the first transmission resource. For example, the black squares in Figures 3 and 4. The second signal can be any signal other than the first signal and the pilot signal.

[0136] In some embodiments, the first communication node may transmit a first signal on the RE set and transmit a second signal in the same PRB or the same RB on a time-frequency resource outside the RE set (i.e., the second transmission resource in this disclosure).

[0137] In some embodiments, assuming some prior information about the location of the first RE set is known, based on the power allocation aspect, the high-power signal is first decoded, and the power information is determined by the following method: for OFDM symbols containing RE sets, the power ratio of the modulation symbol to the first signal is allocated according to the power ratio information of the modulation symbol included in the downlink control message bit field.

[0138] The data transmission method provided in this disclosure is applicable to the physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), and PUSCH.

[0139] The terminal capabilities include: UE reporting UE capabilities, which include supporting features in the embodiments; for example, supporting a first transmission resource and transmitting a first signal to a second communication node, wherein the first signal is a signal other than a pilot signal.

[0140] Figure 11 shows a flowchart of another data transmission method applied to a second communication node. As shown in Figure 11, the method includes S801:

[0141] S801, Receive a first signal from a first communication node based on the first transmission resource.

[0142] In some embodiments, the second communication node may receive a first signal from the first communication node based on the first transmission resources.

[0143] For a description of the first transmission resource and the first signal, please refer to the description of the embodiment in S201 above, which will not be repeated here.

[0144] Figure 12 shows a flowchart of another data transmission method. As shown in Figure 12, the method in step S801 above specifically includes S901:

[0145] S901. Based on all or part of the transmission resources included in the first transmission resources, receive a first signal from the first communication node.

[0146] For a description of all or part of the transmission resources included in the first transmission resource, please refer to the description of the embodiment in S301 above, which will not be repeated here.

[0147] In some embodiments, the first signal carries first data, which is obtained by processing the first data or the source information of the first data according to the target signaling. The target signaling includes at least one of the following parameters: the data type of the first data, the location parameters of the transmission resource corresponding to the first signal, the location parameters of the second part of the transmission resource, the configuration parameters of the transmission block, the configuration parameters of the code block group, the power information of the first signal, and the indication information of whether the downlink control message bit field is enabled.

[0148] For a description of the first data and target signaling, please refer to the description of the embodiment in S401 above, which will not be repeated here.

[0149] In some embodiments, the location parameters of all transmission resources or the first portion of transmission resources include the time-domain symbol index and / or the number of time-domain symbols; or the location parameters of all transmission resources or the first portion of transmission resources include: time-domain offset and period.

[0150] For a description of the location parameters of all transmission resources or the first part of the transmission resources, please refer to the description of the embodiments, which will not be repeated here.

[0151] In some embodiments, the location parameters of the second part of the transmission resource include the time-domain symbol index and / or the number of time-domain symbols.

[0152] The location parameters of the second part of the transmission resources can be referred to the description in the above embodiments, and will not be repeated here.

[0153] In some embodiments, the data type of the first data is any one of the following: system information, control information, or data information.

[0154] The data type of the first data can be referred to the description in the above embodiments, and will not be repeated here.

[0155] In some embodiments, the downlink control message bit field includes at least one of the following parameters:

[0156] Modulation method;

[0157] Transport block size related information;

[0158] Instructions to activate or deactivate all transport resources;

[0159] Instructions for activating or deactivating the first part of the transport resources;

[0160] Information related to the power ratio of the modulation symbol.

[0161] For a description of the parameters included in the downlink control message bit field, please refer to the description in the above embodiments, which will not be repeated here.

[0162] In some embodiments, the modulation method of the first data is any one of the following: π / 2 binary phase shift keying modulation, binary phase shift keying modulation, and on / off keying modulation.

[0163] The modulation method of the first data can be referred to the description of the above embodiments, and will not be repeated here.

[0164] In some embodiments, the amount of data in the first data is less than a preset threshold.

[0165] The description of the data volume of the first data can be found in the above embodiment, and will not be repeated here.

[0166] In some embodiments, an orthogonal frequency division multiplexing symbol includes a third portion of the transmission resources included in the first transmission resources, and also includes a portion of the transmission resources included in the second transmission resources.

[0167] In some embodiments, one orthogonal frequency division multiplexing symbol includes a third portion of the transmission resources included in the first transmission resource, and another orthogonal frequency division multiplexing symbol includes a portion of the transmission resources included in the second transmission resource.

[0168] For an introduction to orthogonal frequency division multiplexing symbols, please refer to the description in the above embodiments, which will not be repeated here.

[0169] In some embodiments, the first signal is a signal mapped to all transmission resources or a first portion of transmission resources.

[0170] The description of the mapping of the first signal to all transmission resources or the first part of the transmission resources can be found in the description of the above embodiments, and will not be repeated here.

[0171] Figure 13 shows a flowchart of another data transmission method. As shown in Figure 13, after step S801 above, the method further includes S1001:

[0172] S1001. Estimate the channel state between the first communication node and the second communication node based on the first signal.

[0173] In some embodiments, the second communication node can first obtain the channel estimate (i.e., the channel state in this disclosure) corresponding to the first RE set, and then demodulate the first signal. In this way, the estimated channel state can be obtained and the first signal can be demodulated.

[0174] Figure 14 shows a flowchart of another data transmission method. As shown in Figure 14, before or after step S801 above, the method further includes S1101:

[0175] S1101, Receive a second signal from the first communication node based on the second transmission resource.

[0176] In some embodiments, the second communication node can receive a second signal from the first communication node based on a second transmission resource. Further, the second communication node can first obtain the channel estimate corresponding to the first RE set, then demodulate the first signal, then obtain the channel estimate corresponding to the time-frequency resources outside the first RE set, and then demodulate the second signal. This allows for the estimation of the channel state and the demodulation of the first and second signals.

[0177] The following describes the data transmission method provided in the above embodiment, taking the interaction between the first communication node and the second communication node as an example, as shown in Figure 15, including:

[0178] S1201, the first communication node transmits a first signal to the second communication node based on the first transmission resources. Simultaneously, the first communication node transmits a second signal to the second communication node based on the second transmission resources. Correspondingly, the second communication node receives the first signal from the first communication node based on the first transmission resources. Simultaneously, the second communication node receives the second signal from the first communication node based on the second transmission resources. In this way, the transmission of the first and second signals can be realized.

[0179] It is understood that, in order to achieve the above-mentioned functions, the data transmission device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments of this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0180] This disclosure embodiment can divide the data transmission device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0181] Figure 16 is a block diagram of a data transmission apparatus according to some embodiments of the present disclosure. The data transmission apparatus 1400 can be applied to a first communication node and execute the data transmission method shown in Figure 2 above. As shown in Figure 16, the data transmission apparatus 1400 includes a transmission module 1401.

[0182] The transmission module 1401 is used to transmit a first signal to a second communication node based on the first transmission resources. The first signal is a signal other than the pilot signal.

[0183] In some embodiments, the transmission module 1401 is further configured to transmit a first signal to a second communication node based on all transmission resources or a first portion of transmission resources included in the first transmission resources, wherein the second portion of transmission resources other than the first portion of transmission resources is used to transmit pilot signals.

[0184] In some embodiments, the first signal carries first data, and the data transmission device 1400 further includes an acquisition module 1402 and a processing module 1403.

[0185] The acquisition module 1402 is used to acquire target signaling, which includes at least one of the following parameters: the data type of the first data, the location parameters of the transmission resources corresponding to the first signal, the location parameters of the second part of the transmission resources, the configuration parameters of the transmission block, the configuration parameters of the code block group, the power information of the first signal, and the indication information of whether the downlink control message bit field is enabled. The processing module 1403 is used to process the first data or the source information of the first data according to the target signaling to obtain the first signal.

[0186] In some embodiments, the processing module 1403 is further configured to map the first signal to all transmission resources or a first portion of transmission resources.

[0187] In some embodiments, the processing module 1403 is further configured to convert the pilot signal into a modulation symbol, wherein the modulation symbol is a binary phase-shift keying modulation symbol or a π / 2 binary phase-shift keying modulation symbol. The processing module 1403 is further configured to allocate a power ratio between the modulation symbol and the first signal. The processing module 1403 is further configured to superimpose the modulation symbol and the first signal based on the power ratio to obtain a third signal. The processing module 1403 is further configured to map the third signal to all transmission resources or a first portion of transmission resources.

[0188] In some embodiments, the transmission module 1401 is further configured to transmit a second signal to a second communication node based on the second transmission resources.

[0189] Figure 17 is a block diagram of another data transmission apparatus according to some embodiments of the present disclosure. The data transmission apparatus 1500 can be applied to a second communication node and execute the data transmission method shown in Figure 11 above. As shown in Figure 17, the data transmission apparatus 1500 includes a receiving module 1501.

[0190] The receiving module 1501 is used to receive a first signal from the first communication node based on the first transmission resources. The first signal is a signal other than the pilot signal.

[0191] In some embodiments, the receiving module 1501 is further configured to receive a first signal from the first communication node based on all or a first portion of the transmission resources included in the first transmission resources.

[0192] In some embodiments, the data transmission apparatus 1500 further includes a processing module 1502. The processing module 1502 is configured to estimate the channel state between the first communication node and the second communication node based on a first signal.

[0193] In some embodiments, the receiving module 1501 is further configured to receive a second signal from the first communication node based on the second transmission resources.

[0194] In implementing the functions of the integrated modules described above in hardware, this disclosure provides another structure for the data transmission device involved in the above embodiments. As shown in FIG18, the data transmission device 1600 includes a processor 1602 and a bus 1604. In some embodiments, the data transmission device may further include a memory 1601. In some embodiments, the data transmission device may further include a communication interface 1603.

[0195] Processor 1602 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1602 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a digital signal processor (DSP), and a microprocessor, etc.

[0196] The communication interface 1603 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0197] The memory 1601 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0198] In some embodiments, the memory 1601 may exist independently of the processor 1602. The memory 1601 may be connected to the processor 1602 via a bus 1604 and may be used to store instructions or program code. When the processor 1602 calls and executes the instructions or program code stored in the memory 1601, it can implement the data transmission method provided in the embodiments of this disclosure.

[0199] In other embodiments, memory 1601 may also be integrated with processor 1602.

[0200] Bus 1604 can be an extended industry standard architecture (EISA) bus, etc. Bus 1604 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 18, but this does not mean that there is only one bus or one type of bus.

[0201] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform a data transmission method as described in any of the above embodiments.

[0202] Exemplary examples show that the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0203] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the data transmission method of any of the above embodiments.

[0204] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method of data transmission, wherein, Applied to a first communication node, the method includes: Based on the first transmission resource, a first signal is transmitted to the second communication node, wherein the first signal is a signal other than the pilot signal.

2. The method of claim 1, wherein, The transmission of the first signal to the second communication node based on the first transmission resource includes: Based on all or part of the transmission resources included in the first transmission resources, the first signal is transmitted to the second communication node, wherein the second part of the transmission resources other than the first part of the transmission resources is used to transmit pilot signals.

3. The method according to claim 2, wherein, The first signal carries first data. Before transmitting the first signal to the second communication node based on all or part of the transmission resources included in the first transmission resources, the method further includes: Obtain target signaling, the target signaling including at least one of the following parameters: the data type of the first data, the location parameters of the transmission resources corresponding to the first signal, the location parameters of the second part of the transmission resources, the configuration parameters of the transmission block, the configuration parameters of the code block group, the first signal power information, and the indication information of whether the downlink control message bit field is enabled. The first data or the source information of the first data is processed according to the target signaling to obtain the first signal.

4. The method according to claim 3, wherein, The location parameters of all transmission resources or the first part of the transmission resources include the time-domain symbol index and / or the number of time-domain symbols; Alternatively, the location parameters of all transmission resources or the first part of the transmission resources may include: time domain offset and period.

5. The method according to claim 3, wherein, The location parameters of the second part of the transmission resources include the time-domain symbol index and / or the number of time-domain symbols.

6. The method according to claim 3, wherein, The data type of the first data is any one of the following: system information, control information, or data information.

7. The method according to claim 3, wherein, The downlink control message bit field includes at least one of the following parameters: Modulation method; Transport block size related information; Instructions for activating or deactivating all of the aforementioned transmission resources; Instructions for activating or deactivating the first portion of the transmission resources; Information related to the power ratio of the modulation symbol.

8. The method according to claim 3, wherein, The modulation method of the first data is any one of the following: π / 2 binary phase shift keying modulation, binary phase shift keying modulation, and on / off keying modulation.

9. The method according to claim 3, wherein, The amount of data in the first data is less than a preset threshold.

10. The method according to claim 1, wherein, An orthogonal frequency division multiplexing symbol includes the third portion of the transmission resources included in the first transmission resource, and also includes a portion of the transmission resources included in the second transmission resource.

11. The method according to claim 1, wherein, One orthogonal frequency division multiplexing symbol includes a third portion of the transmission resources included in the first transmission resource, and another orthogonal frequency division multiplexing symbol includes a portion of the transmission resources included in the second transmission resource.

12. The method according to claim 2, wherein, The method further includes: The first signal is mapped to all of the transmission resources or the first portion of the transmission resources.

13. The method according to claim 2, wherein, The method further includes: The pilot signal is converted into a modulation symbol, which is a binary phase shift keying modulation symbol or a π / 2 binary phase shift keying modulation symbol. Assign the power ratio of the modulation symbol to the first signal; Based on the power ratio, the modulation symbol and the first signal are superimposed to obtain the third signal; The third signal is mapped to either all the transmission resources or the first portion of the transmission resources.

14. The method according to claim 1, wherein, The first signal is used to estimate the channel state between the first communication node and the second communication node.

15. The method according to claim 1, wherein, The method further includes: The second signal is transmitted to the second communication node based on the second transmission resources.

16. A data transmission method, wherein, Applied to a second communication node, the method includes: A first signal is received from a first communication node based on a first transmission resource, wherein the first signal is a signal other than a pilot signal.

17. The method according to claim 16, wherein, Receiving the first signal from the first communication node based on the first transmission resource includes: The first signal is received from the first communication node based on all or part of the first transmission resources included in the first transmission resources.

18. The method according to claim 17, wherein, The first signal carries first data, which is obtained by processing the first data or the source information of the first data according to the target signaling. The target signaling includes at least one of the following parameters: the data type of the first data, the location parameters of the transmission resource corresponding to the first signal, the location parameters of the second part of the transmission resource, the configuration parameters of the transmission block, the configuration parameters of the code block group, the power information of the first signal, and the indication information of whether the downlink control message bit field is enabled.

19. The method according to claim 18, wherein, The location parameters of all transmission resources or the first part of the transmission resources include the time-domain symbol index and / or the number of time-domain symbols; Alternatively, the location parameters of all transmission resources or the first part of the transmission resources may include: time domain offset and period.

20. The method according to claim 18, wherein, The location parameters of the second part of the transmission resources include the time-domain symbol index and / or the number of time-domain symbols.

21. The method according to claim 18, wherein, The data type of the first data is any one of the following: system information, control information, or data information.

22. The method according to claim 18, wherein, The downlink control message bit field includes at least one of the following parameters: Modulation method; Transport block size related information; Instructions for activating or deactivating all of the aforementioned transmission resources; Instructions for activating or deactivating the first portion of the transmission resources; Information related to the power ratio of the modulation symbol.

23. The method according to claim 18, wherein, The modulation method of the first data is any one of the following: π / 2 binary phase shift keying modulation, binary phase shift keying modulation, and on / off keying modulation.

24. The method according to claim 18, wherein, The amount of data in the first data is less than a preset threshold.

25. The method according to claim 16, wherein, An orthogonal frequency division multiplexing symbol includes the third portion of the transmission resources included in the first transmission resource, and also includes a portion of the transmission resources included in the second transmission resource.

26. The method of claim 16, wherein, One orthogonal frequency division multiplexing symbol includes a third portion of the transmission resources included in the first transmission resource, and another orthogonal frequency division multiplexing symbol includes a portion of the transmission resources included in the second transmission resource.

27. The method according to claim 17, wherein, The first signal is a signal mapped to all of the transmission resources or the first portion of the transmission resources.

28. The method according to claim 16, wherein, The method further includes: The channel state between the first communication node and the second communication node is estimated based on the first signal.

29. The method according to claim 16, wherein, The method further includes: The second signal is received from the first communication node based on the second transmission resource.

30. A data transmission device, wherein, include: Memory and processor; The memory and the processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1-29.

31. A computer-readable storage medium, wherein, The computer-readable storage medium includes a non-transitory computer-readable storage medium on which computer instructions are stored, which, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-29.

32. A computer program product, wherein, The computer program product includes computer program instructions that, when executed, implement the method as described in any one of claims 1-29.

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