CN115567184B

CN115567184B - Method, apparatus and storage medium for adjusting time slot of virtual channel based on segment layer

Info

Publication number: CN115567184B
Application number: CN202211523194.4A
Authority: CN
Inventors: 王佳增; 闫晓亮; 韩雍博
Original assignee: Galaxyspace Beijing Communication Technology Co ltd
Current assignee: Galaxyspace Beijing Communication Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-07
Anticipated expiration: 2042-12-01
Also published as: CN115567184A

Abstract

The application discloses a method, a device and a storage medium for adjusting time slots of virtual channels based on a segmentation layer, which are used for a satellite remote control sending system, wherein a packaging layer, the segmentation layer and a transmission layer are arranged in the satellite remote control sending system, and the method comprises the following steps: the packaging layer receives remote control application data from a plurality of information sources and generates remote control packets respectively corresponding to the plurality of information sources; the segmentation layer receives the remote control packet and generates remote control segments corresponding to the plurality of information sources according to the remote control packet; the segment layer determines scheduling configuration information for scheduling among a plurality of information sources; and the transmission layer establishes virtual channels respectively corresponding to the plurality of information sources and adjusts the time slot length of the virtual channels according to the proportional relation indicated by the scheduling configuration information. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority, the scheduling mechanism based on the priority is not required to be additionally introduced into the transmission layer, and the cost is further reduced is achieved.

Description

Method, device and storage medium for adjusting time slot of virtual channel based on segmentation layer

Technical Field

The present application relates to the field of aerospace remote control technologies, and in particular, to a method and an apparatus for adjusting a time slot of a virtual channel based on a segment layer, and a storage medium.

Background

The publication number is CN110429967A, the name is an invention of a packet remote control telemetry system channel gateway, comprising: the uplink remote control data input interface is used for decoding information processing by the spread spectrum signal through a CCSDS data format and transmitting the decoded information to an instruction user or a CPU; and a downlink telemetering data output interface, a CPU whole satellite telemetering code and a spread spectrum transponder are sent to the ground. The channel gateway of the sub-packet remote control and remote measurement system provided by the invention adopts BCH coding, can adapt to the sub-packet remote control and remote measurement and control system, is used as a new generation satellite remote control platform, and is the function upgrade of the traditional remote control product.

The publication number is CN113507311A, which is named as an invention of a control display device for satellite terrestrial application system channel equipment, and the invention comprises a control processing board, a display screen, a control keyboard and processing software: controlling the processing board to remotely control or locally control the equipment, and monitoring the temperature and the working state of the equipment; the display screen displays equipment states, including parameters of channel equipment, internal temperature, power supply voltage, remote control or local control states and fault alarm information; the control keyboard provides an interface of the control input equipment; the processing software is installed on the control processing board, remotely controls or locally controls the equipment and monitors the temperature and the state; the universal device is provided for the satellite ground application system channel equipment, the hardware variety is simplified, the equipment cost is reduced, and the operation applicability of the control display device is improved.

The subpackage remote control technology is widely applied to data transmission between a satellite remote control sending system and spacecrafts such as satellites. Through sub-packet remote control, the satellite remote control sending system can transmit remote control application data to the spacecraft, and therefore updating of the application data on the spacecraft is achieved. Fig. 1A shows a hierarchical structure of a satellite remote control transmission system. Referring to fig. 1A, the hierarchical structure of the packet remote control system includes a wrapper layer, a segment layer, a transport layer, a channel coding layer, and a physical layer. In the satellite remote control transmission system (i.e. the transmitting end), a remote control packet (i.e. a remote control user data unit) is formed after a packet header is added to remote control application data in a packaging layer. After the remote control packet is segmented or assembled in a segmentation layer, a segment header is added to form a remote control segment (or a remote control transmission frame data unit). At the transmission layer, the remote transport frame data unit is put into the data field of the remote transport frame, and the frame head is arranged in front of the remote transport frame data unit, and the error control code is optionally arranged behind the remote transport frame data unit as the frame tail. At the channel coding layer, a remote transport frame is block coded into a series of fixed-length code blocks having error correction and detection capabilities. And, the block code sequence is repackaged into a remote control channel transmission unit, each unit may contain one or more remote control transmission frames. And finally, in a physical layer, the remote control channel transmission units are modulated onto a physical channel and send the physical channel to the spacecraft. And the spacecraft (i.e. the receiving end) completes the reverse process of the operation. Further, fig. 1B shows a schematic diagram of a packetized remote control data structure of each layer process. And after receiving the remote control transmission frame, the spacecraft transmits a remote control channel control word (namely feedback information) corresponding to the remote control transmission frame to a satellite remote control transmission system in a packet telemetry mode.

The main functions of the segmented layer are: grouping the incoming remote control packets (or remote control user data units) into remote control segments includes dividing a long remote control packet (or remote control user data unit) into several shorter remote control segments. The segment head of the remote control segment comprises a receiving address pointer corresponding to the application process of the spacecraft.

The prior art proposes that the transport layer can divide the physical channel into 64 virtual channels, each of which can then be divided into 64 receiving address pointers, so that the physical channel can be divided into 4096 transmission paths from the source to the application.

In practical applications, however, the number of application processes deployed on a spacecraft is typically less than 64, and therefore the transmission path required to transmit remote control application data is also less than 64. That is, it is sufficient to transmit remote control application data using 64 virtual channels, and it is not necessary to divide the virtual channels using the reception address pointers.

Although in the case of large remote control application data, it is still necessary to segment the remote control packet using the segmentation layer. However, since it is sufficient to transmit the remote control application data using 64 virtual channels, the receiving address pointer of the remote control segment is not used, but a constant value is set at the segment head of the remote control segment.

However, in the actual application process, the source-to-application transmission process still needs to be scheduled. In the prior art, a scheduling mechanism based on priority can be set at the transmission layer, for example, so as to schedule the remote control transmission frame. However, since the original transport layer does not have the scheduling mechanism based on the priority, the method of setting the scheduling mechanism based on the priority in the transport layer may increase the cost.

Aiming at the technical problem that the cost is increased because a priority mechanism in a segmentation layer cannot be fully utilized to generate a scheduling mechanism based on priority and the scheduling mechanism based on priority needs to be additionally introduced into a transmission layer in the prior art, an effective solution is not provided at present.

Disclosure of Invention

Embodiments of the present disclosure provide a method, an apparatus, and a storage medium for adjusting a time slot of a virtual channel based on a segment layer, so as to at least solve a technical problem in the prior art that a priority mechanism in the segment layer cannot be fully utilized to generate a scheduling mechanism based on a priority, and a scheduling mechanism based on a priority needs to be additionally introduced to a transport layer, thereby increasing cost.

According to an aspect of the embodiments of the present disclosure, there is provided a method for adjusting a time slot of a virtual channel based on a segment layer, for a satellite remote control transmission system, where a packing layer, a segment layer, and a transport layer are disposed in the satellite remote control transmission system, including: the packaging layer receives remote control application data from a plurality of information sources and generates remote control packets respectively corresponding to the plurality of information sources; the segmentation layer receives the remote control packet and generates remote control segments corresponding to the plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to the respective information sources; the segmentation layer determines scheduling configuration information used for scheduling among a plurality of information sources, and transmits remote control segments containing different receiving address pointers to the transmission layer according to the proportional relation indicated by the scheduling configuration information; and the transmission layer creates virtual channels respectively corresponding to the plurality of information sources and adjusts the time slot length of the virtual channels according to the proportional relation indicated by the scheduling configuration information.

According to another aspect of the embodiments of the present disclosure, there is also provided a storage medium including a stored program, wherein the method of any one of the above is performed by a processor when the program is executed.

According to another aspect of the embodiments of the present disclosure, there is provided an apparatus for adjusting a time slot of a virtual channel based on a segment layer, for use in a satellite remote control transmission system, where the satellite remote control transmission system is provided with a packing layer, a segment layer, and a transport layer, including: the remote control package generation module is used for receiving remote control application data from a plurality of information sources and generating remote control packages respectively corresponding to the plurality of information sources; the remote control segment generation module is used for receiving the remote control packet and generating remote control segments corresponding to the plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to the respective information sources; the scheduling configuration information determining module is used for determining scheduling configuration information used for scheduling among a plurality of information sources, wherein the segmentation layer transmits remote control segments containing different receiving address pointers to the transmission layer according to the proportional relation indicated by the scheduling configuration information; and the time slot length adjusting module is used for creating virtual channels respectively corresponding to the plurality of information sources and adjusting the time slot length of the virtual channels according to the proportional relation indicated by the scheduling configuration information.

According to another aspect of the embodiments of the present disclosure, there is provided an apparatus for adjusting a time slot of a virtual channel based on a segment layer, for use in a satellite remote control transmission system, where the satellite remote control transmission system is provided with a packing layer, a segment layer, and a transport layer, including: a processor; and a memory coupled to the processor for providing instructions to the processor for processing the following processing steps: receiving remote control application data from a plurality of information sources and generating remote control packets respectively corresponding to the plurality of information sources; receiving a remote control packet, and generating remote control segments corresponding to a plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to respective information sources; determining scheduling configuration information for scheduling among a plurality of information sources, wherein the segmentation layer transmits remote control segments containing different receiving address pointers to the transmission layer according to a proportional relation indicated by the scheduling configuration information; and creating virtual channels corresponding to the plurality of information sources respectively, and adjusting the time slot lengths of the virtual channels according to the proportional relation indicated by the scheduling configuration information.

According to the technical scheme of the embodiment, firstly, after a packaging layer of the satellite remote control transmission system receives remote control application data transmitted by a plurality of information sources, remote control packets respectively corresponding to the plurality of information sources are generated. The segmentation layer then receives the remote control packet and generates remote control segments corresponding to the plurality of sources based on the remote control packet. Further, the segmentation layer determines scheduling configuration information for scheduling among the plurality of information sources, and transmits the remote control segment to the transport layer according to a proportional relationship indicated by the scheduling configuration information. In addition, the transport layer creates a plurality of virtual channels, and adjusts the time slot lengths of the virtual channels according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer generates a remote control transmission frame according to the received remote control segment and transmits the remote control transmission frame to the spacecraft through a virtual channel. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

FIG. 1A is a schematic diagram of a hierarchy of a satellite remote control transmission system according to the prior art;

fig. 1B is a schematic diagram of a packetized remote control data structure processed by each layer of a satellite remote control transmission system according to the existing standard;

FIG. 2 is a block diagram of a hardware structure of a computing device for implementing the method according to embodiment 1 of the present disclosure;

FIG. 3 is a schematic diagram of a satellite remote control system according to the prior art;

fig. 4 is a schematic system architecture diagram of a satellite remote control transmission system according to a first aspect of embodiment 1 of the present disclosure;

fig. 5 is a schematic architecture diagram of a segmentation layer in a satellite remote control transmission system according to a first aspect of embodiment 1 of the present disclosure;

FIG. 6 is a schematic diagram of a plurality of remote control segment queues corresponding to received address pointers in a segmentation layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 7 is a flowchart illustrating a method for adjusting a time slot of a virtual channel based on a segment layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 8 is a schematic diagram of correspondence between a plurality of sources and a plurality of applications according to the first aspect of embodiment 1 of the present disclosure;

fig. 9 is a schematic diagram of a segmentation layer proportionally transmitting remote control segments to a transport layer according to a first aspect of embodiment 1 of the present disclosure;

fig. 10A is a schematic diagram of a time slot length of a virtual channel when a transport layer does not adjust the virtual channel according to scheduling configuration information according to the first aspect of embodiment 1 of the present disclosure;

fig. 10B is a schematic diagram of a time slot length of a virtual channel after a transport layer adjusts the virtual channel according to scheduling configuration information according to the first aspect of embodiment 1 of the present disclosure;

fig. 11 is a schematic diagram of a remote control transmission frame transmitted by a transmission layer through virtual channels of different slot lengths according to the first aspect of embodiment 1 of the present disclosure;

fig. 12 is a flowchart of a method for transmitting remote control application data of a plurality of sources according to the first aspect of embodiment 1 of the present disclosure;

fig. 13 is a schematic diagram of an apparatus for adjusting time slots of a virtual channel based on a segmentation layer according to a first aspect of embodiment 2 of the present disclosure; and

fig. 14 is a schematic diagram of an apparatus for adjusting time slots of a virtual channel based on a segmentation layer according to the first aspect of embodiment 3 of the present disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

In accordance with the present embodiments, there is provided an embodiment of a method for adjusting time slots of a virtual channel based on a segmentation level, it being noted that the steps illustrated in the flowchart of the figure may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than that presented herein.

The method provided by the embodiment can be executed in a satellite remote control sending system. Fig. 2 illustrates a block diagram of a hardware architecture of a computing device for a method of adjusting time slots of a virtual channel based on a segmentation level. As shown in fig. 2, the computing device may include one or more processors (which may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory for storing data, a transmission device for communication functions, and an input/output interface. Wherein the memory, the transmission device and the input/output interface are connected with the processor through a bus. It will be understood by those skilled in the art that the structure shown in fig. 2 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computing device may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.

It should be noted that the one or more processors and/or other data processing circuitry described above may be referred to generally herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuitry may be a single, stand-alone processing module, or incorporated in whole or in part into any of the other elements in the computing device. As referred to in the disclosed embodiments, the data processing circuit acts as a processor control (e.g., selection of a variable resistance termination path connected to the interface).

The memory may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the method for adjusting time slots of virtual channels based on a segmentation layer in the embodiments of the present disclosure, and the processor may execute various functional applications and data processing by running the software programs and modules stored in the memory, that is, implement the method for adjusting time slots of virtual channels based on a segmentation layer of an application program as described above. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory located remotely from the processor, which may be connected to the computing device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The transmission device is used for receiving or transmitting data via a network. Specific examples of such networks may include wireless networks provided by communication providers of the computing devices. In one example, the transmission device includes a Network adapter (NIC) that can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.

It should be noted here that in some alternative embodiments, the computing device shown in fig. 2 described above may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that FIG. 2 is only one example of a particular specific example and is intended to illustrate the types of components that may be present in the computing devices described above.

Fig. 3 shows a satellite remote control system according to the present embodiment. Referring to fig. 3, the system includes: a satellite remote control transmission system 200 and a spacecraft 100 (such as a satellite, etc.), wherein the satellite remote control transmission system 200 transmits remote control application data to the spacecraft 100 by packet remote control via a communication channel between the satellite remote control transmission system 200 and the spacecraft 100. In addition, the spacecraft 100 receives the remote application data transmitted by the satellite remote control transmission system 200, and returns feedback information to the satellite remote control transmission system 200 by means of subpackage telemetry. Wherein the satellite remote control transmission system 200 and the computing devices of the spacecraft 100 are both adapted to the hardware architecture shown in fig. 2.

Fig. 4 shows a system architecture of the satellite remote control transmission system 200 according to the present embodiment. Fig. 5 shows a hierarchical structure of the segment layers in the satellite remote control transmission system 200 according to the present embodiment.

Referring to fig. 4, the segment layer of the satellite remote control transmission system 200 can access the preset reception address pointer configuration table and the priority configuration table to acquire information of the reception address pointer configuration table and information of the priority configuration table. In addition, the staff member can configure the receiving address pointer configuration table and the priority configuration table through the user interface. The information sources 0-n transmit the remote control application data to a packaging layer of the satellite remote control sending system 200 through the application data interface.

Referring to fig. 5, the segmentation layer in the present embodiment is provided with a segmentation processing unit, a plurality of remote control segment queues, and a remote control segment transmission unit. The segmentation processing unit may be a program unit for performing segmentation level operations, such as a thread or a process for performing segmentation level operations. And wherein the segmentation processing unit has access to a preset receive address pointer configuration table, so that the segmentation processing unit can configure the 'receive address pointer' field of the remote control segment header according to the receive address pointer configuration table.

In addition, as shown in fig. 5, the segment layer in the present embodiment is also provided with a plurality of remote control segment queues. The segmentation processing unit transmits the remote control segment to the remote control segment transmission unit through a plurality of remote control segment queues. Specifically, the plurality of remote control segment queues respectively correspond to different receiving address pointers, and are used for respectively temporarily storing and arranging the remote control segments including the corresponding receiving address pointers. Wherein the remote control segment queue i (i is more than or equal to 0 and less than or equal to n) corresponds to the receiving address pointer ADD _ i (i is more than or equal to 0 and less than or equal to n). For example, remote control segment queue 0 corresponds to receive address pointer ADD _0, remote control segment queue 1 corresponds to receive address pointer ADD _1, and so on, remote control segment queue n corresponds to receive address pointer ADD _ n.

Since the remote control segment contains different receiving address pointers, the segmentation processing unit can transmit the remote control segment to the corresponding remote control segment queue. For example, fig. 6 shows a plurality of remote control segment queues corresponding to the reception address pointers in the segmentation layer according to the present embodiment. Wherein TS _ i (i is more than or equal to 0 and less than or equal to n) represents the remote control segment with the receiving address pointer being ADD _ i. For example, TS _0 is transmitted to remote segment queue 0, TS _1is transmitted to remote segment queue 1, TS _2is transmitted to remote segment queue 2, and so on, TS _ n is transmitted to remote segment queue n. Therefore, the remote control segment queue 0 includes the remote control segments TS _0 having the receiving address pointer of 0, the remote control segment queue 1 includes the remote control segments TS _1 having the receiving address pointer of 1, the remote control segment queue 2 includes the remote control segments TS _2 having the receiving address pointer of 2, and so on, and the remote control segment queue n includes the remote control segments TS _ n having the receiving address pointer of n. Then, the remote control segment transmission unit may acquire corresponding remote control segments from the plurality of remote control segment queues and transmit to the remote control segment transmission layer.

The remote control segment transmission unit may be a program unit for performing remote control segment transmission. And wherein the remote control segment transmission unit is capable of determining the scheduling configuration information by accessing a preset priority configuration table. Then, the remote control segment transmission unit transmits the remote control segment to the transport layer according to the proportional relationship indicated by the scheduling configuration information.

Under the operating environment described above, according to the first aspect of the present embodiment, there is provided a method for adjusting time slots of virtual channels based on a segmentation layer, which is implemented by the satellite remote control transmission system 200 shown in fig. 3. Fig. 7 shows a flow chart of the method according to the embodiment, and referring to fig. 7, the method includes:

s702: the packaging layer receives remote control application data from a plurality of information sources and generates remote control packets corresponding to the plurality of information sources respectively;

s704: the segmentation layer receives the remote control packet and generates remote control segments corresponding to the plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to the respective information sources respectively;

s706: the segmentation layer determines scheduling configuration information used for scheduling among a plurality of information sources, wherein the segmentation layer transmits remote control segments containing different receiving address pointers to the transmission layer according to the proportional relation indicated by the scheduling configuration information; and

s708: and the transmission layer creates virtual channels respectively corresponding to the plurality of information sources and adjusts the time slot lengths of the virtual channels according to the proportional relation indicated by the scheduling configuration information.

Fig. 8 shows correspondence between a plurality of sources and a plurality of applications according to the present embodiment. Where IS _0 represents source 0, IS _1represents source 1, and so on, and IS _ n represents source n. APP _0 represents application 0, APP _1represents application 1, and so on, APP _ n represents application n. Referring to fig. 8, IS _0 corresponds to APP _0, and remote control application data IS transmitted to APP _0 through virtual channel 0; IS _1 corresponds to APP _1, transmits remote control application data to APP _1 through a virtual channel 1, and so on, IS _ n corresponds to APP _ n, and transmits remote control application data to APP _ n through a virtual channel n. And wherein the virtual channels in fig. 8 can be dynamically configured according to different sources. For example, IS _1 may correspond to virtual channel 3, and IS _3 may correspond to virtual channel 0. As can be seen from the above, the plurality of sources in the present embodiment are in a one-to-one correspondence with the applications on the satellite 100.

Specifically, referring to fig. 1B, 4 and 5, an application data interface IS disposed in the satellite remote control transmission system 200, and the application data interface IS respectively in communication connection with the information sources IS _0 to IS _ n and receives remote control application data transmitted by the information sources IS _0 to IS _ n. Then, the application data interface transmits the received remote control application data transmitted by the information sources IS _0 to IS _ n to a packaging layer in the satellite remote control transmission system 200.

After receiving the remote control application data transmitted from the plurality of information sources, the wrapper layer in the satellite remote control transmission system 200 generates remote control packets corresponding to the plurality of information sources, respectively (S702). Table 1 below shows a schematic diagram of a data format of the remote control packet:

TABLE 1

The wrapping layer fills in the field "application process identification" in the leading header of the remote control package according to the multiple sources corresponding to the remote control application data. Table 2 below is a configuration table identified by the application number-application process. Referring to table 2, different applications correspond to specific application serial numbers, and different applications correspond to specific application process identifications. Where APP _0 represents application 0, APP _1represents application 1, and so on, APP _ n represents application n. APID _0 represents the application process identification of APP _0, APID _1 represents the application process identification of APP _1, and so on, APID _ n represents the application process identification of APP _ n. For example, the application sequence number of the SMU processor module is APP _0, and the application process identification corresponding to the SMU processor module is APID _0.

TABLE 2

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Then, the packing layer in the satellite remote control transmission system 200 transmits the remote control packet to the segmentation layer.

The segmentation layer in the satellite remote control transmission system 200 receives the remote control packet and generates remote control segments corresponding to the plurality of sources from the remote control packet (S704). Referring to fig. 5, a segmentation processing unit in the segmentation layer generates a remote control segment from a received remote control packet. In particular, the segmentation processing unit divides a long remote control packet into several shorter remote control segments. Wherein, the following table 3 shows the data format of the remote control segment:

TABLE 3

The segmentation processing unit may access the receive address pointer configuration table to configure the receive address pointer field of the remote control segment header according to the application process identification field in the remote control packet. Table 4 is a configuration table of source-application process identification-receiving address pointers. ADD _0 represents the receive address pointer corresponding to IS _0, ADD _1 represents the receive address pointer corresponding to IS _1, and so on, ADD _ n represents the receive address pointer corresponding to IS _ n. Referring to table 4, IS _0 corresponds to APP _0, APP _0 corresponds to APID _0, APID _0 corresponds to ADD _0, and so on, IS _ n corresponds to APP _ n, APP _ n corresponds to APID _ n, and APID _ n corresponds to ADD _ n.

TABLE 4

Then, the segmentation processing unit in the segmentation layer transmits the generated remote control segment to the corresponding remote control segment queue according to the received address pointer, as shown in fig. 6.

The remote control transmission unit in the segment layer determines scheduling configuration information for scheduling between the plurality of sources (S706). Referring to fig. 5, the remote control transmission unit accesses a preset priority configuration table, and then determines scheduling configuration information for scheduling among a plurality of information sources according to the priority configuration table. Each information source corresponds to different priority levels, and the priority levels of the information sources correspond to different priority level parameters.

Then, the remote control segment transmission unit in the segment layer determines a score corresponding to the priority parameter of each information source according to the priority parameter corresponding to the different information source, and determines a second weight value (corresponding to the second weight value recited in the claims) corresponding to each information source according to the score corresponding to the priority parameter of each information source. The proportional relation indicated by the second weight value is scheduling configuration information for scheduling among a plurality of information sources.

Furthermore, the remote control segment transmission unit in the segment layer transmits the remote control segments containing different receiving address pointers to the transmission layer according to the proportional relation indicated by the scheduling configuration information. Fig. 9 illustrates the proportional transmission of remote control segments to the transport layer by the segmentation layer according to the present embodiment. Referring to fig. 9, the number of remote control segments TS _0 to TS _ n corresponds to the proportional relationship indicated by the scheduling configuration information.

Then, the transport layer in the satellite remote control transmission system 200 creates a virtual channel, and accesses the scheduling configuration information, and adjusts the slot length of the virtual channel according to the proportional relationship indicated by the scheduling configuration information (S708). Fig. 10A shows the time slot length of a virtual channel before the transport layer adjusts the virtual channel according to the scheduling configuration information according to the present embodiment; fig. 10B shows the time slot length of the virtual channel after the transport layer adjusts the virtual channel according to the scheduling configuration information according to the present embodiment. Referring to fig. 10A, when the transport layer does not adjust the virtual channels according to the scheduling configuration information, the time slot lengths of the respective virtual channels VC are the same. Referring to fig. 10B, after the transport layer adjusts the virtual channels according to the scheduling configuration information, the time slot lengths of the virtual channels VC correspond to the proportional relationship of the scheduling configuration information.

Further, the transport layer generates a remote control transmission frame corresponding to the remote control segment based on the received remote control segment. And transmits the remote control transmission frame to the spacecraft 100 through the virtual channel. Fig. 11 is a diagram illustrating a remote control transmission frame transmitted by a virtual channel of different slot lengths by a transmission layer according to the present embodiment. Referring to fig. 11, the numbers of remote control transmission frames transmitted by VC _0, VC _1, VC _2, and VC _3 correspond to the proportional relationship indicated by the scheduling configuration information. Therefore, after the transport layer adjusts the time slot length of the virtual channel according to the proportional relationship indicated by the scheduling configuration information, the remote control transmission frame transmitted through the virtual channel also corresponds to the proportional relationship indicated by the scheduling configuration information.

As described in the background art, in practical applications, the transmission path required for transmitting remote control application data is much smaller than 64. That is, it is sufficient to transmit remote control application data using 64 virtual channels, and it is not necessary to divide the virtual channels using the reception address pointers. Although in the case of large remote control application data, it is still necessary to segment the remote control packet using the segmentation layer. However, since it is quite sufficient to use 64 virtual channels for transmitting remote control application data, the receiving address pointer of the remote control segment is not used, but a constant value is set at the segment head of the remote control segment. However, in the actual application process, the source-to-application transmission process still needs to be scheduled. In the prior art, for example, a scheduling mechanism based on priority can be set at the transmission layer, so as to schedule the remote control transmission frame. However, since the original transport layer does not have the scheduling mechanism based on the priority, the method of setting the scheduling mechanism based on the priority in the transport layer may increase the cost.

In view of this, in the technical solution of this embodiment, first, the segmentation layer receives a remote control packet and generates remote control segments corresponding to a plurality of information sources. And the remote control segments generated by the segmentation layer contain received address pointers that respectively correspond to the respective sources. Then, the segment layer determines scheduling configuration information for scheduling among the plurality of information sources based on the priority of the remote control segment corresponding to each information source, and transmits the remote control segment to the transmission layer according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer creates virtual channels corresponding to the plurality of information sources, and adjusts the time slot lengths of the virtual channels according to the proportional relation of the scheduling configuration information. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segment layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Optionally, the operation of generating a remote control segment comprises: reading an application process identification field of the remote control packet by a segmentation layer, and determining an information source corresponding to the remote control packet according to the application process identification field; the segmentation layer determines a receiving address pointer corresponding to the remote control packet according to the determined information source; and the segmentation layer generates a remote control segment according to the determined receiving address pointer.

Specifically, referring to fig. 4 and 5, the packaging layer generates a remote control packet according to remote control application data sent by the information sources IS _0 to IS _ n, and transmits the remote control packet to the segmentation layer.

And then, the segmentation layer reads the application process identification field of the remote control packet and determines the information source corresponding to the remote control packet according to the application process identification field. Specifically, as shown in table 4, the information sources IS _0 to IS _ n correspond to the applications APP _0 to APP _ n one to one, and each application has a specific application process identification, so the information sources IS _0 to IS _ n correspond to the application process identifications APID _0 to application process identifications APID _ n one to one, respectively. And the information sources IS _0 to IS _ n are respectively corresponding to the application process identification APID _0 to the application process identification APID _ n one by one, so that the segmentation layer can read the application process identification field of the remote control packet and determine the information source corresponding to the remote control packet according to the application process identification field.

Further, after the segmentation layer determines the information source corresponding to the remote control packet, the receiving address pointer corresponding to the remote control packet is determined according to the determined information source. Specifically, referring to table 2, IS _0 corresponds to APP _0, APP _0 corresponds to APID _0, APID _0 corresponds to ADD _0, and so on, IS _ n corresponds to APP _ n, APP _ n corresponds to APID _ n, and APID _ n corresponds to ADD _ n. Therefore, the segmentation processing unit in the segmentation layer can determine the receiving address pointer corresponding to the remote control packet according to the determined source.

And finally, the segmentation layer generates a remote control segment according to the determined receiving address pointer.

Therefore, the technical effect of generating the remote control segment corresponding to the receiving address pointer according to the determined receiving address pointer is achieved through the operation.

Optionally, the operation of determining scheduling configuration information for scheduling between multiple sources includes: the subsection layer accesses a preset priority configuration table and determines priority parameters corresponding to a plurality of information sources according to the priority configuration table; and determining scheduling configuration information according to the priority parameter.

Specifically, referring to fig. 4 and 5, the remote control segment transmission unit in the segment layer accesses a preset priority configuration table and then determines priority parameters corresponding to a plurality of sources according to the priority configuration table. In particular, table 5 shows the priority parameters of 4 sources to be transmitted. Referring to table 5, the information sources 1 to 4 to be transmitted are respectively determined as the information sources IS _1 to IS _4. Although table 5 exemplarily shows 4 sources to be transmitted, the specific number of sources may be determined according to actual situations. And will not be described in detail herein.

Referring to table 5, the source corresponding to the source 1 IS _1, and the priority IS 1; the information source corresponding to the information source 2 IS IS _2, and the priority IS 2; the information source corresponding to the information source 3 IS IS _3, and the priority IS 3; and the source 4 corresponds to the source IS _4 and the priority IS 4. Thus, the priority of the source 1 is greater than that of the source 2, the priority of the source 2 is greater than that of the source 3, and the priority of the source 3 is greater than that of the source 4. And wherein the priority parameter of the source 1 is 20, the priority parameter of the source 2 is 9, the priority parameter of the source 3 is 5 and the priority parameter of the source 4 is 3.

TABLE 5

The priority parameters of different information sources are different, and the scheduling configuration information corresponding to the priority parameters of different information sources is also different. Therefore, the remote control segment transmission unit in the segment layer can determine the scheduling configuration information by determining the priority parameters corresponding to the plurality of information sources. In the above, the source IS _1 IS exemplarily used as the source 1, the source IS _2 IS used as the source 2, the source IS _3 IS used as the source 3, and the source IS _4 IS used as the source 4. However, the technical solution of the present disclosure IS not limited thereto, and those skilled in the art may determine the sources 1 to 4 according to practical situations, for example, the source 1 may be the source IS _2, the source 2 may be the source IS _5, and the like. And the priority parameters of the source 1 to the source 4 are different with different specific sources. For example, when the source of source 1 IS IS _2, its priority IS 2, and the priority parameterD ₂ Is 9.

Therefore, the technical effect that the scheduling configuration information corresponding to different information sources can be determined according to the priorities of the different information sources, and then the remote control application data sent by the different information sources are scheduled in the transmission process is achieved through the operation.

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: and taking the ratio of the scores corresponding to the priority parameters of the information sources as scheduling configuration information.

Specifically, taking Table 5 as an example, the segment layer is based on the priority parameters of each of the sources 1-4D ₁ ~D ₄ Determining priority parameters of each information source 1-4D ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ . Specifically, it can be determined, for example, according to the following formula:

(formula 1)

Wherein, the first and the second end of the pipe are connected with each other,i=1~4。

for example, the priority parameter of the source 1D ₁ Corresponding score valueN ₁ Is 20, priority parameter of Source 2D ₂ Corresponding score valueN ₂ Is 9 priority parameter of source 3D ₃ Corresponding score valueN ₃ Is 5, and the priority parameter of the source 4D ₄ Corresponding score valueN ₄ Is 3. Thus, the score of Source 1N ₁ Source 2 scoreN ₂ Source 3 scoreN ₃ And score of Source 4N ₄ The ratio between 20. Therefore, the proportional relation indicated by the scheduling configuration information is the proportion between the scores corresponding to the priority parameters of the respective information sources. Therefore, the transmission proportion of the remote control application data of different information sources can be determined according to the proportion relation.

Therefore, the technical effect of determining the scheduling configuration information by determining the priority parameter of each information source and then scheduling the remote control application data sent by different information sources in the transmission process is achieved through the operation.

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: the segment layer determines a first weight value corresponding to each information source according to the score corresponding to the priority parameter of each information source; the segmentation layer determines the length of remote control application data corresponding to each information source; the segmentation layer determines weighted data quantity corresponding to each information source according to the first weight value and the length of the remote control application data; the segmentation layer determines a second weighted value corresponding to each information source according to the weighted data quantity; and the segmentation layer determines scheduling configuration information according to the second weight value.

Specifically, referring to fig. 4 and 5, the segment layer may also determine scheduling configuration information according to second weight values corresponding to the respective information sources. And the second weight value is related to the score corresponding to the priority parameter of each information source.

First, taking Table 5 as an example, the segment layer is based on the priority parameters of each of the sources 1-4D ₁ ~D ₄ Determining priority parameters of each information source 1-4D ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ . The priority parameter of the source 1 can be determined, for example, according to equation (1)D ₁ Corresponding score valueN ₁ Is 20, priority parameter of Source 2D ₂ Corresponding score valueN ₂ Is 9 priority parameter of source 3D ₃ Corresponding score valueN ₃ Is 5, and the priority parameter of the source 4D ₄ Corresponding score valueN ₄ Is 3.

Then, the segmentation layer can be used for carrying out segmentation according to the priority parameters of the information sources 1 to 4D ₁ ~D ₄ Corresponding score valueN ₁ ~N ₄ Determining first weight values corresponding to the information sources 1-4

. The specific calculation formula is as follows:

(formula 2)

Wherein the content of the first and second substances,i=1~4。

and then, the segmentation layer determines the length of the remote control application data corresponding to each of the information sources 1-4. For example,

representing remote corresponding to the source 1Controlling the length of the application data>

Indicates the length, or value, of the remote control application data corresponding to the source 2>

Indicates the length, or value, of the remote control application data corresponding to the source 3>

Indicating the length of the remote control application data corresponding to the source 4.

Further, the segmentation layer is according to the first weight value

And length of remote control application data>

Determining the weighted data quantity corresponding to each information source 1-4wx ₁ ~wx ₄ . The specific calculation formula is as follows:

(formula 3)

Wherein the content of the first and second substances,i=1~4。

then, the subsection layer weights the data quantity according to each information source 1-4wx ₁ ~wx ₄ Determining second weighted values corresponding to the information sources 1-4s ₁ ~s ₄ . Wherein the content of the first and second substances,s ₁ ~s ₄ is composed ofwx ₁ ~wx ₄ And normalizing the calculated values.

Namely, it is

And &>

The sum is 1.

Then, the segment layer is based on the second weight values ₁ ~s ₄ Determining the time slot length of the virtual channel corresponding to each information source 1-4T ₁ ~T ₄ 。

Optionally, the operation of determining the scheduling configuration information according to the priority parameter includes: the segmentation layer determines the length of remote control application data corresponding to each information source; the segment layer determines priority scores corresponding to the information sources respectively from a plurality of preset priority scores according to the priority parameters of the information sources and the length of the remote control application data; and using the proportion among the priority scores as scheduling configuration information.

Specifically, according to the technical scheme of the present disclosure, a plurality of priority scores may be set in advanceS ₁ ~S _m . For example, in the present embodiment, it is preferable tom=4, andS ₁ =4，S ₂ =3，S ₃ =2 andS ₄ and =1. Of course, m may take other values, and the priority valueS _j （j=1~m) Other integral values may also be taken. The setting can be made according to specific situations.

According to the technical scheme, aiming at the information source of the remote control application data to be transmittedi（i=1 to 4), according to the priority parameter of the information sourceD _i And remotely controlling the length of application datax _i Can determine the sourceiThe corresponding feature vector:

/>

substituting the characteristic vector into the following formula to determine the information sourceiWith respective priority scoresS _j Probability value between:

(formula 4)

(formula 5)

Wherein the content of the first and second substances,j=1~m。

for example, for Source 1, it can be determined with respective priority scoresS _j Probability of (2) in betweenP _1j （j=1~m) For source 2, it can be determined with respective priority scoresS _j Probability of (2) in betweenP _2j （j=1~m) By analogy, for the source 4, it can be determined with the respective priority scoresS _j Probability of (2) in betweenP _4j （j=1~m）。

Then, for the source 1, from the probability valuesP _1j （j=1~m) The priority score corresponding to the maximum probability value is selected as the priority score corresponding to the information source 1N ₁ . For example, when the probability valueP ₁₂ At maximum, the corresponding priority score is selectedS ₂ As a priority score corresponding to Source 1N ₁ 。

For the source 2, from probability valuesP _2j （j=1~m) In the method, the priority score corresponding to the maximum probability value is selected as the priority score corresponding to the information source 1N ₂ . For example, when the probability valueP ₂₁ At maximum, the corresponding priority score is selectedS ₁ As priority scores corresponding to source 2N ₂ 。

By analogy, for the source 4, from the probability valuesP _4j （j=1~m) In the method, the priority score corresponding to the maximum probability value is selected as the priority score corresponding to the information source 4N ₄ . For example, when the probability valueP ₄₃ When maximum, select the corresponding priority scoreS ₃ As priority scores corresponding to the source 4N ₄ 。

Therefore, through the method, the priority scores corresponding to the information sources 1-4 can be determinedN ₁ ~N ₄ 。

The priority value may then be comparedN ₁ ~N ₄ The ratio between them is used as scheduling configuration information.

With respect to the parameters shown in equation (5)

Training can be performed using a gradient descent method. Below in parameter>

The description is given for the sake of example:

first, a sample set is constructed, wherein the specific information of the sample set is shown in table 6 below:

TABLE 6

Collecting each sample in the sample setSa _i Priority parameter ofDS _i And data lengthxs _i The samples were calculated by substituting the samples into the following equations (6) and (7) in orderSa _i Relative to priority scoreS ₁ Predicted probability value ofP _i 。

(formula 6)

(formula 7)

Mixing the sampleSa _i Corresponding priority scoreNS _i And priority valueS ₁ Making a comparison whenNS _i Corresponding to priority valueS ₁ Then sample the bookSa _i Relative to priority scoreS ₁ Is 1, otherwise a sample is takenSa _i Relative to priority scoreS ₁ The actual probability of (2) is 0.

According to the sampleSa _i Relative to priority scoreS ₁ The actual probability and the predicted probability value of the target object are calculated by the inverse gradient, and the parameters are calculated

Training is performed until the inverse gradient function converges.

For other parameters

The training can be performed by referring to the above method, and details are not repeated herein.

Optionally, the segmentation layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and transmits a remote control segment containing different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information, including: the segmentation layer inputs the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment; and the segmentation layer respectively acquires the remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information, and sequentially transmits the acquired remote control segments to the transmission layer.

Specifically, as shown in fig. 5, the segment layer is further provided with a plurality of remote control segment queues, and the plurality of remote control segment queues correspond to different reception address pointers, respectively. Therefore, the segmentation processing unit in the segmentation layer transmits the remote control segments containing different receiving address pointers to the corresponding remote control segment queues according to the receiving address pointers of the remote control segments. Further, referring to fig. 6, for example, the remote control segment queue 0 corresponds to the reception address pointer ADD _0, the remote control segment queue 1 corresponds to the reception address pointer ADD _1, and so on, the remote control segment queue n corresponds to the reception address pointer ADD _ n. Thus, TS _0 is transmitted to remote segment queue 0, TS _1is transmitted to remote segment queue 1, TS _2is transmitted to remote segment queue 2, and so on, TS _ n is transmitted to remote segment queue n. That is, the remote control segment queue 0 includes remote control segments TS _0 having a reception address pointer of 0, the remote control segment queue 1 includes remote control segments TS _1 having a reception address pointer of 1, the remote control segment queue 2 includes remote control segments TS _2 having a reception address pointer of 2, and so on, and the remote control segment queue n includes remote control segments TS _ n having a reception address pointer of n.

Then, the remote control segment transmission unit in the segment layer respectively acquires the remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information. For example, the segment layer includes a remote control segment queue 0, a remote control segment queue 1, a remote control segment queue 2, and a remote control segment queue 3. And wherein, the proportional relationship indicated by the scheduling configuration information is 9. Then, the remote control segment transmission unit in the segmentation layer acquires the remote control segments from the remote control segment queue 0, the remote control segment queue 1, the remote control segment queue 2 and the remote control segment queue 3 according to the proportional relation of 9.

And finally, the remote control segment transmission unit in the segmentation layer sequentially transmits the acquired remote control segments to the transmission layer.

Therefore, the technical effect of scheduling the remote control segment transmitted to the transmission layer according to the proportional relation indicated by the scheduling configuration information is achieved through the operation.

Optionally, the method further comprises: the transmission layer receives the remote control segment from the segmentation layer and generates corresponding remote control transmission frames according to the sequence; and the transport layer sequentially allocates the remote transport frames to the corresponding virtual channels.

Specifically, referring to fig. 4 and 5, after the remote control segment transmission unit in the segmentation layer transmits the remote control segment to the transport layer according to the proportional relationship indicated by the scheduling configuration information, the transport layer receives the remote control segment and generates corresponding remote control transmission frames in sequence.

Then, the transport layer sequentially allocates the remote transport frames to the corresponding virtual channels.

Therefore, the technical effects that the corresponding remote control transmission frames can be generated in sequence and the remote control transmission frames are distributed to the corresponding virtual channels in sequence are achieved through the operation.

In the technical solution of this embodiment, first, the segmentation layer receives a remote control packet and generates remote control segments corresponding to a plurality of information sources. And the remote control segments generated by the segmentation layer contain received address pointers that respectively correspond to the respective sources. Then, the segment layer determines scheduling configuration information for scheduling among the plurality of information sources based on the priority of the remote control segment corresponding to each information source, and transmits the remote control segment to the transmission layer according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer creates virtual channels corresponding to the plurality of information sources, and adjusts the time slot length of the virtual channels according to the proportional relation of the scheduling configuration information. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segment layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Fig. 12 is a flowchart of a method for transmitting remote control application data of multiple sources according to the present embodiment. Referring to fig. 12, the method includes:

s1202: the remote control application data are transmitted to the packaging layer through the application data interface by the plurality of information sources;

s1204: the packaging layer receives remote control application data from a plurality of information sources, generates remote control packets respectively corresponding to the plurality of information sources, and transmits the remote control packets to the segmentation layer;

s1206: the segmentation layer receives the remote control packet, reads an application process identification field of the remote control packet, and determines an information source corresponding to the remote control packet according to the application process identification field;

s1208: the segmentation layer determines a receiving address pointer corresponding to the remote control packet according to the determined information sources and generates a remote control segment according to the receiving address pointer, wherein the plurality of information sources correspond to applications on the satellite one by one;

s1210: the subsection layer accesses a preset priority configuration table and determines priority parameters corresponding to a plurality of information sources according to the priority configuration table;

s1212: the segment layer determines the value corresponding to the priority parameter of each information source according to the priority parameter of each information source;

s1214: and the segmentation layer determines a first weight value according to the score corresponding to the priority parameter of each information source. And reading the length of the remote control application data corresponding to each information source by the segmentation layer, and determining the weighted data quantity of each information source according to the first weight value and the length of the remote control application data. The segmentation layer determines a second weight value corresponding to each information source according to the weighted data quantity, and determines scheduling configuration information according to the second weight value;

s1216: the segmentation layer inputs the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment;

s1218: the segmentation layer respectively acquires remote control segments from remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information, and sequentially transmits the acquired remote control segments to the transmission layer;

s1220: the transmission layer creates virtual channels corresponding to the plurality of information sources and adjusts the time slot lengths of the virtual channels according to the proportional relation indicated by the scheduling configuration information;

s1222: the transport layer receives the remote control segments from the segmentation layer, generates corresponding remote control transport frames in sequence, and allocates the remote control transport frames to corresponding virtual channels in sequence.

Further, referring to fig. 2, according to a second aspect of the present embodiment, there is provided a storage medium. The storage medium includes a stored program, wherein the method of any of the above is performed by a processor when the program is run.

According to the technical scheme of the embodiment, firstly, the segmentation layer receives the remote control packet and generates remote control segments corresponding to a plurality of information sources. And the remote control segments generated by the segmentation layer contain received address pointers that respectively correspond to the respective sources. Then, the segment layer determines scheduling configuration information for scheduling among the plurality of information sources based on the priority of the remote control segment corresponding to each information source, and transmits the remote control segment to the transmission layer according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer creates virtual channels corresponding to the plurality of information sources, and adjusts the time slot lengths of the virtual channels according to the proportional relation of the scheduling configuration information. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segment layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

Example 2

Fig. 13 is a schematic diagram of an apparatus for adjusting time slots of a virtual channel based on a segmentation layer according to the first aspect of embodiment 2 of the present application. Referring to fig. 13, the apparatus 1300 is used in the satellite remote control transmission system 200, wherein the satellite remote control transmission system 200 is provided with a packaging layer, a segmentation layer and a transmission layer, and comprises: a remote control packet generation module 1310 configured to receive remote control application data from a plurality of information sources and generate remote control packets corresponding to the plurality of information sources respectively; a remote control segment generation module 1320, configured to receive a remote control packet, and generate a remote control segment corresponding to multiple information sources according to the remote control packet, where the remote control segment includes receiving address pointers corresponding to respective information sources; a scheduling configuration information determining module 1330 configured to determine scheduling configuration information for scheduling among a plurality of information sources, wherein the segment layer transmits remote control segments including different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information; and a time slot length adjusting module 1340, configured to create virtual channels corresponding to the multiple information sources, respectively, and adjust the time slot lengths of the virtual channels according to the proportional relationship indicated by the scheduling configuration information.

Optionally, the remote control segment generating module 1320 includes: the information source determining module is used for reading the application process identification field of the remote control packet and determining the information source corresponding to the remote control packet according to the application process identification field; a receiving address pointer determining module for determining a receiving address pointer corresponding to the remote control packet according to the determined information source; and the remote control segment generation submodule is used for generating a remote control segment according to the determined receiving address pointer.

Optionally, the scheduling configuration information determining module 1330 includes: the priority parameter determining module is used for accessing a preset priority configuration table and determining priority parameters corresponding to the plurality of information sources according to the priority configuration table; and the first scheduling configuration information determining submodule is used for determining the scheduling configuration information according to the priority parameter.

Optionally, the scheduling configuration information determining module 1330 includes: and the score determining module is used for taking the proportion of the scores corresponding to the priority parameters of the information sources as scheduling configuration information.

Optionally, the scheduling configuration information determining module 1330 includes: the first weight value determining module is used for determining a first weight value corresponding to each information source according to the score corresponding to the priority parameter of each information source; the remote control application data reading module is used for reading the length of the remote control application data corresponding to each information source; the weighted data volume determining module is used for determining weighted data volumes corresponding to the information sources according to the first weight values and the length of the remote control application data; the second weight value determining module is used for determining a second weight value corresponding to each information source according to the weighted data volume; and the second scheduling configuration information determining submodule is used for determining the scheduling configuration information according to the second weight value.

Optionally, the segmentation layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and transmits a remote control segment containing different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information, including: the remote control segment input module is used for inputting the remote control segment to a corresponding remote control segment queue according to the receiving address pointer contained in the remote control segment; and the remote control segment acquisition module is used for respectively acquiring the remote control segments from the remote control segment queues corresponding to the different receiving address pointers according to the proportional relation indicated by the scheduling configuration information and sequentially transmitting the acquired remote control segments to the transmission layer.

Optionally, the apparatus 1300 further comprises: a remote control transmission frame generation module for receiving remote control segments from the segmentation layer and generating corresponding remote control transmission frames in sequence; and a remote control transmission frame distribution module for distributing the remote control transmission frames to the corresponding virtual channels in sequence.

According to the technical scheme of the embodiment, firstly, the segmentation layer receives the remote control packet and generates remote control segments corresponding to a plurality of information sources. And the remote control segments generated by the segmentation layer contain received address pointers that respectively correspond to the respective sources. Then, the segment layer determines scheduling configuration information for scheduling among the plurality of information sources based on the priority of the remote control segment corresponding to each information source, and transmits the remote control segment to the transmission layer according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer creates virtual channels corresponding to the plurality of information sources, and adjusts the time slot lengths of the virtual channels according to the proportional relation of the scheduling configuration information. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segmentation layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

Example 3

Fig. 14 is a schematic diagram of an apparatus for adjusting time slots of a virtual channel based on a segmentation layer according to the first aspect of embodiment 3 of the present application. Referring to fig. 14, the apparatus 1400 is used in the satellite remote control transmission system 200, wherein the satellite remote control transmission system 200 is provided with a packing layer, a segmentation layer and a transmission layer, and comprises: a processor 1410; and a memory 1420 coupled to the processor 1410 for providing instructions to the processor 1410 to process the following process steps: receiving remote control application data from a plurality of information sources and generating remote control packets respectively corresponding to the plurality of information sources; receiving a remote control packet, and generating remote control segments corresponding to a plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to respective information sources; determining scheduling configuration information for scheduling among a plurality of information sources, wherein the segmentation layer transmits remote control segments containing different receiving address pointers to the transmission layer according to a proportional relation indicated by the scheduling configuration information; and creating virtual channels corresponding to the plurality of information sources respectively, and adjusting the time slot lengths of the virtual channels according to the proportional relation indicated by the scheduling configuration information.

According to the technical scheme of the embodiment, firstly, the segmentation layer receives the remote control packet and generates remote control segments corresponding to a plurality of information sources. And the remote control segments generated by the segmentation layer contain received address pointers that respectively correspond to the respective sources. Then, the segment layer determines scheduling configuration information for scheduling among the plurality of information sources based on the priority of the remote control segment corresponding to each information source, and transmits the remote control segment to the transmission layer according to the proportional relationship indicated by the scheduling configuration information. And finally, the transmission layer creates virtual channels corresponding to the plurality of information sources, and adjusts the time slot length of the virtual channels according to the proportional relation of the scheduling configuration information. Because the transport layer can adjust the time slot length of the virtual channel according to the proportional relation indicated by the scheduling configuration information, and the scheduling configuration information is determined based on the priority mechanism in the segment layer, the transport layer can schedule the remote control transmission frame without introducing an additional scheduling configuration mechanism based on the priority. Therefore, the technical effect that the priority mechanism in the segmentation layer can be fully utilized to generate the scheduling mechanism based on the priority without additionally introducing the scheduling mechanism based on the priority into the transmission layer is achieved through the operation, and the cost is further reduced. The method further solves the technical problem that in the prior art, the priority mechanism in the segmentation layer cannot be fully utilized to generate the scheduling mechanism based on the priority, and the scheduling mechanism based on the priority needs to be additionally introduced into the transmission layer, so that the cost is increased.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present invention, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described in detail in a certain embodiment.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be an indirect coupling or communication connection through some interfaces, units or modules, and may be electrical or in other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A method for adjusting time slot of virtual channel based on segment layer is used for satellite remote control transmission system, wherein the satellite remote control transmission system is provided with a packaging layer, a segment layer and a transmission layer, and is characterized by comprising:

the packaging layer receives remote control application data from a plurality of information sources and generates remote control packets respectively corresponding to the plurality of information sources;

the segmentation layer receives the remote control packet and generates remote control segments corresponding to the plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to the respective information sources respectively;

the segmentation layer determines scheduling configuration information used for scheduling among the plurality of information sources, wherein the segmentation layer transmits the remote control segments containing different receiving address pointers to the transmission layer according to the proportional relation indicated by the scheduling configuration information;

the transmission layer creates virtual channels respectively corresponding to the plurality of information sources and adjusts the time slot length of the virtual channels according to the proportional relation indicated by the scheduling configuration information, wherein

An operation for determining scheduling configuration information for scheduling among the plurality of sources, comprising:

the subsection layer accesses a preset priority configuration table and determines priority parameters corresponding to the plurality of information sources according to the priority configuration table; and

and the section layer determines the scheduling configuration information according to the priority parameter.

2. The method of claim 1, wherein generating the operation of the remote control segment comprises:

the segmentation layer reads an application process identification field of the remote control packet and determines an information source corresponding to the remote control packet according to the application process identification field;

the segmentation layer determines a receiving address pointer corresponding to the remote control packet according to the determined information source; and

and the segmentation layer generates the remote control segment according to the determined receiving address pointer.

3. The method of claim 2, wherein determining the scheduling configuration information according to the priority parameter comprises: and taking the ratio of the scores corresponding to the priority parameters of the information sources as the scheduling configuration information.

4. The method of claim 3, wherein determining the scheduling configuration information according to the priority parameter comprises:

the segmentation layer determines a first weight value corresponding to each information source according to a score value corresponding to a priority parameter of each information source;

the segmentation layer determines the length of the remote control application data corresponding to each information source;

the segmentation layer determines weighted data quantity corresponding to each information source according to the first weighted value and the length of the remote control application data;

the segmentation layer determines a second weight value corresponding to each information source according to the weighted data quantity; and

and the segmentation layer determines the scheduling configuration information according to the second weight value.

5. The method according to claim 3 or 4, wherein the segment layer is further provided with remote control segment queues respectively corresponding to different receiving address pointers, and the operation of transmitting the remote control segment containing different receiving address pointers to the transmission layer according to the proportional relationship indicated by the scheduling configuration information comprises:

the segmentation layer inputs the remote control segment to a corresponding remote control segment queue according to a receiving address pointer contained in the remote control segment; and

and the segmentation layer respectively acquires the remote control segments from the remote control segment queues corresponding to different receiving address pointers according to the proportional relation indicated by the scheduling configuration information, and sequentially transmits the acquired remote control segments to the transmission layer.

6. The method of claim 5, further comprising:

the transmission layer receives the remote control segment from the segmentation layer and generates corresponding remote control transmission frames according to the sequence; and

the transport layer sequentially allocates the remote transport frames to corresponding virtual channels.

7. A storage medium, characterized in that the storage medium comprises a stored program, wherein

The method of any one of claims 1 to 6 being performed by a processor when the program is run.

8. An apparatus for adjusting a time slot of a virtual channel based on a segment layer, which is used in a satellite remote control transmission system, wherein a packing layer, a segment layer, and a transport layer are disposed in the satellite remote control transmission system, the apparatus comprising:

the remote control package generation module is used for receiving remote control application data from a plurality of information sources and generating remote control packages respectively corresponding to the information sources;

a remote control segment generation module, configured to receive the remote control packet, and generate a remote control segment corresponding to the multiple information sources according to the remote control packet, where the remote control segment includes receiving address pointers corresponding to respective information sources;

a scheduling configuration information determining module, configured to determine scheduling configuration information used for scheduling among the multiple information sources, where the segment layer transmits remote control segments including different receiving address pointers to the transport layer according to a proportional relationship indicated by the scheduling configuration information;

a time slot length adjusting module, configured to create virtual channels corresponding to the multiple information sources, respectively, and adjust the time slot lengths of the virtual channels according to the proportional relationship indicated by the scheduling configuration information, where the time slot lengths are adjusted by the scheduling configuration information

The scheduling configuration information determining module comprises: the priority parameter determining module is used for accessing a preset priority configuration table and determining priority parameters corresponding to the plurality of information sources according to the priority configuration table; and

and the first scheduling configuration information determining submodule is used for determining the scheduling configuration information according to the priority parameter.

9. An apparatus for adjusting a time slot of a virtual channel based on a segment layer, which is used in a satellite remote control transmission system, wherein a packing layer, a segment layer, and a transport layer are disposed in the satellite remote control transmission system, the apparatus comprising:

a processor; and

a memory coupled to the processor for providing instructions to the processor for processing the following processing steps:

receiving remote control application data from a plurality of information sources and generating remote control packets respectively corresponding to the plurality of information sources;

receiving the remote control packet, and generating remote control segments corresponding to the plurality of information sources according to the remote control packet, wherein the remote control segments comprise receiving address pointers corresponding to the respective information sources respectively;

determining scheduling configuration information for scheduling among the plurality of information sources, wherein the segmentation layer transmits remote control segments containing different receiving address pointers to the transmission layer according to a proportional relation indicated by the scheduling configuration information;

creating virtual channels respectively corresponding to the plurality of information sources, and adjusting the time slot lengths of the virtual channels according to the proportional relation indicated by the scheduling configuration information, wherein

An operation of determining scheduling configuration information for scheduling between the plurality of sources, comprising: