A method, device, terminal and network equipment for controlling power of orbital angular momentum

Abstract

Embodiments of the present invention provide a method, apparatus, terminal, and network device for controlling orbital angular momentum power. The terminal-side method includes: receiving multiple parameters sent by a network-side device; obtaining path loss based on the parameters; and performing orbital angular momentum power control based on the path loss. This solution can implement uplink and downlink power control in an OAM wireless transmission system.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device, terminal and network equipment for controlling power of orbital angular momentum. Background Art

[0002] With the rapid growth of mobile data demand, the shortage of spectrum resources has become a bottleneck restricting the development of the wireless communication industry. To date, wireless communication is still based on plane electromagnetic waves (PE), which detect electric field strength to achieve signal reception and demodulation.

[0003] like Figure 1 As shown in FIG, the multiplexing dimensions mainly include time domain (TDM), frequency domain (FDM), code domain (CDM), space domain (SDM) and polarization domain (PDM), which makes it difficult to further improve the system capacity.

[0004] Orbital Angular Momentum (OAM), an intrinsically independent physical quantity distinct from electric field strength, offers a new dimension to wireless transmission. OAM multiplexing enables the transmission of multiple coaxial data streams without relying on traditional resources such as time and frequency, potentially increasing the system capacity and spectral efficiency of wireless communication links. This is expected to be applied in 6G wireless communication networks.

[0005] The physical implementation of UCA-based generation methods requires that the transmit and receive antenna arrays be aligned and parallel, limiting their application scenarios. They are generally applied to fronthaul / backhaul links where the transmitter and receiver are fixed, such as the link between a host base station and a relay node. For relay nodes that only support half-duplex, they must simultaneously receive uplink data from mobile terminals and downlink data from the host base station. Whether using FDM or SDM, to decode the data, the power difference between the backhaul link and the access link must be within a certain range.

[0006] Since the uplink access link has power control, a power control method must also be added to the downlink backhaul link. Similarly, in OAM transmission systems, different inter-modal path loss calculation methods should be selected based on the relative size of the transmitter and receiver radii.

[0007] Therefore, in OAM wireless transmission systems, how to perform effective power control is an urgent problem to be solved. Summary of the Invention

[0008] The present invention provides a method, device, terminal and network equipment for controlling power of orbital angular momentum, which can realize uplink and downlink power control of an OAM wireless transmission system.

[0009] To solve the above technical problems, the embodiments of the present invention provide the following solutions:

[0010] A power control method for orbital angular momentum, applied to a terminal, the method comprising:

[0011] Receiving a plurality of parameters sent by a network-side device;

[0012] Obtaining path loss according to the parameters;

[0013] Performing power control of orbital angular momentum according to the path loss.

[0014] Optionally, the parameters include at least one of the following: a set of transmission modes; a reference signal RS; the transmission radius of the network-side device.

[0015] Optionally, the set of transmission modes includes at least one reference mode;

[0016] Wherein, the reference mode is a fixed value; or

[0017] The reference mode includes multiple different mode values in the set of transmission modes; or

[0018] The reference mode includes multiple different mode subsets in the set of transmission modes.

[0019] Optionally, when the reference mode is a fixed value, obtaining path loss according to the parameters includes:

[0020] Obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss;

[0021] Obtaining the total path loss according to the sum of the path losses of each mode.

[0022] Optionally, obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss includes:

[0023] If r = R, for different modes l, estimating the path loss value of other modes PL1(l) = β1(l)PL0(l);

[0024] If r < R, for different modes l, estimating the path loss value of other modes PL1(l) = β2(l)PL0(l);

[0025] If r > R, for different modes l, estimating the path loss value of other modes PL1(l) = β3(l)PL0(l);

[0026] Where r is the transmission radius of the network device, R is the receiving radius of the terminal, PL1(l) is the path loss of other modes, PL0(l) is the reference path loss, β1(l), β2(l), and β3(l) are coefficients, β2(l) < β1(l), β3(l) > β1(l).

[0027] Optionally, for a mode where R(l) is less than or equal to R, β1(l) or β2(l) or β3(l) = 1;

[0028] For the mode where R(l) is greater than R, β1(l) or β2(l) or β3(l))>1, and the larger l is, the larger β1(l) or β2(l) or β3(l) is;

[0029] Where R(l) is the receiving radius of other modes of the terminal, and R is the receiving radius of the current mode.

[0030] Optionally, when the reference mode includes multiple different mode values ​​in the sending mode set, obtaining the path loss according to the parameter includes:

[0031] Path losses of different modes are obtained for reference signals of different modes;

[0032] The total path loss is obtained according to the path losses of the different modes.

[0033] Optionally, when the reference mode includes multiple different mode subsets in the sending mode set, obtaining the path loss according to the parameter includes:

[0034] Based on the reference signals of different modal subsets, the path losses of different modal subsets are obtained;

[0035] The total path loss is obtained based on the path losses of different modal subsets.

[0036] Optionally, orbital angular momentum power control is performed based on path loss, including:

[0037] Power control of orbital angular momentum is performed according to the total path loss.

[0038] Optionally, perform power control of orbital angular momentum, including:

[0039] Open-loop uplink power control; or,

[0040] Closed-loop uplink power control.

[0041] Optional, open-loop uplink power control, including:

[0042] Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is a reference power, the power of each mode is P0 / N+αPL(l), and α is a preset value.

[0043] Optional, closed-loop uplink power control, including:

[0044] receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained based on the difference between the actual receiving power of the transmitting end and the power threshold;

[0045] Uplink power control is performed according to the uplink power control signaling.

[0046] Optionally, performing uplink power control according to the uplink power control signaling includes:

[0047] If δ is an absolute value, the uplink transmit power P = P0 + αPL + δ + δ(MCS);

[0048] If δ is a cumulative value, it is added to the last closed-loop transmit power, and the uplink transmit power P = P0 + αPL + δ + δ(last) + δ(MCS);

[0049] Where P0 is the reference power, δ(MCS) is the power adjustment corresponding to the current modulation and demodulation strategy, and δ(last) is the δ of the last closed-loop power control.

[0050] An embodiment of the present invention further provides a method for controlling power of orbital angular momentum, which is applied to a network device. The method includes:

[0051] Send a modality set and multiple parameters to the terminal configuration;

[0052] receiving a path loss fed back by the terminal based on the parameters;

[0053] Power control is performed according to the path loss.

[0054] Optionally, the parameter includes at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network side device.

[0055] Optionally, the sending modality set includes at least one reference modality;

[0056] Where the reference mode is a fixed value; or

[0057] The reference modality includes a plurality of different modality values ​​in the transmission modality set; or

[0058] The reference modality includes a plurality of different modality subsets in the transmission modality set.

[0059] Optionally, perform power control, including:

[0060] Open-loop downlink power control; or,

[0061] Closed-loop downlink power control.

[0062] Optional, open-loop downlink power control, including:

[0063] Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or

[0064] Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is the first preset value, γ / γPL is obtained according to the receiving power of the access link, and γ is the second preset value.

[0065] Optional, closed-loop downlink power control, including:

[0066] The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold;

[0067] Perform downlink power control according to the downlink power control request.

[0068] Optionally, performing downlink power control according to the downlink power control request includes:

[0069] If δ is an absolute value, P=P0+αPL+δ+δ(MCS) or P0+αPL+γPL+δ+δ(MCS) or P0+αPL+γ+δ+δ(MCS);

[0070] If δ is a cumulative value, it is added to the last closed-loop transmit power: P = P0 + αPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γ + δ + δ(last) + δ(MCS);

[0071] Wherein, P0 is the reference power, δ(MCS) is the power adjustment amount corresponding to the current modulation and demodulation strategy, δ(last) is the power adjustment amount of the last closed-loop power control, and α is the first preset value.

[0072] An embodiment of the present invention further provides a power control device for orbital angular momentum, applied to a terminal, the device comprising:

[0073] A transceiver module, used to receive multiple parameters sent by a network-side device;

[0074] The processing module is configured to obtain a path loss according to the parameters; and perform power control of the orbital angular momentum according to the path loss.

[0075] An embodiment of the present invention further provides a terminal, including:

[0076] A transceiver, configured to receive multiple parameters sent by a network-side device;

[0077] The processor is configured to obtain a path loss according to the parameters; and perform power control of the orbital angular momentum according to the path loss.

[0078] An embodiment of the present invention further provides a power control device for orbital angular momentum, applied to a network device, the device comprising:

[0079] The transceiver module is configured to send a mode set and multiple parameters to the terminal configuration; and receive the path loss feedback from the terminal based on the parameters;

[0080] A processing module is configured to perform power control according to the path loss.

[0081] An embodiment of the present invention further provides a network device, including:

[0082] A transceiver configured to send a mode set and multiple parameters to a terminal configuration; and receive a path loss feedback from the terminal based on the parameters;

[0083] A processor is configured to perform power control according to the path loss.

[0084] An embodiment of the present invention further provides a communication device, comprising: a processor and a memory storing a computer program, wherein the computer program executes the method described above when executed by the processor.

[0085] An embodiment of the present invention further provides a computer-readable storage medium comprising instructions, which, when executed on a computer, enable the computer to execute the method described above.

[0086] The above solution of the present invention includes at least the following beneficial effects:

[0087] The above-mentioned solution of the present invention receives multiple parameters sent by network-side equipment; obtains path loss based on these parameters; and performs orbital angular momentum power control based on the path loss. This enables uplink and downlink power control of OAM wireless transmission systems. In downlink power control, relay nodes are guaranteed to receive data from both the downlink backhaul link and the uplink access link simultaneously. Compared to NR uplink power control, this avoids performing individual power control on each beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 is the multiplexing dimension of electromagnetic waves;

[0089] Figure 2 Schematic diagram of electromagnetic wave OAM;

[0090] Figure 3 Schematic diagram of the generation of OAM radio frequency electromagnetic waves;

[0091] Figure 4 Schematic diagram of an OAM radio frequency electromagnetic wave receiving method;

[0092] Figure 5 1 is a flow chart of a method for controlling power of orbital angular momentum according to an embodiment of the present invention;

[0093] Figure 6 Schematic diagram of a module of a power control device for orbital angular momentum according to an embodiment of the present invention. DETAILED DESCRIPTION

[0094] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0095] like Figure 2 As shown in the figure, a schematic diagram of electromagnetic wave OAM is given, adding a phase rotation factor e to the normal electromagnetic wave il θ , at this time the phase wavefront will no longer be a planar structure, but will rotate around the beam propagation direction.

[0096] Electromagnetic waves with OAM are also called "vortex electromagnetic waves," where the OAM mode is l = 0, which is a plane wave, i.e., the traditional electromagnetic wave radiation mode. For the case where l ≠ 0, the phase distribution of the electromagnetic wave spirals along the propagation direction. Electromagnetic vortex waves with different eigenvalues ​​l are orthogonal to each other, and OAM vortex waves with different eigenvalues ​​can be transmitted in parallel within the same bandwidth, providing a new dimension for wireless transmission. Another important feature of vortex electromagnetic waves is that the overall beam is divergent, with a depression at the center of the beam, zero central energy, and the entire beam presenting a hollow inverted cone shape. As the mode value increases and the distance increases, the beam becomes increasingly divergent.

[0097] like Figure 3 As shown, OAM radio frequency electromagnetic waves can be generated by ring antenna arrays, spiral phase plates, parabolic antennas and special electromagnetic structures.

[0098] Uniform Loop Antenna Array (UCA): Antenna elements are evenly spaced around a circular ring. The feed phase of each element is delayed by 2πl / N (N is the number of antenna elements, and l is the number of OAM modes). This results in a phase rotation of 2πl after one rotation around the antenna array, creating an equivalent spiral phase pattern along the propagation direction. Due to its simple OAM wave generation principle, this method of generating OAM waves using a ring antenna array has been widely used in simulations and experimental experiments.

[0099] Spiral phase plate: After the electromagnetic wave passes through the spiral phase plate (or is reflected by the spiral phase surface), the phase is delayed successively along the propagation direction. The electromagnetic waves generated are equivalent to a spiral phase surface after spatial superposition.

[0100] Spiral parabolic antenna: A hole is opened on one side of an ordinary parabolic antenna, and the two sides of the hole are staggered to twist it into a spiral shape. This physically simulates the rotation of the beam phase, so that different points of the electromagnetic beam have different phase wave fronts relative to other points, thereby twisting ordinary electromagnetic waves into vortex electromagnetic waves.

[0101] In addition to antenna arrays, spiral phase plates, and parabolic antennas, electromagnetic metamaterials and resonant cavities are also commonly used to generate OAM electromagnetic waves. Electromagnetic metamaterials generate OAM electromagnetic waves by constructing a special metal structure on the electromagnetic wave dielectric material, which delays the phase of the wavefront after passing through or reflecting from the structure, thereby generating OAM electromagnetic waves through spatial superposition.

[0102] like Figure 4 As shown in FIG, OAM radio frequency electromagnetic wave receiving methods include three methods: full-space coaxial reception, partial reception, and single-point reception.

[0103] Full-space coaxial reception: The receiving end needs to be coaxially aligned with the transmitting end. A receiving antenna with an OAM mode opposite to that of the transmitting end is used to receive the entire circular beam energy from space. The transmitted OAM electromagnetic wave is phase-compensated by the receiving antenna and converted into a conventional planar electromagnetic wave. Due to the divergence of the OAM electromagnetic wave beam, the required antenna size increases linearly with the increase of transmission distance. The full-space reception method is only suitable for short-distance point-to-point reception.

[0104] Partial reception: The receiver must be coaxially aligned with the transmitter. An arc-shaped antenna array is evenly distributed across a portion of the circular beam to receive the signal. Fourier transforms are performed on the received signal to detect phase differences and thus detect and separate different OAM modes. The number of OAM modes that can be separated using this method is limited by the number and size of the receiving antennas. Furthermore, the size of the antenna array arc required to detect the same number of OAM modes increases with transmission distance.

[0105] The single-point receiving method detects OAM modes by measuring the amplitude components of the electric and magnetic fields along three coordinate axes. However, because this method is a far-field approximation, it can only achieve a good approximation when the divergence angle of the OAM electromagnetic wave beam is very small and the polarization direction of the receiving point is exactly the same as that of the OAM wave. Its detection performance is significantly affected by noise.

[0106] Power control is a fundamental function in wireless communication systems, used to compensate for the effects of radio channel fading, ensuring that signals reach the receiver at a suitable power level. When channel conditions are favorable, the transmitter can reduce transmit power; when channel conditions are poor, the transmitter can increase transmit power to ensure reception performance and maintain the signal-to-noise ratio (SNR) at the receiver within a relatively constant range. By implementing a suitable power control scheme, transmitter power consumption can be reduced, which is crucial for controlling terminal power consumption. It can also control inter-cell interference, improving transmission performance and system capacity. In 5G systems, only uplink power control is implemented, and uplink power control is performed for each beam, including both open-loop and closed-loop power control. The path loss component is derived from the downlink path loss estimated by the terminal. However, in wireless communication systems based on Optical Array (OAM), due to the divergent nature of OAM beams, different inter-modal path loss calculation methods should be used based on the relative size of the transmitter and receiver radii when the transmitter and receiver radii are different.

[0107] like Figure 5 As shown, an embodiment of the present invention provides a method for controlling power of orbital angular momentum, which is applied to a terminal. The method includes:

[0108] Step 51: receiving multiple parameters sent by the network side device;

[0109] Step 52: Obtain path loss according to the parameters;

[0110] Step 53: Perform power control of the orbital angular momentum according to the path loss.

[0111] This embodiment of the present invention receives multiple parameters sent by network-side equipment, obtains path loss based on these parameters, and performs orbital angular momentum power control based on the path loss. This enables uplink and downlink power control for OAM wireless transmission systems. In downlink power control, relay nodes are guaranteed to receive data from both the downlink backhaul link and the uplink access link simultaneously. Compared to NR uplink power control, this avoids performing individual power control on each beam.

[0112] In an optional embodiment of the present invention, the parameter includes at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network-side device.

[0113] The sending modality set includes at least one reference modality;

[0114] In the first optional implementation manner, the reference mode is a fixed value; or,

[0115] In the second optional implementation manner, the reference mode includes multiple different mode values in the set of transmission modes; or,

[0116] In the third optional implementation manner, the reference mode includes multiple different mode subsets in the set of transmission modes.

[0117] Based on the above first optional implementation manner, when when the reference mode is a fixed value, the above step 52 may include:

[0118] Step 521, obtain the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss;

[0119] Step 522, obtain the total path loss according to the sum of the path losses of each mode.

[0120] Here, step 521 may include:

[0121] If r = R, for different modes l, estimate the path loss value PL1(l) of other modes = β1(l)PL0(l);

[0122] If r < R, for different modes l, estimate the path loss value PL1(l) of other modes = β2(l)PL0(l); <​​​​​​​​​​​​Based on the second optional implementation manner described above, when the reference mode includes multiple different mode values in the set of transmission modes, step 52 may include:

[0128] Step 523: Obtain path losses of different modes for reference signals RS of different modes;

[0129] Step 524: Obtain the total path loss according to the path losses of different modes.

[0130] Based on the third optional implementation manner described above, when the reference mode includes multiple different mode subsets in the set of transmission modes, step 52 may include:

[0131] Step 525: Obtain path losses of different mode subsets for reference signals of different mode subsets;

[0132] Step 526: Obtain the total path loss according to the path losses of different mode subsets.

[0133] In the above embodiments of the present invention, the power control method based on orbital angular momentum includes: the high-layer signaling configures a set of transmission modes and sends it to the communication peer; sends RS and transmission radius r to the communication peer, and the RS is carried on the OAM wave of the reference mode: wherein, the reference mode is a fixed value, such as l = 1; the reference mode is different mode values in the mode set, and polling is performed for transmission; the reference mode is different mode subsets in the mode set, and polling is performed for transmission;

[0134] The communication peer calculates the path loss PL: (3-1) Receives the transmission radius r, based on the reference path loss PL(l), according to the size relationship between the transmission radius r and the reception radius R, selects different matching parameters to obtain the path losses PL(l) of other modes; when r = R, the transceiver is completely symmetric, then for different modes l, the estimated path loss value PL(l) = β(l)PL(l), where for modes with R(l) less than or equal to R, it means that the communication peer completely receives, and β(l) = 1; for modes with R(l) greater than R, β(l)>1, and the larger l is, the larger β(l) is;

[0135] When r < R, that is, the reception radius of the communication peer is increased, and it will be easier to completely receive the beam, so the value of β(l) is lower than when the transmission radius is equal to the reception radius;

[0136] When r > R, that is, the radius of the communication peer is decreased, and it will be more difficult to completely receive the beam, so the value of β(l) is higher than when the transmission radius is equal to the reception radius;

[0137] The β(l) can be based on the pre-training model (i.e., each mode polling sends (2-2), and the value obtained is valid for a long time after training once), based on implementation (i.e., the functions of the base station when the station is built), or determined according to the relationship between different modes (such as the power leakage relationship caused by the fixed relationship between the divergence angles of different modes).

[0138] (3-2) Different path losses PL(l) are obtained for RSs of different modes;

[0139] (3-3) Different path losses PL(Ω) are obtained for RSs of different modal subsets;

[0140] (4) The communication peer calculates the total path loss PL for each set of transmitted modes Ω. For cases (3-1) and (3-2), since the modes are orthogonal to each other, the total path loss is equal to the sum of the path losses of all the modes to be transmitted. For case (3-3), the total path loss is equal to the path loss PL(Ω) obtained in step (3-3).

[0141] In an optional embodiment of the present invention, step 53 may include:

[0142] Step 531: Perform power control of orbital angular momentum according to the total path loss.

[0143] Optionally, perform power control of orbital angular momentum, including:

[0144] Open-loop uplink power control; or,

[0145] Closed-loop uplink power control.

[0146] The open-loop uplink power control includes:

[0147] Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is a reference power, the power of each mode is P0 / N+αPL(l), and α is a preset value.

[0148] The closed-loop uplink power control includes:

[0149] receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained based on the difference between the actual receiving power of the transmitting end and the power threshold;

[0150] Uplink power control is performed according to the uplink power control signaling.

[0151] The uplink power control is performed according to the uplink power control signaling, including:

[0152] If δ is an absolute value, the uplink transmit power P = P0 + αPL + δ + δ(MCS);

[0153] If δ is a cumulative value, it is added to the last closed-loop transmit power, and the uplink transmit power P = P0 + αPL + δ + δ(last) + δ(MCS);

[0154] Where P0 is the reference power, δ(MCS) is the power adjustment corresponding to the current modulation and demodulation strategy, and δ(last) is the δ of the last closed-loop power control.

[0155] In the above embodiment of the present invention, the uplink power control scheme is as follows: open-loop power control: assuming there are N transmission modes, the communication peer transmits different modes with a total power equal to P0+αPL, where P0 is the reference power; the power of each mode is P0 / N+PL(l);

[0156] The power of each mode is determined using a water filling algorithm that takes into account both the total power of the transmitter and the received power. It should be noted that the total power of the transmitter (network device) remains unchanged, and the received power of the receiver (terminal) remains unchanged.

[0157] In the uplink power control scheme, considering that the parameters of the open-loop configuration are not accurate enough, a closed-loop power control scheme is required. The communication peer receives the uplink power control signaling, which is obtained based on the difference between the actual received power of the transmitting end and the power threshold.

[0158] In the uplink power control scheme, the transmit power is adjusted according to different MCS modes and power control requests:

[0159] If δ is an absolute value, it is superimposed on the above open-loop power control, P = P0 + αPL + δ + δ (MCS);

[0160] If δ is a cumulative value, it is superimposed on the basis of the above open-loop power control and the last closed-loop transmission power, P=P0+αPL+δ+δ(last)+δ(MCS).

[0161] The above-mentioned embodiments of the present invention can realize the uplink and downlink power control of the OAM wireless transmission system. In the downlink power control, it is ensured that the relay node receives data of the downlink backhaul link and the uplink access link at the same time, and compared with the NR uplink power control, it can avoid separate power control of each beam.

[0162] An embodiment of the present invention further provides a method for controlling power of orbital angular momentum, which is applied to a network device. The method includes:

[0163] Send a modality set and multiple parameters to the terminal configuration;

[0164] receiving a path loss fed back by the terminal based on the parameters;

[0165] Power control is performed according to the path loss.

[0166] Optionally, the parameter includes at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network side device.

[0167] Optionally, the sending modality set includes at least one reference modality;

[0168] Where the reference mode is a fixed value; or

[0169] The reference modality includes a plurality of different modality values ​​in the sending modality set; or,

[0170] The reference modality includes a plurality of different modality subsets in the transmission modality set.

[0171] Optionally, perform power control, including:

[0172] Open-loop downlink power control; or,

[0173] Closed-loop downlink power control.

[0174] Optional, open-loop downlink power control, including:

[0175] Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or

[0176] Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is the first preset value, γ / γPL is obtained according to the receiving power of the access link, and γ is the second preset value.

[0177] Optional, closed-loop downlink power control, including:

[0178] The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold;

[0179] Perform downlink power control according to the downlink power control request.

[0180] Optionally, performing downlink power control according to the downlink power control request includes:

[0181] If δ is an absolute value, P=P0+αPL+δ+δ(MCS) or P0+αPL+γPL+δ+δ(MCS) or P0+αPL+γ+δ+δ(MCS);

[0182] If δ is a cumulative value, it is added to the last closed-loop transmit power: P = P0 + αPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γ + δ + δ(last) + δ(MCS);

[0183] Wherein, P0 is the reference power, δ(MCS) is the power adjustment amount corresponding to the current modulation and demodulation strategy, δ(last) is the power adjustment amount of the last closed-loop power control, and α is the first preset value.

[0184] In this embodiment of the present invention, the downlink power control scheme is as follows: after the communication peer feeds back the total path loss of different mode sets to the transmitting end, the transmitting end performs the following power control scheme: (6-1) Open-loop power control: Assuming that there are N transmitting modes, the transmitting end transmits different modes according to a total power equal to P0+αPL, where P0 is a reference power and is obtained based on the received power of the access link; (6-2) Open-loop power control: Assuming that there are N transmitting modes, the transmitting end transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is a reference power and γ / γPL is obtained based on the received power of the access link; the power of each mode is P0 / N+PL(l) or (P0+γPL) / N+PL(l) or (P0+γ) / N+PL(l); the power of each mode is determined according to a water injection algorithm, and the water injection algorithm must consider both the unchanged total power of the transmitting end and the unchanged received power.

[0185] (7) Considering that the parameters of the open-loop configuration are not accurate enough, a closed-loop power control solution is required. The transmitting end receives a downlink power control request sent by the relay node. The downlink power control request δ is obtained based on the difference between the actual received power of the relay node and the power threshold.

[0186] (8) Adjust the transmit power according to different MCS modes and power control requests:

[0187] If δ is an absolute value, it is superimposed on the power of the open-loop power control step, P = P0 + αPL + δ + δ (MCS) or P0 + αPL + γPL + δ + δ (MCS) or P0 + αPL + γ + δ + δ (MCS)

[0188] If δ is a cumulative value, it is superimposed on the power basis of the open-loop power control step and the power basis of the last closed-loop transmission, P = P0 + αPL + δ + δ (last) + δ (MCS) or P = P0 + αPL + γPL + δ + δ (last) + δ (MCS) or P = P0 + αPL + γ + δ + δ (last) + δ (MCS).

[0189] The above embodiments of the present invention can implement uplink and downlink power control of the OAM wireless transmission system. In downlink power control, it is ensured that the relay node receives data from both the downlink backhaul link and the uplink access link simultaneously. Moreover, compared with NR uplink power control, it is possible to avoid performing power control on each beam individually.

[0190] As Figure 6 shown, an embodiment of the present invention further provides a power control device 60 for orbital angular momentum, which is applied to a terminal. The device 60 includes:

[0191] A transceiver module 61, configured to receive multiple parameters sent by a network-side device;

[0192] A processing module 62, configured to obtain path loss according to the parameters; and perform power control of orbital angular momentum according to the path loss.

[0193] Optionally, the parameters include at least one of the following: a set of transmission modes; a reference signal RS; the transmission radius of the network-side device.

[0194] Optionally, the set of transmission modes includes at least one reference mode;

[0195] wherein, the reference mode is a fixed value; or

[0196] the reference mode includes multiple different mode values in the set of transmission modes; or

[0197] the reference mode includes multiple different mode subsets in the set of transmission modes.

[0198] Optionally, when the reference mode is a fixed value, obtaining path loss according to the parameters includes:

[0199] Obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss;

[0200] Obtaining the total path loss according to the sum of the path losses of each mode.

[0201] Optionally, obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss includes:

[0202] If r = R, for different modes l, estimating the path loss value PL1(l) of other modes = β1(l)PL0(l);

[0203] If r < R, for different modes l, estimating the path loss value PL1(l) of other modes = β2(l)PL0(l);

[0204] If r>R, for different modes l, estimate the path loss values ​​of other modes PL1(l)=β3(l)PL0(l);

[0205] Where r is the transmission radius of the network device, R is the receiving radius of the terminal, PL1(l) is the path loss of other modes, PL0(l) is the reference path loss, β1(l), β2(l), and β3(l) are coefficients, β2(l) < β1(l), β3(l) > β1(l).

[0206] Optionally, for a mode where R(l) is less than or equal to R, β1(l) or β2(l) or β3(l) = 1;

[0207] For the mode where R(l) is greater than R, β1(l) or β2(l) or β3(l))>1, and the larger l is, the larger β1(l) or β2(l) or β3(l) is;

[0208] Where R(l) is the receiving radius of other modes of the terminal, and R is the receiving radius of the current mode.

[0209] Optionally, when the reference mode includes multiple different mode values ​​in the sending mode set, obtaining the path loss according to the parameter includes:

[0210] Path losses of different modes are obtained for reference signals of different modes;

[0211] The total path loss is obtained according to the path losses of the different modes.

[0212] Optionally, when the reference mode includes multiple different mode subsets in the sending mode set, obtaining the path loss according to the parameter includes:

[0213] Based on the reference signals of different modal subsets, the path losses of different modal subsets are obtained;

[0214] The total path loss is obtained based on the path losses of different modal subsets.

[0215] Optionally, orbital angular momentum power control is performed based on path loss, including:

[0216] Power control of orbital angular momentum is performed according to the total path loss.

[0217] Optionally, perform power control of orbital angular momentum, including:

[0218] Open-loop uplink power control; or,

[0219] Closed-loop uplink power control.

[0220] Optional, open-loop uplink power control, including:

[0221] Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is a reference power, the power of each mode is P0 / N+αPL(l), and α is a preset value.

[0222] Optional, closed-loop uplink power control, including:

[0223] receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained based on the difference between the actual receiving power of the transmitting end and the power threshold;

[0224] Uplink power control is performed according to the uplink power control signaling.

[0225] Optionally, performing uplink power control according to the uplink power control signaling includes:

[0226] If δ is an absolute value, the uplink transmit power P = P0 + αPL + δ + δ(MCS);

[0227] If δ is a cumulative value, it is added to the last closed-loop transmit power, and the uplink transmit power P = P0 + αPL + δ + δ(last) + δ(MCS);

[0228] Where P0 is the reference power, δ(MCS) is the power adjustment corresponding to the current modulation and demodulation strategy, and δ(last) is the δ of the last closed-loop power control.

[0229] This method is a network-side method corresponding to the above-mentioned terminal-side method. All implementation methods in the above-mentioned method embodiments are applicable to the embodiments of this method and can achieve the same technical effects.

[0230] An embodiment of the present invention further provides a terminal, including:

[0231] A transceiver, configured to receive multiple parameters sent by a network-side device;

[0232] The processor is configured to obtain a path loss according to the parameters; and perform power control of the orbital angular momentum according to the path loss.

[0233] Optionally, the parameter includes at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network side device.

[0234] Optionally, the sending modality set includes at least one reference modality;

[0235] Wherein, the reference mode is a fixed value; or

[0236] The reference modality includes a plurality of different modality values ​​in the sending modality set; or,

[0237] The reference mode includes multiple different mode subsets in the set of transmission modes.

[0238] Optionally, when the reference mode is a fixed value, obtaining path loss according to the parameter includes:

[0239] Obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss;

[0240] Obtaining the total path loss according to the sum of the path losses of each mode.

[0241] Optionally, obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the reception radius of the terminal, and the reference path loss includes:

[0242] If r = R, for different modes l, estimating the path loss value PL1(l) of other modes = β1(l)PL0(l);

[0243] If r < R, for different modes l, estimating the path loss value PL1(l) of other modes = β2(l)PL0(l);

[0244] If r > R, for different modes l, estimating the path loss value PL1(l) of other modes = β3(l)PL0(l);

[0245] Where r is the transmission radius of the network device, R is the reception radius of the terminal; PL1(l) is the path loss of other modes, PL0(l) is the reference path loss, and β1(l), β2(l), and β3(l) are all coefficients, β2(l) < β1(l), β3(l) > β1(l).

[0246] Optionally, for a mode where R(l) is less than or equal to R, β1(l) or β2(l) or β3(l) = 1;

[0247] For a mode where R(l) is greater than R, β1(l) or β2(l) or β3(l)) > 1, and the larger l is, the larger β1(l) or β2(l) or β(3l) is;

[0248] Where R(l) is the reception radius of other modes of the terminal, and R is the reception radius of the current mode.

[0249] Optionally, when the reference mode includes multiple different mode values in the set of transmission modes, obtaining path loss according to the parameter includes:

[0250] Obtaining the path loss of different modes for reference signals of different modes;

[0251] Obtaining the total path loss according to the path losses of different modes.

[0252] Optionally, when the reference mode includes multiple different mode subsets in the sending mode set, obtaining the path loss according to the parameter includes:

[0253] Based on the reference signals of different modal subsets, the path losses of different modal subsets are obtained;

[0254] The total path loss is obtained based on the path losses of different modal subsets.

[0255] Optionally, orbital angular momentum power control is performed based on path loss, including:

[0256] Power control of orbital angular momentum is performed according to the total path loss.

[0257] Optionally, perform power control of orbital angular momentum, including:

[0258] Open-loop uplink power control; or,

[0259] Closed-loop uplink power control.

[0260] Optional, open-loop uplink power control, including:

[0261] Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is a reference power, the power of each mode is P0 / N+αPL(l), and α is a preset value.

[0262] Optional, closed-loop uplink power control, including:

[0263] receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained based on the difference between the actual receiving power of the transmitting end and the power threshold;

[0264] Uplink power control is performed according to the uplink power control signaling.

[0265] Optionally, performing uplink power control according to the uplink power control signaling includes:

[0266] If δ is an absolute value, the uplink transmit power P = P0 + αPL + δ + δ(MCS);

[0267] If δ is a cumulative value, it is added to the last closed-loop transmit power, and the uplink transmit power P = P0 + αPL + δ + δ(last) + δ(MCS);

[0268] Where P0 is the reference power, δ(MCS) is the power adjustment corresponding to the current modulation and demodulation strategy, and δ(last) is the δ of the last closed-loop power control.

[0269] The transceiver and the processor can be communicatively connected via a bus interface. The functions of the processor can also be implemented by the transceiver, and vice versa. It should be noted that the terminal provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0270] An embodiment of the present invention further provides a power control device for orbital angular momentum, applied to a network device, the device comprising:

[0271] The transceiver module is configured to send a mode set and multiple parameters to the terminal configuration; and receive the path loss feedback from the terminal based on the parameters;

[0272] A processing module is configured to perform power control according to the path loss.

[0273] The parameters include at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network-side device.

[0274] Optionally, the sending modality set includes at least one reference modality;

[0275] Where the reference mode is a fixed value; or

[0276] The reference modality includes a plurality of different modality values ​​in the transmission modality set; or

[0277] The reference modality includes a plurality of different modality subsets in the transmission modality set.

[0278] Optionally, perform power control, including:

[0279] Open-loop downlink power control; or,

[0280] Closed-loop downlink power control.

[0281] Optional, open-loop downlink power control, including:

[0282] Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or

[0283] Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is the first preset value, γ / γPL is obtained according to the receiving power of the access link, and γ is the second preset value.

[0284] Optional, closed-loop downlink power control, including:

[0285] The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold;

[0286] Perform downlink power control according to the downlink power control request.

[0287] Optionally, performing downlink power control according to the downlink power control request includes:

[0288] If δ is an absolute value, P=P0+αPL+δ+δ(MCS) or P0+αPL+γPL+δ+δ(MCS) or P0+αPL+γ+δ+δ(MCS);

[0289] If δ is a cumulative value, it is added to the last closed-loop transmit power: P = P0 + αPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γ + δ + δ(last) + δ(MCS);

[0290] Wherein, P0 is the reference power, δ(MCS) is the power adjustment amount corresponding to the current modulation and demodulation strategy, δ(last) is the power adjustment amount of the last closed-loop power control, and α is the first preset value.

[0291] It should be noted that the device is a device corresponding to the above method, and all implementation methods in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects.

[0292] An embodiment of the present invention further provides a network device, including:

[0293] A transceiver configured to send a mode set and multiple parameters to a terminal configuration; and receive a path loss feedback from the terminal based on the parameters;

[0294] A processor is configured to perform power control according to the path loss.

[0295] The parameters include at least one of the following: a transmission mode set; a reference signal RS; and a transmission radius of a network-side device.

[0296] Optionally, the sending modality set includes at least one reference modality;

[0297] Where the reference mode is a fixed value; or

[0298] The reference modality includes a plurality of different modality values ​​in the sending modality set; or,

[0299] The reference modality includes a plurality of different modality subsets in the transmission modality set.

[0300] Optionally, perform power control, including:

[0301] Open-loop downlink power control; or,

[0302] Closed-loop downlink power control.

[0303] Optional, open-loop downlink power control, including:

[0304] Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or

[0305] Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is the first preset value, γ / γPL is obtained according to the receiving power of the access link, and γ is the second preset value.

[0306] Optional, closed-loop downlink power control, including:

[0307] The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold;

[0308] Perform downlink power control according to the downlink power control request.

[0309] Optionally, performing downlink power control according to the downlink power control request includes:

[0310] If δ is an absolute value, P=P0+αPL+δ+δ(MCS) or P0+αPL+γPL+δ+δ(MCS) or P0+αPL+γ+δ+δ(MCS);

[0311] If δ is a cumulative value, it is added to the last closed-loop transmit power: P = P0 + αPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γ + δ + δ(last) + δ(MCS);

[0312] Wherein, P0 is the reference power, δ(MCS) is the power adjustment amount corresponding to the current modulation and demodulation strategy, δ(last) is the power adjustment amount of the last closed-loop power control, and α is the first preset value.

[0313] An embodiment of the present invention further provides a communication device comprising: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0314] An embodiment of the present invention further provides a computer-readable storage medium comprising instructions, which, when executed on a computer, cause the computer to execute the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0315] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0316] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0317] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0318] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0319] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0320] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, ROM, RAM, a magnetic disk, or an optical disk.

[0321] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0322] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general-purpose device. Therefore, the purpose of the present invention can also be achieved simply by providing a program product containing program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but do not necessarily need to be performed in chronological order. Certain steps can be performed in parallel or independently of each other.

[0323] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for controlling the power of orbital angular momentum, characterized in that: Applied to a terminal, the method includes: Receiving multiple parameters sent by a network-side device; Obtaining path loss according to the parameters; Performing power control of orbital angular momentum according to the path loss; Performing power control of orbital angular momentum according to the path loss includes: Open-loop uplink power control; or Closed-loop uplink power control; Open-loop uplink power control includes: Assuming there are N transmission modes, the terminal transmits different modes according to the total power equal to P0 + αPL, where P0 is the reference power, and the power of each mode is P0 / N + αPL(l), and α is a preset value; Closed-loop uplink power control includes: Receiving an uplink power control signaling, where the power adjustment amount δ indicated by the uplink power control signaling is obtained according to the difference between the actual received power at the transmitting end and the power threshold; Performing uplink power control according to the uplink power control signaling.

2. The method for controlling the power of orbital angular momentum according to claim 1, wherein: The parameters include at least one of the following: Transmission mode set; Reference signal RS; Transmission radius of the network-side device.

3. The method for controlling the power of orbital angular momentum according to claim 2, wherein: The transmission mode set includes at least one reference mode; Wherein, the reference mode is a fixed value; or The reference mode includes multiple different mode values in the transmission mode set; or The reference mode includes multiple different mode subsets in the transmission mode set.

4. The method for controlling the power of orbital angular momentum according to claim 3, wherein: When the reference mode is a fixed value, obtaining path loss according to the parameters includes: Obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the receiving radius of the terminal, and the reference path loss; Obtaining the total path loss according to the sum of the path losses of each mode.

5. The method for controlling the power of orbital angular momentum according to claim 4, wherein: Obtaining the path loss of other modes according to the size relationship between the transmission radius of the network device and the receiving radius of the terminal, and the reference path loss includes: If r = R, for different modes l, estimating the path loss value of other modes PL1(l) = β1(l)PL0(l); If r < R, for different modes l, estimating the path loss value of other modes PL1(l) = β2(l)PL0(l); If r > R, for different modes l, estimating the path loss value of other modes PL1(l) = β3(l)PL(0)l; Wherein, r is the transmission radius of the network device, R is the receiving radius of the terminal; PL1(l) is the path loss of other modes, PL0(l) is the reference path loss, and β1(l), β2(l), and β3(l) are all coefficients, β2(l) < β1(l), β3(l) > β1(l).

6. The power control method of orbital angular momentum according to claim 5, wherein For modes where R(l) is less than or equal to R, β1(l) or β2(l) or β3(l) = 1; For modes where R(l) is greater than R, β1(l) or β2(l) or β3(l) > 1, and the larger l is, the larger β1(l) or β2(l) or β3(l) is; Wherein, R(l) is the receiving radius of other modes of the terminal, and R is the receiving radius of the current mode.

7. The method for controlling the power of orbital angular momentum according to claim 3, wherein: When the reference mode includes multiple different mode values in the transmission mode set, obtaining path loss according to the parameters includes: Obtaining the path loss of different modes for different-mode reference signals; The total path loss is obtained according to the path losses of the different modes.

8. The method for controlling the power of orbital angular momentum according to claim 3, wherein: When the reference mode includes a plurality of different mode subsets in the transmission mode set, obtaining the path loss according to the parameter includes: Based on the reference signals of different modal subsets, the path losses of different modal subsets are obtained; The total path loss is obtained based on the path losses of different modal subsets.

9. The method for controlling the power of orbital angular momentum according to any one of claims 4 to 8, characterized in that: Power control of orbital angular momentum based on path loss, including: Power control of orbital angular momentum is performed according to the total path loss.

10. The method for controlling the power of orbital angular momentum according to claim 1, wherein: Performing uplink power control according to the uplink power control signaling includes: If δ is an absolute value, the uplink transmit power P = P0 + αPL + δ + δ(MCS); If δ is a cumulative value, it is added to the last closed-loop transmit power, and the uplink transmit power P = P0 + αPL + δ + δ(last) + δ(MCS); Where P0 is the reference power, δ(MCS) is the power adjustment corresponding to the current modulation and demodulation strategy, and δ(last) is the δ of the last closed-loop power control.

11. A method for controlling the power of orbital angular momentum, characterized in that: Applied to a network device, the method includes: Send a modality set and multiple parameters to the terminal configuration; receiving a path loss fed back by a terminal based on the parameters; performing power control according to the path loss; Performing power control according to the path loss includes: Open-loop downlink power control; or, Closed-loop downlink power control; Open-loop downlink power control, including: Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL, where P0 is a reference power obtained according to the received power of the access link; or, Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is a first preset value, γ / γPL is obtained based on the received power of the access link, and γ is a second preset value; Closed-loop downlink power control, including: The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold; Perform downlink power control according to the downlink power control request.

12. The method for controlling the power of orbital angular momentum according to claim 11, wherein: The parameters include at least one of the following: Send modal collection; Reference signal RS; Sending radius of the network-side device.

13. The method for controlling the power of orbital angular momentum according to claim 11, wherein: The sending modality set includes at least one reference modality; Where the reference mode is a fixed value; or The reference modality includes a plurality of different modality values ​​in the transmission modality set; or The reference modality includes a plurality of different modality subsets in the transmission modality set.

14. The method for controlling the power of orbital angular momentum according to claim 11, wherein: Performing downlink power control according to the downlink power control request, including: If δ is an absolute value, P=P0+αPL+δ+δ(MCS) or P0+αPL+γPL+δ+δ(MCS) or P0+αPL+γ+δ+δ(MCS); If δ is a cumulative value, it is added to the last closed-loop transmit power: P = P0 + αPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γPL + δ + δ(last) + δ(MCS) or P = P0 + αPL + γ + δ + δ(last) + δ(MCS); Wherein, P0 is the reference power, δ(MCS) is the power adjustment amount corresponding to the current modulation and demodulation strategy, δ(last) is the power adjustment amount of the last closed-loop power control, and α is the first preset value.

15. A power control device for orbital angular momentum, characterized in that: Applied to a terminal, the device includes: A transceiver module, used to receive multiple parameters sent by a network-side device; a processing module, configured to obtain a path loss according to the parameters; and perform power control of orbital angular momentum according to the path loss; Power control of orbital angular momentum based on path loss, including: Open loop uplink power control; or, Closed-loop uplink power control; Open-loop uplink power control, including: Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is the reference power and the power of each mode is P0 / N+αPL(l), where α is a preset value. Closed-loop uplink power control, including: receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained according to a difference between an actual received power at the transmitting end and a power threshold; Uplink power control is performed according to the uplink power control signaling.

16. A terminal, characterized in that: include: A transceiver, configured to receive multiple parameters sent by a network-side device; A processor, configured to obtain a path loss according to the parameters; Power control of orbital angular momentum based on path loss; Power control of orbital angular momentum based on path loss, including: Open loop uplink power control; or, Closed-loop uplink power control; Open-loop uplink power control, including: Assuming there are N transmission modes, the terminal transmits different modes with a total power equal to P0+αPL, where P0 is the reference power and the power of each mode is P0 / N+αPL(l), where α is a preset value. Closed-loop uplink power control, including: receiving an uplink power control signaling, wherein the power adjustment amount δ indicated by the uplink power control signaling is obtained according to a difference between an actual received power at the transmitting end and a power threshold; Uplink power control is performed according to the uplink power control signaling.

17. A power control device for orbital angular momentum, characterized in that: Applied to network equipment, the device includes: The transceiver module is configured to send a mode set and multiple parameters to the terminal configuration; and receive the path loss feedback from the terminal based on the parameters; a processing module, configured to perform power control according to the path loss; Performing power control according to the path loss includes: Open-loop downlink power control; or, Closed-loop downlink power control; Open-loop downlink power control, including: Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is a first preset value, γ / γPL is obtained based on the received power of the access link, and γ is a second preset value; Closed-loop downlink power control, including: The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold; Perform downlink power control according to the downlink power control request.

18. A network device, characterized in that: include: A transceiver configured to send a modality set and multiple parameters to a terminal configuration; receiving a path loss fed back by a terminal based on the parameters; a processor, configured to perform power control according to the path loss; Performing power control according to the path loss includes: Open-loop downlink power control; or, Closed-loop downlink power control; Open-loop downlink power control, including: Assuming there are N transmission modes, the network device transmits different modes with a total power equal to P0+αPL, where P0 is a reference power obtained based on the received power of the access link; or Assuming there are N transmission modes, the network device transmits different modes according to a total power equal to P0+αPL+γ / P0+αPL+γPL, where P0 is the reference power, α is a first preset value, γ / γPL is obtained based on the received power of the access link, and γ is a second preset value; Closed-loop downlink power control, including: The network device receives a downlink power control request sent by the relay node, where the power adjustment amount δ indicated by the downlink power control request is obtained according to the difference between the actual receiving power of the relay node and the power threshold; Perform downlink power control according to the downlink power control request.

19. A communication device, characterized in that: include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 10 or the method according to any one of claims 11 to 14 is performed.

20. A computer-readable storage medium, characterized in that The method comprises instructions, which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 10 or the method according to any one of claims 11 to 14.

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