A method, apparatus, device, medium, and program product for signal transmission.

Abstract

This invention provides a method, apparatus, device, medium, and program product for signal transmission. The method includes: sending an access response message and uplink measurement signal configuration signaling to a target terminal; receiving uplink measurement signals periodically sent by the target terminal according to the uplink measurement signal configuration signaling; obtaining uplink channel quality information; and instructing the target terminal to report downlink channel quality information; determining the target primary link and target secondary link with the target terminal based on the uplink and downlink channel quality information, and sending primary link configuration signaling of the target primary link to the target terminal; receiving primary link configuration completion signaling sent by the target terminal according to the primary link configuration signaling; and sending link resource configuration signaling to the target terminal through the target primary link. In this invention, the primary and secondary links are determined based on the channel states of the two links, effectively improving resource utilization and transmission reliability.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, apparatus, device, medium and program product for signal transmission. Background Technology

[0002] Power line carrier communication relies on existing power lines to transmit signals, offering the advantage of requiring no additional wiring. However, it is susceptible to noise interference, impedance variations, and signal attenuation in complex power grid environments. While wireless communication technology is flexible in deployment and highly mobile, its signal penetration is limited, and it is easily affected by building obstruction, electromagnetic interference, and multipath effects, leading to unstable coverage.

[0003] In the field of power communication, existing technologies have explored various dual-mode collaborative mechanisms to address communication needs in complex environments. However, existing technologies often employ a combination of high-speed power line communication (HPLC) and high-speed radio frequency (HRF) technologies. These two technologies have significant differences in physical layer waveforms and frame structures, poor signal protocol stack compatibility, high system implementation complexity, and low cross-mode collaboration efficiency. They are difficult to adapt to dynamically changing channel conditions in power Internet of Things (IoT) scenarios, resulting in a high risk of communication link interruption and hindering system stability in complex environments. Summary of the Invention

[0004] This invention provides a method, apparatus, device, medium, and program product for signal transmission to solve the problems of poor protocol stack compatibility and insufficient dynamic channel adaptability in existing dual-mode systems.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide a signal transmission method applied to a management terminal, the management terminal including a first power line carrier communication module and a first wireless communication module, a target terminal including a second power line carrier communication module and a second wireless communication module, wherein a power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module, the method comprising:

[0007] Send an access response message and uplink measurement signal configuration signaling to the target terminal;

[0008] Receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling;

[0009] The uplink measurement signal is detected to obtain uplink channel quality information; and the target terminal is instructed to report downlink channel quality information.

[0010] Based on the uplink channel quality information and the downlink channel quality information, the target primary link and the target secondary link with the target terminal are determined. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link.

[0011] Send the target primary link configuration signaling to the target terminal;

[0012] Receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling;

[0013] Link resource configuration signaling is sent to the target terminal via the target main link.

[0014] Optionally, after sending link resource configuration signaling to the target terminal via the target main link, the method further includes:

[0015] Acquire new uplink channel quality information and downlink channel quality information, and determine a new target primary link based on the new uplink channel quality information and downlink channel quality information, wherein the new target primary link is the other of the power line carrier communication link and the wireless communication link;

[0016] Send the new target primary link reconfiguration primary link signaling to the target terminal;

[0017] Receive the reconfiguration of the main link configuration completed signaling sent by the target terminal according to the reconfiguration of the main link configuration signaling;

[0018] The link resource configuration signaling is sent to the terminal through the new target main link.

[0019] Optionally, a target main link is selected for each target terminal, wherein the target main links selected for different target terminals may be the same or different.

[0020] Optionally, the access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all modulated into orthogonal frequency division multiplexing (OFDM) signals, the uplink measurement signal is an OFDM signal, and the access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all transmitted within a physical layer frame structure of fixed frame length.

[0021] The power line carrier communication link and the wireless communication link use the same physical layer frame structure with the same frame length and the same system frame number at the same time.

[0022] Optionally, after sending link resource configuration signaling to the terminal through the target main link, the method further includes:

[0023] For the target primary link and the target secondary link, respectively, orthogonal frequency division multiplexing (OFDM) signal modulation parameters are generated. Based on the parameters, the data transmitted to the target terminal is modulated into an OFDM signal and transmitted on the target primary link and the target secondary link respectively.

[0024] Optionally, after sending link resource configuration signaling to the terminal through the target main link, the method further includes:

[0025] The orthogonal frequency division multiplexing signals transmitted by the target terminal on the target main link and the target auxiliary link are demodulated, and the demodulated data from the main link and the target auxiliary link are merged.

[0026] Optional, also includes:

[0027] The system receives an access signal sent by a temporary primary link from the target terminal. The temporary primary link and the temporary secondary link satisfy the following conditions: when the power line carrier communication link is a temporary primary link, the wireless communication link is a temporary secondary link; or, when the wireless communication link is a temporary primary link, the power line carrier communication link is a temporary secondary link.

[0028] The access response message and uplink measurement signal configuration signaling are sent to the target terminal through the temporary main link.

[0029] Secondly, embodiments of the present invention provide a signal transmission method applied to a target terminal, wherein the management terminal includes a first power line carrier communication module and a first wireless communication module, a power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module; the target terminal includes a second power line carrier communication module and a second wireless communication module; the method includes:

[0030] Receive the access response message and uplink measurement signal configuration signaling sent by the management terminal;

[0031] According to the uplink measurement signal configuration signaling, the uplink measurement signal is periodically sent to the management terminal;

[0032] Receive an instruction from the management terminal to report downlink channel quality information, and report downlink channel quality information to the management terminal;

[0033] The system receives the main link configuration signaling sent by the management terminal and configures the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal based on the uplink channel quality information and the downlink channel quality information, and the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link;

[0034] Send a main link configuration completion signal to the management terminal;

[0035] The link resource configuration signaling sent by the management terminal is received through the target main link.

[0036] Optionally, before sending the access signal to the management terminal via the temporary main link, the method further includes:

[0037] Simultaneously, downlink broadcast signals of the power line carrier communication link and the wireless communication link are detected, and one of the links is selected as the temporary main link based on the channel quality.

[0038] Optionally, the system receives a new target primary link reconfiguration primary link configuration signaling sent by the management terminal, and reconfigures the new primary link according to the reconfiguration primary link configuration signaling.

[0039] Send a reconfiguration primary link configuration completion signal to the management terminal;

[0040] The link resource configuration signaling sent by the management terminal is received through the new target main link.

[0041] Optional, also includes:

[0042] An access signal is sent to the management terminal via a temporary main link, wherein the temporary main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is a temporary auxiliary link.

[0043] Thirdly, embodiments of the present invention provide a management terminal, the management terminal including a first power line carrier communication module and a first wireless communication module, the target terminal including a second power line carrier communication module and a second wireless communication module, a power line carrier communication link being formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link being formed between the first wireless communication module and the second wireless communication module, the management terminal further including:

[0044] The first sending module is used to send an access response message and uplink measurement signal configuration signaling to the target terminal;

[0045] The first receiving module is used to receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling;

[0046] The first detection module is used to detect the uplink measurement signal to obtain uplink channel quality information; and instruct the target terminal to report downlink channel quality information.

[0047] The first processing module is configured to determine the target primary link and the target secondary link with the target terminal based on the uplink channel quality information and the downlink channel quality information. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link.

[0048] The second sending module is used to send the target main link configuration signaling to the target terminal;

[0049] The second receiving module is used to receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling;

[0050] The third sending module is used to send link resource configuration signaling to the target terminal through the target main link.

[0051] Fourthly, embodiments of the present invention provide a target terminal, wherein the management terminal includes a first power line carrier communication module and a first wireless communication module, a power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module, and the target terminal further includes:

[0052] The third receiving module is used to receive the access response message and uplink measurement signal configuration signaling sent by the management terminal;

[0053] The fourth sending module is used to periodically send uplink measurement signals to the management terminal according to the configuration signaling of the uplink measurement signal;

[0054] The second processing module is used to receive the instruction sent by the management terminal to report downlink channel quality information, and to report the downlink channel quality information to the management terminal;

[0055] The third processing module is used to receive the main link configuration signaling sent by the management terminal, and configure the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal according to the uplink channel quality information and the downlink channel quality information, and the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link;

[0056] The fifth sending module is used to send a main link configuration completion signaling to the management terminal;

[0057] The fourth receiving module is used to receive the link resource configuration signaling sent by the management terminal through the target main link.

[0058] Fifthly, embodiments of the present invention provide an electronic device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the signal transmission method as described in any one of the first aspects, or the steps of the signal transmission method as described in any one of the second aspects.

[0059] In a sixth aspect, embodiments of the present invention provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the signal transmission method as described in any one of the first aspects, or the steps of the signal transmission method as described in any one of the second aspects.

[0060] In a seventh aspect, embodiments of the present invention provide a computer program product including computer instructions that, when executed by a processor, implement the signal transmission method as described in any one of the first aspects, or the steps in the signal transmission method as described in any one of the second aspects.

[0061] In this invention, by establishing a combination of power line carrier communication links and wireless communication links, and dynamically selecting a primary and secondary link mapping strategy based on uplink and downlink channel quality information, the primary and secondary links can be flexibly switched, thereby improving link reliability in complex environments. By optimizing link selection and configuration, available communication resources can be utilized to the maximum extent, thereby improving data transmission efficiency and speed, reducing latency, enhancing adaptability to environmental changes, and reducing the risk of communication interruption due to link quality degradation. Attached Figure Description

[0062] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0063] Figure 1 This is a flowchart illustrating the application of a signal transmission method provided in an embodiment of the present invention to a management terminal;

[0064] Figure 2 This is a schematic diagram of a communication network system for a signal transmission method provided in an embodiment of the present invention;

[0065] Figure 3 This is a schematic diagram of a network device communication module for a signal transmission method provided in an embodiment of the present invention;

[0066] Figure 4 This is a dual-link frame structure diagram of a signal transmission method provided in an embodiment of the present invention;

[0067] Figure 5 This is a flowchart illustrating the primary and secondary link configuration of a signal transmission method provided in an embodiment of the present invention.

[0068] Figure 6 This is a flowchart illustrating the primary and secondary link switching configuration of a signal transmission method provided in an embodiment of the present invention.

[0069] Figure 7 This is a diversity transmission flowchart of a signal transmission method provided in an embodiment of the present invention;

[0070] Figure 8 This is a schematic diagram of the diversity scheduling information field of a signal transmission method provided in an embodiment of the present invention;

[0071] Figure 9 This is a schematic diagram of downlink dynamic scheduling diversity resources for a signal transmission method provided in an embodiment of the present invention;

[0072] Figure 10 This is a schematic diagram of uplink dynamic scheduling diversity resources for a signal transmission method provided in an embodiment of the present invention;

[0073] Figure 11 This is a schematic diagram of downlink static scheduling diversity resources for a signal transmission method provided in an embodiment of the present invention;

[0074] Figure 12 This is a schematic diagram of uplink static scheduling diversity resources for a signal transmission method provided in an embodiment of the present invention;

[0075] Figure 13This is a schematic diagram of a set-merging method for signal transmission provided in an embodiment of the present invention;

[0076] Figure 14 This is a schematic diagram of a set-merging method for another signal transmission method provided in an embodiment of the present invention;

[0077] Figure 15 This is a flowchart illustrating the application of a signal transmission method provided in an embodiment of the present invention to a target terminal;

[0078] Figure 16 This is a flowchart of the primary and secondary link switching configuration of another signal transmission method provided in this embodiment of the invention;

[0079] Figure 17 This is a schematic diagram of a management terminal provided in an embodiment of the present invention;

[0080] Figure 18 This is a schematic diagram of the structure of a target terminal provided in an embodiment of the present invention;

[0081] Figure 19 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0082] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] Please refer to Figure 1 This invention provides a signal transmission method applied to a management terminal. The management terminal includes a first power line carrier communication module and a first wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The method includes:

[0084] Step 11: Send an access response message and uplink measurement signal configuration signaling to the target terminal;

[0085] In this embodiment of the invention, optionally, it also includes:

[0086] The system receives an access signal sent by a temporary primary link from the target terminal. The temporary primary link and the temporary secondary link satisfy the following conditions: when the power line carrier communication link is a temporary primary link, the wireless communication link is a temporary secondary link; or, when the wireless communication link is a temporary primary link, the power line carrier communication link is a temporary secondary link.

[0087] The access response message and uplink measurement signal configuration signaling are sent to the target terminal through the temporary main link.

[0088] Please refer to Figure 2 and Figure 3 In this embodiment of the invention, both the management terminal and the target terminal include a power line carrier communication module and a wireless communication module. The two modules communicate using a unified orthogonal frequency division multiplexing (OFDM) baseband protocol and different analog front-end modules. For each target terminal, the power line carrier link and the wireless link are mapped as a primary link and an auxiliary link, respectively. The management terminal determines the primary and auxiliary mapping relationship of the target terminal based on the channel status of the target terminal on the two links. For each target terminal, the power line carrier link and the wireless link are mapped as a logical primary link and an auxiliary link, respectively. The primary link can be used for access and control information transmission, while both the primary and auxiliary links can be used for service data transmission and channel measurement. The target terminal needs to continuously monitor the control information on its primary link. By flexibly switching between the primary and auxiliary links, the link reliability in complex environments is improved.

[0089] Specifically, the communication protocol adopts a fixed-frame-length Time Division Duplex (TDD) communication mechanism. For the Media Access Control (MAC) layer, the wireless link and the power line carrier link share a set of timing control, and the physical layer handles the actual frame boundary alignment error of the two carrier signals.

[0090] In some embodiments, a fixed-frame-length TDD frame structure is as follows: Figure 4 As shown, the two links include downlink and uplink frame portions. The cell-level signals, channels, and downlink broadcast messages are in the same time-frequency domain. The cell-level signals and channels include downlink synchronization signals, downlink reference signals, and uplink access channels. The downlink broadcast messages include system information messages and control information messages. By using a fixed frame length, the signal transmission and reception times are relatively fixed. When receiving data, it is not always necessary to detect the preamble or synchronization signal before demodulating the data. The MAC does not need to implement collision backoff, and the scheduling mechanism is relatively simple. Both links use the same frame structure, which facilitates the management of baseband transmission resources. By cooperating in the same frame of the two links, the real-time transmission can also be guaranteed.

[0091] By using a unified OFDM baseband protocol and a fixed frame length TDD mechanism, efficient integration of power line carrier and wireless dual-mode links is achieved. The unified frame timing management method of the MAC layer improves the real-time performance of service transmission and reduces the complexity of cross-mode cooperation.

[0092] In this embodiment of the invention, during the access phase and connection phase of the target terminal, the management terminal can configure the primary and secondary link mapping of the target terminal to match the channel status of each link. Please refer to... Figure 5 Before sending a signal to the management terminal, the target terminal first detects the downlink broadcast signals of the wireless link and the power line carrier link simultaneously, selects the link with better channel quality as the temporary main link, and sends an access signal on the temporary main link. The management terminal sends an access response message and uplink measurement signal configuration signaling to the target terminal through the temporary main link. The setting of the temporary main link can reduce data transmission latency and improve user experience.

[0093] Step 12: Receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling;

[0094] In this embodiment of the invention, the target terminal periodically sends uplink measurement signals, enabling the network to acquire the terminal's signal quality, latency, and other important parameters in real time. This allows for dynamic monitoring of the network status, enabling dynamic adjustments based on actual signal quality and user needs to optimize resource allocation and network configuration, improve overall network performance, and enhance user experience.

[0095] Step 13: Detect the uplink measurement signal to obtain uplink channel quality information; and instruct the target terminal to report downlink channel quality information;

[0096] In this embodiment of the invention, a bidirectional feedback mechanism for uplink and downlink channel quality is formed by instructing the target terminal to report downlink channel quality information. Based on the uplink and downlink channel quality information, the intelligent dynamic adjustment of the primary and secondary links can be realized in the future, optimizing network configuration and resource allocation, improving the network's adaptability, and enhancing the network's reliability and stability.

[0097] Step 14: Based on the uplink channel quality information and the downlink channel quality information, determine the target primary link and the target secondary link with the target terminal. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link.

[0098] In this embodiment of the invention, by comprehensively analyzing uplink and downlink channel quality information, the optimal target main link is intelligently determined, thereby ensuring that the communication quality reaches the best state under different environments and conditions, and improving the reliability and stability of data transmission; by reasonably configuring the main link and auxiliary link, the network can make more efficient use of available resources, reduce unnecessary interference and congestion, thereby improving the overall network performance.

[0099] Step 15: Send the target primary link configuration signaling to the target terminal;

[0100] In this embodiment of the invention, by sending main link configuration signaling to the target terminal, the target main link is quickly configured and established, reducing the link establishment time and improving communication efficiency.

[0101] Step 16: Receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling;

[0102] In this embodiment of the invention, by receiving the main link configuration completion signaling sent by the target terminal, it is confirmed whether the main link configuration is successful, ensuring that the target terminal has been correctly connected to the specified main link, thereby laying the foundation for subsequent data transmission; and confirming that subsequent transmission can be carried out through the target main link, the user can start data transmission faster, reduce latency, increase transmission rate, thereby improving the user's overall experience and meeting the demand for high-quality communication.

[0103] Step 17: Send link resource configuration signaling to the target terminal through the target main link.

[0104] In this embodiment of the invention, by selecting a target primary link, available bandwidth and resources can be utilized more effectively, ensuring more reasonable resource allocation during data transmission, thereby improving overall network performance. Furthermore, the selection of the target primary link is dynamic and can be adjusted according to real-time channel quality and user needs. This flexibility allows the network to adapt to different environments and application scenarios, meeting diverse communication requirements. The target primary link can be used in conjunction with secondary links, quickly switching to the secondary link when the primary link fails or its performance degrades, thus ensuring communication continuity and stability. Moreover, by sending link resource configuration signaling to the target terminal through the target primary link, the network can dynamically allocate and adjust link resources according to the current channel quality and user needs, enabling the target terminal to obtain necessary resource information and achieving efficient data transmission.

[0105] In some embodiments, the specific process for determining the primary and secondary links during the access phase is as follows:

[0106] The target terminal's physical layer detects the downlink synchronization signal according to the signal location described in the protocol, thereby obtaining the frame start positions of the radio link and the power line carrier link and performing frame synchronization. After completing frame synchronization, the terminal uses the downlink reference signal to perform channel estimation, obtains the downlink channel quality information of the two links, selects the link with a higher signal-to-interference-plus-noise ratio as the temporary master link, and demodulates the system information messages of the temporary master link. The system information includes basic cell information, uplink access channel information, and demodulation information required for control information messages.

[0107] The target terminal sends an uplink access signal at the uplink access channel position of the uplink frame of the temporary main link, and begins to receive and demodulate the control information message of the temporary main link. The control information message is used by the management end to instruct the scheduling of uplink and downlink dynamic data, uplink and downlink signaling, terminal measurement reporting and feedback, etc.

[0108] After the management terminal detects the uplink access signal, it records the link as the temporary main link of the target terminal. At this time, the management terminal needs to collect the quality of the uplink and downlink channels on the two links of the target terminal to determine the main and auxiliary link mapping of the target terminal.

[0109] The management terminal uses the dynamic scheduling function of the temporary main link (dynamic scheduling means that the terminal first demodulates the control information and then receives or sends the corresponding data signal according to the scheduling information in the control information) to send access response messages, configuration signaling of uplink measurement signals, periodic scheduling of channel quality measurement reports, and link control instructions such as uplink transmission advance and power control to the target terminal.

[0110] The target terminal periodically measures the downlink reference signals of the two links and begins to periodically transmit the uplink measurement signals of the two links after receiving the signaling.

[0111] The management terminal sends a main link configuration signaling to the terminal on the temporary main link. The main link and the temporary main link are not necessarily the same. The management terminal makes a comprehensive decision based on the uplink and downlink channel status and transmission resource idle status of the two links. For example, for a certain target terminal, the downlink channel quality of the wireless link is better, so the terminal initiates access on the wireless link. However, the management terminal can no longer allocate more resources on the wireless link to the terminal for subsequent continuous control information transmission, so it configures the main link of the terminal as a power line carrier link.

[0112] After receiving the main link configuration signaling, if the main link and the temporary main link are inconsistent, the target terminal stops receiving and demodulating the control information messages of the temporary main link, starts receiving and demodulating the control information messages of the main link, and sends the main link configuration completion signaling on the main link uplink.

[0113] The management terminal sends other link resource configuration signaling required for the connection state on the main link, such as static scheduling configuration and measurement signal reconfiguration.

[0114] In this embodiment of the invention, by establishing a combination of power line carrier communication links and wireless communication links, and dynamically selecting a primary and secondary link mapping strategy based on uplink channel quality information and downlink channel quality information, the primary and secondary links can be flexibly switched, thereby improving link reliability in complex environments. By optimizing link selection and configuration, available communication resources can be utilized to the maximum extent, thereby improving data transmission efficiency and speed, reducing latency, enhancing adaptability to environmental changes, and reducing the risk of communication interruption due to link quality degradation.

[0115] Please refer to Figure 6 In this embodiment of the invention, optionally, after sending link resource configuration signaling to the target terminal through the target main link, the method further includes:

[0116] Acquire new uplink channel quality information and downlink channel quality information, and determine a new target primary link based on the new uplink channel quality information and downlink channel quality information, wherein the new target primary link is the other of the power line carrier communication link and the wireless communication link;

[0117] Send the new target primary link reconfiguration primary link signaling to the target terminal;

[0118] Receive the reconfiguration of the main link configuration completed signaling sent by the target terminal according to the reconfiguration of the main link configuration signaling;

[0119] The link resource configuration signaling is sent to the terminal through the new target main link.

[0120] In this embodiment of the invention, when the management terminal discovers that the channel state of the current target primary link is poor based on the new uplink and downlink channel quality information, a new target primary link can be redefined. The new target primary link is the other of the power line carrier communication link and the wireless communication link. By acquiring new uplink and downlink channel quality information in real time, the target primary link is dynamically adjusted and optimized to ensure that the link with the best performance is selected for communication, which can effectively improve the efficiency and stability of data transmission. Furthermore, a reconfiguration primary link signaling for the new target primary link is sent to the target terminal. The target terminal immediately stops detecting the original primary link control information and begins detecting the new primary link control information, enabling the network to flexibly adjust resource configuration according to the current channel state, ensuring optimal utilization of bandwidth and other resources. Through the combination of power line carrier communication link and wireless communication link, the system can flexibly switch between different communication methods to meet diverse application needs.

[0121] In some embodiments, during the connected state, if the management terminal determines that the current primary link channel quality of the target terminal has become worse than that of the secondary link, or that the current primary link resources are scarce and need to free up transmission resources for other target terminals with higher priority, it can send a primary link reconfiguration signaling on the current primary link to notify the target terminal to switch. In addition, if the current primary link channel quality is so bad that the target terminal cannot demodulate control information messages, the target terminal can also send an access signal on the current secondary link to inform the management terminal of this status.

[0122] In this embodiment of the invention, optionally, a target main link is selected for each target terminal, wherein the target main links selected for different target terminals may be the same or different.

[0123] In this embodiment of the invention, the primary and secondary links can be flexibly mapped. That is, the primary and secondary link mappings for different target terminals belonging to the same management terminal can be inconsistent, and the primary and secondary link mapping for the same target terminal can be variable during the target terminal's connected state. Through flexible mapping of primary and secondary links, the link configuration can be dynamically adjusted according to the specific needs and environmental conditions of different terminals, improving overall communication efficiency, optimizing resource allocation, avoiding resource waste, and enhancing the utilization efficiency of network resources. The variable primary and secondary link mapping for the same terminal during the connected state means that the network can respond in real time to changes in channel quality and user needs, ensuring that the best link selection is always provided under different connected states, enhancing network adaptability, improving the network's intelligence level, and automatically adapting to changing environments and needs.

[0124] In this embodiment of the invention, optionally, the access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all modulated into orthogonal frequency division multiplexing (OFDM) signals, the uplink measurement signal is an OFDM signal, and the access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all transmitted within a physical layer frame structure of fixed frame length;

[0125] The power line carrier communication link and the wireless communication link use the same physical layer frame structure with the same frame length and the same system frame number at the same time.

[0126] In this embodiment of the invention, using the same fixed frame length can reduce transmission delay and processing overhead caused by inconsistent frame lengths, thereby improving the overall data transmission efficiency and helping to transmit signaling and data quickly and stably. Furthermore, the fixed frame length design simplifies the implementation of the protocol, and network devices do not need to perform complex frame parsing and processing when handling different types of signaling, thus reducing the complexity of the system.

[0127] In this embodiment of the invention, optionally, after sending link resource configuration signaling to the terminal through the target main link, the method further includes:

[0128] For the target primary link and the target secondary link, respectively, orthogonal frequency division multiplexing (OFDM) signal modulation parameters are generated. Based on the parameters, the data transmitted to the target terminal is modulated into an OFDM signal and transmitted on the target primary link and the target secondary link respectively.

[0129] In this embodiment of the invention, optionally, after sending link resource configuration signaling to the terminal through the target main link, the method further includes:

[0130] The orthogonal frequency division multiplexing signals transmitted by the target terminal on the target main link and the target auxiliary link are demodulated, and the demodulated data from the main link and the target auxiliary link are merged.

[0131] In this embodiment of the invention, the same data content is modulated onto the primary and secondary links for transmission, such as... Figure 7 As shown, the transmitting end generates physical layer OFDM signals for two links respectively. The OFDM signals of the two links can use different modulation and coding schemes (MCS), subcarrier numbers, and coding redundancy versions. The receiving end demodulates the OFDM signals received from the two links respectively, and combines the demodulation results at the physical layer. The combined data is reported to the MAC layer. The transmitting end is either the management end or the target terminal, and the receiving end is either the management end or the target terminal. The generation parameters of the OFDM signals for the two links are determined by the management end and indicated to the target terminal through configuration signaling or control information. The fields of the configuration signaling or control information must include a radio link scheduling identifier, a power line carrier link scheduling identifier, and scheduling information for each of the two links. The scheduling information includes, but is not limited to, MCS, frequency domain resource indication, time domain field indication, redundancy version number, and transmission mode indication. Figure 8 As shown, in order to ensure the real-time performance of the transmission, a diversity transmission needs to be completed within the same system frame. This can effectively reduce the risk of data loss caused by network jitter or delay, ensure that the receiving end can obtain complete data packets in a timely manner, and improve the reliability of communication.

[0132] In this embodiment of the invention, a method for diversity transmission using wireless links and power line carrier links is employed. The modulation scheme and resource location of the redundant transmission signals of the two links are determined based on their respective channel states. By using differentiated diversity transmission and optimizing modulation and coding parameters in combination with the differences in the channel states of the two links, the resource utilization and transmission reliability are effectively improved compared with existing dual-mode redundancy schemes.

[0133] In some embodiments, diversity transmission using dual-mode links can take two forms: dynamic scheduling and static scheduling. Specifically, for dynamic scheduling, downlink dynamic scheduling of diversity resources includes... Figure 9 As shown, the target terminal first demodulates the control information on the main link, and then receives or transmits diversity signals on the main and auxiliary links respectively in the downlink frames according to the diversity scheduling information in the control information; for uplink dynamically scheduled diversity resources, such as... Figure 10 As shown, the target terminal first demodulates the control information on the main link, and then receives or transmits diversity signals on the main and auxiliary links respectively in the uplink frame according to the diversity scheduling information in the control information; as for static scheduling, specifically, for downlink static scheduling diversity resources as... Figure 11 As shown, the management terminal pre-configures periodic data signal resources and their diversity scheduling information for the target terminal via signaling. The target terminal can repeatedly receive or transmit diversity signals on the primary and secondary links at specified time-frequency domain locations. For uplink statically scheduled diversity resources, such as... Figure 12 As shown, the management terminal pre-configures periodic data signal resources and diversity scheduling information for the target terminal via signaling. The target terminal can repeatedly receive or send diversity signals on the primary and secondary links at a specified time-frequency domain location.

[0134] In some embodiments, when using a combination merging method, if the OFDM frequency domain data transmitted by two links are completely identical (i.e., the encoded bit data, MCS, and number of subcarriers are the same), even if the subcarrier positions and time domain positions are different, the receiver physical layer can still use the Maximum Ratio Combining (MRC) algorithm to combine the frequency domain received data from the two links during equalization. Figure 13 As shown, the MRC algorithm is:

[0135] ;

[0136] in, , The results are channel estimation for wireless links and power line carrier links, respectively. , They are frequency domain received data for wireless links and power line carrier links, respectively.

[0137] In some embodiments, when using a combination merging method, if the OFDM frequency domain data transmitted by two links are different, the physical layer at the receiving end can perform soft bit merging during decoding, such as... Figure 14 As shown, the received signals from the two links are processed independently until the soft bit vector of the received data from the wireless link is obtained after the demapping module. Received data soft bit vectors of power line carrier links N and M represent the number of bits after encoding for each of the two links. Combining soft bits during decoding can reduce the code rate or improve the soft bit signal-to-interference-plus-noise ratio, thereby improving transmission reliability.

[0138] In this embodiment of the invention, by using differentiated diversity transmission and optimizing modulation and coding parameters based on the differences in dual-link channel states, resource utilization and transmission reliability are effectively improved compared to existing dual-mode redundancy schemes. Furthermore, diversity transmission ensures that data is transmitted in the shortest possible time, meeting the needs of real-time applications such as voice and video communication, reducing latency, and completing diversity transmission within a fixed time window enhances the stability of the system under different network conditions, ensuring fast and stable data transmission.

[0139] Please refer to Figure 15 This invention provides a signal transmission method applied to a target terminal. The management terminal includes a first power line carrier communication module and a first wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. The method includes:

[0140] Step 151: Receive the access response message and uplink measurement signal configuration signaling sent by the management terminal;

[0141] In this embodiment of the invention, during the access phase and connection state of the target terminal, the management terminal can configure the primary and secondary link mapping of the target terminal to match the channel status of each link. The management terminal sends access response messages and uplink measurement signal configuration signaling to the target terminal through the temporary primary link. The setting of the temporary primary link can reduce data transmission delay and improve user experience.

[0142] In this embodiment of the invention, optionally, before receiving the access response message and uplink measurement signal configuration signaling sent by the management terminal, the method further includes: sending an access signal to the management terminal through a temporary main link, wherein the temporary main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is a temporary auxiliary link.

[0143] In this embodiment of the invention, optionally, before sending the access signal to the management terminal via the temporary main link, the method further includes:

[0144] Simultaneously, downlink broadcast signals of the power line carrier communication link and the wireless communication link are detected, and one of the links is selected as the temporary main link based on the channel quality.

[0145] In the embodiments of this invention, please refer to Figure 5 Before sending a signal to the management terminal, the target terminal first detects the downlink broadcast signals of the wireless link and the power line carrier link simultaneously, selects the link with better channel quality as the temporary main link, and sends an access signal on the temporary main link. The management terminal sends an access response message and uplink measurement signal configuration signaling to the target terminal through the temporary main link. The setting of the temporary main link can reduce data transmission latency and improve user experience.

[0146] Please refer to Figure 2 and Figure 3 In this embodiment of the invention, both the management terminal and the target terminal include a power line carrier communication module and a wireless communication module. The two modules communicate using a unified orthogonal frequency division multiplexing (OFDM) baseband protocol and different analog front-end modules. For each target terminal, the power line carrier link and the wireless link are mapped as a primary link and an auxiliary link, respectively. The management terminal determines the primary and auxiliary mapping relationship of the target terminal based on the channel status of the target terminal on the two links. For each target terminal, the power line carrier link and the wireless link are mapped as a logical primary link and an auxiliary link, respectively. The primary link can be used for access and control information transmission, while both the primary and auxiliary links can be used for service data transmission and channel measurement. The target terminal needs to continuously monitor the control information on its primary link. By flexibly switching between the primary and auxiliary links, the link reliability in complex environments is improved.

[0147] Step 152: Configure signaling according to the uplink measurement signal and periodically send the uplink measurement signal to the management terminal;

[0148] In this embodiment of the invention, the target terminal periodically sends uplink measurement signals, enabling the network to acquire the terminal's signal quality, latency, and other important parameters in real time. This allows for dynamic monitoring of the network status, enabling dynamic adjustments based on actual signal quality and user needs to optimize resource allocation and network configuration, improve overall network performance, and enhance user experience.

[0149] Step 153: Receive the instruction from the management terminal to report downlink channel quality information, and report the downlink channel quality information to the management terminal;

[0150] In this embodiment of the invention, a bidirectional feedback mechanism for uplink and downlink channel quality is formed. Based on uplink and downlink channel quality information, the intelligent dynamic adjustment of the primary and secondary links can be realized, network configuration and resource allocation can be optimized, the network's adaptability can be improved, and the reliability and stability of the network can be enhanced.

[0151] Step 154: Receive the main link configuration signaling sent by the management terminal, and configure the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal based on the uplink channel quality information and the downlink channel quality information, the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link;

[0152] In this embodiment of the invention, the management terminal comprehensively analyzes the uplink and downlink channel quality information to intelligently determine the optimal target main link, thereby ensuring that the communication quality reaches the best state under different environments and conditions, and improving the reliability and stability of data transmission. By reasonably configuring the main link and auxiliary link, the network can make more efficient use of available resources, reduce unnecessary interference and congestion, and thus improve the overall network performance.

[0153] Step 155: Send a main link configuration completion signaling to the management terminal;

[0154] In this embodiment of the invention, by sending a main link configuration completion signaling, it is ensured that a correct connection has been made to the designated main link, thereby laying the foundation for subsequent data transmission; and it is confirmed that subsequent transmission can be carried out through the target main link, allowing users to start data transmission faster, reducing latency, increasing transmission rate, thereby improving the overall user experience and meeting the demand for high-quality communication.

[0155] Step 156: Receive the link resource configuration signaling sent by the management terminal through the target main link.

[0156] In this embodiment of the invention, by selecting a target primary link, available bandwidth and resources can be utilized more effectively, ensuring more reasonable resource allocation during data transmission, thereby improving overall network performance. Furthermore, the selection of the target primary link is dynamic and can be adjusted according to real-time channel quality and user needs. This flexibility allows the network to adapt to different environments and application scenarios, meeting diverse communication requirements. The target primary link can be used in conjunction with secondary links, quickly switching to the secondary link when the primary link fails or its performance degrades, thus ensuring communication continuity and stability. Moreover, by sending link resource configuration signaling to the target terminal through the target primary link, the network can dynamically allocate and adjust link resources according to the current channel quality and user needs, enabling the target terminal to obtain necessary resource information and achieving efficient data transmission.

[0157] In this embodiment of the invention, optionally, the management terminal receives a new target primary link reconfiguration primary link configuration signaling and reconfigures the new primary link according to the reconfiguration primary link configuration signaling;

[0158] Send a reconfiguration primary link configuration completion signal to the management terminal;

[0159] The link resource configuration signaling sent by the management terminal is received through the new target main link.

[0160] In the embodiments of this invention, please refer to Figure 16 When the management terminal detects that the current target primary link's channel status is poor based on the new uplink and downlink channel quality information, it can re-determine a new target primary link, which is the other of the power line carrier communication link and the wireless communication link. By acquiring new uplink and downlink channel quality information in real time, the target primary link is dynamically adjusted and optimized to ensure that the link with the best performance is selected for communication, effectively improving the efficiency and stability of data transmission. After the target terminal accesses the new primary link signal, the target terminal begins to detect the new primary link control information and stops detecting the original primary link control information after the primary link is reconfigured, and completes the configuration of the new primary link. This allows the network to flexibly adjust resource configuration according to the current channel status, ensuring optimal utilization of bandwidth and other resources. Through the combination of power line carrier communication links and wireless communication links, the system can flexibly switch between different communication methods to meet diverse application needs.

[0161] Please refer to Figure 17 This invention provides a management terminal, which includes a first power line carrier communication module and a first wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The management terminal further includes:

[0162] The first sending module 171 is used to send an access response message and uplink measurement signal configuration signaling to the target terminal;

[0163] The first receiving module 172 is used to receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling;

[0164] The first detection module 173 is used to detect the uplink measurement signal to obtain uplink channel quality information; and instruct the target terminal to report downlink channel quality information.

[0165] The first processing module 174 is used to determine the target primary link and the target secondary link with the target terminal based on the uplink channel quality information and the downlink channel quality information. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link.

[0166] The second sending module 175 is used to send the target main link configuration signaling to the target terminal;

[0167] The second receiving module 176 is used to receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling;

[0168] The third sending module 177 is used to send link resource configuration signaling to the target terminal through the target main link.

[0169] The management terminal provided in this embodiment of the invention can achieve Figure 1 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0170] Please refer to Figure 18 This invention provides a target terminal, wherein the management terminal includes a first power line carrier communication module and a first wireless communication module, a power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module, and the target terminal further includes:

[0171] The third receiving module 181 is used to receive the access response message and uplink measurement signal configuration signaling sent by the management terminal;

[0172] The fourth transmitting module 182 is used to periodically transmit uplink measurement signals to the management terminal according to the uplink measurement signal configuration signaling;

[0173] The second processing module 183 is used to receive an instruction from the management terminal to report downlink channel quality information, and to report downlink channel quality information to the management terminal.

[0174] The third processing module 184 is used to receive the main link configuration signaling sent by the management terminal, and configure the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal according to the uplink channel quality information and the downlink channel quality information, and the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link;

[0175] The fifth sending module 185 is used to send a main link configuration completion signaling to the management terminal;

[0176] The fourth receiving module 186 is used to receive the link resource configuration signaling sent by the management terminal through the target main link.

[0177] The target terminal provided in this embodiment of the invention can achieve Figure 15 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0178] This invention provides an electronic device 190, see [link to documentation]. Figure 19 As shown, Figure 19 This is a schematic block diagram of an electronic device 190 according to an embodiment of the present invention, including a processor 191, a memory 192, and a program or instructions stored in the memory 192 and executable on the processor 191. When the program or instructions are executed by the processor, they implement the steps of any signal transmission method of the present invention.

[0179] This invention provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements various processes of the signal transmission method described in any of the above embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0180] This application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the above-described... Figure 1 or Figure 15 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0181] Computer-readable media include both permanent and non-permanent, removable and non-removable media, which can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0182] It should be noted that the collection, gathering, updating, analysis, processing, use, transmission, and storage of user personal information involved in this disclosed technical solution all comply with relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. Necessary measures are taken to prevent unauthorized access to user personal information data and to safeguard user personal information security and network security.

[0183] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0184] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0185] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a service classification device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0186] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for signal transmission, characterized in that, The method is applied to a management terminal, which includes a first power line carrier communication module and a first wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The method includes: Send an access response message and uplink measurement signal configuration signaling to the target terminal; Receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling; The uplink measurement signal is detected to obtain uplink channel quality information; and the target terminal is instructed to report downlink channel quality information. Based on the uplink channel quality information and the downlink channel quality information, the target primary link and the target secondary link with the target terminal are determined. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link. Send the target primary link configuration signaling to the target terminal; Receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling; Link resource configuration signaling is sent to the target terminal via the target main link.

2. The signal transmission method according to claim 1, characterized in that, After sending link resource configuration signaling to the target terminal via the target main link, the method further includes: Acquire new uplink channel quality information and downlink channel quality information, and determine a new target primary link based on the new uplink channel quality information and downlink channel quality information, wherein the new target primary link is the other of the power line carrier communication link and the wireless communication link; Send the new target primary link reconfiguration primary link signaling to the target terminal; Receive the reconfiguration of the main link configuration completed signaling sent by the target terminal according to the reconfiguration of the main link configuration signaling; The link resource configuration signaling is sent to the terminal through the new target main link.

3. The signal transmission method according to claim 1, characterized in that, The target main link is selected for each target terminal, wherein the target main links selected for different target terminals are the same or different.

4. The signal transmission method according to claim 1, characterized in that, The access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all modulated into orthogonal frequency division multiplexing (OFDM) signals. The uplink measurement signal is an OFDM signal. The access response message, the uplink measurement signal configuration signaling, the main link configuration signaling, the main link configuration completion signaling, and the link resource configuration signaling are all transmitted within a physical layer frame structure with a fixed frame length. The power line carrier communication link and the wireless communication link use the same physical layer frame structure with the same frame length and the same system frame number at the same time.

5. The signal transmission method according to claim 1, characterized in that, After sending link resource configuration signaling to the terminal via the target main link, the method further includes: For the target primary link and the target secondary link, respectively, orthogonal frequency division multiplexing (OFDM) signal modulation parameters are generated. Based on the parameters, the data transmitted to the target terminal is modulated into an OFDM signal and transmitted on the target primary link and the target secondary link respectively.

6. The signal transmission method according to claim 5, characterized in that, After sending link resource configuration signaling to the terminal via the target main link, the method further includes: The orthogonal frequency division multiplexing signals transmitted by the target terminal on the target main link and the target auxiliary link are demodulated, and the demodulated data from the main link and the target auxiliary link are merged.

7. The signal transmission method according to claim 1, characterized in that, Also includes: The system receives an access signal sent by a temporary primary link from the target terminal. The temporary primary link and the temporary secondary link satisfy the following conditions: when the power line carrier communication link is a temporary primary link, the wireless communication link is a temporary secondary link; or, when the wireless communication link is a temporary primary link, the power line carrier communication link is a temporary secondary link. The temporary main link is used to send an access response message, uplink measurement signal configuration signaling, and main link configuration signaling to the target terminal.

8. A method for signal transmission, characterized in that, The method is applied to a target terminal, wherein the management terminal includes a first power line carrier communication module and a first wireless communication module, the target terminal includes a second power line carrier communication module and a second wireless communication module, a power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. Receive the access response message and uplink measurement signal configuration signaling sent by the management terminal; According to the uplink measurement signal configuration signaling, the uplink measurement signal is periodically sent to the management terminal; Receive an instruction from the management terminal to report downlink channel quality information, and report downlink channel quality information to the management terminal; The system receives the main link configuration signaling sent by the management terminal and configures the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal based on the uplink channel quality information and the downlink channel quality information, and the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link; Send a main link configuration completion signal to the management terminal; The link resource configuration signaling sent by the management terminal is received through the target main link.

9. The signal transmission method according to claim 8, characterized in that, Receive the new target primary link reconfiguration primary link configuration signaling sent by the management terminal, and reconfigure the new primary link according to the reconfiguration primary link configuration signaling; Send a reconfiguration primary link configuration completion signal to the management terminal; The link resource configuration signaling sent by the management terminal is received through the new target main link.

10. The signal transmission method according to claim 8, characterized in that, Also includes: An access signal is sent to the management terminal via a temporary main link, wherein the temporary main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is a temporary auxiliary link.

11. The signal transmission method according to claim 10, characterized in that, Before sending the access signal to the management terminal via the temporary main link, the process also includes: Simultaneously, downlink broadcast signals of the power line carrier communication link and the wireless communication link are detected, and one of the links is selected as the temporary main link based on the channel quality.

12. A management terminal, characterized in that, The management terminal includes a first power line carrier communication module and a first wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module. A wireless communication link is formed between the first wireless communication module and the second wireless communication module. The management terminal also includes: The first sending module is used to send an access response message and uplink measurement signal configuration signaling to the target terminal; The first receiving module is used to receive the uplink measurement signal periodically sent by the target terminal according to the uplink measurement signal configuration signaling; The first detection module is used to detect the uplink measurement signal to obtain uplink channel quality information; and instruct the target terminal to report downlink channel quality information. The first processing module is configured to determine the target primary link and the target secondary link with the target terminal based on the uplink channel quality information and the downlink channel quality information. The target primary link and the target secondary link satisfy the following conditions: when the power line carrier communication link is the target primary link, the wireless communication link is the target secondary link; or, when the wireless communication link is the target primary link, the power line carrier communication link is the target secondary link. The second sending module is used to send the target main link configuration signaling to the target terminal; The second receiving module is used to receive the main link configuration completion signaling sent by the target terminal according to the main link configuration signaling; The third sending module is used to send link resource configuration signaling to the target terminal through the target main link.

13. A target terminal, characterized in that, The management terminal includes a first power line carrier communication module and a first wireless communication module. The target terminal includes a second power line carrier communication module and a second wireless communication module. A power line carrier communication link is formed between the first power line carrier communication module and the second power line carrier communication module, and a wireless communication link is formed between the first wireless communication module and the second wireless communication module. The target terminal also includes: The third receiving module is used to receive the access response message and uplink measurement signal configuration signaling sent by the management terminal; The fourth sending module is used to periodically send uplink measurement signals to the management terminal according to the configuration signaling of the uplink measurement signal; The second processing module is used to receive the instruction sent by the management terminal to report downlink channel quality information, and to report the downlink channel quality information to the management terminal; The third processing module is used to receive the main link configuration signaling sent by the management terminal, and configure the target main link according to the main link configuration signaling; wherein, the target main link is determined by the management terminal based on the uplink channel quality information and the downlink channel quality information, and the target main link is one of the power line carrier communication link and the wireless communication link, and the other of the power line carrier communication link and the wireless communication link is the target secondary link; The fifth sending module is used to send a main link configuration completion signaling to the management terminal; The fourth receiving module is used to receive the link resource configuration signaling sent by the management terminal through the target main link.

14. An electronic device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the method of signal transmission as claimed in any one of claims 1 to 7, or the steps in the method of signal transmission as claimed in any one of claims 8 to 11.

15. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the method of signal transmission as claimed in any one of claims 1 to 7, or the steps of the method of signal transmission as claimed in any one of claims 7 to 9.

16. A computer program product, characterized in that, Includes computer instructions that, when executed by a processor, implement the method of signal transmission as claimed in any one of claims 1 to 7, or the steps in the method of signal transmission as claimed in any one of claims 8 to 11.

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