A signaling transmission method, device and system based on a non-independent control channel

By using a non-independent control channel signaling transmission method, the signaling waveform and the service waveform share the transmission channel and are repeatedly transmitted multiple times in the same time slot. This solves the problems of wasted hardware resources and low spectrum utilization efficiency in traditional wireless communication systems, and improves system reliability and spectrum utilization.

CN116234028BActive Publication Date: 2026-02-03THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310261272.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-17
Publication Date
2026-02-03
Estimated Expiration
2043-03-17

AI Technical Summary

Technical Problem

The independent control channel transmission method in traditional wireless communication systems leads to wasted hardware resources, high system complexity, low spectrum utilization efficiency, and difficulty in link synchronization.

Method used

The signaling transmission method using a non-independent control channel employs low-rate spread spectrum coding and low-order modulation. The signaling waveform and the service waveform share the same transmission channel, and the signaling information is repeatedly transmitted multiple times in the same time slot to obtain time diversity gain and achieve reliable transmission of the signaling waveform.

Benefits of technology

It saves hardware resources, reduces system complexity, improves spectrum utilization and system reliability, solves link synchronization problems, and enables reliable and efficient signaling transmission.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a signaling transmission method, device and system based on non-independent control channel, belonging to the technical field of wireless communication. The method comprises the steps of link synchronization, signaling generation at the sending end, signaling coding at the sending end, information multiplexing modulation at the sending end, information demodulation and demultiplexing at the receiving end, signaling decoding at the receiving end and signaling execution at the receiving end. The signaling control information is multiplexed in the link transmission information for transmission, so that the separate signaling control device is no longer occupied, the hardware resource is saved, the complexity of the communication system is reduced, and the reliability of the whole communication system is improved. The transmission of the signaling information in the known time slot obviously reduces the requirement for the signaling synchronization of the communication system. The control signaling and the service information are multiplexed and transmitted, the frequency spectrum resource is shared, the waste of the frequency spectrum resource caused by the separate occupation of the signaling channel and the frequency protection interval in the transmission of the independent control channel is avoided, and the system frequency spectrum utilization efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of wireless communication, and in particular to a signaling transmission method, device and system based on a non-independent control channel, which can be used for control signaling transmission in wireless communication systems. Background Technology

[0002] Traditional wireless communication systems often employ a control channel independent of the service transmission channel to maintain and control the communication link. Reliable communication is typically achieved by increasing the transmitter power or designing a low-threshold receive waveform. This approach easily leads to additional hardware requirements or the need to handle different waveforms simultaneously, increasing system complexity and hindering reliability. Furthermore, systems using independent control channels for signaling transmission suffer from signaling synchronization issues between links due to different transmission paths, as well as spectrum utilization efficiency problems caused by the independent control channel and the designed frequency guard interval.

[0003] To address the above issues, a signaling transmission method based on a non-independent control channel can save hardware resources, improve system reliability, resolve link synchronization jitter, and increase spectrum utilization while ensuring stable channel transmission, thus achieving reliable and efficient transmission of link signaling. Summary of the Invention

[0004] In view of this, the present invention provides a signaling transmission method, device, and system based on a non-independent control channel. The present invention employs low-rate spread spectrum coding for control signaling and multiplexes the coded information into the transmitted information, making the demodulation threshold of the signaling waveform field significantly better than that of the service information field. This achieves reliable and stable transmission of link control signaling. Compared to communication systems configured with independent control channels, this invention further saves hardware resources, improves system reliability, reduces system synchronization requirements, and increases the spectrum utilization of the communication system. It also features simple implementation and good portability.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A signaling transmission method based on a non-independent control channel includes the following steps:

[0007] Step 1: Use a low demodulation threshold waveform to establish the link and achieve initial timing synchronization between the two parties in the wireless communication system;

[0008] Step 2: Implement timing tracking between the two communicating parties by designing timing fields in the waveform at the physical layer.

[0009] Step 3, at the sending end, according to user instructions or the requirements of link maintenance control, fill the signaling information to be transmitted into the signaling frame structure according to the determined protocol format and length requirements; after the signaling framing is completed, low code rate spread orthogonal coding is performed, so that the signaling waveform segment has obvious demodulation performance advantage compared with the service waveform segment;

[0010] Step 4, the coded signaling information and service information are multiplexed, the signaling information and the service information share modulation mapping and transmission channel, the signaling information segment selects low-order modulation to obtain higher transmission reliability than the service information, and the signaling waveform part is repeatedly transmitted multiple times in the same time slot time to obtain time diversity gain;

[0011] Step 5, the modulated signaling signal and the service signal share the transmission channel, and after frequency conversion and signal amplification processing, the signal is radiated and sent by the antenna at the sending end;

[0012] Step 6, at the receiving end, the radio frequency received wireless signal is down-converted and demodulated, and then split according to the field position to obtain the demodulation soft information corresponding to the received coded signaling information of the opposite end;

[0013] Step 7, the demodulation soft information of the received signaling field is quickly decoded, since the sending end repeatedly transmits multiple times in the same time slot, the receiving end will receive multiple demodulation soft information in the same time slot, and the receiving end needs to complete the collection and signal alignment of the demodulation soft information in the time slot, and jointly decode all the soft information received in the time slot to obtain the diversity gain of the combination;

[0014] Step 8, according to the protocol agreement, the relevant instruction information is taken out from the signaling information output by the signaling decoding of the receiving end, and the interface of each functional module of the local end is issued according to the parsed instruction information, to complete the transmission of the signaling from the sending end to the receiving end.

[0015] A signaling sending method based on a non-independent control channel, applied to a sending end, the sending end and a receiving end use a low demodulation threshold waveform to realize link establishment and initial timing synchronization, and realize timing tracking of both sides of communication through a timing field in the physical layer design waveform; comprising the following steps:

[0016] Step 1, according to user instructions or the requirements of link maintenance control, fill the signaling information to be transmitted into the signaling frame structure according to the determined protocol format and length requirements; after the signaling framing is completed, low code rate spread orthogonal coding is performed, so that the signaling waveform segment has obvious demodulation performance advantage compared with the service waveform segment;

[0017] Step 2, the encoded signaling information is multiplexed with the service information, the signaling information and the service information share the modulation mapping and the transmission channel, the signaling information segment selects a low-order modulation to obtain higher transmission reliability than the service information, and the signaling waveform part is repeatedly transmitted multiple times within the same time slot time to obtain time diversity gain.

[0018] Step 3, the modulated signaling signal and the service signal share the transmission channel, and are processed through up-conversion and signal amplification, and then are radiated and transmitted through an antenna.

[0019] A signaling receiving method based on a non-independent control channel, applied to a receiving end, a transmitting end and the receiving end utilize a low demodulation threshold waveform to realize link establishment and initial timing synchronization, and realize timing tracking of both communication parties through a timing field in a physical layer designed waveform; the method comprises the following steps:

[0020] Step 1, radio frequency received wireless signals are processed through down-conversion and demodulation, and then are split according to field positions to obtain demodulation soft information corresponding to received encoded signaling information of an opposite end;

[0021] Step 2, the demodulation soft information of the received signaling field is quickly decoded, since the transmitting end repeatedly transmits multiple times within the same time slot, the receiving end receives multiple segments of demodulation soft information within the same time slot time, the receiving end needs to complete collection and signal alignment of the demodulation soft information within the time slot, and jointly decodes all the soft information received within the time slot to obtain diversity combining gain;

[0022] Step 3, according to a protocol agreement, relevant instruction information is taken out from the signaling information decoded and output by the receiving end to complete signaling reception.

[0023] A signaling transmitting device based on a non-independent control channel, used for executing the signaling transmitting method as described above.

[0024] A signaling receiving device based on a non-independent control channel, used for executing the signaling receiving method as described above.

[0025] A signaling transmission system based on a non-independent control channel, comprising a signaling transmitting device and a signaling receiving device, the signaling transmitting device and the signaling receiving device utilize a low demodulation threshold waveform to realize link establishment and initial timing synchronization, and realize timing tracking of both communication parties through a timing field in a physical layer designed waveform; the signaling transmitting device is used for executing the signaling transmitting method as described above, and the signaling receiving device is used for executing the signaling receiving method as described above.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] 1. The application adopts a non-independent control channel scheme to realize transmission and interaction of control signaling information, thereby realizing maintenance and control of a communication link. Compared with a conventional signaling transmission method which realizes transmission by means of increasing transmission power or adding a low threshold transmission waveform, the scheme has the advantages of saving hardware resources, reducing implementation complexity and improving system implementation reliability.

[0028] 2. In the application, signaling waveforms and service waveforms share a transceiving channel and belong to one transmission link, thereby avoiding time synchronization problems caused by different paths when signaling waveforms and service waveforms are transmitted separately, improving utilization efficiency of hardware resources and waveforms, reducing implementation complexity and being more conducive to stability of system operation.

[0029] 3. In the application, signaling waveforms and service waveforms share a transceiving channel and spectrum resources, and spectrum resources occupied by signaling transmission can be ignored. Compared with a conventional independent control channel waveform design, the application saves special signaling spectrum occupation and a frequency protection interval introduced thereby, and obviously improves spectrum utilization efficiency of the system. Embodiment

[0030] The application will be further described in detail below.

[0031] A signaling transmission method based on a non-independent control channel, comprising the following steps:

[0032] Step 1: realizing link establishment and initial timing synchronization of both sides of a wireless communication system by using a low demodulation threshold waveform;

[0033] Step 2: realizing timing tracking of both sides of the communication by a timing field in a physical layer design waveform;

[0034] Step 3: at a sending end, filling signaling information to be transmitted into a signaling frame structure according to a determined protocol format and length requirement according to a user instruction or a requirement of link maintenance control; after completion of signaling framing, performing low code rate spread spectrum orthogonal coding, so that the signaling waveform segment has obvious demodulation performance advantages compared with the service waveform segment;

[0035] Step 4: multiplexing the coded signaling information and service information, and sharing modulation mapping and a transmission channel by the signaling information and the service information, selecting a low-order modulation for the signaling information segment to obtain higher transmission reliability than the service information, and repeatedly transmitting the signaling waveform part in the same time slot time to obtain time diversity gain;

[0036] Step 5: sharing a transmission channel by the modulated signaling signal and the service signal, performing up-conversion, signal amplification processing, and completing radiation transmission of the sending end signal through an antenna;

[0037] Step 6, at the receiving end, the radio frequency received wireless signal is down-converted, demodulated, and then split according to the field position to obtain the demodulation soft information corresponding to the received signaling information of the opposite end after encoding;

[0038] Step 7, the demodulation soft information of the received signaling field is quickly decoded. Since the sending end repeatedly transmits multiple times in the same time slot, the receiving end will receive multiple pieces of demodulation soft information in the same time slot. The receiving end needs to collect and align the demodulation soft information in the time slot, and jointly decode all the soft information received in the time slot to obtain the diversity gain.

[0039] Step 8, according to the protocol agreement, the relevant instruction information is taken out from the signaling information decoded by the receiving end, and the interface of each functional module of the local end is issued according to the parsed instruction information, thereby completing the transmission of the signaling from the sending end to the receiving end.

[0040] A signaling transmission method based on a non-independent control channel, applied to a sending end, the sending end and a receiving end use a low demodulation threshold waveform to realize link establishment and initial timing synchronization, and realize timing tracking of both communication parties through a timing field in a physical layer designed waveform; comprising the following steps:

[0041] Step 1, according to the user instruction or the demand of link maintenance control, fill the signaling information to be transmitted into a signaling frame structure according to the determined protocol format and length requirement; after the signaling framing is completed, perform low code rate spread spectrum orthogonal coding, so that the signaling waveform segment has obvious demodulation performance advantage compared with the service waveform segment;

[0042] Step 2, multiplex the coded signaling information and service information, the signaling information and the service information share modulation mapping and transmission channel, the signaling information segment selects low-order modulation to obtain higher transmission reliability than the service information, and the signaling waveform part is repeatedly transmitted multiple times in the same time slot to obtain time diversity gain;

[0043] Step 3, the modulated signaling signal and the service signal share the transmission channel, and after frequency up-conversion and signal amplification processing, the antenna completes the radiation transmission of the sending end signal.

[0044] A signaling receiving method based on a non-independent control channel, applied to a receiving end, the sending end and the receiving end use a low demodulation threshold waveform to realize link establishment and initial timing synchronization, and realize timing tracking of both communication parties through a timing field in a physical layer designed waveform; comprising the following steps:

[0045] Step 1, the radio frequency received wireless signal is down-converted, demodulated, and then split according to the field position to obtain the demodulation soft information corresponding to the received signaling information of the opposite end after encoding;

[0046] Step 2: Decode the demodulated soft information of the received signaling field quickly. Since the transmitting end retransmits multiple times in the same time slot, the receiving end will receive multiple segments of demodulated soft information in the same time slot. The receiving end needs to complete the collection of demodulated soft information and signal alignment in the time slot, and jointly decode all the soft information received in the time slot to obtain the diversity gain.

[0047] Step 3: According to the agreement, extract the relevant instruction information from the signaling information output by the receiving end signaling decoding to complete the signaling reception.

[0048] A signaling transmission device based on a non-independent control channel is used to execute the signaling transmission method described above.

[0049] A signaling receiving device based on a non-independent control channel is used to perform the signaling receiving method described above.

[0050] A signaling transmission system based on a non-independent control channel includes a signaling transmitting device and a signaling receiving device. The signaling transmitting device and the signaling receiving device establish a link and perform initial timing synchronization using a low demodulation threshold waveform, and track the timing of the two communicating parties by designing a timing field in the waveform at the physical layer. The signaling transmitting device is used to execute the signaling transmitting method described above, and the signaling receiving device is used to execute the signaling receiving method described above.

[0051] Here is a more specific example:

[0052] A signaling transmission method based on a non-independent control channel in a wireless communication system includes steps such as link synchronization, transmitting signaling generation, transmitting signaling coding, transmitting information multiplexing modulation, receiving information demodulation and demultiplexing, receiving signaling decoding, and receiving signaling execution. The transmitting signaling coding employs a low coding rate and low-order modulation scheme, and uses orthogonal coding to improve the reliability of signaling waveform transmission by increasing coding gain and lowering waveform thresholds. The transmitting information multiplexing modulation, through the repeated transmission of signaling information within the same time slot, enables the receiving signaling to obtain diversity combining gain, thereby improving the stability and reliability of control channel transmission. Detailed steps are as follows:

[0053] 1) The link synchronization phase first establishes the link and performs initial timing synchronization between the two parties in the wireless communication system. The initial link establishment is achieved using a low demodulation threshold waveform, which does not require signaling information transmission and mainly completes the initial link synchronization. After the initial synchronization is completed, the link enters the timing tracking phase. After the link is established, timing tracking between the two parties is achieved through waveform design at the physical layer, such as using pilot sequence matching correlation peaks, to resist timing deviations caused by clock or Doppler frequency shift at both ends of the communication, so that the two parties maintain a precise synchronization state.

[0054] 2) During the signaling generation stage, the communication system fills the signaling information (such as rate control information, power control information, link maintenance information, etc.) to be transmitted into the signaling frame structure according to the user instructions or the requirements of the link maintenance control, in accordance with the determined protocol format and length requirements. The signaling content is determined according to the meaning specified in the protocol. Each type of signaling is set with a default value. After the signaling frame is completed, it enters the signaling encoding module for orthogonal encoding. In this invention, the length of the transmitting signaling information is designed to be 8 bits.

[0055] 3) The transmitting signaling coding module mainly performs low-rate spread spectrum coding on the signaling data prepared in the transmitting signaling generation stage. It achieves a larger coding gain by using a lower code rate and a lower demodulation threshold by using a low-order modulation scheme. In this invention, a 1 / 8 code rate BPSK modulation scheme is selected, and through coding, the 8-bit signaling information is expanded to 64 bits. Through the design of low code rate and low-order modulation, the demodulation threshold of the signaling waveform is at least 6-8 dB better than the service waveform, thus ensuring a performance margin for signaling information transmission in the basic waveform design. In waveform design, lower code rate coding can improve the anti-interference and anti-fading capabilities of the transmitted signaling waveform, but this is essentially achieved through a larger redundancy design. When designing the signaling waveform coding scheme, information transmission efficiency must also be comprehensively considered to avoid excessive signaling overhead and reduced overall system transmission efficiency. In this invention, the length of the signaling information is strictly controlled to not exceed 8 bits, ensuring that the length of the information after low-rate coding (64 bits) is still within an acceptable range, thereby achieving a high-reliability design while maintaining acceptable waveform efficiency. Meanwhile, in order to further improve the anti-interference capability and reliability of signaling information, the transmitting signaling coding adopts an orthogonal coding method to ensure that each signaling code transmitted in space has a low coupling degree, reduce the confusion probability of each signaling waveform, and further improve the robustness performance.

[0056] 4) The transmitting end information multiplexing and modulation module is mainly responsible for filling the encoded signaling information into the service information according to the protocol format. After multiplexing, the signaling information and service information are modulated and mapped according to the corresponding fields (in this invention, the signaling information is BPSK modulation and the service information is 8PSK modulation). The modulated signaling signal and service signal share the same transmission channel and are further processed by up-conversion and signal amplification to complete the radiation transmission of the transmitting end signal.

[0057] It should be noted that, in order to improve the reliability of signaling waveform transmission, in addition to selecting a lower coding rate and a lower-order modulation method, the same signaling information is transmitted multiple times in the same time slot. The receiving end combines and decodes the signaling information received multiple times in one time slot to further obtain diversity gain, thereby maximizing the reliability of the received signaling information.

[0058] 5) The receiving end information demodulation and demultiplexing module mainly completes the task of splitting the information received by radio frequency and processed by downconversion and demodulation according to the field position, and obtaining the demodulated soft information corresponding to the received signaling information encoded by the peer end, which serves as the input of the signaling decoding function module. In addition to retrieving the corresponding signaling soft information, this module also provides the signaling decoding module with the enable signal corresponding to the demodulated soft information to facilitate decoding processing.

[0059] 6) The receiving signaling decoding module primarily performs fast decoding of the demodulated soft information in the received signaling fields. Since the transmitting end performs multiple time-division retransmissions within the same time slot, the receiving end receives multiple segments of demodulated soft information within the same time slot. The receiving signaling decoding module needs to collect and align the demodulated soft information within the time slot, and then jointly decode all the received soft information to obtain diversity union gain. The input signaling decoding consists of 64 segments of demodulated soft information; after decoding, the final output signaling information is 8 bits long.

[0060] 7) The receiving signaling execution module is mainly responsible for extracting relevant instruction information from the signaling information decoded from the receiving signaling end according to the protocol, and issuing the parsed instruction information to the local functional module interfaces. Each functional module then performs relevant operations, such as rate control, power control, and link maintenance. This completes the entire signaling transmission process from the sending end to the receiving end.

[0061] The sending signaling coding module mainly uses low-rate coding, and the specific steps are as follows:

[0062] 1) During the signaling generation phase, signaling information and corresponding data enable signals are generated based on user requirements or link maintenance needs;

[0063] 2) Align the signaling information with the data enable signal and use it as input to the encoding module;

[0064] 3) Generate the reset signal required by the encoding module based on the signaling information and data enable signal;

[0065] 4) After detecting the reset signal, the encoding module initializes its parameters;

[0066] 5) After the encoding module is initialized, the timing control will input the generated data enable and signaling data into the encoding module;

[0067] 6) The encoding module encodes the input information according to the determined generator matrix, and the output is the encoded output result after inserting redundancy;

[0068] 7) The encoding module has an input information length of 8 bits and an output information length of 64 bits. It also outputs an output enable signal aligned with the encoded information, thus completing the signaling information encoding.

[0069] It should be noted that, in order to further improve the anti-interference capability of signaling information, the transmitting signaling encoding adopts an orthogonal encoding method, which makes the encoded output information have good anti-noise performance, reduces the probability of misjudgment between various signaling waveforms, and further improves the robustness of the signaling control system.

[0070] The transmitting information multiplexing and modulation module mainly completes the multiplexing and signal modulation functions of encoded signaling information and service information. The specific steps are as follows:

[0071] 1) Obtain the signaling encoding information and corresponding output enable from the transmitting signaling encoding module as input to this module;

[0072] 2) The data information and corresponding enable signals output after the business information encoding are obtained are used as inputs to this module;

[0073] 3) Frame the signaling information, signaling enable, service information, and service enable according to the physical layer frame structure, and multiplex the corresponding information into the appropriate positions;

[0074] 4) After multiplexing is completed, the information sharing modulation mapping module performs BPSK modulation mapping on the signaling information field and 8PSK modulation mapping on the service information field according to the data enable instruction;

[0075] 5) After modulation and mapping, the information shares the same radio frequency channel. The transmitting end no longer distinguishes between signaling and service information. The modulated information is subjected to quadrature modulation, upconversion, and signal power amplification to complete the radio frequency signal radiation transmission.

[0076] It should be noted that, in order to further improve the reliability of signaling waveform transmission, in addition to selecting a lower coding rate and a lower-order modulation method, the same encoded signaling information is multiple times in the same time slot, multiplexed with different service information. The receiving end combines and decodes the signaling information received multiple times in the same time slot according to the timing mark to obtain diversity reception gain, thereby maximizing the accuracy and reliability of the received signaling information and ensuring the stable operation of the wireless communication system.

[0077] In summary, this invention, by multiplexing signaling control information into the link transmission information, eliminates the need for a separate signaling control device, saving hardware resources, reducing the complexity of the communication system, and improving its reliability. By transmitting signaling information in known time slots, it significantly reduces the requirements for signaling synchronization in the communication system, avoiding synchronization problems caused by different transmission paths between two links, which exist in independent control channel transmission. Furthermore, by multiplexing control signaling and service information, shared spectrum resources are used, avoiding the frequency resource waste caused by the separate occupation of spectrum resources and frequency protection intervals by the signaling channel in independent control channel transmission, thus improving the system's spectrum utilization efficiency. This invention features hardware resource saving, high system reliability, simple synchronization implementation, and frequency resource saving, and is widely applicable to control signaling transmission in wireless communication systems.

Claims

1. A signaling transmission method based on a non-independent control channel, characterized in that, Includes the following steps: Step 1: Use a low demodulation threshold waveform to establish the link and achieve initial timing synchronization between the two parties in the wireless communication system; Step 2: Implement timing tracking between the two communicating parties by designing timing fields in the waveform at the physical layer. Step 3: At the sending end, according to the user instructions or the requirements of link maintenance control, the signaling information to be transmitted is filled into the signaling frame structure according to the determined protocol format and length requirements. After the signaling framing is completed, low-rate spread spectrum orthogonal coding is performed, which gives the signaling waveform segment a significant demodulation performance advantage over the service waveform segment; Step 4: The encoded signaling information and service information are multiplexed. The signaling information and service information share the modulation mapping and transmission channel. The signaling information segment selects low-order modulation to obtain higher transmission reliability than the service information. In addition, the signaling waveform part is repeatedly transmitted multiple times in the same time slot to obtain time diversity gain. Step 5: The modulated signaling signal and service signal share the same transmission channel, undergo up-conversion and signal amplification, and are then radiated and transmitted via the antenna. Step 6: At the receiving end, the radio frequency received wireless signal is down-converted and demodulated, and then split according to the field position to obtain the demodulated soft information corresponding to the received signaling information encoded by the other end. Step 7: Decode the demodulated soft information of the received signaling field quickly. Since the transmitting end retransmits multiple times in the same time slot, the receiving end will receive multiple segments of demodulated soft information in the same time slot. The receiving end needs to complete the collection of demodulated soft information and signal alignment in the time slot, and jointly decode all the soft information received in the time slot to obtain the diversity gain. Step 8: According to the protocol, extract the relevant instruction information from the signaling information output by the signaling decoding at the receiving end, and send the parsed instruction information to the interfaces of each functional module on this end to complete the transmission of signaling from the sending end to the receiving end.

2. A signaling transmission method based on a non-independent control channel, characterized in that, Applied to the transmitting end, it utilizes a low demodulation threshold waveform to establish a link and achieve initial timing synchronization between the transmitting and receiving ends. Timing tracking between the communicating parties is achieved through timing fields in the waveform designed at the physical layer. The process includes the following steps: Step 1: According to the user instructions or link maintenance control requirements, fill the signaling information to be transmitted into the signaling frame structure according to the determined protocol format and length requirements; after the signaling framing is completed, perform low code rate spread spectrum orthogonal coding, so that the signaling waveform segment has a significant demodulation performance advantage compared with the service waveform segment; Step 2: The encoded signaling information and service information are multiplexed. The signaling information and service information share the modulation mapping and transmission channel. The signaling information segment selects low-order modulation to obtain higher transmission reliability than the service information. In addition, the signaling waveform part is repeatedly transmitted multiple times in the same time slot to obtain time diversity gain. Step 3: The modulated signaling signal and service signal share the same transmission channel. After up-conversion and signal amplification, the signal is radiated and transmitted through the antenna.

3. A signaling reception method based on a non-independent control channel, characterized in that, Applied to the receiving end, the low demodulation threshold waveform is used to establish the link and achieve initial timing synchronization between the transmitting and receiving ends. Timing tracking between the two communicating parties is achieved through timing fields in the waveform designed at the physical layer. The transmitting end executes the signaling transmission method as described in claim 2, including the following steps: Step 1: Down-convert and demodulate the radio signal received by radio frequency, and then split it according to the field position to obtain the demodulated soft information corresponding to the received signaling information encoded by the other end. Step 2: Decode the demodulated soft information of the received signaling field quickly. Since the transmitting end retransmits multiple times in the same time slot, the receiving end will receive multiple segments of demodulated soft information in the same time slot. The receiving end needs to complete the collection of demodulated soft information and signal alignment in the time slot, and jointly decode all the soft information received in the time slot to obtain the diversity gain. Step 3: According to the agreement, extract the relevant instruction information from the signaling information output by the receiving end signaling decoding to complete the signaling reception.

4. A signaling transmission device based on a non-independent control channel, characterized in that, Used to perform the signaling transmission method as described in claim 2.

5. A signaling receiving device based on a non-independent control channel, characterized in that, Used to perform the signaling reception method as described in claim 3.

6. A signaling transmission system based on a non-independent control channel, characterized in that, It includes signaling transmitting equipment and signaling receiving equipment. The signaling transmitting equipment and the signaling receiving equipment use a low demodulation threshold waveform to establish the link and achieve initial timing synchronization. The timing tracking of the two communicating parties is achieved by designing the timing field in the waveform through the physical layer. The signaling transmitting device is used to perform the signaling transmitting method as described in claim 2, and the signaling receiving device is used to perform the signaling receiving method as described in claim 3.

Citation Information

Patent Citations

  • Network communication method applicable to space-based network

    CN105846884A

  • Wireless communication adaptive transmission method

    CN105871506A