A method and apparatus for signal energy allocation in a node for wireless communication

Abstract

A method and apparatus for signal energy allocation in a node for wireless communication are disclosed. A first node receives a first information block indicating a first set of REs, and then transmits a first data signal and a first DMRS in the first set of REs. The first data signal and the first DMRS respectively occupy partially or wholly overlapping REs in the first set of REs; the first set of REs includes a plurality of RE blocks that are orthogonal in the frequency domain; and the energy of the first DMRS on a first RE depends on one of the RE block to which the first RE belongs or the position of the first RE in the RE block to which the first RE belongs. Compared with a conventional orthogonal DMRS, the above method increases the number of REs that can be occupied by a data signal, improves data transmission efficiency, adapts the energy allocation of the DMRS to channel characteristics, and improves channel estimation accuracy.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to schemes and apparatus for signal energy distribution in wireless communication systems. Background Technology

[0002] In the future technological evolution of 5G and 6G, with the popularization of AI (Artificial Intelligence) or ML (Machine Learning) technologies, AI / ML-based channel estimation, demodulation, and decoding technologies have become research hotspots. Since the specifications of AI models may exceed the scope of 3GPP (except for reference models used for performance calibration), the specific implementation methods of AI / ML training and inference may be determined by the hardware equipment manufacturers themselves. These methods can be based on classic models such as Transformer structures, RNNs (Recurrent Neural Networks), and CNNs (Conventional Neural Networks), or hybrid models composed of multiple models.

[0003] In traditional wireless communication, the DMRS (Demodulation Reference Signal) is used to estimate the channel of the PUSCH (Program USCH). The DMRS and the PUSCH carrying the data signal are orthogonal in the time-frequency domain, meaning they occupy different REs (Resource Elements). The advantage is that it reduces or avoids interference between the DMRS and the data. However, the disadvantages include the need to reserve sufficient REs for the DMRS to obtain accurate channel estimation, introducing non-negligible overhead, and reducing data transmission efficiency. Improving transmission efficiency will be a key factor in the future technological evolution of 5G and 6G. Summary of the Invention

[0004] The applicant's research revealed that in traditional wireless communication, the REs (Resource Elements) occupied by DMRS and data signals are orthogonal, thus reducing data transmission efficiency. In the future technological evolution of 5G and 6G, optimizing the design and energy allocation of DMRS is a key issue that needs to be addressed to improve data transmission efficiency.

[0005] In view of the above problems, this application discloses a solution. It should be noted that although the motivation for this application stems from AI / ML-based processing (such as encoding / decoding, channel estimation) technologies, this application is also applicable to other AI / ML-based receiving / transmitting technologies, and technologies combining AI / ML-based processing with traditional non-AI / ML processing. This is especially true considering that specific AI / ML algorithms are likely non-standardized or implemented by hardware vendors themselves. Furthermore, adopting a unified solution can reduce implementation complexity or cost, or improve performance. Unless otherwise specified, the embodiments and features in the first node of this application can be applied to the second node. Unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0006] Where necessary, the interpretation of terms used in this application may be referenced to the descriptions in the TS38 series of specification protocols of the 3GPP (3rd Generation Partner Project).

[0007] This application discloses a method used in a first node of wireless communication, characterized by comprising:

[0008] Receive a first information block, the first information block indicating a first RE set;

[0009] Send a first data signal and a first DMRS in the first RE set;

[0010] Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

[0011] As an example, the problems to be solved by this application include: how to optimize the design and energy distribution of DMRS.

[0012] As an example, in the above method, the data signal and DMRS can occupy the same REs. The advantages include: compared to traditional orthogonal DMRS, it increases the number of REs that can be occupied by the data signal, thus improving data transmission efficiency.

[0013] As an example, in the above method, the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block. The advantages include high flexibility and strong adaptability.

[0014] As one example, the first node is a user equipment.

[0015] As an example, the first node is a relay node.

[0016] As one example, the first node is a terminal.

[0017] As one example, the terminal is a user equipment.

[0018] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs, the first DMRS has the same energy on each RE in the same RE block, and the first DMRS has different energy on two REs belonging to two different RE blocks.

[0019] As an example, in the above method, the energy allocation of the first DMRS is at the RE block level, meaning that different RE blocks can be allocated different amounts of energy, but all REs within the same RE block are allocated the same amount of energy. The advantages are that it better adapts to the frequency selectivity of the channel, improves channel estimation accuracy, simplifies the design, and reduces potential signaling indication overhead (such as the indication overhead of the first ratio set).

[0020] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on two REs in a RE block is different.

[0021] As an example, in the above method, the energy allocation of the first DMRS is at the RE level within a RE block. The advantage is that it adapts well to the time-varying characteristics or frequency selectivity of the channel, provides high channel estimation accuracy, improves data transmission reliability, and increases transmission capacity.

[0022] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0023] As an example, in the above method, the energy allocation of the first DMRS is at the RE level within a RE block, and the same RE energy allocation method is used between different RE blocks. The advantage is that it simplifies the design and saves potential signaling indication overhead (such as the indication overhead of the first ratio set in this application).

[0024] According to one aspect of this application, the first DMRS includes a plurality of ports; on the first RE, the energy on a first port of the first DMRS depends on either the location of the first port among the plurality of ports or the port group to which the first port belongs; the first port is one of the plurality of ports.

[0025] As an example, in the above method, the energy or energy ratio of different ports of the first DMRS on the same RE can be different, which well adapts to the different channel characteristics of different DMRS ports or different layers, improves the channel estimation accuracy, improves the data transmission reliability and increases the transmission capacity.

[0026] According to one aspect of this application, the energy on all REs in the first RE set is the same, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

[0027] As an example, the advantages of the above method include: simplified design and low implementation complexity.

[0028] According to one aspect of this application, the energy on the plurality of RE blocks is the same, and the energy on any RE block in the plurality of RE blocks is equal to the total energy of the first data signal and the first DMRS on the RE block; the energy on two REs in one of the plurality of RE blocks is different, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that RE.

[0029] As an example, in the above method, the total energy is uniformly distributed among RE blocks, but can be non-uniformly distributed among different REs within a single RE block. The advantages are that it adapts to the time-varying characteristics or frequency selectivity of the channel, improves channel estimation accuracy, enhances data transmission reliability and increases transmission capacity, simplifies design, and saves signaling indication overhead.

[0030] According to one aspect of this application, the first RE set has the same energy on different symbols, and the energy of the first RE set on one symbol is equal to the total energy of the first data signal and the first DMRS on all REs on that one symbol.

[0031] As an example, the above method ensures that the energy in the time domain remains unchanged, resulting in low implementation complexity.

[0032] According to one aspect of this application, the first ratio set includes a plurality of ratios, wherein the energy percentage of the first DMRS on a plurality of REs is equal to the plurality of ratios, and at least two of the plurality of ratios are different.

[0033] As an example, in the above method, the first set of ratios is specified in a standard, configured by RRC signaling, or reported by the first node.

[0034] According to one aspect of this application, the first ratio set depends on the indication of the first information block.

[0035] As an example, in the above method, the first ratio set is indicated by signaling indicating the first RE set, which improves flexibility.

[0036] According to one aspect of this application, it is characterized by comprising:

[0037] Receive the second information block;

[0038] The first ratio set depends on the indication of the second information block.

[0039] As an example, in the above method, the first ratio set is indicated by signaling different from that of the first information block, thereby reducing the signaling overhead of the first information block.

[0040] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0041] Send a first information block, which indicates a first RE set;

[0042] Receive the first data signal and the first DMRS in the first RE set;

[0043] Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

[0044] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs, the first DMRS has the same energy on each RE in the same RE block, and the first DMRS has different energy on two REs belonging to two different RE blocks.

[0045] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on two REs in a RE block is different.

[0046] According to one aspect of this application, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0047] According to one aspect of this application, the first DMRS includes a plurality of ports; on the first RE, the energy on a first port of the first DMRS depends on either the location of the first port among the plurality of ports or the port group to which the first port belongs; the first port is one of the plurality of ports.

[0048] According to one aspect of this application, the energy on all REs in the first RE set is the same, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

[0049] According to one aspect of this application, the energy on the plurality of RE blocks is the same, and the energy on any RE block in the plurality of RE blocks is equal to the total energy of the first data signal and the first DMRS on the RE block; the energy on two REs in one of the plurality of RE blocks is different, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that RE.

[0050] According to one aspect of this application, the first RE set has the same energy on different symbols, and the energy of the first RE set on one symbol is equal to the total energy of the first data signal and the first DMRS on all REs on that one symbol.

[0051] According to one aspect of this application, the first ratio set includes a plurality of ratios, wherein the energy percentage of the first DMRS on a plurality of REs is equal to the plurality of ratios, and at least two of the plurality of ratios are different.

[0052] In the above method, the first set of ratios is specified in a standard, configured by RRC signaling, or reported by the first node.

[0053] According to one aspect of this application, the first ratio set depends on the indication of the first information block.

[0054] According to one aspect of this application, it is characterized by comprising:

[0055] Send the second information block;

[0056] The first ratio set depends on the indication of the second information block.

[0057] This application discloses a first node used for wireless communication, characterized in that it comprises:

[0058] A first receiver receives a first information block, the first information block indicating a first RE set;

[0059] The first transmitter transmits a first data signal and a first DMRS in the first RE set;

[0060] Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

[0061] This application discloses a second node used for wireless communication, characterized in that it comprises:

[0062] The second transmitter sends a first information block, which indicates the first RE set;

[0063] The second receiver receives the first data signal and the first DMRS from the first RE set;

[0064] Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

[0065] As an example, compared with conventional solutions, this application has the following advantages:

[0066] - Compared with traditional orthogonal DMRS, it increases the number of REs that can be occupied by data signals, thereby improving data transmission efficiency;

[0067] - It adapts to the time-varying characteristics or frequency selectivity of the channel, improving the accuracy of channel estimation;

[0068] -Simplifies the design and reduces the overhead of possible signaling indications (such as the indication overhead of the first ratio set);

[0069] - It can support AI / ML-based wireless channel processing, including demodulation, decoding, channel estimation and other technologies. Attached Figure Description

[0070] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0071] Figure 1 A flowchart illustrating a first information block, a first data signal, and a first DMRS according to an embodiment of this application is shown;

[0072] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0073] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0074] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0075] Figure 5 A flowchart illustrating the transmission between a first node and a second node according to an embodiment of this application is shown;

[0076] Figure 6 A schematic diagram of the energy of the first DMRS on the first RE according to an embodiment of this application is shown;

[0077] Figure 7 A schematic diagram of the energy of the first DMRS on the first RE according to another embodiment of this application is shown;

[0078] Figure 8 A schematic diagram of the energy of the first DMRS on the first RE according to another embodiment of this application is shown;

[0079] Figures 9A-9C Schematic diagrams of the energy on the first port of the first DMRS according to one embodiment of this application are shown respectively;

[0080] Figure 10 A schematic diagram of energy allocation in a first RE set according to an embodiment of this application is shown;

[0081] Figure 11 A schematic diagram of energy allocation in a first RE set according to another embodiment of this application is shown;

[0082] Figure 12 A schematic diagram of energy allocation in a first RE set according to another embodiment of this application is shown;

[0083] Figures 13A-13B Schematic diagrams of a first ratio set according to an embodiment of this application are shown respectively;

[0084] Figure 14 A schematic diagram of the transmission power on a first RE set according to an embodiment of this application is shown;

[0085] Figure 15 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0086] Figure 16 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0087] The technical solutions of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Considering performance, flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, such as, but not limited to, those in the accompanying drawings. Figure 1 Examples and appendices Figure 5 - Appendix Figure 16 The embodiments in the appendix Figure 5 Examples and appendices Figure 6 - Appendix Figure 16 Examples, etc.

[0088] Example 1

[0089] Example 1 illustrates a flowchart of a first information block, a first data signal, and a first DMRS according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the 100 shown, each box represents a step.

[0090] In Embodiment 1, the first node receives a first information block in step 101; and transmits a first data signal and a first DMRS in a first RE set in step 102; wherein the first information block indicates the first RE set; the first data signal and the first DMRS occupy partially or completely overlapping REs in the first RE set; the first RE set includes multiple RE blocks orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, and the first RE is an RE in the first RE set.

[0091] As one embodiment, the first information block is carried by RRC signaling or the first information block includes MACCE.

[0092] As one example, the first information block is transmitted over a physical layer channel.

[0093] As one embodiment, the first information block includes DCI (Downlink Control Information).

[0094] As one embodiment, the first information block includes a DCI, and the first information block schedules the first data signal.

[0095] As an example, the first information block indicates the overlap of REs occupied by the first DMRS and the first data signal, respectively.

[0096] As an example, the first information block indicates that the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively.

[0097] As an example, the first information block indicates the configuration information of the first DMRS; the configuration information of the first DMRS includes at least one of the following: the symbol occupied by the first DMRS, the RB or subcarrier occupied by the first DMRS, the port of the first DMRS, and the overlap of the REs occupied by the first DMRS and the first data signal, respectively.

[0098] In the above method, the overlap condition includes one or more of the following: whether there is overlap, partial overlap or full overlap, and the ratio of overlapping REs in the first RE set.

[0099] As an example, the first data signal is transmitted on the physical layer channel carrying the data.

[0100] As an example, the first data signal is transmitted on PUSCH (Physical Uplink Shared Channel).

[0101] As an example, the first data signal is mapped to UL-SCH (Uplink Shared Channel).

[0102] As an example, the first data signal carries UL-SCH (Uplink Shared Channel) data.

[0103] As an example, the data in the first data signal comes from DRB (Data Radio Bearer).

[0104] As an example, the data in the first data signal undergoes at least channel coding, scrambling, modulation, layer mapping, precoding, mapping to resource element, and OFDM (Orthogonal Frequency Division Multiplexing) baseband signal generation to obtain the first data signal.

[0105] As an example, the data in the first data signal undergoes at least channel coding, scrambling, modulation, layer mapping, transform precoding, precoding, mapping to resource element, and OFDM (Orthogonal Frequency Division Multiplexing) baseband signal generation to obtain the first data signal.

[0106] As one embodiment, the first information block indicates at least one RB and at least one symbol, and the first RE set includes some or all of the REs on the at least one RB and the at least one symbol.

[0107] As one embodiment, the first RE set is all REs included in a PUSCH transmission occasion scheduled by the first information block, or the first RE set is a subset of REs included in a PUSCH transmission occasion scheduled by the first information block.

[0108] As an example, the first information block indicates the scheduling information of the first data signal. The scheduling information of the first data signal includes one or more of the following: configuration information of the first DMRS, layer number, TCI (Transmission configuration indicator) status or beam, MCS (Modulation and coding scheme), occupied RB (Resource block) or subcarrier, occupied symbol, and HARQ process number.

[0109] In the above method, the configuration information of the first DMRS includes at least one of the following: the symbol occupied by the first DMRS, the RB or subcarrier occupied by the first DMRS, the port of the first DMRS, and the overlap of the REs occupied by the first DMRS and the first data signal, respectively. The overlap includes one or more of the following: whether there is overlap, partial overlap, or full overlap, and the ratio of overlapping REs in the first RE set.

[0110] The first DMRS is used by the second node to estimate the channels in the first RE set in order to recover the data carried in the first data signal; the total number of ports included in the first DMRS is equal to the total number of layers included in the first data signal.

[0111] As one embodiment, the first RE set includes multiple RE blocks orthogonal in the frequency domain, each of the multiple RE blocks including the same number of REs, each of the multiple RE blocks occupying the same number of subcarriers or RBs (Resource Blocks), and each of the multiple RE blocks occupying the same number of symbols.

[0112] As an example, the first RE set includes a plurality of RE blocks orthogonal in the frequency domain, each of the plurality of RE blocks being an RB in the frequency domain, and the plurality of RE blocks occupying the same symbol.

[0113] As one embodiment, the first RE set includes multiple RE blocks that are orthogonal in the frequency domain. The multiple RE blocks belong to multiple sub-bands in the frequency domain, and the multiple RE blocks occupy the same symbol.

[0114] As an example, the first RE set includes multiple RE blocks that are orthogonal in the frequency domain, each of which belongs to a different carrier in the frequency domain and occupies the same symbol.

[0115] Typically, an RE occupies one subcarrier in the frequency domain and one symbol in the time domain.

[0116] As an example, the symbol is a single-carrier symbol.

[0117] As an example, the symbol is a multi-carrier symbol.

[0118] As an example, the symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0119] As an example, the symbols are subjected to transformation precoding.

[0120] As an example, the symbols are generated by transformation precoding followed by IFFT (Inverse Fast Fourier Transform).

[0121] As an example, the symbol is the DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0122] As an example, the symbol is either SC-FDMA (Single Carrier-Frequency Division Multiple Access) or FBMC (Filter Bank Multi Carrier).

[0123] As an example, the energy of the first data signal on each RE in the first RE set is equal to or greater than 0, and the energy of the first DMRS on each RE in the first RE set is equal to or greater than 0.

[0124] As an example, the energy of the first data signal on each RE in the first RE set is greater than 0, and the energy of the first DMRS on each RE in the first RE set is greater than 0.

[0125] As an example, the first RE is any RE in the first set of REs.

[0126] As an example, the first RE is the RE occupied by the first DMRS in the first RE set.

[0127] As an example, the first RE is the RE in the first RE set that is occupied by both the first data signal and the first DMRS.

[0128] As one example, the energy percentage of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE within its respective RE block.

[0129] In the above method, the energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on the RE minus the energy on the RE, and the energy on the RE is equal to the total energy of the first data signal and the first DMRS on the RE.

[0130] or,

[0131] The energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on that RE minus the energy of the first data signal on that RE;

[0132] or,

[0133] The energy percentage of the first DMRS on a RE is equal to the energy of the first data signal on the RE minus the energy of the first DMRS on the RE.

[0134] As an example, whether the energy or power in the first RE set is first allocated among the plurality of RE blocks or first allocated between the first data signal and the first DMRS is predefined or indicated by signaling sent by the base station.

[0135] Example 2

[0136] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown.

[0137] Appendix Figure 2The network architecture 200 is described. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or a 5G+ network architecture, or a 6G network architecture, or a network architecture adopted in future evolutions by 3GPP; the network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System), or 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203. The RAN may also include other nodes 204. Node 203 provides user and control plane protocol termination toward UE 201. Node 203 may be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver node), or some other suitable term. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides UE 201 with an access point to the core network 210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. Internet services 230 include operator-compliant Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0138] As an example, the first node includes the UE201.

[0139] As one embodiment, the second node includes the node 203.

[0140] As one embodiment, the second node includes the core network 210.

[0141] As one embodiment, the second node includes the node 203 and the core network 210.

[0142] The above methods facilitate the flexible deployment of AI models on network devices.

[0143] As an example, node 203 is a macrocell base station.

[0144] As an example, node 203 is a microcell base station.

[0145] As an example, node 203 is a PicoCell base station.

[0146] As an example, node 203 is a femtocell.

[0147] As an example, node 203 is a base station device that supports large latency differences.

[0148] As an example, node 203 is a flight platform device.

[0149] As one example, node 203 is a satellite device.

[0150] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0151] As an example, the first node and the second node in this application are the UE201 and the node203, respectively.

[0152] As an example, node 203 supports AI (Artificial Intelligence) or machine learning.

[0153] As an example, node 203 supports channel estimation using AI or machine learning.

[0154] As an example, node 203 supports signal reception using AI or machine learning.

[0155] As an example, node 203 supports generating a trained model using training data or generating some parameters of the trained model using training data.

[0156] As an example, the first information block is generated in node 203.

[0157] As an example, the target recipient of the first information block includes the UE201.

[0158] As an example, the second information block is generated in node 203.

[0159] As an example, the target recipient of the second information block includes the UE201.

[0160] As an example, the first data signal and the first DMRS are generated in the UE201.

[0161] As an example, the target receiver of the first data signal and the first DMRS includes the node 203.

[0162] Example 3

[0163] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown.

[0164] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first communication node device (UE, gNB, or RSU in V2X) and the second communication node device (gNB, UE, or RSU in V2X), or between two UEs, is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to as PHY 301 in this document. Layer 2 (L2 layer) 305, above PHY 301, is responsible for the link between the first and second communication node devices, or between two UEs. Layer 2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-cell mobility between second communication node devices and the first communication node device. RLC sublayer 303 provides upper layer data packet segmentation and reassembly, retransmission of lost data packets, and data packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between the first communication node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first communication node devices. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second communication node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity. Although not illustrated, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.).

[0165] As an example, Appendix Figure 3 The wireless protocol architecture described above is applicable to the first node.

[0166] As an example, Appendix Figure 3 The wireless protocol architecture described above is applicable to the second node.

[0167] As an example, the higher layer mentioned in this application refers to the layer above the physical layer.

[0168] As an example, the first information block is generated in the RRC sublayer 306.

[0169] As an example, the first information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0170] As an example, the first information block is generated in the PHY301 or the PHY351.

[0171] As an example, the second information block is generated in the RRC sublayer 306.

[0172] As an example, the second information block is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0173] As an example, the second information block is generated in the PHY301 or the PHY351.

[0174] As an example, the first data signal and the first DMRS are generated in the PHY301 or the PHY351.

[0175] Example 4

[0176] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. (Attached) Figure 4This is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0177] The first communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0178] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0179] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In DL (Downlink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 layer (i.e., physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, generating one or more parallel... The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domains, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into an RF stream, which is then provided to a different antenna 420.

[0180] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2 (L2). The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL (Layered Logic), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 (L3) for L3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0181] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the first communication device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0182] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. The controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from the second communication device 450. The upper-layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0183] As one embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 means at least: receiving a first information block, the first information block indicating a first RE set; transmitting a first data signal and a first DMRS in the first RE set; wherein the first data signal and the first DMRS occupy partially or completely overlapping REs in the first RE set; the first RE set includes a plurality of RE blocks orthogonal in the frequency domain; the energy of the first DMRS on a first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, the first RE being an RE in the first RE set.

[0184] As one embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first information block indicating a first set of REs; transmitting a first data signal and a first DMRS in the first set of REs; wherein the first data signal and the first DMRS occupy partially or completely overlapping REs in the first set of REs; the first set of REs includes a plurality of RE blocks orthogonal in the frequency domain; the energy of the first DMRS on a first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, wherein the first RE is an RE in the first set of REs.

[0185] As one embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 means at least: transmitting a first information block, the first information block indicating a first RE set; receiving a first data signal and a first DMRS in the first RE set; wherein the first data signal and the first DMRS occupy partially or completely overlapping REs in the first RE set; the first RE set includes a plurality of RE blocks orthogonal in the frequency domain; the energy of the first DMRS on a first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, the first RE being an RE in the first RE set.

[0186] As one embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: transmitting a first information block indicating a first set of REs; receiving a first data signal and a first DMRS in the first set of REs; wherein the first data signal and the first DMRS occupy partially or completely overlapping REs in the first set of REs; the first set of REs includes a plurality of RE blocks orthogonal in the frequency domain; the energy of the first DMRS on a first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, and the first RE is an RE in the first set of REs.

[0187] As an example, the first node in this application includes the second communication device 450.

[0188] As an example, the second node in this application includes the first communication device 410.

[0189] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block in this application; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to transmit the first information block in this application.

[0190] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second information block in this application; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to transmit the second information block in this application.

[0191] As an example, at least one of {the antenna 452, the transmitter 454, the transmitter processor 468, the multi-antenna transmitter processor 457, the controller / processor 459, the memory 460, and the data source 467} is used in this application to transmit a first data signal and a first DMRS in the first RE set; at least one of {the antenna 420, the receiver 418, the receiver processor 470, the multi-antenna receiver processor 472, the controller / processor 475, and the memory 476} is used in this application to receive a first data signal and a first DMRS in the first RE set.

[0192] As an example, at least one of {the antenna 420, the transmitter / receiver 418, the receiver processor 470, the multi-antenna receiver processor 472, the transmitter processor 416, the multi-antenna transmitter processor 471, the controller / processor 475, and the memory 476} is used to perform channel estimation based on the first DMRS in the second node using AI or machine learning.

[0193] As an example, at least one of {the antenna 420, the transmitter / receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to process the first data signal in the second node using AI or machine learning, wherein the processing of the first data signal includes at least one of demodulation and decoding.

[0194] Example 5

[0195] Example 5 illustrates a flowchart of the transmission between a first node and a second node according to an embodiment of this application; as attached. Figure 5 As shown.

[0196] In the appendix Figure 5 In this context, the second node N1 and the first node U1 are communication nodes that transmit data via the air interface. (Appendix) Figure 5 In the diagram, the steps in box F51 are optional.

[0197] For the first node U1, in step S510, the second information block is received; in step S511, the first information block is received; in step S512, the first data signal and the first DMRS are sent in the first RE set.

[0198] For the second node N1, in step S520, a second information block is sent; in step S521, a first information block is sent; and in step S522, a first data signal and a first DMRS are received in the first RE set.

[0199] In embodiment 5, the first information block indicates the first RE set; the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes a plurality of RE blocks orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

[0200] As an example, step F51 is absent, the first ratio set includes multiple ratios, the energy percentage of the first DMRS on multiple REs is equal to the multiple ratios respectively, and at least two of the multiple ratios are different; the first ratio set depends on the indication of the first information block.

[0201] As an example, step F51 exists, where the first ratio set depends on the indication of the second information block.

[0202] As an example, the first node U1 is the first node in this application.

[0203] As an example, the second node N1 is the second node in this application.

[0204] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between the base station equipment and the user equipment.

[0205] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between the relay node device and the user equipment.

[0206] As one embodiment, the air interface between the second node N1 and the first node U1 includes a wireless interface between user equipment and user equipment.

[0207] As one example, the second node N1 is the serving cell sustaining base station of the first node U1.

[0208] As an example, the processing of at least one of the first data signal and the first DMRS by the second node is based on AI; the processing of at least one of the first data signal and the first DMRS by the second node includes at least one of channel estimation, demodulation, and decoding.

[0209] In the above method, the decoding is channel decoding, or the decoding is joint decoding of the source and the channel.

[0210] As an example, the channel estimation of the second node on the first DMRS is based on AI.

[0211] As one embodiment, the second node recovers the data carried by the first data signal based on AI; or, at least one of the demodulation and decoding of the first data signal by the second node is based on AI.

[0212] In the above method, the AI ​​includes ML (Machine Learning).

[0213] Compared to the current system where the REs used by DMRS and data are orthogonal, the above method has significant advantages because the REs used by data and DMRS can be the same: for example, it increases the number of REs available for data transmission, improves data transmission capacity, and enhances transmission reliability. Furthermore, the use of AI improves the accuracy of channel estimation on DMRS and enhances the performance of data demodulation and decoding.

[0214] In the above method, the processing of at least one of the first data signal and the first DMRS by the second node is implementation-dependent, i.e., determined by the hardware equipment vendor of the second node; several typical but non-limiting implementations are described below:

[0215] In one implementation, the second node estimates the channel matrix based on the first DMRS. Then, the second node demultiplexes the DMRS and the data, and demodulates and decodes the demultiplexed data signal to recover the data carried therein.

[0216] The second node can estimate the channel matrix based on the first DMRS using a traditional channel estimation algorithm or an AI-based algorithm. For example, the second node can input the signal on at least the RE occupied by the first DMRS and the DMRS sequence into an AI model, and the output of the AI ​​model can be used to obtain the estimated channel matrix.

[0217] The data recovery of the second node can be based on traditional (i.e., non-AI) algorithms, or it can be entirely based on AI, or partially based on AI, i.e., a combination of AI and non-AI.

[0218] The demultiplexed data signal and the estimated channel matrix are input into the AI ​​model, and the output of the AI ​​model is used to recover the data carried on the first data signal.

[0219] The channel estimation and data recovery process described above can be iterated multiple times to improve the accuracy of channel estimation and data recovery.

[0220] The structure and parameters of the AI ​​model in the above embodiments are known to the second node. For example, they may be obtained by downloading from a network device, or they may be specified in a standard, or they may be implementation-related to the second node (i.e., determined by the hardware device manufacturer of the receiver of the first data signal).

[0221] Example 6

[0222] Example 6 illustrates a schematic diagram of the energy of the first DMRS on the first RE according to an embodiment of this application; as attached. Figure 6 As shown.

[0223] In Example 6, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs; the first DMRS has the same energy on each RE within the same RE block; the first DMRS has different energy on two REs belonging to two different RE blocks. (See Appendix...) Figure 6 In this configuration, the energy of the first DMRS on each RE in RE block #1 is E1, and the energy of the first DMRS on each RE in RE block #2 is E2, where E1 and E2 are different; if the first RE is in RE block #1, the energy of the first DMRS on the first RE is E1; if the first RE is in RE block #2, the energy of the first DMRS on the first RE is E2.

[0224] As one embodiment, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs, including: the energy of the first DMRS on the REs in the plurality of RE blocks are multiple energy values, at least two of the multiple energy values ​​are different, and the energy of the first DMRS on the first RE is the energy value corresponding to the RE block to which the first RE belongs among the multiple energy values.

[0225] As one embodiment, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs, including: the first DMRS has the same energy percentage on each RE in the same RE block, the first DMRS has different energy percentages on two REs belonging to two different RE blocks, and the energy percentage of the first DMRS on the first RE is the energy percentage of the first DMRS on the REs in the RE block to which the first RE belongs.

[0226] In the above method, the energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on the RE minus the energy on the RE, and the energy on the RE is equal to the total energy of the first data signal and the first DMRS on the RE.

[0227] or,

[0228] The energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on that RE minus the energy of the first data signal on that RE;

[0229] or,

[0230] The energy percentage of the first DMRS on a RE is equal to the energy of the first data signal on the RE minus the energy of the first DMRS on the RE.

[0231] In the above method, the energy allocation of the first DMRS is at the RE block level, meaning that different RE blocks can be allocated different amounts of energy, but all REs within the same RE block are allocated the same amount of energy. The advantages are better adaptation to channel frequency selectivity, simplified design, and reduced signaling indication overhead (such as the indication overhead of the first ratio set).

[0232] Example 7

[0233] Example 7 illustrates a schematic diagram of the energy of the first DMRS on the first RE according to another embodiment of this application; as attached. Figure 7 As shown.

[0234] In Example 7, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on the two REs in a RE block is different.

[0235] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on two frequency domain orthogonal REs in a RE block is different.

[0236] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on REs of two different subcarriers in a RE block is different.

[0237] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its RE block. The energy of the first DMRS on REs of two different subcarriers in a RE block is different, while the energy of the first DMRS on all REs of the same subcarrier is the same.

[0238] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on the same subcarrier and different symbols of the two REs in the same RE block is different.

[0239] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its RE block. The energy of the first DMRS on two REs of the same subcarrier and different symbols in a RE block is different. The energy of the first DMRS on all REs of the same symbol is the same.

[0240] As one embodiment, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the energy or energy percentage of the first DMRS on the first RE depends on the position of the subcarrier occupied by the first RE in all subcarriers in the RE block to which the first RE belongs.

[0241] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes multiple subcarriers in the frequency domain, the energy of the first DMRS on the RE corresponding to each of the multiple subcarriers are multiple energy values, at least two of the multiple energy values ​​are different, and the energy of the first DMRS on the first RE is the energy value corresponding to the subcarrier occupied by the first DMRS on the first RE.

[0242] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes multiple subcarriers in the frequency domain, the energy proportion of the first DMRS on the REs corresponding to the multiple subcarriers are multiple ratios, at least two of the multiple ratios are different, and the energy proportion of the first DMRS on the first RE depends on the position of the subcarrier occupied by the first RE in the multiple subcarriers.

[0243] As one embodiment, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block as follows: the first DMRS has the same energy percentage on REs occupying the same subcarrier, the first DMRS has different energy percentages on two REs occupying different subcarriers in a RE block, and the energy percentage of the first DMRS on the first RE depends on the position of the subcarrier occupied by the first RE in all subcarriers of the RE block.

[0244] As one embodiment, the energy of the first DMRS on the first RE depending on the position of the first RE in the RE block to which it belongs includes: the energy or energy percentage of the first DMRS on the first RE depends on the position of the symbol occupied by the first RE in all symbols of the RE block to which the first RE belongs.

[0245] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes multiple symbols in the time domain, the energy of the first DMRS on the RE corresponding to each of the multiple symbols are multiple energy values, at least two of the multiple energy values ​​are different, and the energy of the first DMRS on the first RE is the energy value corresponding to the symbol occupied by the first DMRS on the first RE.

[0246] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes multiple symbols in the time domain, the energy proportion of the first DMRS on the REs corresponding to the multiple symbols is a multiple ratio, at least two of the multiple ratios are different, and the energy proportion of the first DMRS on the first RE depends on the position of the symbol occupied by the first RE in the multiple symbols.

[0247] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the first RE in the RE block to which it belongs includes multiple symbols in the time domain; the first DMRS has the same energy percentage on REs occupying the same symbol; the first DMRS has different energy percentages on two REs occupying different symbols in a RE block; and the energy percentage of the first DMRS on the first RE depends on the position of the symbol occupied by the first RE in the multiple symbols.

[0248] As one embodiment, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the energy or energy percentage of the first DMRS on the first RE depends on the position of the subcarrier occupied by the first RE in all subcarriers in the RE block to which the first RE belongs, and the position of the symbol occupied by the first RE in all symbols in the RE block to which the first RE belongs.

[0249] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes K subcarriers and L symbols, the first RE includes KL REs, the energy of the first DMRS on the KL REs are KL energy values ​​respectively, the energy of the first DMRS on the first RE is the energy value of the first RE corresponding to the KL energy values, and the first RE is one of the KL REs.

[0250] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, including: the RE block to which the first RE belongs includes K subcarriers and L symbols, the first RE includes KL REs, the energy proportion of the first DMRS on the KL REs is KL ratios respectively, the energy proportion of the first DMRS on the first RE is the ratio of the first RE to which the first RE is one of the KL ratios, and the first RE is one of the KL REs.

[0251] In the above method, the range of subcarrier positions in an RE block is a non-negative integer starting from 0, or a positive integer starting from 1.

[0252] The order of the positions of all subcarriers in an RE block from smallest to largest is consistent with the order of frequencies from lowest to highest, or the order of frequencies from highest to lowest.

[0253] The range of positions of symbols in a RE block is either non-negative integers starting from 0 or positive integers starting from 1.

[0254] The order of all symbols in a RE block from smallest to largest is consistent with the order from earliest to latest.

[0255] In the above method, the energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on the RE minus the energy on the RE, and the energy on the RE is equal to the total energy of the first data signal and the first DMRS on the RE.

[0256] or,

[0257] The energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on that RE minus the energy of the first data signal on that RE;

[0258] or,

[0259] The energy percentage of the first DMRS on a RE is equal to the energy of the first data signal on the RE minus the energy of the first DMRS on the RE.

[0260] In this application, the unit of energy and the unit of energy value are dBm (decibel milliwatt), and the unit of energy percentage and the unit of ratio are dB.

[0261] In the above method, the RE energy allocation of the first DMRS is at the RE level and is based on a single RE block. The advantage is that it adapts well to the time-varying characteristics or frequency selectivity of the channel, improves channel estimation accuracy, enhances data transmission reliability, and increases transmission capacity.

[0262] Example 8

[0263] Example 8 illustrates a schematic diagram of the energy of the first DMRS on the first RE according to another embodiment of this application; as attached. Figure 8 As shown.

[0264] In Example 8, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0265] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block. The energy of the first DMRS on two REs in one RE block is different, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0266] In the above method, the RE energy allocation of the first DMRS is RE-level and based on a single RE block, with different RE blocks using the same RE energy allocation method. The advantages are that it simplifies the design, saves signaling indication overhead (such as the indication overhead of the first ratio set), better adapts to the time-varying characteristics or frequency selectivity of the channel, improves channel estimation accuracy, enhances data transmission reliability, and increases transmission capacity.

[0267] Examples 9A-9C

[0268] Examples 9A-9C respectively illustrate schematic diagrams of the energy at the first port of the first DMRS according to an embodiment of this application; as shown in the appendix. Figures 9A-9C As shown.

[0269] In embodiment 9A, the first DMRS includes multiple ports; on the first RE, the energy on different ports of the first DMRS is the same.

[0270] In the appendix Figure 9A In this configuration, both port #1 and port #2 of the first DMRS occupy the first RE. The energy of port #1 on the first RE is the same as that of port #2 on the first RE, meaning that the energy of the first DMRS on the first RE is evenly distributed between port #1 and port #2.

[0271] As one embodiment, the first DMRS includes multiple ports; on the first RE, the energy percentage on different ports of the first DMRS is the same.

[0272] In the above method, the energy percentage of one port of the first DMRS on a RE is equal to the energy of one port of the first DMRS on the RE minus the energy on the RE, and the energy on the RE is equal to the total energy of the first data signal and the first DMRS on the RE.

[0273] or,

[0274] The energy percentage of one port of the first DMRS on a RE is equal to the energy of one port of the first DMRS on the RE minus the energy of the first data signal on the RE, or equal to the energy of the first data signal on the RE minus the energy of one port of the first DMRS on the RE.

[0275] or,

[0276] The energy percentage of a port of the first DMRS on a RE is equal to the energy of the port of the first DMRS on the RE minus the energy of the corresponding layer of the first data signal on the RE, or equal to the energy of the corresponding layer of the first data signal on the RE minus the energy of a port of the first DMRS on the RE.

[0277] In this application, the units for energy and energy value are dBm, and the units for energy percentage and ratio are dB.

[0278] In the above method, the energy of the DMRS on a single RE is evenly distributed across multiple spatially divided DMRS ports. The advantages include consistency with the energy allocation scheme in traditional DMRS designs (i.e., DMRS and data occupy orthogonal REs).

[0279] In embodiment 9B, the first DMRS includes multiple ports; on the first RE, the energy on the first port of the first DMRS depends on the port group to which the first port belongs; the first port is one of the multiple ports.

[0280] In the appendix Figure 9B In the first DMRS, both port group #1 and port group #2 occupy the first RE; if the first port belongs to port group #1, the energy of the first port of the first DMRS on the first RE is e1; if the first port belongs to port group #2, the energy of the first port of the first DMRS on the first RE is e2; e1 and e2 are different.

[0281] As one embodiment, the first DMRS includes multiple ports; on the first RE, the energy percentage of the first port of the first DMRS depends on the port group to which the first port belongs; the first port is one of the multiple ports.

[0282] As one embodiment, the first DMRS includes multiple ports, which are divided into two port groups, each corresponding to a codeword of the first data signal; on the first RE, the energy or energy percentage on the first port of the first DMRS depends on the port group to which the first port belongs; the first port is one of the multiple ports.

[0283] As an example, on the first RE, the energy or energy ratio on the two ports of the first DMRS is different.

[0284] As an example, on the first RE, the energy or energy ratio on the two port groups of the first DMRS is different.

[0285] In the above method, the multiple ports of the first DMRS are divided into two port groups, and the two port groups correspond to two codewords of the first data signal. The two codewords adopt different MCS, and the two ports belonging to the two port groups are allocated different energy on the same RE, which better adapts to the different channel characteristics of the two codewords, improves the channel estimation accuracy, improves the data transmission reliability and increases the transmission capacity.

[0286] In the case of a single codeword, the modulation symbols of a codeword are mapped onto all layers of the first data signal.

[0287] In the case of two codewords, the modulation symbols of one codeword are mapped onto one or more layers of the first data signal, and the modulation symbols of the two codewords are mapped onto different layers of the first data signal, respectively.

[0288] In embodiment 9C, the first DMRS includes a plurality of ports; on the first RE, the energy on the first port of the first DMRS depends on the location of the first port among the plurality of ports; the first port is one of the plurality of ports.

[0289] On the first RE, the energies on the 1st, 2nd, ..., 3rd ports of the first DMRS are energy values ​​e1, e2, ... respectively; the first port is the kth port of the first DMRS, and the energy of the first port of the first DMRS on the first RE is the energy value corresponding to the kth port, i.e., ek. Figure 9C Examples are given under two DMRS ports.

[0290] As one embodiment, the first DMRS includes multiple ports; on the first RE, the energy percentage of the first port of the first DMRS depends on the position of the first port among the multiple ports; the first port is one of the multiple ports.

[0291] As an example, the energies on the two ports of the first DMRS are different on the first RE; if the first port is the first of the two ports, the energy of the first port of the first DMRS on the first RE is e1; if the first port is the second of the two ports, the energy of the first port of the first DMRS on the first RE is e2; e1 and e2 are different.

[0292] As an example, the energy percentages of the two ports of the first DMRS on the first RE are different; if the first port is the first of the two ports, the energy percentage of the first port of the first DMRS on the first RE is a1; if the first port is the second of the two ports, the energy percentage of the first port of the first DMRS on the first RE is a2; a1 and a2 are different.

[0293] In the above method, the energy or energy ratio of multiple ports of the first DMRS on the same RE can be different, which well adapts to the different channel characteristics of different DMRS ports or different layers, improves the channel estimation accuracy, improves the data transmission reliability and increases the transmission capacity.

[0294] The order of the positions of all subcarriers in an RE block from smallest to largest is consistent with the order of frequencies from lowest to highest, or the order of frequencies from highest to lowest.

[0295] The ascending order of the port positions of the first DMRS is consistent with the ascending order of the layer indices of the first data signal.

[0296] The kth port of the first DMRS corresponds to the kth layer of the first data signal and is used to estimate the channel of the kth layer of the first data signal.

[0297] Example 10

[0298] Example 10 illustrates a schematic diagram of energy allocation in a first RE set according to an embodiment of this application; as attached. Figure 10 As shown.

[0299] In Example 10, all REs in the first RE set have the same energy, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

[0300] In the above method, the linear value (in mW) of the energy (in dBm) on a RE in the first RE set is equal to the sum of the linear value of the energy of the first data signal on that RE and the linear value of the first DMRS on that RE.

[0301] Since the total energy is evenly distributed on the RE, the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE within its respective RE block. Therefore, the energy of the first data signal on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE within its respective RE block.

[0302] The advantages of the above methods include: simplified design and low implementation complexity.

[0303] Example 11

[0304] Example 11 illustrates a schematic diagram of energy allocation in a first RE set according to another embodiment of this application; as shown in the appendix. Figure 11 As shown.

[0305] In Example 11, the energy on the plurality of RE blocks is the same, and the energy on any RE block in the plurality of RE blocks is equal to the total energy of the first data signal and the first DMRS on that RE block; the energy on two REs in one of the plurality of RE blocks is different, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that RE.

[0306] As an example, the energies on the plurality of RE blocks are all the same; the energies on the two frequency-domain orthogonal REs in one of the plurality of RE blocks are different.

[0307] As an example, the energy on the plurality of RE blocks is the same; the energy on two frequency domain orthogonal REs in one of the plurality of RE blocks is different; and the energy on all REs of the same subcarrier in any of the plurality of RE blocks is the same.

[0308] As an example, the energies on the plurality of RE blocks are all the same; the energies on the two time-domain orthogonal REs in one of the plurality of RE blocks are different.

[0309] As an example, the energies on the plurality of RE blocks are all the same; the energies on two time-domain orthogonal REs in one of the plurality of RE blocks are different; and the energies on all REs of the same symbol in any of the plurality of RE blocks are the same.

[0310] In the above method, the total energy is evenly distributed among RE blocks, and can be non-uniformly distributed among different REs within a single RE block. The advantages are that it better adapts to the time-varying characteristics or frequency selectivity of the channel, improves channel estimation accuracy, enhances data transmission reliability and increases transmission capacity, simplifies design, and saves signaling indication overhead.

[0311] Example 12

[0312] Example 12 illustrates a schematic diagram of energy allocation in a first RE set according to another embodiment of this application; as attached. Figure 12 As shown.

[0313] In Example 12, the first RE set has the same energy on different symbols, and the energy of the first RE set on one symbol is equal to the total energy of the first data signal and the first DMRS on all REs on that one symbol.

[0314] The above method ensures that the energy remains unchanged in the time domain and has low implementation complexity.

[0315] Examples 13A-13B

[0316] Examples 13A-13B respectively illustrate schematic diagrams of a first ratio set according to an embodiment of this application; as shown in the appendix. Figures 13A-13B As shown.

[0317] In Examples 13A-13B, the first ratio set includes multiple ratios, and the energy percentage of the first DMRS on each of the multiple REs is equal to the multiple ratios, wherein at least two of the multiple ratios are different. (See Appendix...) Figures 13A-13B In this context, the energy percentages of the first DMRS on RE#1 and RE#2 are equal to ratios #1 and #2, respectively.

[0318] As an example, the first DMRS has the same energy percentage on each RE in the same RE block, and the first DMRS has different energy percentages on two REs belonging to two different RE blocks; the energy percentages of the first DMRS on multiple REs are respectively equal to the multiple ratios, at least two of the multiple ratios are different, and the multiple REs belong to the multiple RE blocks respectively.

[0319] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block; the energy percentage of the first DMRS on multiple REs is equal to the multiple ratios, at least two of the multiple ratios are different, and the multiple REs belong to the same RE block.

[0320] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs. The energy of the first DMRS on REs at the same position in two RE blocks is the same. The energy percentage of the first DMRS on multiple REs is equal to the multiple ratios, at least two of the multiple ratios are different, and the multiple REs belong to the same RE block.

[0321] In the above method, the first set of ratios is specified in a standard, configured by RRC signaling, or reported by the first node.

[0322] In the above method, the energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on the RE minus the energy on the RE, and the energy on the RE is equal to the total energy of the first data signal and the first DMRS on the RE.

[0323] or,

[0324] The energy percentage of the first DMRS on a RE is equal to the energy of the first DMRS on that RE minus the energy of the first data signal on that RE;

[0325] or,

[0326] The energy percentage of the first DMRS on a RE is equal to the energy of the first data signal on the RE minus the energy of the first DMRS on the RE.

[0327] In embodiment 13A, the first ratio set depends on the indication of the first information block.

[0328] As one embodiment, the first information block indicates the first ratio set.

[0329] As one embodiment, the first information block indicates the scheduling information of the first data signal, which includes one or more of the following: configuration information of the first DMRS, layer number, TCI (Transmission configuration indicator) status or SRS (Sounding reference signal) resource, MCS (Modulation and coding scheme), occupied RB (Resource block) or subcarrier, occupied symbol, and HARQ process number; the first ratio set depends on some or all of the scheduling information of the first data signal.

[0330] In the above method, different scheduling information corresponds to different ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the scheduling information indicated by the first information block.

[0331] As one embodiment, the first information block indicates the configuration information of the first DMRS; the configuration information of the first DMRS includes the first ratio set or the first ratio set depends on the configuration information of the first DMRS.

[0332] In the above method, the configuration information of the first DMRS includes at least one of the following: the symbol occupied by the first DMRS, the RB or subcarrier occupied by the first DMRS, the port of the first DMRS, and the overlap of the REs occupied by the first DMRS and the first data signal, respectively. The overlap includes one or more of the following: whether there is overlap, partial overlap, or full overlap, and the ratio of overlapping REs in the first RE set.

[0333] In the above method, multiple DMRS configuration information corresponds to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the configuration information of the first DMRS indicated by the first information block.

[0334] As an example, the first information block indicates a first TCI state, the transmit filter (Tx filter) of the first data signal depends on the first TCI state, and the first ratio set depends on the first TCI state.

[0335] In the above method, multiple TCI states correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the configuration information of the first DMRS indicated by the first information block.

[0336] As an example, the first information block indicates a first SRS resource, and the first ratio set depends on the first SRS resource.

[0337] In the above method, multiple SRS resources or multiple SRS resource sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the SRS resource indicated by the first information block or the SRS resource set to which the indicated SRS resource belongs.

[0338] As an example, the first information block indicates the MCS of the first data signal, and the first ratio set depends on the MCS of the first data signal.

[0339] In the above method, multiple MCSs or multiple MCS sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the MCS indicated by the first information block or the MCS set to which the indicated MCS belongs.

[0340] As an example, the first ratio set depends on the first identifier.

[0341] As one embodiment, the first ratio set depends on a first identifier; the first identifier is indicated by the first information block, or by the second information block, or by signaling different from the first information block.

[0342] In the above method, multiple identifiers or multiple identifier sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the identifier indicated by the first information block or the identifier set to which the indicated identifier belongs.

[0343] In the above method, the first identifier is either a non-negative integer or a string.

[0344] As an example, the first identifier is an associated identifier (associated ID).

[0345] As an example, the first identifier is associated with the training data.

[0346] As an example, the first identifier is associated with a function.

[0347] As an example, the first identifier is an identifier associated with the AI ​​model.

[0348] As an example, the first identifier is an identifier associated with reasoning.

[0349] As an example, the first identifier is used to identify or indicate a reasoning, an AI model, or a function.

[0350] As an example, the advantages of the above method include simplifying the design and unifying the understanding between the first node and the second node through the first identifier.

[0351] In embodiment 13B, the first node in this application receives a second information block; the first ratio set depends on the indication of the second information block.

[0352] In the above method, the first information block and the second information block are carried by different signaling.

[0353] As one embodiment, the second information block is carried by RRC signaling.

[0354] As one embodiment, the second information block includes some or all of the fields in an RRC IE.

[0355] As one embodiment, the second information block includes some or all of the fields in the MAC CE.

[0356] As one embodiment, the second information block is carried by physical layer signaling, and the second information block and the second information block are carried by different signaling.

[0357] As one embodiment, the second information block indicates the first ratio set.

[0358] As one embodiment, the second information block indicates a plurality of ratio sets, and the first ratio set is one of the plurality of ratio sets.

[0359] As one embodiment, the second information block indicates a plurality of ratio sets, wherein the first ratio set is which of the plurality of ratio sets depends on the indication of the first information block.

[0360] As one embodiment, the transmission of the second information block is earlier than the transmission of the first information block, or the second information block is the most recent DCI that is earlier than the transmission of the first information block. The second information block indicates the scheduling information of the second data signal. The scheduling information of the second data signal includes one or more of the following: configuration information of the second DMRS, layer number, TCI (Transmission configuration indicator) status or SRS (Sounding reference signal) resource, MCS (Modulation and coding scheme), occupied RB (Resource block) or subcarrier, occupied symbol, and HARQ process number. The first ratio set depends on some or all of the scheduling information of the second data signal.

[0361] In the above method, different scheduling information corresponds to different ratio sets, which are either standardized in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the scheduling information indicated by the second information block.

[0362] As one embodiment, the second information block indicates configuration information of the second DMRS; the configuration information of the second DMRS includes the first ratio set or the first ratio set depends on the configuration information of the second DMRS.

[0363] In the above method, the configuration information of the second DMRS includes at least one of the following: the symbol occupied by the second DMRS, the RB or subcarrier occupied by the second DMRS, the port of the second DMRS, and the overlap of the REs occupied by the second DMRS and the second data signal, respectively. The overlap includes one or more of the following: whether there is overlap, partial overlap, or complete overlap, and the ratio of overlapping REs in the second RE set.

[0364] In the above method, multiple DMRS configuration information corresponds to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the configuration information of the second DMRS indicated by the second information block.

[0365] As one embodiment, the second information block indicates a second TCI state, the transmit filter (Tx filter) of the second data signal depends on the second TCI state, and the first ratio set depends on the second TCI state.

[0366] In the above method, multiple TCI states correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the configuration information of the second DMRS indicated by the second information block.

[0367] As one embodiment, the second information block indicates a second SRS resource, and the first ratio set depends on the second SRS resource.

[0368] In the above method, multiple SRS resources or multiple SRS resource sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the SRS resource indicated by the second information block or the SRS resource set to which the indicated SRS resource belongs.

[0369] As one embodiment, the second information block indicates the MCS of the second data signal, and the second ratio set depends on the MCS of the second data signal.

[0370] In the above method, multiple MCSs or multiple MCS sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the MCS indicated by the second information block or the MCS set to which the indicated MCS belongs.

[0371] As an example, the first ratio set depends on the first identifier.

[0372] As one embodiment, the first ratio set depends on a first identifier; the first identifier is indicated by the second information block, or by the second information block, or by signaling different from the second information block.

[0373] In the above method, multiple identifiers or multiple identifier sets correspond to multiple ratio sets, which are specified in the standard, configured by RRC signaling, or reported by the first node; the first ratio set is the ratio set corresponding to the identifier indicated by the second information block or the identifier set to which the indicated identifier belongs.

[0374] Example 14

[0375] Example 14 illustrates a schematic diagram of the transmission power on a first RE set according to an embodiment of this application; as shown in the appendix. Figure 12 As shown.

[0376] In Example 14, the first power is the total transmit power on the first RE set, and the first power is less than or equal to the minimum of a reference power and a maximum power, wherein the reference power depends on the bandwidth of the first RE set and the path loss measured on the first pathloss RS resource.

[0377] In the above method, the units of the first power, the reference power, and the maximum power are all dBm, and the unit of the path loss is dB; the RE energy allocation in the first RE set in this application conforms to the first power.

[0378] In the above method, the first path loss RS resource is predefined or configurable.

[0379] As an example, whether the energy or power in the first RE set is first allocated among the plurality of RE blocks or first allocated between the first data signal and the first DMRS is predefined or configurable (e.g., indicated by signaling sent by the base station).

[0380] As an example, the reference power is linearly related to the target received power, the first component, and the given path loss; the given path loss is the path loss measured on the first path loss (RS) resource; the first component is 10log 10 (2 μ M), wherein the 2 μIt is equal to the subcarrier spacing (in kHz) of the first RE set divided by 15 kHz; M depends on the bandwidth of the first RE set, for example, M is the total number of RBs (resource blocks) included in the first RE set.

[0381] As an example, the reference power P1 is: P1 = p0 + p1 + b1p PH +p2; where p0, p1, p PH b1 and p2 are the target received power, the first component, the given path loss, the linear coefficient between the reference power and the given path loss, and the second component, respectively; the given path loss is the path loss measured on the first path loss (RS resource); the first component is 10log 10 (2 μ M), wherein the 2 μ It is equal to the subcarrier spacing (in kHz) of the first RE set divided by 15 kHz; M depends on the bandwidth of the first RE set, for example, M is the total number of RBs (resource blocks) included in the first RE set.

[0382] As an example, the reference power P1 is: P1 = p0 + p1 + b1p PH +p2+p3; where p0, p1, p PH b1, p5, and p3 are the target received power, the first component, the given path loss, the linear coefficient between the reference power and the given path loss, the second component, and the third component, respectively; wherein, the given path loss is the path loss measured on the first path loss (RS) resource.

[0383] The first component is 10log 10 (2 μ M), wherein the 2 μ The value is equal to the subcarrier spacing (in kHz) of the first RE set divided by 15 kHz. M depends on the bandwidth of the first RE set. For example, M is the total number of RBs (resource blocks) included in the first RE set.

[0384] The third component is either the PUSCH power control adjustment or the sum of a set of TPC (Transmit Power Control) command values.

[0385] In the above method, the linearity coefficient between the reference power and the given path loss is a positive real number, or it is configured by higher-level parameters, or it is predefined.

[0386] As an example, the target received power is P O_PUSCH,b,f,c (j), the first component is The second component is Δ TF,b,f,c (i) The given path loss is PL b,f,c (q d The linearity coefficient between the reference power and the given road loss is α. b,f,c (j), the third component is f b,f,c (i, l).

[0387] As an example, P O_PUSCH,b,f,c (j), Δ TF,b,f,c (i), PL b,f,c (q d ), α n,f,c (j), f b,f,c For the specific definition of (i, l), please refer to section 7.1.1 of 3GPP TS38.213.

[0388] Example 15

[0389] Example 15 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 15 As shown. In the appendix Figure 15 In the first node, the processing device 1500 includes a first receiver 1501 and a first transmitter 1502.

[0390] As one example, the first node is a user equipment.

[0391] As an example, the first node is a relay node device.

[0392] As an example, the first receiver 1501 includes at least one of the following in embodiment 4: antenna 452, receiver 454, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459, memory 460, and data source 467.

[0393] As one embodiment, the first transmitter 1502 includes at least one of the following in embodiment 4: antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller / processor 459, memory 460, and data source 467.

[0394] The first receiver 1501 receives a first information block, the first information block indicating a first RE set;

[0395] The first transmitter 1502 transmits a first data signal and a first DMRS in the first RE set;

[0396] In embodiment 15, the first data signal and the first DMRS occupy partially or completely overlapping REs in the first RE set; the first RE set includes multiple RE blocks orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, and the first RE is an RE in the first RE set.

[0397] As one embodiment, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs; the energy of the first DMRS is the same on each RE in the same RE block; the energy of the first DMRS is different on two REs belonging to two different RE blocks.

[0398] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on the two REs in a RE block is different.

[0399] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0400] As one embodiment, the first DMRS includes a plurality of ports; on the first RE, the energy on the first port of the first DMRS depends on either the location of the first port among the plurality of ports or the port group to which the first port belongs; the first port is one of the plurality of ports.

[0401] As an example, all REs in the first RE set have the same energy, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

[0402] As an example, the energy on the plurality of RE blocks is the same, and the energy on any RE block in the plurality of RE blocks is equal to the total energy of the first data signal and the first DMRS on that RE block; the energy on two REs in one of the plurality of RE blocks is different, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that RE.

[0403] As an example, the first RE set has the same energy on different symbols, and the energy of the first RE set on one symbol is equal to the total energy of the first data signal and the first DMRS on all REs on that one symbol.

[0404] As an example, the first ratio set includes multiple ratios, wherein the energy percentage of the first DMRS on multiple REs is equal to the multiple ratios, and at least two of the multiple ratios are different.

[0405] In the above method, the first set of ratios is specified in a standard, configured by RRC signaling, or reported by the first node.

[0406] As an example, the first ratio set depends on the indication of the first information block.

[0407] As one embodiment, the first receiver 1501 receives a second information block; wherein the first ratio set depends on the indication of the second information block.

[0408] Example 16

[0409] Example 16 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 16 As shown. In the appendix Figure 16 In the second node, the processing device 1600 includes a second transmitter 1601 and a second receiver 1602.

[0410] In one embodiment, the second node is a base station device.

[0411] In one embodiment, the second node is a user equipment.

[0412] As one embodiment, the second node is a relay node device.

[0413] As one embodiment, the second transmitter 1601 includes at least one of the following in embodiment 4: antenna 420, transmitter 418, transmission processor 416, multi-antenna transmission processor 471, controller / processor 475, and memory 476.

[0414] As one embodiment, the second receiver 1602 includes at least one of the following in embodiment 4: antenna 420, receiver 418, receiver processor 470, multi-antenna receiver processor 472, controller / processor 475, and memory 476.

[0415] The second transmitter 1601 transmits a first information block, the first information block indicating a first RE set;

[0416] The second receiver 1602 receives the first data signal and the first DMRS in the first RE set;

[0417] In embodiment 16, the first data signal and the first DMRS occupy partially or completely overlapping REs in the first RE set; the first RE set includes multiple RE blocks orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in its respective RE block, and the first RE is an RE in the first RE set.

[0418] As one embodiment, the energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs; the energy of the first DMRS is the same on each RE in the same RE block; the energy of the first DMRS is different on two REs belonging to two different RE blocks.

[0419] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on the two REs in a RE block is different.

[0420] As an example, the energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

[0421] As one embodiment, the first DMRS includes a plurality of ports; on the first RE, the energy on the first port of the first DMRS depends on either the location of the first port among the plurality of ports or the port group to which the first port belongs; the first port is one of the plurality of ports.

[0422] As an example, all REs in the first RE set have the same energy, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

[0423] As an example, the energy on the plurality of RE blocks is the same, and the energy on any RE block in the plurality of RE blocks is equal to the total energy of the first data signal and the first DMRS on that RE block; the energy on two REs in one of the plurality of RE blocks is different, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that RE.

[0424] As an example, the first RE set has the same energy on different symbols, and the energy of the first RE set on one symbol is equal to the total energy of the first data signal and the first DMRS on all REs on that one symbol.

[0425] As an example, the first ratio set includes multiple ratios, wherein the energy percentage of the first DMRS on multiple REs is equal to the multiple ratios, and at least two of the multiple ratios are different.

[0426] In the above method, the first set of ratios is specified in a standard, configured by RRC signaling, or reported by the first node.

[0427] As an example, the first ratio set depends on the indication of the first information block.

[0428] As one embodiment, the second transmitter 1601 transmits a second information block; wherein the first ratio set depends on the indication of the second information block.

[0429] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication equipment, vehicles, RSUs, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base stations or system equipment in this application include, but are not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, TRPs (Transmitter Receiver Points), GNSS, relay satellites, satellite base stations, airborne base stations, RSUs (Road Side Units), drones, and testing equipment, such as transceivers or signaling testers that simulate some functions of a base station, and other wireless communication equipment.

[0430] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should be considered descriptive rather than restrictive in any way. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node used for wireless communication, characterized in that, include: A first receiver receives a first information block, the first information block indicating a first RE set; The first transmitter transmits a first data signal and a first DMRS in the first RE set; Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

2. The first node according to claim 1, characterized in that, The energy of the first DMRS on the first RE depends on the RE block to which the first RE belongs. The energy of the first DMRS is the same on each RE in the same RE block. The energy of the first DMRS is different on two REs that belong to two different RE blocks.

3. The first node according to claim 1, characterized in that, The energy of the first DMRS on the first RE depends on the position of the first RE in the RE block to which it belongs, and the energy of the first DMRS on the two REs in a RE block is different.

4. The first node according to claim 1 or 3, characterized in that, The energy of the first DMRS on the first RE depends on the position of the first RE in its respective RE block, and the energy of the first DMRS on REs at the same position in two RE blocks is the same.

5. The first node according to any one of claims 1 to 4, characterized in that, The first DMRS includes multiple ports; on the first RE, the energy on the first port of the first DMRS depends on either the location of the first port among the multiple ports or the port group to which the first port belongs; The first port is one of the plurality of ports.

6. The first node according to any one of claims 1 to 5, characterized in that, All REs in the first RE set have the same energy, and the energy on one RE in the first RE set is equal to the total energy of the first data signal and the first DMRS on that one RE.

7. The first node according to any one of claims 1 to 6, characterized in that, The first ratio set includes multiple ratios, wherein the energy percentage of the first DMRS on multiple REs is equal to each of the multiple ratios, and at least two of the multiple ratios are different; wherein... The first ratio set depends on the indication of the first information block; or, This includes: the first receiver receiving a second information block; and the first ratio set depending on the indication of the second information block.

8. A second node used for wireless communication, characterized in that, include: The second transmitter sends a first information block, which indicates the first RE set; The second receiver receives the first data signal and the first DMRS from the first RE set; Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

9. A method used in a first node of wireless communication, characterized in that, include: Receive a first information block, the first information block indicating a first RE set; Send a first data signal and a first DMRS in the first RE set; Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

10. A method used in a second node of wireless communication, characterized in that, include: Send a first information block, which indicates a first RE set; Receive the first data signal and the first DMRS in the first RE set; Wherein, the first data signal and the first DMRS occupy part or all of the REs in the first RE set respectively; the first RE set includes multiple RE blocks that are orthogonal in the frequency domain; the energy of the first DMRS on the first RE depends on either the RE block to which the first RE belongs or the position of the first RE in the RE block to which it belongs, and the first RE is an RE in the first RE set.

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