WO2022127448A1 - 消息传输的方法、终端及存储介质 - Google Patents

消息传输的方法、终端及存储介质 Download PDF

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Publication number
WO2022127448A1
WO2022127448A1 PCT/CN2021/129611 CN2021129611W WO2022127448A1 WO 2022127448 A1 WO2022127448 A1 WO 2022127448A1 CN 2021129611 W CN2021129611 W CN 2021129611W WO 2022127448 A1 WO2022127448 A1 WO 2022127448A1
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WIPO (PCT)
Prior art keywords
message
transmission
terminal
temporary
timing
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PCT/CN2021/129611
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English (en)
French (fr)
Inventor
何伟
张洪宇
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中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US18/034,728 priority Critical patent/US20230403735A1/en
Priority to JP2023536121A priority patent/JP2023554035A/ja
Priority to EP21905377.4A priority patent/EP4224809A4/en
Priority to KR1020237024210A priority patent/KR20230116941A/ko
Publication of WO2022127448A1 publication Critical patent/WO2022127448A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/04—Network management architectures or arrangements
    • H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/226—Delivery according to priorities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a method, terminal, and storage medium for message transmission.
  • the half-duplex mode has low transmission efficiency, but the half-duplex mode can save transmission lines, so the half-duplex mode
  • the transmission mode is still widely used, for example, in scenarios where the transmission rate and the timeliness of message reception are not high.
  • Half-duplex communication means that both parties in the communication can send information, but both parties cannot send or receive at the same time.
  • half-duplex communication mode only one party can send information and the other party can receive information at the same time, which results in untimely message transmission between the two parties.
  • High requirements, and due to the use of half-duplex communication mode both parties in the communication cannot send and receive messages in time, which affects the operation of the equipment.
  • Higher requirements, and the half-duplex communication mode is used between the terminal/base station and the antenna device, only one transmission line can be used to send messages, and the message transmission speed is slow, so that the terminal cannot accurately and timely control the power amplifier module of the antenna device. Power off, affecting the operation of the antenna device.
  • An embodiment of the present application provides a method for message transmission, which is applied to a first terminal.
  • a half-duplex communication mode is adopted between the first terminal and the second terminal.
  • the method includes: acquiring a message type of a message to be transmitted,
  • the message types include: timing category and temporary category; if it is determined that the message to be transmitted is a timing message, a corresponding transmission protection period is allocated to the timing message; the transmission protection period is preferentially transmitted to the second terminal within the transmission protection period. and a timing message for the second terminal to perform an operation corresponding to the timing message, wherein the transmission guard period is used for transmitting the timing message.
  • An embodiment of the present application further provides a terminal, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions that can be executed by the at least one processor , the instructions are executed by the at least one processor, so that the at least one processor can perform the above method for message transmission.
  • Embodiments of the present application further provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the foregoing method for message transmission is implemented.
  • FIG. 1 is a flowchart of a method for message transmission according to the first embodiment of the present application
  • FIG. 2 is a schematic diagram of providing a connection between a first terminal and a second terminal according to a second embodiment of the present application
  • FIG. 3 is a flowchart of a method for message transmission according to a second embodiment of the present application.
  • FIG. 4 is a schematic diagram of a frame structure of a high-priority message in a method for message transmission according to a second embodiment of the present application;
  • FIG. 5 is a schematic diagram of a frame structure of a message with a low priority in the method for message transmission provided in the second embodiment of the present application;
  • FIG. 6 is a schematic diagram of a sequence diagram of transmitting a message in a method for transmitting a message according to the second embodiment of the present application;
  • FIG. 7 is a schematic diagram of an implementation of obtaining the sending moment of a temporary message in the method for message transmission provided in the third embodiment of the present application;
  • FIG. 8 is a flowchart of a method for message transmission according to a fourth embodiment of the present application.
  • FIG. 9 is a schematic diagram of the implementation of transmitting high-priority messages according to the method for message transmission provided in the fifth embodiment of the present application.
  • FIG. 10 is a schematic diagram of a communication process of transmitting a message between an aviation device and an antenna device in the method for message transmission provided in the fifth embodiment of the present application;
  • FIG. 11 is a sequence diagram of a transmission message between an aviation device and an antenna device in the method for message transmission provided in the fifth embodiment of the present application;
  • FIG. 13 is a structural block diagram of a terminal provided according to a seventh embodiment of the present application.
  • the main purpose of the embodiments of the present application is to propose a message transmission method, terminal and storage medium, which can ensure the timeliness and accuracy of message transmission between terminals.
  • the first embodiment of the present application relates to a method for message transmission, which is applied to a first terminal, and a half-duplex communication mode is adopted between the first terminal and the second terminal, and the process is shown in FIG. 1 :
  • Step 101 Acquire the message type of the message to be transmitted, where the message type includes: a timing category and a temporary category.
  • Step 102 if it is determined that the message to be transmitted is a timing message, allocate a corresponding transmission protection period for the timing message; preferentially transmit the timing message to the second terminal within the transmission protection period, so that the second terminal can perform operations corresponding to the timing message, wherein , the transmission guard period is used to transmit timing messages.
  • the message type of the message to be transmitted is obtained, and the message type includes a timing type and a temporary type. If the to-be-transmitted message is a timing message, a corresponding transmission protection period is allocated for the timing message, and priority is placed on the timing message. The timing message is transmitted to the second terminal within the corresponding transmission protection period. Since the timing message has a corresponding transmission protection period, the timing message exclusively occupies the transmission protection period to ensure that the timing message is transmitted to the second terminal in time, so that the second terminal can be transmitted in time.
  • the terminal can perform the operation corresponding to the timing message in time to realize the accurate control of the first terminal on the second terminal; at the same time, a half-duplex communication mode is adopted between the first terminal and the second terminal, that is, the first terminal and the second terminal There is only one communication link between them, which saves the communication link.
  • the half-duplex communication mode the timeliness and accuracy of timing message transmission are ensured, and the application scenarios of the half-duplex communication mode are increased.
  • the second embodiment of the present application relates to a method for message transmission, and the second embodiment is a specific description of steps 101 to 102 in the first embodiment.
  • the first terminal and the second terminal are introduced in this example.
  • the message transmission method can be applied to a first terminal, where the first terminal can be a base station device, such as an aviation device, and the second terminal can be a base station device, or a communication device such as an antenna device.
  • the first terminal and the second terminal have a master-slave relationship, that is, the first terminal device is a master device, the second terminal device is a slave device, and the master device is used to control the slave device.
  • a half-duplex communication mode is adopted between the first terminal and the second terminal. In the half-duplex communication mode, the first terminal can send a message to the second terminal, and the second terminal can send a message to the first terminal.
  • the first terminal may include: a message interface C201, a first acquisition module C202, a second acquisition module C203, a message processing module C204, and a transmission Module C205 and transmission interface C206.
  • the message interface C201 and the transmission interface C206 are physical interfaces, the message interface C201 is used for information exchange with the software upper layer, and the message receiving interface C201 may include: network port, SPI, Serdes and so on. It can be understood that, different interface protocols may be used for information exchange between the software upper layers of the first terminal.
  • the transmission interface C206 may use devices in different time division forms to modulate and demodulate the digital signal, and the transmission interface C206 may use media such as coaxial cable, optical fiber, and twisted pair.
  • the first acquisition module C202, the second acquisition module C203, the message processing module C204, and the transmission module C205 are logical modules in this example, and the first acquisition module C202 is used to acquire the transmission priority of the message to be transmitted; the second acquisition module C203 Used to obtain the transmission protection period allocated for the timing message, and the transmission protection period is used to transmit the timing message; the message processing module C204 can be used to encode or decode the message to be transmitted; the transmission module C205 is used to determine that the message to be transmitted is a timing message, Then, the timing message is transmitted to the second terminal within the transmission protection period corresponding to the timing message, so that the second terminal can perform an operation corresponding to the timing message.
  • the second terminal can also adopt a structure similar to the first terminal.
  • the second terminal includes: a message interface D201, a receiving module D202, a message processing module D203, an operation module D204, and a transmission interface D205.
  • the transmission interface C206 of the first terminal is connected to the transmission interface D205 of the second terminal.
  • the message interface D201 is used to exchange information with the software upper layer; the receiving module D202 is used to receive the timing message sent by the first terminal within the transmission protection period, and the transmission protection period is used for the first terminal to time the message.
  • the message processing module D203 is used to decode or encode the message; the operation module D204 is used to perform the operation corresponding to the timing message.
  • the first terminal and the second terminal are connected in the manner shown in FIG. 2 . It can be understood that the first terminal and the second terminal may also include other modules, which will not be listed one by one here.
  • aviation equipment is used as an example for the first terminal
  • antenna equipment is used as an example for the second terminal.
  • the aviation equipment is networked with the antenna equipment.
  • the message interface of the aviation equipment is a 10G network port, and the unpacking and format conversion of the message are completed at the software level.
  • the signal transmission of aviation terminal equipment and antenna equipment adopts coaxial cable, and the digital signal transmission protocol uses serial port protocol, which is converted into analog amplitude modulation signal after modulation by binary amplitude keying (OOK: On-Off Keying) for transmission.
  • OOK On-Off Keying
  • Step 201 Obtain the message type of the message to be transmitted, where the message type includes: a timing category and a temporary category.
  • the transmission category of the message to be transmitted may be preset, wherein the timing message is a message with high real-time and accuracy, and may be a periodic and non-discardable message.
  • the timing message may include: control the antenna device.
  • a power amplifier instruction a start instruction for instructing the antenna device to start sending information to the first terminal, and an end instruction for instructing the antenna device to stop sending information to the first terminal.
  • Temporary messages may be non-periodic messages, such as handshake requests.
  • Temporary messages can include: antenna status query, port working status query, port working mode query, entering/exiting line loss test mode, line loss test message, line loss test result message, antenna software/hardware version query, antenna SN number query, Set the antenna port beam command, the antenna temperature query, the firmware upgrade start/continue/end command, the firmware upgrade version CRC check result command, the command to enter the receive/transmit test mode, the command to enter the transmit/receive diagnostic mode, the antenna manufacturer query, etc.
  • the frame structure of the timing message includes: message header, message content and message trailer;
  • the frame structure of the temporary message includes: message header, scrambling sequence, message type, message content, check value and message trailer.
  • the frame structure of the timing message can be set to include: message header, message content and message trailer.
  • the frame structure is shown in Figure 4.
  • the frame structure of the timing message includes a message header with a length of a Byte, a message content of b Byte and a message tail of c Byte.
  • the length of the message content in the timing message is usually short, so that it can be ensured that the content of the message does not repeat the message header or the message tail, and the message content can be completely identified.
  • the frame structure of the temporary message is shown in Figure 5, including: the message header of a Byte, the scrambling sequence of b Byte, the message type of c Byte, the length of the message content of 1 to n Byte, the CRC check value of d Byte and e Byte's message trailer.
  • the message content in the temporary message is long, so the scrambling sequence is set to avoid the presence of the same field in the message content and the flag bit in the message header. Similarly, the CRC check value is set to avoid the presence of the same field in the message tail and the flag bit in the message content. .
  • a primitive polynomial may be selected to scramble the message.
  • Step 202 Determine whether the message to be transmitted is a timed message, if it is determined that the message to be transmitted is a timed message, go to step 203, and if it is determined that the message to be transmitted is a temporary message, go to step 204.
  • Method 1 Obtain the transmission type issued by the software upper layer.
  • the to-be-transmitted message is delivered by the software upper layer.
  • the software upper layer delivers the to-be-transmitted message, it corresponds to the transmission category of the to-be-transmitted message.
  • the transmission class of message A is the timing class.
  • Mode 2 Determine the transmission type according to the message header in the message to be transmitted.
  • the transmission type can be marked in the message header of the message to be transmitted, and the transmission type of the message to be transmitted can be determined by identifying the message header.
  • Method 3 Identify the transmission type according to the frame structure of the message to be transmitted.
  • the timing message includes a message header, a message content and a message trailer; while the temporary message includes a message header, a scrambling sequence, a message type, a message content, a check value and a message trailer. Therefore, if the frame structure of the message to be transmitted includes 3 parts, it is determined that the message to be transmitted is a timing message; if the frame structure of the message to be transmitted is identified to include 6 parts, it is determined that the message to be transmitted is a temporary message.
  • a periodic message is used as a timing message. If the message to be transmitted is identified as a periodic message, then the message to be transmitted is determined to be a timing message. .
  • step 203 is performed, and if it is determined that the message to be transmitted is a temporary message, step 204 is performed.
  • Step 203 Allocate a corresponding transmission protection period for the timing message; preferentially transmit the timing message to the second terminal within the transmission protection period for the second terminal to perform operations corresponding to the timing message, wherein the transmission protection period is used for transmitting the timing message.
  • the corresponding transmission protection period may be allocated in each transmission period according to periodic messages, or may be allocated at intervals of preset transmission periods, and the period of the transmission protection period may be allocated according to actual needs.
  • the transmission guard period may be allocated according to the periodicity of the timing message. The transmission guard period is used to transmit the timing message, that is, the transmission guard period is exclusively used to transmit the timing message.
  • the time length of the transmission protection period can be determined according to the message length and quantity of the timing messages, so that the length W of the transmission protection period should be greater than the overall sending time of the timing messages to be sent, so as to ensure that the transmission protection period can be completely transmitted. Timed messages.
  • the timing message is preferentially transmitted to the second terminal within the transmission protection period, and after the second terminal receives the timing message, Perform the corresponding operation.
  • a specific example is given below.
  • the message to be transmitted is a power-on command for power amplifier control.
  • Figure 6 shows the timing diagram of the transmission message, the transmission period is T, and Figure 6 shows 3 transmission periods, and each transmission period is assigned a corresponding transmission protection Period (as shown in the slashed box A in FIG. 4 ), in the first transmission cycle, the length of the transmission protection period is W.
  • the time T200 is detected, the upper limit of the power amplifier control is transmitted in the transmission protection period A.
  • the second terminal After receiving the power-on command controlled by the power amplifier, the second terminal performs the power-on operation of the power amplifier.
  • Step 204 Obtain the sending time of the temporary message, where the sending time is within the time period between the current transmission protection period and the next transmission protection period.
  • the sending moment of the temporary message may be set within a period between the current transmission protection period and the next transmission protection period. For example, if the period between the current transmission protection period and the next transmission protection period is T1 to T3, a time between T1 to T3 may be selected as the transmission time of the temporary message.
  • Step 205 Acquire a threshold time that is separated from the start time of the next transmission protection period by a first preset duration.
  • the start time of the next transmission protection period is obtained, and the time that is separated from the start time by a first preset time length is used as the threshold time.
  • the first preset time length can be set according to the actual application, and the first preset time length can be temporary.
  • the maximum duration of message transmission, for example, the first preset duration may be 120ms.
  • the transmission duration of the temporary message is obtained; the duration greater than or equal to the transmission duration is used as the first preset duration.
  • the transmission duration of the temporary message can be obtained, and the duration greater than or equal to the transmission duration can be obtained as the first preset duration. For example, if the transmission duration of the temporary message is 60ms, then the duration greater than or equal to the 60ms can be selected as the first preset duration.
  • a preset duration for example, the first preset duration is 60ms, 70ms, or the like.
  • Step 206 Determine whether the sending time is before the threshold time, if yes, go to Step 207, otherwise, go to Step 208.
  • step 207 can be executed. If the sending time is later than the threshold time, it is determined that the transmission of the temporary message cannot be completed before the start of the next transmission protection period. At this time, the transmission time of the temporary message is adjusted to avoid the temporary message being interrupted by the transmission protection period. The transmission of the temporary message is incomplete, or the problem of retransmission of the temporary message is avoided.
  • Step 207 Transmit the temporary message at the time of sending.
  • Step 208 Adjust the sending time to after the next transmission protection period.
  • the sending time is adjusted. Since the temporary message cannot be sent before the next transmission protection period starts, the sending time can be adjusted to a time period after the next transmission protection period. For example, as shown in FIG. 6 , the transmission time of the temporary message is t0, which is located in the d1 period between the transmission protection period A and the transmission protection period B. If t0 is later than the threshold time td; then the transmission time of the temporary message is The adjustment is within the period after the transmission protection period B, for example, within the d2 period between the transmission protection period B and the transmission protection period C, or within the d3 period.
  • the sending time is detected, so as to ensure the integrity of the transmission of the temporary message, and avoid the occurrence of interruption by the next transmission protection period when the transmission of the temporary message is not completed.
  • the transmission link supports retransmission, it can also avoid the situation that the transmission link repeatedly transmits the temporary message, reduce the unnecessary loss of the link, and improve the transmission efficiency of the transmission link.
  • the third embodiment of the present application relates to a method for message transmission.
  • This embodiment is a detailed introduction to obtaining the sending time of the temporary message in the second embodiment.
  • the process of obtaining the sending time of the temporary message is shown in Figure 7:
  • Step S31 Determine whether the current transmission link is occupied, if yes, execute step S32, and if the current transmission link is empty and the storage bank is empty, execute step S33.
  • Step S32 If it is detected that the current transmission link is occupied, the transmission priority level of the temporary message is obtained, and according to the order from high to low indicated by the transmission priority level, determine the current transmission protection period and the next transmission protection period. Temporary messages to be sent within the time period, and the sending time of the temporary messages to be sent is obtained, and other temporary messages whose sending time has not been determined are cached in the storage repository.
  • each temporary message has a corresponding transmission priority level. If a temporary message is received and the current transmission link is occupied, the transmission priority level of the temporary message can be obtained, and the current transmission priority level of the temporary message can be obtained.
  • the currently received message or the buffered temporary message may be transmitted to the second terminal according to the order from high to low indicated by the transmission priority level in a period between two adjacent transmission protection periods.
  • the transmission priority level is the highest priority level, and if so, the temporary message with the high priority level is preferentially transmitted in the period outside the transmission protection period. If the priority level of the temporary message is higher than the priority level of the message currently being sent, because the priority level of the temporary message is higher than the priority level of the message currently being sent, the temporary message can be preferentially transmitted within the period outside the transmission protection period. If the priority of the temporary message is the same as the priority of the message occupying the transmission link, the currently received temporary message can be The message is cached; if the priority level of the currently received temporary message is lower than the priority level of the message occupying the transmission link, the temporary message can be cached.
  • messages may be cached in descending order of priority of messages, so that temporary messages of high priority can be preferentially retrieved.
  • the repository can also cache this temporary message directly.
  • the messages are obtained from the repository in the descending order indicated by the transmission priority level, that is, the temporary messages with a high priority level are obtained first, and then the temporary messages with a low priority level are obtained to further ensure the timely transmission of the temporary messages with a high priority level.
  • Step S33 If it is detected that the current transmission link is empty and the storage bank is empty, obtain the sending time of the temporary message.
  • the current transmission protection period and the next transmission protection period can be used.
  • the sending moment of the temporary message is directly determined in the time period between the time periods.
  • the transmission guard period A is used to transmit the timing message
  • the period d1 between the transmission guard period A and the transmission guard period B can be used to transmit the temporary message
  • the timing message exclusively occupies the transmission protection period, which ensures that the second terminal can receive the timing message with high requirements for timeliness and accuracy in time;
  • Temporary messages are transmitted within the time period outside the time period.
  • Temporary messages have low requirements for timeliness and accuracy, and do not need to be transmitted in real time;
  • the temporary messages are transmitted in the time period outside the transmission protection period according to the order of transmission priority level from high to low. The timely transmission of high-priority temporary messages is ensured, and the transmission efficiency of the half-duplex communication mode is improved.
  • the fourth embodiment of the present application relates to a method for message transmission.
  • This embodiment is a further improvement of the above-mentioned embodiments.
  • the main improvement is that in the fourth embodiment, if it is detected that the transmission link is empty and the storage library is empty, a start instruction is generated so that the second terminal can transmit a message to the first terminal. Its process is shown in Figure 8.
  • Step 401 If it is detected that the current transmission link is empty and the storage bank is empty, a start instruction for instructing the second terminal to start transmitting information to the first terminal is generated, and the storage bank is used for buffering temporary messages.
  • the first terminal can control the second terminal to transmit information; the first terminal generates the start instruction, The start instruction is used to instruct the second terminal to start transmitting information to the first terminal, and the type of the start instruction is a timing type.
  • Step 402 Transmission start instruction.
  • a corresponding transmission protection period may be allocated to the start instruction, and the transmission of the start instruction may be started at a time point that is a third time period away from the end point of the corresponding transmission protection period.
  • Obtain the end time of the transmission protection period and the transmission duration of the start command and determine the start time of the start command according to the end time of the transmission protection period and the transmission duration of the start command, so that the start time is completed when the transmission protection time period ends.
  • transmission of instructions For example, if the transmission duration of the start command is a; the end time of the transmission protection period is tb; then the time at which the start command is transmitted is tb-a.
  • the second preset time may be the transmission time of the start instruction, so that it can be ensured that the transmission of the start instruction within the transmission protection period will not occupy Excessive duration in the transmission guard period.
  • the start instruction may also be transmitted directly in the period between adjacent transmission guard periods.
  • Step 404 After the second preset time period is away from the moment when the start instruction is sent, generate an end instruction for instructing the second terminal to end the transmission of information.
  • the second preset duration may be set according to the actual application.
  • the second preset duration may be the duration that the first terminal receives the information transmitted by the second terminal, and may also be set as the distance from the next transmission. The maximum duration for the start of the guard period.
  • the end instruction instructs the second terminal to stop transmitting information.
  • Step 405 Allocate the corresponding transmission protection period for the end instruction, and transmit the end instruction at the start time of the corresponding transmission protection period.
  • step of assigning the corresponding transmission protection period to the end command is substantially the same as that of step 202 in the second embodiment, and will not be repeated here.
  • the end instruction is transmitted at the beginning of the transmission protection period, so that if other timing messages are received, subsequent periods of the transmission protection period can be allocated to other timing messages, reducing the impact of the end instruction on the transmission of other timing messages.
  • the first terminal sends the start instruction to the second terminal, and the second terminal transmits feedback information to the first terminal in the period between the two transmission protection periods; the second terminal occupies between two adjacent transmission protection periods.
  • the feedback information is transmitted during the period between, and the d1 period as shown in FIG. 6 is used for transmitting the feedback information.
  • the feedback information may include: state information of the second terminal, etc.
  • the feedback information may include antenna device state information, such as temperature, antenna angle and other information.
  • the first terminal receives the feedback information transmitted by the second terminal last time, it generates an end instruction, and the end instruction is used to instruct the second terminal to end the transmission of information; the end instruction is transmitted to the second terminal, and the second terminal receives the After finishing the instruction, stop sending information to the first terminal.
  • the first terminal controls the second terminal to transmit information to the first terminal through a transmission start instruction, and after receiving the message transmitted by the second terminal
  • the second terminal is controlled to stop the transmission of information by sending an end command, and the information transmission of the second terminal is controlled by the first terminal, so that in the half-duplex communication mode, the first terminal controls the second terminal to send messages to ensure that The sending of the message by the second terminal does not affect the sending of the message by the first terminal.
  • the fifth embodiment of the present application relates to a method for message transmission.
  • This embodiment is another implementation of step 102 in the first embodiment and step 202 in the second embodiment.
  • the specific flow of the implementation is as shown in the figure 9 shows:
  • Step 501 If it is detected that the timing message is an instruction of a synchronization operation, obtain the synchronization time between the first terminal and the second terminal.
  • the synchronization operation instruction may be an instruction indicating a periodic operation.
  • the transceiver switching operation of the antenna equipment needs to be completely synchronized with the aviation equipment. Most of the transceiver switching operations in the communication field have periodic requirements, and the aviation terminal equipment and antenna equipment need Control the power-on/off of the respective power amplifiers at the same time, or control the switching of the respective transceiver/transmit switches at the same time, so as to ensure the normal communication function.
  • the instruction for synchronous operation may be an instruction to control the power-on/power-off of the power amplifier, or an instruction to control the switching of the antenna receiving/transmitting switch. For another example, if it is detected that the timing message is an instruction to control the power amplifier, the synchronization moment of the to-be-synchronized operation between the first terminal and the second terminal is acquired.
  • Step 502 Transmit the timing message to the second terminal within the transmission protection period according to the preset advance duration and the synchronization moment, so that the second terminal performs an operation corresponding to the timing message at the synchronization moment.
  • the antenna side does not have the ability to perform transceiver switching independently, by transmitting timing messages in advance, the power-on/power-off operation of the power amplifier of the antenna equipment is completely synchronized with the aviation equipment.
  • the second terminal by sending an instruction to control the power amplifier in advance before the synchronization time, the second terminal can accurately synchronize with the first terminal.
  • the operation of powering on and off the power amplifier of the antenna device needs to be completely synchronized with the aviation terminal device, and has periodicity.
  • the transmission is performed in each transmission period.
  • the total length of the guard period is 6ms.
  • the end-to-end delay it mainly includes a modulation delay of 20us at the transmitting end, a transmission delay of 242us, and an analysis delay at the receiving end of 23us, that is, a total delay of 285us.
  • Each power amplifier power-on and power-off message of an antenna device is sent 285us in advance.
  • Protect in 10 indicates a transmission guard period.
  • M001 The aviation equipment sends an instruction for the antenna equipment to control the power-on of the power amplifier
  • M002 Aviation equipment sends a handshake request message
  • M003 The aviation equipment sends the antenna equipment to send the start command
  • M004 The antenna device sends a handshake response message
  • M005 Aviation equipment sending antenna equipment sending end command
  • M006 Aviation equipment sends antenna equipment status query message
  • M007 Aviation equipment sends antenna equipment angle query message
  • M008 Aviation equipment sends antenna equipment angle control message
  • the aviation equipment sends an instruction for the antenna equipment to control the power-on of the power amplifier
  • M010 The aviation equipment sends the antenna equipment to send the start command
  • the antenna device sends an antenna device status report message
  • the antenna device sends the antenna device angle report message
  • M013 The aviation equipment sends the antenna equipment to send the end command
  • M014 The aviation equipment sends an instruction for the antenna equipment to control the power off of the power
  • M015 The aviation equipment sends the antenna equipment to send the start command
  • the antenna device sends an antenna device angle update message.
  • the sixth embodiment of the present application relates to a message transmission method, which is applied to a second terminal, and a half-duplex communication mode is adopted between the second terminal and the first terminal.
  • the flow of the message transmission method is shown in FIG. 12 . Show.
  • Step 601 Receive a timing message sent by a first terminal within a preset transmission protection period, where the transmission protection period is used for the first terminal to transmit timing messages, where the message types include: timing types and temporary types.
  • the second terminal receives the timing message sent by the first terminal. After receiving the timing message, the second terminal can decode the timing message, obtain the type of the received timing message, and preferentially process the timing message. corresponding operation. For example, if the timing message is instruction information for powering on the power amplifier, the second terminal preferentially performs the power-on operation of the power amplifier.
  • Step 602 Execute an operation corresponding to the timing message.
  • the feedback information is sent to the first terminal within a period between two adjacent transmission guard periods.
  • the feedback information may include: state information of the second terminal, etc.
  • the feedback information may include antenna device state information, such as temperature, antenna angle and other information.
  • the first terminal obtains the end time of the transmission protection period and the transmission duration of the start instruction, and starts to transmit the start instruction at a time that is separated from the end time of the corresponding transmission protection period by a second preset time, so that the transmission protection period ends When the transmission of the start command is completed. For example, if the transmission duration of the start command is a; the end time of the transmission protection period is tb; then the time at which the start command is transmitted is tb-a.
  • the first terminal After receiving the information transmitted by the second terminal, the first terminal generates an end instruction, where the end instruction is used to instruct the second terminal to end the transmission of information, and when the end instruction is received within the next transmission protection period, the second terminal The transmission of information to the first terminal will be stopped.
  • the first terminal transmits an end instruction at the beginning of the transmission protection period, so that other high-priority messages can be transmitted for subsequent durations within the transmission protection period, without affecting the first terminal to transmit messages.
  • the message type of the message to be transmitted is obtained, and the message type includes a timing category and a temporary category. If the message to be transmitted is a timing message, a corresponding transmission protection period is allocated for the timing message, and priority is placed on the timing message. The timing message is transmitted to the second terminal within the corresponding transmission protection period. Since the timing message has a corresponding transmission protection period, the timing message exclusively occupies the transmission protection period to ensure that the timing message is transmitted to the second terminal in time, so that the second terminal can be transmitted in time.
  • the terminal can perform the operation corresponding to the timing message in time to realize the accurate control of the first terminal on the second terminal; at the same time, a half-duplex communication mode is adopted between the first terminal and the second terminal, that is, the first terminal and the second terminal There is only one communication link between them, which saves the communication link.
  • the half-duplex communication mode the timeliness and accuracy of timing message transmission are ensured, and the application scenarios of the half-duplex communication mode are increased.
  • the seventh embodiment of the present application relates to a terminal, whose structural block diagram is shown in FIG. 13 , the electronic device includes: at least one processor 701 ; and a memory 702 communicatively connected to the at least one processor 701 ; wherein the memory 702 stores There are instructions executable by the at least one processor 701, the instructions being executed by the at least one processor 701 to enable the at least one processor 701 to perform the above-described method of message transmission.
  • the memory and the processor are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus links one or more processors and various circuits of the memory together.
  • the bus may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface between the bus and the transceiver.
  • a transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium.
  • the data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor.
  • the processor manages the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory may be used to store data used by the processor in performing operations.
  • the eighth embodiment of the present application relates to a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above-mentioned message transmission method is implemented.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

Abstract

本实施例涉及通信领域，特别涉及一种消息传输的方法、终端及存储介质。本申请实施例提供的消息传输的方法，应用于第一终端，所述第一终端与第二终端之间采用半双工通信模式，所述方法包括：获取待传输消息的消息类型，消息类型包括：定时类别和临时类别；若判定所述待传输消息为定时消息，则为所述定时消息分配对应的传输保护时段；优先在所述传输保护时段内向所述第二终端传输所述定时消息，以供所述第二终端执行与所述定时消息对应的操作，其中，所述传输保护时段用于传输所述定时消息。

Description

消息传输的方法、终端及存储介质
相关申请的交叉引用
本申请基于申请号为“202011480289.3”、申请日为2020年12月15日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信领域，特别涉及一种消息传输的方法、终端及存储介质。
背景技术
目前在端对端的通信中，按照时分情况可以分为单工、全双工和半双工模式，其中，半双工模式传输效率低，但是半双工模式可以节约传输线路，故半双工的传输模式仍被广泛应用，例如，应用于对传输速率、消息接收的及时性不高的场景。
半双工通信，即通信的双方都可以发送信息，但不能双方同时发送，也不能同时接收。半双工通信方式同一时刻只能一方发送信息，另一方接收信息，这导致通信双方的消息传输不及时；然而，某些半双工通信场景中仍存在少量消息对时效性和准确性有着较高的要求，而由于采用了半双工通信模式，导致通信双方不能及时收发消息，影响设备的运行，例如，终端/基站与天线设备之间的通信中功放控制命令对时效性和准确性有较高要求，而终端/基站与天线设备之间采用半双工的通信模式，只能使用一条传输线路进行消息的发送，消息传输速度慢，导致终端不能准确及时控制天线设备的功放模块上/下电，影响天线设备的运行。
发明内容
本申请实施例提供了一种消息传输的方法，应用于第一终端，所述第一终端与第二终端之间采用半双工通信模式，所述方法包括：获取待传输消息的消息类型，消息类型包括：定时类别和临时类别；若判定所述待传输消息为定时消息，则为所述定时消息分配对应的传输保护时段；优先在所述传输保护时段内向所述第二终端传输所述定时消息，以供所述第二终端执行与所述定时消息对应的操作，其中，所述传输保护时段用于传输所述定时消息。
本申请实施例还提供了一种终端，包括：至少一个处理器；以及，与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行上述的消息传输的方法。
本申请实施例还提供了一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时实现上述的消息传输的方法。
附图说明
图1是根据本申请第一实施例中提供的消息传输的方法的流程图；
图2是根据本申请第二实施例中提供第一终端和第二终端连接的示意图；
图3是根据本申请第二实施例中提供的消息传输的方法的流程图；
图4是根据本申请第二实施例中提供的消息传输的方法中高优先级别的消息的帧结构示意图；
图5是根据本申请第二实施例中提供的消息传输的方法中低优先级别的消息的帧结构示意图；
图6是根据本申请第二实施例中提供的消息传输的方法中传输消息的时序图示意图；
图7是根据本申请第三实施例中提供的消息传输的方法中获取临时消息的发送时刻的一种实现示意图；
图8是根据本申请第四实施例中提供的消息传输的方法的流程图；
图9是根据本申请第五实施例中提供的消息传输的方法传输高优先级别的消息的实现示意图；
图10是根据本申请第五实施例中提供的消息传输的方法中航空设备与天线设备之间的传输消息的通信过程示意图；
图11是根据本申请第五实施例中提供的消息传输的方法中航空设备与天线设备之间的传输消息的时序图；
图12是根据本申请第六实施例中提供的消息传输的方法的流程图；
图13是根据本申请第七实施例中提供的终端的结构框图。
具体实施方式
本申请实施例的主要目的在于提出一种消息传输的方法、终端及存储介质，能够保证终端之间的消息传输的及时性和准确性。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
本申请的第一实施方式涉及一种消息传输的方法，应用于第一终端，第一终端与第二终端之间采用半双工通信模式，其流程如图1所示：
步骤101：获取待传输消息的消息类型，该消息类型包括：定时类别和临时类别。
步骤102：若判定待传输消息为定时消息，则为定时消息分配对应的传输保护时段；优先在传输保护时段内向第二终端传输定时消息，以供第二终端执行与定时消息对应的操作，其中，传输保护时段用于传输定时消息。
本申请中的消息传输的方法，获取待传输消息的消息类型，消息类型包括定时类别和临时类别，若该待传输消息为定时消息时，为该定时消息分配对应的传输保护时段，并优先在对应的传输保护时段内向第二终端传输该定时消息，由于该定时消息有对应的传输保护时段，使得该定时消息独占该传输保护时段，确保该定时消息的及时传输至第二终端，使得第二终端可以及时执行与该定时消息对应的操作，实现第一终端对第二终端的准确控制；同时，第一终端和第二终端之间采用半双工通信模式，即第一终端和第二终端之间只有一条通信链路，节约了通信链路，在半双工通信模式下，确保定时消息传输的及时性和准确性，增加了半双 工通信模式的应用场景。
本申请的第二实施方式涉及一种消息传输的方法，本第二实施方式是对第一实施方式中步骤101至步骤102的具体说明。
为了便于理解，本示例中对第一终端和第二终端进行介绍。具体地，该消息传输的方法可以应用于第一终端，该第一终端可以是基站设备，终端设备如，航空设备等，第二终端可以基站设备，通信设备如天线设备等。本示例中，第一终端和第二终端为主从关系，即第一终端设备为主设备，第二终端设备为从设备，主设备用于对从设备进行控制。该第一终端和第二终端之间采用半双工通信模式，在该半双工通信模式下，第一终端可以向第二终端发送消息，第二终端可以向第一终端发送消息。
该第一终端C200和第二终端D200的一种结构示意图如图2所示，该第一终端可以包括：消息接口C201、第一获取模块C202、第二获取模块C203、消息处理模块C204以及传输模块C205以及传输接口C206。其中，消息接口C201和传输接口C206为实体的接口，该消息接口C201用于与软件高层进行信息交互，该消息接收接口C201可以包括：网口、SPI、Serdes等。可以理解的是，该第一终端的软件高层之间的信息交互可以使用不同的接口协议。传输接口C206可以采用不同时分形式的器件，用于将数字信号调制解调，该传输接口C206可以采用同轴电缆、光纤、双绞线等媒介。第一获取模块C202、第二获取模块C203、消息处理模块C204以及传输模块C205为本示例中的逻辑模块，该第一获取模块C202用于获取待传输消息的传输优先级别；第二获取模块C203用于获取为定时消息分配的传输保护时段，传输保护时段用于传输定时消息；消息处理模块C204可以用于对待传输消息进行编码或解码；传输模块C205用于若判定待传输消息为定时消息，则在该定时消息对应的传输保护时段内向第二终端传输该定时消息，以供第二终端执行与该定时消息对应的操作。
同理，该第二终端也可以采用与第一终端类似的结构，如图2所示，该二终端包括：消息接口D201、接收模块D202、消息处理模块D203、操作模块D204以及传输接口D205。第一终端的传输接口C206与第二终端的传输接口D205连接。消息接口D201用于与软件高层进行信息交互；接收模块D202用于在传输保护时段内接收第一终端发送的定时消息，传输保护时段用于供第一终端定时消息。消息处理模块D203用于解码或编码消息；操作模块D204用于执行与定时消息对应的操作。第一终端和第二终端采用如图2所示的方式连接，可以理解的是，该第一终端和第二终端还可以包括其他的模块，此处不再进行一一列举。
本示例中第一终端以航空设备为例，第二终端以天线设备为例。该航空设备与天线设备组网。航空设备的消息接口为10G网口，消息的解包、格式转换均在软件层面完成。航空终端设备和天线设备的信号传输采用的是同轴电缆，数字信号传输协议使用的是串口协议，经过二进制振幅键控(OOK：On-Off Keying)调制后转换成模拟调幅信号进行传输。
本实施例中消息传输的方法的流程如图3所示：
步骤201：获取待传输消息的消息类型，该消息类型包括：定时类别和临时类别。
具体地，可以预先设置待传输消息的传输类别，其中，定时消息是对实时性及准确性较高的消息，可以是周期性且不可丢弃的消息，例如，定时消息可以包括：控制天线设备的功放的指令、用于指示天线设备开始向第一终端发送信息的开始指令，以及指示天线设备结束向第一终端结束发送信息的结束指令。临时消息可以是非周期性的消息，可以如握手请求等。临时消息可以包括：天线状态查询、端口工作状态查询、端口工作模式查询、进入/退出线损 测试模式、线损测试消息、线损测试结果消息、天线软/硬件版本查询、天线SN号查询、设置天线端口波束命令、天线温度查询、固件升级启动/继续/结束命令、查询固件升级版本CRC校验结果命令、进入收/发测试模式命令、进入收发诊断模式命令、天线生产厂商查询等。
在一个例子中，定时消息的帧结构包括：消息头、消息内容和消息尾；临时消息的帧结构包括：消息头、加扰序列、消息类型、消息内容、校验值以及消息尾。
具体地，可以设置定时消息的帧结构包括：消息头、消息内容和消息尾。该帧结构如图4所示，定时消息的帧结构包括长度为a Byte的消息头、b Byte的消息内容以及c Byte的消息尾。定时消息中消息内容的长度通常较短，从而可以确保消息内容中不会出现和消息头或消息尾重复的内容，确保该消息内容可以被完整识别。
临时消息的帧结构如图5所示，包括：a Byte的消息头、b Byte的加扰序列、c Byte的消息类型、消息内容的长度为1～n Byte、d Byte的CRC校验值及e Byte的消息尾。临时消息中的消息内容较长，故设置加扰序列以避免出现消息内容和消息头中的标志位存在相同字段，同理设置CRC校验值避免消息尾和消息内容中的标志位存在相同字段。
本实施例中可以选取本原多项式对消息进行了加扰处理，例如，本实例中本原多项式可以是m(x)＝(x 8+x 4+x 3+x+1)对消息进行加扰处理，其中，m(x)表示扰码序列；并对加扰完成的码流按照HDLC协议进行了编码处理。
步骤202：判断该待传输消息是否为定时消息，若判定该待传输消息为定时消息，则执行步骤203，若判定该待传输消息的临时消息，则执行步骤204。
具体地，判断待传输消息的是否为定时消息，判断的方法有多种，下面将列举其中的三种判断方式。
方式一：获取软件高层下发的传输类别。
该待传输消息由软件高层下发，软件高层在下发该待传输消息时，对应下发该待传输消息的传输类别，例如，软件高层下发了待传输消息A，对应下发与该待传输消息A的传输类别为定时类别。
方式二：根据待传输消息中的消息头确定传输类别。
具体地，可以在该待传输消息中的消息头标记传输类别，通过识别消息头判断该待传输消息的传输类别。
方法三：根据待传输消息的帧结构识别传输类别。
具体地，定时消息包括消息头、消息内容和消息尾；而临时消息包括消息头、加扰序列、消息类型、消息内容、校验值以及消息尾。因此，若识别该待传输消息的帧结构包括3个部分，则判定该待传输消息为定时消息，若识别该待传输消息的帧结构包括6个部分，则判定该待传输消息为临时消息。
需要说明的是，除了以上三种判断方式还可以采用其他的判断方式，例如，将周期性的消息作为定时消息，若识别该待传输消息为周期性消息，那么判定该待传输消息为定时消息。
若判定该待传输消息为定时消息，则执行步骤203，若判定该待传输消息为临时消息，则执行步骤204。
步骤203：为定时消息分配对应的传输保护时段；优先在传输保护时段内向第二终端传输定时消息，以供第二终端执行与定时消息对应的操作，其中，传输保护时段用于传输定时消息。
具体地，可以根据周期性的消息在每个传输周期分配对应的传输保护时段，也可以在间隔预设传输周期分配传输保护时段，传输保护时段的周期可以根据实际需要进行分配。例如，若定时消息包括周期性的消息，那么可以根据该定时消息的周期性分配该传输保护时段。该传输保护时段用于传输定时消息，也即独占该传输保护时段以传输该定时消息。
该传输保护时段的时间长度可以根据定时消息的消息长度和数量确定，以使该传输保护时段的长度W应大于待发送的定时消息的总体发送时间，以确保在传输保护时段内可以完整传输该定时消息。
在位该定时消息分配了对应的传输保护时段之后，在检测到传输保护时段的起始时刻，优先在该传输保护时段内向第二终端传输该定时消息，第二终端接收到该定时消息后，执行对应的操作。下面以一个具体的例子进行说明。
例如，待传输消息为功放控制的上电指令，如图6所示传输消息的时序图，传输周期为T，图6中示出了3个传输周期，为每个传输周期对应分配有传输保护时段(如图4中的斜线方框A)，在第一个传输周期中，该传输保护时段的长度为W，当检测T200时刻时，在该传输保护时段A内传输该功放控制的上电指令，第二终端接收到该功放控制的上电指令后，进行功放上电操作。
步骤204：获取临时消息的发送时刻，该发送时刻处于当前传输保护时段与下一个传输保护时段之间的时段内。
具体地，若为临时消息，可以在当前传输保护时段与下一个传输保护时段之间的时段内设置该临时消息的发送时刻。例如，若当前传输保护时段与下一个传输保护时段之间的时段为T1～T3，可以在该T1～T3之间选择一个时刻作为该临时消息的发送时刻。
步骤205：获取与下一个传输保护时段的开始时刻相距第一预设时长的阈值时刻。
具体地，获取下一个传输保护时段的开始时刻，将与该开始时刻相距第一预设时长的时刻作为阈值时刻，第一预设时长可以根据实际应用进行设置，第一预设时长可以是临时消息传输的最大时长，例如，第一预设时长可以是120ms。
在另一个例子中，获取临时消息的传输时长；将大于等于该传输时长的时长作为该第一预设时长。
具体地，可以获取该临时消息的传输时长，获取大于或等于该传输时长的时长作为第一预设时长，例如，该临时消息的传输时长为60ms,那么可以选取大于等于该60ms的时长作为第一预设时长，如第一预设时长为60ms、70ms等。
步骤206：判断发送时刻是否在阈值时刻之前，若是，则执行步骤207，否则，执行步骤208。
若该发送时刻早于该阈值时刻之前，表明从该发送时刻开始传输该临时消息，可以在下一个传输保护时段之前将该临时消息传输完毕；故可以执行步骤207。若该发送时刻晚于该阈值时刻，则确定该临时消息在下一个传输保护时段开始之前不能传输完毕，此时，调整该临时消息的发送时刻，以避免该临时消息被传输保护时段打断而导致该临时消息传输不完整，或者避免出现重新传输该临时消息的问题。
步骤207：在发送时刻传输临时消息。
步骤208：调整发送时刻至下一个传输保护时段之后。
具体地，调整该发送时刻，由于在下一个传输保护时段开始之前不能发送完该临时消息， 故可以将该发送时刻调整至下一个传输保护时段之后的时段内。例如，如图6所示，临时消息的发送时刻为t0,位于传输保护时段A与传输保护时段B之间的d1时段内，若t0晚于该阈值时刻td；那么将该临时消息的发送时刻调整至传输保护时段B之后的时段内，如可以是传输保护时段B与传输保护时段C之间d2时段内,也可以是d3时段内。
本实施例中，若确定了待传输消息为临时消息时，对发送时刻进行检测，可以确保临时消息传输的完整性，避免出现在未完成临时消息传输时，被下一个传输保护时段打断而导致临时消息传输失败的情况，同时，若传输链路支持重传，也可以避免出现传输链路重复传输临时消息的情况，减少链路的不必要的损耗，提高传输链路的传输效率。
本申请的第三实施方式涉及一种消息传输的方法，本实施方式是对第二实施方式中获取临时消息的发送时刻的详细介绍，获取临时消息的发送时刻的流程如7图所示：
步骤S31：判断当前传输链路是否被占用，若是，则执行步骤S32，若当前传输链路为空且存储库为空，则执行步骤S33。
步骤S32：若检测到当前传输链路被占用，则获取临时消息的传输优先级别，并按照传输优先级别指示的从高到低的顺序，确定当前传输保护时段与下一个传输保护时段之间的时段内待发送的临时消息，并获取待发送的临时消息的发送时刻，将未被确定发送时刻的其他临时消息缓存至存储库中。
具体地，每个临时消息具有对应的传输优先级别，若接收到的是临时消息且当前传输链路被占用，则可以获取该临时消息的传输优先级别，获取当前该临时消息的传输优先级别。
可以在相邻的两个传输保护时段之间的时段内按照传输优先级别指示的从高到低的顺序，将当前接收的消息或缓存的临时消息传输至第二终端。
判断该传输优先级别是否位最高优先级别，若是，则在传输保护时段之外的时段内优先传输优先级别高的临时消息。若该临时消息的优先级别高于当前正在发送的消息的优先级别，由于该临时消息的优先级别高于当前正在发送的消息的优先级别，可以优先在传输保护时段之外的时段内传输该临时消息，故可以确定出当前该临时消息的发送时刻处于当前传输保护时段之外的时段内；若该临时消息的优先级别与占用该传输链路的消息的优先级别相同，可以将当前接收的临时消息进行缓存；若当前接收的临时消息的优先级别低于占用该传输链路的消息的优先级别，可以按照该临时消息进行缓存。
需要说明的是，存储库中可以按照消息的优先级别由高到低的顺序进行缓存，以便可以优先取出高优先级别的临时消息。存储库也可以直接缓存该临时消息。
按照传输优先级别指示的由高到低的顺序从存储库中获取消息，即优先获取高优先级别的临时消息，再获取低优先级别的临时消息，进一步保证高优先级别的临时消息的及时传输。
步骤S33：若检测到当前传输链路为空且存储库为空，则获取临时消息的发送时刻。
若检测到当前传输链路为空，且存储库为空时，若接收到了临时消息，由于没有其他的临时消息被存储或占用传输链路，因此，可以在当前传输保护时段与下一传输保护时段之间的时段内直接确定该临时消息的发送时刻。
具体地，如图6所示，传输保护时段A用于传输了定时消息，该传输保护时段A和传输保护时段B之间的时段d1可以用于传输临时消息。
可以理解的是，在相邻传输保护时段之间的时段内传输低优先级别的临时消息时，若接收到高优先级别的临时消息时，将停止传输低优先级别的临时消息，在该相邻保护时段内传 输收到的高优先级别的消息；再高优先级别的临时消息传输完毕之后，在相邻保护时段之间的时段内传输该低优先级别的临时消息。
本申请实施例中通过为定时消息分配对应的传输保护时段，使得该定时消息独占传输保护时段，确保了第二终端可以及时接收到对及时性和准确性要求高的定时消息；而在传输保护时段之外的时段内传输临时消息，临时消息对及时性和准确性要求低，无需实时进行传输；按照传输优先级别指示从高到低的顺序在传输保护时段之外的时段内传输临时消息，确保了高优先级别的临时消息的及时传输，提高了半双工通信模式的传输效率。
本申请的第四实施方式涉及一种消息传输的方法，本实施方式是对上述实施方式的进一步的改进，主要改进之处在于，在本第四实施方式中，若检测到传输链路为空且存储库为空，则生成开始指令，以使第二终端可以向该第一终端传输消息。其流程如图8所示。
步骤401：若检测到当前传输链路为空且存储库为空，则生成用于指示第二终端开始向第一终端传输信息的开始指令，存储库用于缓存临时消息。
具体地，若待传输链路为空且检测到存储库为空，表明当前第一终端没有需要传输的消息，则第一终端可以控制第二终端传输信息；该第一终端生成该开始指令，该开始指令用于指示该第二终端开始向第一终端传输信息，该开始指令的类别为定时类别。
步骤402：传输开始指令。
具体地，可以为开始指令分配对应的传输保护时段，在与对应的传输保护时段结束时刻相距第三时长的时刻开始传输该开始指令。获取该传输保护时段的结束时刻以及该开始指令的传输时长，根据传输保护时段的结束时刻和开始指令的传输时长，确定该开始指令的开始时刻，以使该在传输保护时段结束时完成该开始指令的传输。例如，若开始指令传输时长为a；传输保护时段的结束时刻为tb；那么传输该开始指令的时刻为tb-a。
由于在距离该传输保护时段结束时刻第二预设时长的时刻传输开始指令，第二预设时长可以为该开始指令的传输时长，从而可以确保在该传输保护时段内开始指令的传输不会占据传输保护时段中过多的时长。
在另一个例子中，由于此时没有待传输的其他消息，也可以直接在相邻传输保护时段之间的时段内传输该开始指令。
步骤404：在与发送开始指令的时刻相距第二预设时长后，生成用于指示第二终端结束传输信息的结束指令。
具体地，第二预设时长可以是在根据实际应用进行设置，例如，该第二预设时长可以是该第一终端接收到第二终端传输的信息的时长，还可以设置为距离下一个传输保护时段开始的最大时长。结束指令，指示第二终端停止传输信息。
步骤405：为结束指令分配对应的传输保护时段，在对应的传输保护时段的开始时刻传输结束指令。
为结束指令分配对应的传输保护时段的步骤与第二实施方式中的步骤202大致相同，此处将不再进行赘述。
在传输保护时段开始时传输结束指令，使得若接收到其他的定时消息后，可以将该传输保护时段的后续时段分配给其他定时消息，减少该结束指令对传输其他定时消息的影响。
需要说明的是，第一终端将开始指令发送至第二终端，第二终端在两个传输保护时段之间的时段内向第一终端传输反馈信息；第二终端占用相邻两个传输保护时段之间的时段传输 该反馈信息，如图6中所示的d1时段用于传输该反馈信息。其中，反馈信息可以包括：第二终端的状态信息等，例如，第二终端为天线设备时，该反馈信息可以包括天线设备状态信息，如温度、天线角度等信息。若上一次第一终端接收到第二终端传输的反馈信息后，则生成结束指令，结束指令用于指示第二终端结束信息的传输；将结束指令传输至第二终端，第二终端接收到该结束指令后，停止向该第一终端发送信息。
本实施例中的消息传输的方法，在第一终端没有需要传输的消息后，第一终端通过传输的开始指令，控制第二终端向第一终端传输信息，并在接收到第二终端传输的信息后，通过发送结束指令，控制第二终端停止信息的传输，第二终端的信息传输受到第一终端的控制，使得在半双工通信模式下，第一终端控制第二终端发送消息，确保第二终端发送消息不会影响第一终端的消息发送。
本申请的第五实施方式涉及一种消息传输的方法，本实施例是对第一实施例中步骤102、第二实施例中步骤202的另一种实现方式，该实现方式的具体流程如图9所示：
步骤501：若检测到定时消息为同步操作的指令，则获取第一终端与第二终端的同步时刻。
具体地，同步操作的指令可以是指示周期性操作的指令，例如，天线设备的收发切换操作需要与航空设备完全同步，通信领域中收发切换操作大都具有周期性要求，航空终端设备和天线设备需要同时控制各自的功放的上电/下电、或者同时控制各自收/发开关的切换；从而保证通信功能正常。同步操作的指令可以是控制功放上电/下电的指令，还可以是控制天线收/发开关切换的指令。再如，若检测到定时消息为控制功放的指令，则获取该第一终端与第二终端之间待同步操作的同步时刻。
步骤502：根据预设的提前时长以及同步时刻，在传输保护时段内向第二终端传输该定时消息，以使第二终端在同步时刻执行与定时消息对应的操作。
具体地，提前时长可以预先设置，该提前时长可以根据第二终端解析完消息的时长确定；例如，若第一终端对定时消息进行调制的时长为20us，该定时消息的传输时延为242us、第二终端解析该定时消息的时延为23us，那么该提前时长＝20us+242us+23us，即提前时长为285us；那么第一终端可以在同步时刻前的285us发送该控制功放的指令，使得第二终端的执行操作的时刻与该第一终端执行操作的时刻同步。
由于天线侧不具备单独进行收发切换的能力，通过提前传输定时消息，使得天线设备的功放上电/下电的操作与航空设备完全同步。
本实施例中的消息传输的方法，通过在同步时刻之前提前发送控制功放的指令，使得第二终端可以与第一终端准确实现同步。
为了便于理解，下面结合附图10和图11介绍航空设备与天线设备之间的传输消息的过程。
本实施例中，天线设备的功放上下电的操作需要与航空终端设备完全同步，且具备周期性，消息的发送周期为T＝20ms，传输保护时段的长度为W＝3ms，每传输周期内传输保护时段总长6ms。考虑到端到端的时延，主要包括发送端调制时延20us、传输时延242us、收端解析时延23us，即总时延285us，每一条天线设备功放上下电消息均提前了285us发送，图10中的Protect表示传输保护时段。
M001：航空设备发送天线设备控制功放上电的指令；
M002：航空设备发送握手请求消息；
M003：航空设备发送天线设备发送开始指令；
M004：天线设备发送握手回应消息；
M005：航空设备发送天线设备发送结束指令；
M006：航空设备发送天线设备状态查询消息；
M007：航空设备发送天线设备角度查询消息；
M008：航空设备发送天线设备角度控制消息；
M009：航空设备发送天线设备控制功放上电的指令；
M010：航空设备发送天线设备发送开始指令；
M011：天线设备发送天线设备状态上报消息；
M012：天线设备发送天线设备角度上报消息；
M013：航空设备发送天线设备发送结束指令；
M014：航空设备发送天线设备控制功放下电的指令；
M015：航空设备发送天线设备发送开始指令；
M016：天线设备发送天线设备角度更新消息。
本申请的第六实施方式涉及一种消息传输的方法，应用于第二终端，所述第二终端与第一终端之间采用半双工通信模式，该消息传输的方法的流程如图12所示。
步骤601：在预设的传输保护时段内接收第一终端发送的定时消息，传输保护时段用于供第一终端传输定时消息，其中，消息类别包括：定时类别和临时类别。
具体地，该第二终端接收第一终端发送的定时消息，该第二终端接收到定时消息后，可以对该定时消息进行解码，并获取该接收的定时消息的类别，可以优先处理该定时消息对应的操作。例如，若定时消息为功放上电的指令信息，则第二终端优先进行功放上电操作。
步骤602：执行与该定时消息对应的操作。
具体地，若接收到的定时消息为开始指令，则在相邻的两个传输保护时段之间的时段内向第一终端发送反馈信息。反馈信息可以包括：第二终端的状态信息等，例如，第二终端为天线设备时，该反馈信息可以包括天线设备状态信息，如温度、天线角度等信息。
第一终端获取该传输保护时段的结束时刻以及该开始指令的传输时长，在与对应的传输保护时段结束时刻相距第二预设时长的时刻开始传输该开始指令，以使该在传输保护时段结束时完成该开始指令的传输。例如，若开始指令传输时长为a；传输保护时段的结束时刻为tb；那么传输该开始指令的时刻为tb-a。
由于在传输保护时段结束时完成该开始指令的传输，可以确保在该传输保护时段内开始指令的传输不会占据传输保护时段中过多的时长。
若接收到结束指令，则结束反馈信息的传输，结束指令由第一终端在本次传输保护时段的开始时刻发送。
具体地，第一终端接收到该第二终端传输的信息后，生成结束指令，该结束指令用于指示该第二终端结束传输信息，在下一个传输保护时段内收到该结束指令，第二终端将停止向第一终端传输信息。
第一终端在传输保护时段开始时传输结束指令，使得该传输保护时段内的后续时长可以传输其他高优先级别的消息，不影响第一终端传输消息。
本申请中的消息传输的方法，获取待传输消息的消息类型，消息类型包括定时类别和临时类别，若该待传输消息为定时消息时，为该定时消息分配对应的传输保护时段，并优先在对应的传输保护时段内向第二终端传输该定时消息，由于该定时消息有对应的传输保护时段，使得该定时消息独占该传输保护时段，确保该定时消息的及时传输至第二终端，使得第二终端可以及时执行与该定时消息对应的操作，实现第一终端对第二终端的准确控制；同时，第一终端和第二终端之间采用半双工通信模式，即第一终端和第二终端之间只有一条通信链路，节约了通信链路，在半双工通信模式下，确保定时消息传输的及时性和准确性，增加了半双工通信模式的应用场景。
本申请第七实施方式涉及一种终端，其结构框图如图13所示，该电子设备包括：至少一个处理器701；以及，与至少一个处理器701通信连接的存储器702；其中，存储器702存储有可被至少一个处理器701执行的指令，指令被至少一个处理器701执行，以使至少一个处理器701能够执行上述的消息传输的方法。
其中，存储器和处理器采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器和存储器的各种电路链接在一起。总线还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口在总线和收发机之间提供接口。收发机可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器处理的数据通过天线在无线介质上进行传输，进一步，天线还接收数据并将数据传送给处理器。
处理器负责管理总线和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器可以被用于存储处理器在执行操作时所使用的数据。
本申请第八实施方式涉及一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时实现上述的消息传输的方法。
本领域技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种消息传输的方法，应用于第一终端，所述第一终端与第二终端之间采用半双工通信模式，所述方法包括：
    获取待传输消息的消息类型，所述消息类型包括：定时类别和临时类别；
    若判定所述待传输消息为定时消息，则为所述定时消息分配对应的传输保护时段；优先在所述传输保护时段内向所述第二终端传输所述定时消息，以供所述第二终端执行与所述定时消息对应的操作，其中，所述传输保护时段用于传输所述定时消息。
  2. 根据权利要求1所述的消息传输的方法，其中，若判定所述待传输消息为临时消息，所述方法还包括：
    获取所述临时消息的发送时刻，所述发送时刻处于当前所述传输保护时段与下一个所述传输保护时段之间的时段内；
    获取与下一个所述传输保护时段的开始时刻相距第一预设时长的阈值时刻；
    判断所述发送时刻是否在所述阈值时刻之前，若是，则在所述发送时刻传输所述临时消息，否则，调整所述发送时刻至下一个所述传输保护时段之后。
  3. 根据权利要求2所述的消息传输的方法，其中，在所述获取与下一个所述传输保护时段的开始时刻相距第一预设时长的阈值时刻之前，所述方法还包括：
    获取所述临时消息的传输时长；
    将大于等于所述传输时长的时长作为所述第一预设时长。
  4. 根据权利要求2或3所述的消息传输的方法，其中，所述获取所述临时消息的发送时刻，包括：
    若检测到当前传输链路被占用，则获取所述临时消息的传输优先级别，并按照所述传输优先级别指示的从高到低的顺序，确定当前所述传输保护时段与下一个所述传输保护时段之间的时段内待发送的临时消息，并获取所述待发送的临时消息的发送时刻，将未被确定发送时刻的其他临时消息缓存至存储库中；
    若检测到当前传输链路为空且所述存储库为空，则直接确定所述临时消息的发送时刻处于当前所述传输保护时段与下一个所述传输保护时段之间的时段内。
  5. 根据权利要求1至4中任一项所述的消息传输的方法，其中，所述方法还包括：
    若检测到当前传输链路为空且存储库为空，则生成用于指示所述第二终端开始向所述第一终端传输信息的开始指令，所述存储库用于缓存所述临时消息；
    在与发送所述开始指令的时刻相距第二预设时长后，生成用于指示所述第二终端结束传输信息的结束指令。
  6. 根据权利要求5所述的消息传输的方法，其中，若生成了所述结束指令，所述方法还包括：
    在当前所述传输保护时段的开始时刻传输所述结束指令。
  7. 根据权利要求1至6中任一项所述的消息传输的方法，其中，所述优先在所述传输保 护时段内向所述第二终端传输所述定时消息，包括：
    若检测到所述定时消息为同步操作的指令，则获取所述第一终端与所述第二终端的同步时刻；
    根据预设的提前时长以及所述同步时刻，在所述传输保护时段内向所述第二终端传输所述同步操作的指令，以使所述第二终端在所述同步时刻执行与所述同步操作的指令对应的操作。
  8. 根据权利要求1至7中任一项所述的消息传输的方法，其中，所述定时消息的帧结构包括：消息头、消息内容和消息尾；
    所述临时消息的帧结构包括：消息头、加扰序列、消息类型、消息内容、校验值以及消息尾。
  9. 一种终端，包括：至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至8中任一所述的消息传输的方法。
  10. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至8中任一项所述的消息传输的方法。
PCT/CN2021/129611 2020-12-15 2021-11-09 消息传输的方法、终端及存储介质 WO2022127448A1 (zh)

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