Optical routing method, computer device and readable storage medium

Abstract

This application relates to the field of optical communication and optical network technology, and discloses an optical routing method, computer device, and readable storage medium. The method includes acquiring optical routing information, which includes an optical routing path and control parameters of each control node in the optical routing path; determining the initial spatial phase distribution required for the optical signal to transmit along the optical routing path based on the control parameters; generating an optical signal according to the initial spatial phase distribution and sending the optical signal to a first control node in the optical routing path; the first control node adjusting the initial spatial phase distribution to a first spatial phase distribution based on its own first control parameters, and controlling the optical signal transmission along the optical routing path based on the first spatial phase distribution. Its beneficial effect is that it can improve the response speed during optical signal transmission.

Description

Technical Field

[0001] This application relates to the field of optical communication and optical network technology, and in particular to an optical routing method, a computer device, and a readable storage medium. Background Technology

[0002] Space optical communication refers to a communication method that transmits optical signals in free space and carries data information within those signals.

[0003] Currently, in space optical communication networks, some technologies rely on electronically controlled optical switching or routing equipment to regulate the transmission direction of optical signals. These technologies require photoelectric conversion, modulation and demodulation, or complex electronic signal processing of the optical signals, resulting in slow response times. Other technologies introduce ORIS (Optical Reconfigurable Intelligent Surface) into space optical communication networks, using ORIS to achieve functions such as optical signal shaping, reflection enhancement, and coverage extension. These technologies require dynamic calculation and configuration of ORIS parameters based on the optical signal transmission path, still failing to improve response speed. Summary of the Invention

[0004] This application provides an optical routing method, a computer device, and a readable storage medium, which solves the technical problem of slow response speed during optical signal transmission and achieves the technical effect of improving response speed.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include: In a first aspect, embodiments of this application provide an optical routing method applied to a base station, the method comprising: Obtain optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path; Based on the aforementioned control parameters, the initial spatial phase distribution required for the optical signal to propagate along the optical routing path is determined; According to the initial spatial phase distribution, an optical signal is generated and sent to the first control node in the optical routing path. The first control node is used to adjust the initial spatial phase distribution to a first spatial phase distribution based on the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0006] Secondly, embodiments of this application provide an optical routing method applied to a first control node, the first control node having a first control parameter; the method includes: The system receives an optical signal transmitted by a base station, wherein the optical signal has an initial spatial phase distribution, which is obtained based on the control parameters of each control node in the optical routing path and is used to indicate the optical routing path. According to the first control parameter, the initial spatial phase distribution is adjusted to a first spatial phase distribution, and based on the first spatial phase distribution, the optical signal is controlled to transmit along the optical routing path.

[0007] Thirdly, embodiments of this application provide an optical routing method based on an optical routing path, wherein the optical routing path includes at least one control node, and the method is applied to a first control node in the optical routing path, including: The system receives optical signals sent by the base station and obtains optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path. Based on the aforementioned control parameters, the initial spatial phase distribution required for the optical signal to propagate along the optical routing path is determined; The spatial phase distribution of the optical signal is adjusted to the initial spatial phase distribution, and the initial spatial phase distribution of the optical signal is adjusted to the first spatial phase distribution according to the first control parameter of the node, and the optical signal is controlled to transmit along the optical routing path based on the first spatial phase distribution.

[0008] Fourthly, embodiments of this application provide an optical routing device, comprising: The information acquisition module is used to acquire optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path. The distribution determination module is used to determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters. The signal transmission module is used to generate an optical signal according to the initial spatial phase distribution and send the optical signal to a first control node in the optical routing path. The first control node is used to adjust the initial spatial phase distribution to a first spatial phase distribution based on the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0009] Fifthly, embodiments of this application provide an optical routing device, comprising: A signal receiving module is used to receive optical signals sent by a base station, wherein the optical signals have an initial spatial phase distribution, which is obtained based on the control parameters of each control node in the optical routing path and is used to indicate the optical routing path. The phase adjustment module is used to adjust the initial spatial phase distribution to a first spatial phase distribution according to the first control parameter, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0010] Sixthly, embodiments of this application provide an optical routing device, comprising: The signal receiving module is used to receive optical signals sent by the base station and obtain optical routing information, wherein the optical routing information includes the optical routing path and the control parameters of each control node in the optical routing path; The distribution determination module is used to determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters. The signal transmission module is used to adjust the spatial phase distribution of the optical signal to the initial spatial phase distribution, and adjust the initial spatial phase distribution of the optical signal to a first spatial phase distribution according to the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0011] In a seventh aspect, embodiments of this application provide a computer device, including: A memory and a processor are communicatively connected, the memory storing computer instructions, and the processor executing the computer instructions to perform the optical routing method as described above.

[0012] Eighthly, embodiments of this application provide a computer-readable storage medium storing computer instructions that cause a computer to perform the optical routing method as described in any of the preceding claims. In some embodiments of this application, when a base station transmits an optical signal, it determines the initial spatial phase distribution required for the optical signal to transmit along the optical routing path based on the control parameters of each control node in the optical routing path, and generates the optical signal according to the initial spatial phase distribution. This allows the optical signal to adapt to the control parameters of each control node in the optical routing path, eliminating the need for each control node to dynamically calculate control parameters while transmitting the optical signal along the optical routing path, thereby improving the response efficiency during optical signal transmission. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a space optical communication network based on ORIS. Figure 2 A flowchart illustrating the optical routing method provided in the first embodiment of this application; Figure 3 A flowchart illustrating the optical routing method provided in the second embodiment of this application; Figure 4 A schematic diagram of a space optical communication network provided for some embodiments of this application; Figure 5 A flowchart illustrating the optical routing method provided in the third embodiment of this application; Figure 6 A schematic diagram of a base station module provided for some embodiments of this application; Figure 7 A schematic diagram of a control node provided for some embodiments of this application; Figure 8 A schematic diagram of a receiving end provided for some embodiments of this application; Figure 9 Schematic diagram of optical signal transmission between base station, control node and receiver provided for some embodiments of this application; Figure 10 A schematic diagram of a module for an optical routing device provided in the first embodiment of this application; Figure 11 A schematic diagram of a module for an optical routing device provided in the second embodiment of this application; Figure 12 A schematic diagram of a module for an optical routing device provided in the third embodiment of this application; Figure 13 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In space optical communication networking, some technologies rely on optical switching or routing equipment such as mechanically rotating mirrors, electro-optic modulators, acousto-optic modulators, and liquid crystal spatial light modulators to control the transmission direction of optical signals. These technologies require photoelectric conversion, modulation and demodulation, or complex electronic signal processing of optical signals, resulting in complex system structures, long control links, and limited response speeds, which cannot meet practical requirements.

[0017] Other technologies introduce ORIS into space optical communication networks, enabling functions such as optical signal shaping, reflection enhancement, and coverage extension. These technologies require dynamic calculation and configuration of ORIS parameters based on the optical signal transmission path, but still cannot improve response speed. For ease of understanding, please refer to the relevant documentation. Figure 1 This is a schematic diagram of a space optical communication network based on ORIS. Figure 1 In this context, space optical communication networking includes base stations, multi-level ORIS nodes, and multiple receivers. In practical applications, the number of receivers, the number of cascaded ORIS nodes, the connection relationships between ORIS nodes, and the connection relationships between ORIS nodes and receivers can be configured according to actual needs; this application does not impose any restrictions on these. For example... Figure 1 For example, two levels of ORIS nodes are included.

[0018] Multiple optical routing paths can be formed between the base station, ORIS nodes, and receivers. These optical routing paths characterize the transmission path of optical signals within the network. For example, the path Base Station > Primary ORIS Node A1 > Secondary ORIS Node B1 > Receiver 1 can be considered the first optical routing path, and Base Station > Primary ORIS Node A1 > Secondary ORIS Node B2 > Receiver 3 can be considered the second optical routing path. And so on.

[0019] The base station can send an optical signal carrying data information to the first ORIS node in the configured optical routing path, which then sends the optical signal to the second ORIS node in the same path, and so on, to the receiver in the optical routing path. For example, assuming the optical routing path is: Base Station > First-level ORIS Node A1 > Second-level ORIS Node B2 > Receiver 3, the base station can send the optical signal to the first-level ORIS node A1, which then sends it to the second-level ORIS node B2, and finally the second-level ORIS node B2 sends it to the receiver 3.

[0020] For any ORIS node, after receiving an optical signal, it can calculate control parameters based on the configured optical routing path, the next node in the optical routing path, and the location information of the next node. Then, based on these control parameters, the transmission direction of the optical signal is adjusted so that the optical signal can enter the next node. The next node can be either an ORIS node or a receiver. For example, the next node of a first-level ORIS node A1 is a second-level ORIS node B1, and the next node of second-level ORIS node B1 is either receiver 1 or receiver 2. Based on this principle, the transmission of the optical signal along the optical routing path can be controlled.

[0021] Based on the above description, it can be understood that each ORIS node needs to dynamically calculate and adjust its control parameters according to the optical routing path. For example, taking the primary ORIS node A1 as an example: When the optical routing path is base station > primary ORIS node A1 > secondary ORIS node B2 > receiver 3, primary ORIS node A1 needs to calculate and adjust its control parameter to parameter 1 to send the optical signal to secondary ORIS node B2. When the optical routing path is base station > primary ORIS node A1 > secondary ORIS node B1 > receiver 1, primary ORIS node A1 needs to calculate and adjust its control parameter to parameter 2 to send the optical signal to secondary ORIS node B1. That is, the control parameters of primary ORIS node A1 can be different in different optical signal transmission processes. Primary ORIS node A1 needs to calculate and adjust its control parameters according to the actual optical routing path in each optical signal transmission process. Since parameter calculation and adjustment consume time, therefore... Figure 1 The techniques shown still cannot improve the response speed during optical signal transmission.

[0022] In view of this, based on Figure 1 The illustrated space optical communication network, in this application, first provides an optical routing method applied to a base station, which can improve the response speed during optical signal transmission. The base station may include electronic devices such as servers and controllers. The optical routing method can be executed during the operation of the electronic devices.

[0023] See also Figure 2 This is a flowchart illustrating the optical routing method provided in the first embodiment of this application. Figure 2 In this context, the optical routing method includes the following steps: Step S201: Obtain optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path.

[0024] In this embodiment, the control node is Figure 1The ORIS nodes in the system. Multiple ORIS nodes can be cascaded to form multiple optical routing paths. The starting point of each optical routing path is the base station, and the terminal is one of the receiving ends.

[0025] The base station can obtain optical routing information through a human-machine interface. This information includes the user-configured optical routing path and the control parameters of each control node within that path. The user-configured optical routing path is the optical transmission path required in the actual application. For example, suppose multiple ORIS nodes are cascaded to form optical routing paths P1-P5. If the user needs to transmit optical signals through optical routing path P1, they can configure optical routing path P1 and the control parameters of each control node within it through the human-machine interface. In this case, the optical routing information obtained by the base station includes optical routing path P1 and the control parameters of each control node within it.

[0026] Furthermore, the control parameters of each control node can be pre-configured according to actual needs. The control parameters of different control nodes can be the same or different. Specifically, for any given control node, different control parameters can adjust the transmission direction of the optical signal in different ways. For example, when the control parameter of control node A1 is parameter 1, control node A1 can adjust the transmission direction of the optical signal to direction F1; when the control parameter of control node A1 is parameter 2, control node A1 can adjust the transmission direction of the optical signal to direction F2. In short, by configuring the control parameters of each control node, the adjustment logic of the control node for the transmission direction of the optical signal can be controlled.

[0027] Specifically, control parameters can be used to adjust the spatial phase distribution of an optical signal. The spatial phase distribution characterizes the phase distribution at different locations within the space containing the optical signal. In related fields, when an optical signal passes through a lens, its spatial phase distribution is used to control the transmission direction of the signal; that is, the lens can change the transmission direction of the optical signal based on the spatial phase distribution. Different spatial phase distributions correspond to different transmission directions. For example, suppose the optical signal's transmission direction before entering the lens is direction F1. When the spatial phase distribution of the optical signal is M1, if the optical signal passes through the lens, its transmission direction can be adjusted from direction F1 to direction F2. That is, the direction in which the optical signal enters the lens is direction F1, and the direction in which it exits the lens is direction F2. When the spatial phase distribution of the optical signal is M2, if the optical signal passes through the lens, its transmission direction can be adjusted from direction F1 to direction F3. That is, the direction in which the optical signal enters the lens is direction F1, and the direction in which it exits the lens is direction F3. Here, directions F1, F2, and F3 can be different directions.

[0028] It should be noted that when the optical signal does not pass through a lens, the spatial phase distribution of the optical signal may not affect the transmission direction of the optical signal. For example, taking the spatial phase distribution M1 in the example above as an example. When the spatial phase distribution of the optical signal is M1, if the optical signal does not pass through a lens, the optical signal will still transmit along the F1 direction and will not transmit along the F2 direction.

[0029] In this embodiment, no lens is provided in the base station, but lenses are provided in each control node. The base station can adjust the orientation of its optical signal transmitter to align with the first control node in the optical routing path, thereby transmitting an optical signal to the first control node. That is, the actual transmission direction of the optical signal transmitted from the base station may differ from the transmission direction corresponding to its spatial phase distribution. After receiving the optical signal, each control node in the optical routing path can adjust the spatial phase distribution of the optical signal based on its own control parameters, and then input the optical signal into the lens. Thus, the actual transmission direction of the optical signal output by each control node is the same as the transmission direction corresponding to its spatial phase distribution; that is, in each control node, the adjusted spatial phase distribution can be used to control the transmission direction of the optical signal.

[0030] Step S202: Based on the control parameters, determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path.

[0031] In this embodiment, the initial spatial phase distribution is the spatial phase distribution present in the optical signal transmitted by the base station. This spatial phase distribution can be used to control the transmission of the optical signal along the optical routing path in the optical routing information.

[0032] Specifically, based on the description of step S201, since each control node in the optical routing path can adjust the spatial phase distribution in the optical signal based on the control parameters of its node, and control the transmission direction of the optical signal based on the adjusted spatial phase distribution, the initial spatial phase distribution that the optical signal transmitted from the base station should have can be derived backward from the receiving end of the optical routing path based on the control parameters of each control node in the optical routing path. The following is a detailed explanation of this process.

[0033] In this embodiment, the required transmission direction of the optical signal, assuming the optical signal emitted by the last control node can reach the receiver, can be determined based on the relative positional relationship between the last control node and the receiver in the optical routing path. Based on this transmission direction and the control parameters of the last control node, the required spatial phase distribution for the optical signal to enter the last control node can be deduced. Based on this spatial phase distribution and the control parameters of the penultimate control node, the required spatial phase distribution for the optical signal to enter the penultimate control node can be deduced. This process continues until the required spatial phase distribution for the optical signal to enter the first control node in the optical routing path can be deduced. The required spatial phase distribution for entering the first control node is the initial spatial phase distribution required by the optical signal.

[0034] For example, in conjunction with reference Figure 1 Assuming the optical routing path is Base Station > Primary ORIS Node A1 > Secondary ORIS Node B1 > Receiver 1, then based on the relative positions of Secondary ORIS Node B1 and Receiver 1, it can be determined that the optical signal transmitted by Secondary ORIS Node B1 needs to be transmitted in direction F4 to reach Receiver 1. Based on direction F4 and the control parameters of Secondary ORIS Node B1, the required spatial phase distribution M1 for the optical signal to enter Secondary ORIS Node B1 can be deduced. Since spatial phase distribution M1 is also the spatial phase distribution of the optical signal output from Primary ORIS Node A1, based on spatial phase distribution M1 and the control parameters of Primary ORIS Node A1, the required spatial phase distribution M2 for the optical signal to enter Primary ORIS Node A1 can be deduced. Since spatial phase distribution M2 is also the spatial phase distribution of the optical signal output from the base station, spatial phase distribution M2 is the initial spatial phase distribution.

[0035] Step S203: Generate an optical signal according to the initial spatial phase distribution, and send the optical signal to the first control node in the optical routing path. The first control node is used to adjust the initial spatial phase distribution to the first spatial phase distribution based on the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0036] Specifically, the first control node is the first control node in the optical routing path, which directly interacts with the base station using optical signals.

[0037] Based on step S202, since the initial spatial phase distribution is derived from the control parameters of each control node in the optical routing path, after each control node adjusts the spatial phase distribution of the optical signal according to the control parameters of its node, the optical signal will inevitably be transmitted along the optical routing path.

[0038] Understandably, before transmitting an optical signal, the base station can adjust the initial spatial phase distribution of the optical signal based on the optical routing path and the control parameters of each control node within that path. This ensures the optical signal is compatible with the optical routing path and control nodes, allowing the control parameters of each control node to remain relatively fixed. Consequently, during optical signal transmission, there is no need for each control node to dynamically calculate its control parameters, significantly improving the response efficiency during transmission.

[0039] For ease of understanding, please refer to the following: Figure 1 The text describes some technologies. In some technologies, the optical signal sent from the base station to the control node does not include the initial spatial phase distribution determined based on control parameters. Therefore, the transmission direction of the optical signal can only be controlled by each control node calculating control parameters, and cannot be controlled from the base station side. The control node needs to calculate control parameters every time the optical signal is transmitted, resulting in low response efficiency. In the technical solution of this application, the control parameters on each control node side are relatively fixed. Before the base station transmits the optical signal, by adjusting the initial spatial phase distribution of the optical signal, it can actively adapt to the optical routing path and the control parameters of each control node in the optical routing path. This significantly reduces the calculation time of the control node while accurately transmitting the optical signal, thereby improving the response efficiency during optical signal transmission.

[0040] In summary, in the technical solutions of some embodiments of this application, when the base station transmits an optical signal, it determines the initial spatial phase distribution required for the optical signal to transmit along the optical routing path based on the control parameters of each control node in the optical routing path, and generates the optical signal according to the initial spatial phase distribution. In this way, the optical signal can be adapted to the control parameters of each control node in the optical routing path, so that while transmitting the optical signal according to the optical routing path, there is no need for each control node to dynamically calculate the control parameters, thereby improving the response efficiency during optical signal transmission.

[0041] Furthermore, in some embodiments, determining the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters in step S202 includes: Using the control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, where the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameter.

[0042] The phase gradient parameter is used to characterize the rate and trend of phase change along a specific direction in the initial spatial phase distribution. Based on the above inverse reasoning principle, the phase gradient parameter can be obtained.

[0043] Depending on the actual transmission scenario of the optical signal, a spatial phase function representing the initial spatial phase distribution can be constructed based on the phase gradient parameter, either linearly or nonlinearly. For example, a linear spatial phase function can be expressed as in expression (1).

[0044] (1) in, Represents the spatial phase function. , , and The x-axis represents the direction of optical signal propagation, and the y-axis represents the direction of optical signal propagation. The x-axis and y-axis are perpendicular to each other, and the plane formed by the x-axis and y-axis is perpendicular to the direction of optical signal propagation. and This refers to the phase gradient parameter. By adjusting the phase gradient parameter, the initial spatial phase distribution can be adjusted.

[0045] , representing the wavenumber of the optical signal. Indicates the wavelength of light.

[0046] It should be noted that expression (1) is only an example of a spatial phase function. In practical applications, spatial phase functions can be constructed according to actual needs, and this application does not impose any restrictions on this.

[0047] Based on the spatial phase function shown in expression (1), an optical signal can be generated based on expression (2).

[0048] (2) in, This represents the optical signal generated based on the initial spatial phase distribution, where t represents time and j is the imaginary unit. This represents the amplitude of the optical signal at coordinates (x, y). This is the carrier frequency of the optical signal.

[0049] In the above embodiments, the phase gradient parameter can reflect the phase change trend in the initial spatial phase distribution. Therefore, determining the initial spatial phase distribution based on the phase gradient parameter can improve the accuracy and reliability of the initial spatial phase distribution.

[0050] In some embodiments, an optical routing path includes multiple sub-optical routing paths, each sub-optical routing path including at least one control node. For example, see reference... Figure 1In the optical routing path, after the optical signal reaches the primary ORIS node A1 from the base station, it can be divided into two sub-optical signals. The first sub-optical signal needs to be transmitted from the primary ORIS node A1 to the secondary ORIS node B1, and the second sub-optical signal needs to be transmitted from the primary ORIS node A1 to the secondary ORIS node B2. In this way, two sub-routing optical paths can be formed.

[0051] When the optical routing path includes multiple sub-optical routing paths, step S202, which determines the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters, may include: For any sub-optical routing path, determine the subspace phase distribution required for the optical signal to transmit along the sub-optical routing path; The initial spatial phase distribution is obtained by combining the sub-space phase distributions of multiple sub-optical routing paths.

[0052] Specifically, based on the above reverse reasoning principle, the initial spatial phase distribution of each sub-route optical path can be determined, and the sub-spatial phase distribution of multiple sub-optical routes can be combined according to expression (3).

[0053] (3) Where N represents the total number of sub-optical routing paths, and n represents the nth sub-optical routing path. This represents the subspace phase distribution corresponding to the nth sub-optical routing path.

[0054] In the above embodiments, an initial spatial phase distribution is obtained by combining the sub-spatial phase distributions of multiple sub-optical routing paths. This allows for adaptation to different optical signal transmission scenarios, improving the applicability of the solution.

[0055] In some embodiments, for any sub-optical routing path, determining the required subspace phase distribution for optical signal transmission along the sub-optical routing path includes: Using the control parameters corresponding to the sub-optical routing path as constraints, the phase gradient parameters required for the optical signal to transmit along the sub-optical routing path are determined, whereby the phase gradient parameters are used to control the transmission direction of the optical signal. Based on the phase gradient parameter, the subspace phase distribution required for the optical signal to be transmitted along the sub-optical routing path is determined.

[0056] Specifically, the relevant principles and parameters of step S202 are described, and will not be repeated here.

[0057] and Figure 1 Corresponding to the method described above, this application also provides an optical routing method applied to the first control node, which can improve the response speed during optical signal transmission. (See also...) Figure 3This is a flowchart illustrating the optical routing method provided in the second embodiment of this application. Figure 3 In this context, the optical routing method includes the following steps: Step S301: Receive the optical signal sent by the base station, wherein the optical signal has an initial spatial phase distribution, which is obtained based on the control parameters of each control node in the optical routing path and is used to indicate the optical routing path.

[0058] Step S302: According to the first control parameter, the initial spatial phase distribution is adjusted to the first spatial phase distribution, and based on the first spatial phase distribution, the optical signal is controlled to transmit along the optical routing path.

[0059] Specifically, regarding Figure 3 For the principles and beneficial effects, please refer to Figure 2 The relevant descriptions are not repeated here.

[0060] In some embodiments, the first control parameter includes a first control phase distribution. Step S302, adjusting the initial spatial phase distribution to the first spatial phase distribution according to the first control parameter, includes: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

[0061] For ease of understanding, please refer to the following: Figure 4 This is a schematic diagram of a space optical communication network provided for some embodiments of this application. Figure 4 In this space optical communication network, a base station 401, a control node 402, a lens 403, and a receiver 404 are included. The control node 402 includes a phase control array 405. The phase control array 405 includes multiple phase control units 4051. After receiving an optical signal, each phase control unit 4051 can perform phase interference on the received optical signal, causing a change in the spatial phase distribution of the optical signal, thereby adjusting the initial spatial phase distribution.

[0062] Specifically, each phase modulation unit 4051 may have its own corresponding modulation phase. The modulation phases of multiple phase modulation units 4051 constitute the first modulation phase distribution. Assume that the optical field of the optical signal received by the phase modulation unit 4051 is as shown in expression (4).

[0063] (4) in, The light field representing the incident light signal of the phase modulation array 405. This indicates the amplitude of the optical signal received by the phase modulation array 405. ) represents the initial spatial phase distribution of the optical signal received by the phase modulation array 405.

[0064] And, assuming the first modulation phase distribution is Then, by superimposing the first controlled phase distribution and the initial spatial phase distribution, the first spatial phase distribution can be obtained. Based on the first spatial phase distribution, the optical field of the optical signal emitted by the phase modulation unit 4051 is shown in expression (5).

[0065] (5) in, This represents the light field of the light signal emitted from the phase modulation array 405.

[0066] As can be seen from expressions (4) and (5), the phase distribution of the emitted light signal is jointly determined by the spatial phase distribution of the incident light signal and the first modulation phase distribution. Specifically, the equivalent phase distribution formed in space by the spatial phase distribution of the incident light signal and the first modulation phase distribution... As shown in expression (6).

[0067] (5) Furthermore, when When the emitted light signal is distributed with a specified gradient in space, it will undergo directional deflection in free space, and the deflection angle (i.e., the transmission direction) will be significant. , The phase gradient can be approximated by the phase gradient, as shown in expressions (6) and (7).

[0068] (6) (7) The meanings of the relevant parameters can be found in the above descriptions, and will not be repeated here.

[0069] In the above embodiments, phase interference can occur by superimposing the first controlled phase distribution and the initial spatial phase distribution. Adjusting the spatial phase distribution of the optical signal based on phase interference eliminates the need for calculations by the control unit, thereby improving the response speed during optical signal transmission.

[0070] See also Figure 1 In some embodiments, the optical routing path includes a second control node, which has a second control parameter. Specifically, the second control node is the next control node after the first control node. The outgoing optical signal of the first control node serves as the incoming optical signal of the second control node. The control optical signal is transmitted along the optical routing path, including: Based on the first spatial phase distribution, the optical signal is sent to the second control node, wherein the second control node is used to adjust the first spatial phase distribution to the second spatial phase distribution according to the second control parameters, and control the optical signal to be transmitted along the optical routing path based on the second spatial phase distribution.

[0071] In this way, by controlling the successive transmission between nodes, optical signals can be transmitted to the receiving end in the optical routing path.

[0072] In some embodiments, the initial spatial phase distribution determination operation performed at the base station can also be transferred to the first control node. That is, the base station transmits an optical signal without an initial spatial phase distribution to the first control node, and the first control node determines the initial spatial phase distribution and adjusts the spatial phase distribution of the optical signal.

[0073] Based on the above description, this application also provides an optical routing method applied to a first control node. (See also...) Figure 5 This is a flowchart illustrating the optical routing method provided in the third embodiment of this application. Figure 5 In this context, the optical routing method includes the following steps: Step S501: Receive the optical signal sent by the base station and obtain optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path.

[0074] Step S502: Based on the control parameters, determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path.

[0075] Step S503: Adjust the spatial phase distribution of the optical signal to the initial spatial phase distribution, and adjust the initial spatial phase distribution of the optical signal to the first spatial phase distribution according to the first control parameter of the node, and control the optical signal to transmit along the optical routing path based on the first spatial phase distribution.

[0076] In some embodiments, the first control parameter includes a first control phase distribution; According to the first control parameter of the node, the initial spatial phase distribution of the optical signal is adjusted to the first spatial phase distribution, including: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

[0077] In some embodiments, determining the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on control parameters includes: Using the control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, where the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameter.

[0078] The operating principle of the first control node is similar to that of the base station, and will not be elaborated here.

[0079] This concludes the description of the method described in this application. The architecture of the base station, control node, and receiver will be explained below.

[0080] See also Figure 6 The diagram below shows a module schematic of a base station provided in some embodiments of this application. Figure 6 In this system, the base station includes a system control module, an optical signal generation module, a phase adjustment module, and an optical signal transmission module. The optical signal generation module generates a basic optical signal and transmits it to the phase adjustment module. The phase adjustment module determines the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters of each control node in the optical routing path. Based on this initial spatial phase distribution, it adjusts the phase spatial distribution of the basic optical signal and then sends the optical signal to the optical signal transmission module, which then transmits it to the first control node in the optical routing path. The system control module controls the operation of the optical signal generation module, phase adjustment module, and optical signal transmission module, such as adjusting their operating parameters.

[0081] See also Figure 7 This is a schematic diagram of a control node provided in some embodiments of this application. Figure 7 In this system, the control node comprises an optical reflective unit array, a phase response control module, and a node control module. The optical reflective unit array receives optical signals transmitted from the base station or the previous control node. The phase response control module adjusts the spatial phase distribution of the optical signal based on control parameters. The node control module controls the operation of the optical reflective unit array and the phase response control module, such as adjusting their operating parameters.

[0082] See also Figure 8 The diagram below shows a receiver module provided in some embodiments of this application. Figure 8 In this system, the receiving end includes an optical signal receiving module, a signal detection module, and a receiving control module. The optical signal receiving module receives optical signals, the signal detection module detects the intensity of the received optical signal or determines its arrival time to confirm whether the optical signal has successfully reached the receiving end, and the receiving control module coordinates the operation of the various modules within the receiving end or transmits the received optical signal to other communication devices.

[0083] See also Figure 9This is a schematic diagram of optical signal transmission between a base station, a control node, and a receiver, provided for some embodiments of this application. Figure 9 In the diagram, base station 401 sends an optical signal to control node 402. The dashed lines in the diagram represent the data stream within the optical signal. Then, control node 402 sends the optical signal to receiver 404.

[0084] See also Figure 10 This is a schematic diagram of a module of an optical routing device provided in the first embodiment of this application. The optical routing device includes: The information acquisition module 101 is used to acquire optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path. The distribution determination module 102 is used to determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters. The signal transmission module 103 is used to generate an optical signal according to the initial spatial phase distribution and send the optical signal to the first control node in the optical routing path. The first control node is used to adjust the initial spatial phase distribution to a first spatial phase distribution based on the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0085] In some embodiments, the distribution determination module 102 is used to: Using the control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, where the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameter.

[0086] In some embodiments, the optical routing path includes multiple sub-optical routing paths, each sub-optical routing path including at least one control node; the distribution determination module 102 is used for: For any sub-optical routing path, determine the subspace phase distribution required for the optical signal to transmit along the sub-optical routing path; The initial spatial phase distribution is obtained by combining the sub-space phase distributions of multiple sub-optical routing paths.

[0087] In some embodiments, the distribution determination module 102 is used to: Using the control parameters corresponding to the sub-optical routing path as constraints, the phase gradient parameters required for the optical signal to transmit along the sub-optical routing path are determined, whereby the phase gradient parameters are used to control the transmission direction of the optical signal. Based on the phase gradient parameter, the subspace phase distribution required for the optical signal to be transmitted along the sub-optical routing path is determined.

[0088] See also Figure 11This is a schematic diagram of a module of an optical routing device provided in the second embodiment of this application. The optical routing device includes: The signal receiving module 111 is used to receive optical signals sent by the base station, wherein the optical signals have an initial spatial phase distribution, which is obtained based on the control parameters of each control node in the optical routing path and is used to indicate the optical routing path. The phase adjustment module 112 is used to adjust the initial spatial phase distribution to a first spatial phase distribution according to the first control parameter, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0089] In some embodiments, the first control parameter includes a first control phase distribution; the phase adjustment module 112 is used for: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

[0090] In some embodiments, the optical routing path includes a second control node, the second control node having a second control parameter; the phase adjustment module 112 is used for: Based on the first spatial phase distribution, the optical signal is sent to the second control node, wherein the second control node is used to adjust the first spatial phase distribution to the second spatial phase distribution according to the second control parameters, and control the optical signal to be transmitted along the optical routing path based on the second spatial phase distribution.

[0091] See also Figure 12 This is a schematic diagram of a module of an optical routing device provided in the third embodiment of this application. The optical routing device includes: The signal receiving module 121 is used to receive optical signals sent by the base station and obtain optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path. The distribution determination module 122 is used to determine the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters; The signal transmission module 123 is used to adjust the spatial phase distribution of the optical signal to the initial spatial phase distribution, and adjust the initial spatial phase distribution of the optical signal to the first spatial phase distribution according to the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

[0092] In some embodiments, the first control parameter includes a first control phase distribution; the signal transmission module 123 is used for: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

[0093] In some embodiments, the distribution determination module 122 is used for: Using the control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, where the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameter.

[0094] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0095] In this embodiment, the optical routing device is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0096] Please see Figure 13 , Figure 13 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application, such as... Figure 13 As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 13 Take a processor 10 as an example.

[0097] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0098] The memory 20 stores instructions executable by at least one processor 10 to cause the at least one processor 10 to perform the method shown in the above embodiments.

[0099] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0100] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0101] This application provides a computer program product including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method of any embodiment of this application.

[0102] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An optical routing method, characterized in that, Applied to a base station, the method includes: Obtain optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path; Based on the aforementioned control parameters, the initial spatial phase distribution required for the optical signal to propagate along the optical routing path is determined; According to the initial spatial phase distribution, an optical signal is generated and sent to the first control node in the optical routing path. The first control node is used to adjust the initial spatial phase distribution to a first spatial phase distribution based on the first control parameter of the node, and control the optical signal to be transmitted along the optical routing path based on the first spatial phase distribution.

2. The method according to claim 1, characterized in that, Determining the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters includes: Using the aforementioned control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, wherein the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameters.

3. The method according to claim 1, characterized in that, The optical routing path includes multiple sub-optical routing paths, and each sub-optical routing path includes at least one control node; Determining the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters includes: For any of the sub-optical routing paths, determine the subspace phase distribution required for the optical signal to transmit along the sub-optical routing path; The initial spatial phase distribution is obtained by combining the sub-spatial phase distributions of multiple sub-optical routing paths.

4. The method according to claim 3, characterized in that, Determining the subspace phase distribution required for the transmission of the optical signal along any of the sub-optical routing paths includes: Using the control parameters corresponding to the sub-optical routing path as constraints, the phase gradient parameters required for the optical signal to transmit along the sub-optical routing path are determined, wherein the phase gradient parameters are used to control the transmission direction of the optical signal; Based on the phase gradient parameters, the subspace phase distribution required for the optical signal to be transmitted along the sub-optical routing path is determined.

5. An optical routing method, characterized in that, The method is applied to a first control node, which has a first control parameter; the method includes: The system receives an optical signal transmitted by a base station, wherein the optical signal has an initial spatial phase distribution, which is obtained based on the control parameters of each control node in the optical routing path and is used to indicate the optical routing path. According to the first control parameter, the initial spatial phase distribution is adjusted to a first spatial phase distribution, and based on the first spatial phase distribution, the optical signal is controlled to transmit along the optical routing path.

6. The method according to claim 5, characterized in that, The first control parameter includes a first control phase distribution; Adjusting the initial spatial phase distribution to the first spatial phase distribution according to the first control parameter includes: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

7. The method according to claim 5, characterized in that, The optical routing path includes a second control node, and the second control node has a second control parameter; Controlling the transmission of the optical signal along the optical routing path includes: Based on the first spatial phase distribution, the optical signal is sent to the second control node, wherein the second control node is used to adjust the first spatial phase distribution to a second spatial phase distribution according to the second control parameters, and control the optical signal to be transmitted along the optical routing path based on the second spatial phase distribution.

8. An optical routing method based on optical routing paths, characterized in that, The optical routing path includes at least one control node, and the method is applied to the first control node in the optical routing path, including: The system receives optical signals sent by the base station and obtains optical routing information, which includes the optical routing path and the control parameters of each control node in the optical routing path. Based on the aforementioned control parameters, the initial spatial phase distribution required for the optical signal to propagate along the optical routing path is determined; The spatial phase distribution of the optical signal is adjusted to the initial spatial phase distribution, and the initial spatial phase distribution of the optical signal is adjusted to the first spatial phase distribution according to the first control parameter of the node, and the optical signal is controlled to transmit along the optical routing path based on the first spatial phase distribution.

9. The method according to claim 8, characterized in that, The first control parameter includes a first control phase distribution; The step of adjusting the initial spatial phase distribution of the optical signal to a first spatial phase distribution according to the first control parameter of the node includes: The first spatial phase distribution is obtained by superimposing the first controlled phase distribution and the initial spatial phase distribution.

10. The method according to claim 8, characterized in that, Determining the initial spatial phase distribution required for the optical signal to propagate along the optical routing path based on the control parameters includes: Using the aforementioned control parameters as constraints, the phase gradient parameters required for the optical signal to propagate along the optical routing path are determined, wherein the phase gradient parameters are used to control the transmission direction of the optical signal. The initial spatial phase distribution is determined based on the phase gradient parameters.

11. A computer device, characterized in that, include: The system includes a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the optical routing method according to any one of claims 1 to 4, or the optical routing method according to any one of claims 5 to 7, or the optical routing method according to any one of claims 8 to 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the optical routing method of any one of claims 1 to 4, or the optical routing method of any one of claims 5 to 7, or the optical routing method of any one of claims 8 to 10.

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