CN116962317A - Image transmission method, device and system - Google Patents
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- CN116962317A CN116962317A CN202310962697.XA CN202310962697A CN116962317A CN 116962317 A CN116962317 A CN 116962317A CN 202310962697 A CN202310962697 A CN 202310962697A CN 116962317 A CN116962317 A CN 116962317A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000013507 mapping Methods 0.000 claims description 67
- 230000011664 signaling Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
- H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/20—Hop count for routing purposes, e.g. TTL
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses an image transmission method, device and system, comprising the following steps: generating image data by an upper computer; after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource; after the upper computer sends a first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period; after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or the second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, and the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource.
Description
The application relates to a division application of application number 202310074427.5, application date 2023, 02 and 07, and the application name is a distributed image transmission method and system.
Technical Field
The present application relates to the field of image transmission technologies, and in particular, to an image transmission method, apparatus and system.
Background
In the distributed image transmission system, there may be one upper computer, a plurality of lower computers, and a plurality of mobile terminals that ultimately receive and use images, where the upper computer may be a server, for example, and the lower computers may be computers or other transceiver devices that act as relays, for example. In the distributed image transmission system, a plurality of lower computers are required to relay the image data, mainly because the distance between the upper computer and the mobile terminal is long, and the upper computer cannot transmit the image data to the mobile terminal at a time with a proper transmitting power.
In the current distributed image transmission system, the allocation and selection of transmission resources are inefficient, which results in that the transmission rate of image data is still restricted even in the case where the bandwidth is sufficiently large.
Disclosure of Invention
To achieve the above object, the present application provides an image transmission method comprising: generating image data by an upper computer; after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource; after the upper computer sends a first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period; after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or the second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, and the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource.
In a preferred embodiment, the first lower computer sends a second transmission resource indication message to the mobile terminal, wherein the second transmission resource indication message includes an indication of a second transmission resource, and the second transmission resource indication message does not include a hop count indicator, wherein the second transmission resource is located within a second time period; wherein the method further comprises:
after the first lower computer transmits the second transmission resource indication message to the mobile terminal, the first lower computer transmits the generated image data to the mobile terminal on the second transmission resource.
In a preferred embodiment, the first lower computer sends a second transmission resource indication message to the second lower computer, wherein the second transmission resource indication message includes a second hop count indicator and an indication of the second transmission resource; wherein the method further comprises:
after the first lower computer sends the second transmission resource indication message to the second lower computer, the first lower computer sends the generated image data to the second lower computer on the second transmission resource; after the second lower computer receives the generated image data, the second lower computer sends a third transmission resource indication message to the mobile terminal or a third lower computer, wherein the third transmission resource indication message at least comprises an indication of a third transmission resource, the third transmission resource is determined by the second lower computer based on the second hop count indicator and the second transmission resource, and the third transmission resource is located in a third time period.
In a preferred embodiment, determining, by the first lower computer, the second transmission resource based on the first hop count indicator and the first transmission resource comprises the steps of: determining, by the first lower computer, a first mapping table based on the first hop indicator, wherein the first mapping table records an association relationship between transmission resources in the first time period and transmission resources in the second time period, and the first mapping table includes an association relationship between the first transmission resources and the second transmission resources; the second transmission resource is determined by the first lower computer based on the first mapping table and the first transmission resource.
In a preferred embodiment, determining, by the second lower computer, the third transmission resource based on the second hop count indicator and the second transmission resource comprises the steps of: determining, by the second lower computer, a second mapping table based on the second hop indicator, wherein the second mapping table records association between transmission resources in the second time period and transmission resources in the third time period, and the second mapping table includes association relationships between the second transmission resources and the third transmission resources; the third transmission resource is determined by the second lower computer based on the second mapping table and the second transmission resource.
In a preferred embodiment, the method further comprises: generating new image data by the upper computer; after the upper computer generates new image data, the upper computer sends a fourth transmission resource indication message to the second lower computer, wherein the fourth transmission resource indication message comprises a third hop count indicator and an indication for a fourth transmission resource, the first hop count indicator and the third hop count indicator indicate the same hop count, and the fourth transmission resource is located in the first time period; after the upper computer sends a fourth transmission resource indication message to the second lower computer, the upper computer sends the generated new image data to the second lower computer on the fourth transmission resource; after the second lower computer receives the generated image data, the second lower computer sends a fifth transmission resource indication message to the mobile terminal or the third lower computer, wherein the fifth transmission resource indication message at least comprises an indication of a fifth transmission resource, the fifth transmission resource is determined by the second lower computer based on the third hop count indicator and the fourth transmission resource, and the fifth transmission resource is located in the second time period.
In a preferred embodiment, determining, by the second lower computer, the fifth transmission resource based on the third hop count indicator and the fourth transmission resource comprises the steps of: determining, by the second lower computer, a third mapping table based on the third hop indicator, where the third mapping table records an association of transmission resources in the first time period and transmission resources in the second time period, and the third mapping table includes an association relationship of fourth transmission resources and fifth transmission resources; the fifth transmission resource is determined by the second lower computer based on the third mapping table and the fourth transmission resource.
The application also provides a distributed image transmission system comprising means for: generating image data by an upper computer; after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource; after the upper computer sends a first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period; after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or the second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, and the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource.
In a preferred embodiment, the first lower computer sends a second transmission resource indication message to the mobile terminal, wherein the second transmission resource indication message includes an indication of a second transmission resource, and the second transmission resource indication message does not include a hop count indicator, wherein the second transmission resource is located within a second time period; wherein the system further comprises means for: after the first lower computer transmits the second transmission resource indication message to the mobile terminal, the first lower computer transmits the generated image data to the mobile terminal on the second transmission resource.
In a preferred embodiment, the first lower computer sends a second transmission resource indication message to the second lower computer, wherein the second transmission resource indication message includes a second hop count indicator and an indication of the second transmission resource; wherein the system further comprises means for: after the first lower computer sends the second transmission resource indication message to the second lower computer, the first lower computer sends the generated image data to the second lower computer on the second transmission resource; after the second lower computer receives the generated image data, the second lower computer sends a third transmission resource indication message to the mobile terminal or a third lower computer, wherein the third transmission resource indication message at least comprises an indication of a third transmission resource, the third transmission resource is determined by the second lower computer based on the second hop count indicator and the second transmission resource, and the third transmission resource is located in a third time period.
Compared with the prior art, the application has the following advantages:
in the prior art, there may be two schemes for resource scheduling of the above system, and for convenience of explanation, assuming that a transmission path of the distributed image transmission system is an upper computer-a first lower computer-a mobile terminal, a scheduling manner of the existing first resource scheduling scheme is: the upper computer allocates transmission resources first, then uses the resources to send image data to the first lower computer, then the first lower computer requests new transmission resources to the upper computer after receiving the image data, the upper computer indicates the new transmission resources to the first lower computer after receiving the request, and then the first lower computer transmits the image data to the mobile terminal on the new transmission resources. In this resource scheduling scheme, a lower computer needs to request a new transmission resource from an upper computer, and the upper computer needs to allocate the new transmission resource to the lower computer. As the number of hops increases, the signaling overhead will increase exponentially. Another existing scheduling approach is: the upper computer allocates transmission resources first, then uses the resources to send image data to the first lower computer, and simultaneously the upper computer allocates shared transmission resources to all the lower computers, the first lower computer contends for the shared transmission resources in a contention mode (such as an LBT or CCA mode) in the shared transmission resources after receiving the image data, and then the first lower computer can send the image data to the mobile terminal after the contention is successful. Although the scheduling method reduces the signaling overhead, a certain amount of signaling overhead is still required to be spent when the shared transmission resource is contended, and in addition, for the lower computer with larger hop count, the lower computer cannot contend in the whole shared transmission resource, which reduces the probability of successful contention of the lower computer with larger hop count, thereby reducing the data transmission rate. The present application aims to solve the problems of the prior art by means of some means and ways that are not overly complex.
Drawings
FIG. 1 is a schematic system architecture diagram of one embodiment of the present application.
FIG. 2 is a method flow diagram of one embodiment of the present application.
Fig. 3 is a timing block diagram of one embodiment of the present application.
Detailed Description
The following detailed description of embodiments of the application is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the application is not limited to the specific embodiments.
FIG. 1 is a schematic system architecture diagram of one embodiment of the present application. As shown, in one embodiment, the system of the present application may have a routing relationship in which an upper computer may transmit image data to a first lower computer, which may then transmit the image data to a second lower computer, which may then transmit the image data to a mobile terminal. In such a transmission process, the hop count of the upper computer is 0, the hop count of the first lower computer is 1, the hop count of the second lower computer is 2, and the hop count of the mobile terminal is 3. It will be appreciated by those skilled in the art that a third lower computer, a fourth lower computer, etc. may be sequentially included between the second lower computer and the mobile terminal (the third lower computer, the fourth lower computer are not shown). Meanwhile, due to the position change of the mobile terminal, the upper computer can also change the routing relationship in real time, for example, as shown in fig. 1, the upper computer can also send the image data to the second lower computer, and then the second lower computer can send the image data to the mobile terminal. In such a transmission process, the hop count of the upper computer is 0, the hop count of the second lower computer is 1, and the hop count of the mobile terminal is 2. In the distributed image transmission system, the upper computer has the capability of scheduling resources, and the lower computer and the mobile terminal only can request the upper computer to perform resource scheduling, but the lower computer and the mobile terminal cannot autonomously perform resource scheduling.
In the prior art, there may be two schemes for resource scheduling of the above system, and for convenience of explanation, assuming that a transmission path of the distributed image transmission system is an upper computer-a first lower computer-a mobile terminal, a scheduling manner of the existing first resource scheduling scheme is: the upper computer allocates transmission resources first, then uses the resources to send image data to the first lower computer, then the first lower computer requests new transmission resources to the upper computer after receiving the image data, the upper computer indicates the new transmission resources to the first lower computer after receiving the request, and then the first lower computer transmits the image data to the mobile terminal on the new transmission resources. In this resource scheduling scheme, a lower computer needs to request a new transmission resource from an upper computer, and the upper computer needs to allocate the new transmission resource to the lower computer. As the number of hops increases, the signaling overhead will increase exponentially. Another existing scheduling approach is: the upper computer allocates transmission resources first, then uses the resources to send image data to the first lower computer, and simultaneously the upper computer allocates shared transmission resources to all the lower computers, the first lower computer contends for the shared transmission resources in a contention mode (such as an LBT or CCA mode) in the shared transmission resources after receiving the image data, and then the first lower computer can send the image data to the mobile terminal after the contention is successful. Although the scheduling method reduces the signaling overhead, a certain amount of signaling overhead is still required to be spent when the shared transmission resource is contended, and in addition, for the lower computer with larger hop count, the lower computer cannot contend in the whole shared transmission resource, which reduces the probability of successful contention of the lower computer with larger hop count, thereby reducing the data transmission rate. The present application aims to solve the problems of the prior art by means of some means and ways that are not overly complex.
Example 1
FIG. 2 is a method flow diagram of one embodiment of the present application. As shown, the method of the present application comprises the steps of:
step 1: generating image data by an upper computer;
step 2: after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource; in the example of fig. 1, for example, the hop count of the first lower computer is 1, so the first hop count indicator indicates "1", the first transmission resource indication message may further include a routing table, which may indicate whether the first lower computer needs to send image data to the second lower computer or the mobile terminal, and in other embodiments, the routing table may be sent by the upper computer to the first lower computer through other signaling;
step 3: after the upper computer sends a first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period; in one embodiment, a timing block diagram of one embodiment of the present application may be shown by FIG. 3. As shown in fig. 3, the time periods may occur periodically, for example, in fig. 3, the first period includes a first time period, a second time period, a third time period, and a fourth time period that occur sequentially in time, although in other embodiments, more time periods may be included in one period. After the fourth period of the first period in fig. 3, a second period in which the first period, the second period, the third period, and the fourth period which appear in time sequentially are still included is started (the third period and the fourth period of the second period are not shown). Furthermore, in one embodiment, although not shown in the figures, there may be a certain time interval between the first period and the second period;
step 4: after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or the second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, and the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource.
Example 2
In embodiment 2, the first lower computer sends a second transmission resource indication message to the mobile terminal, wherein the second transmission resource indication message includes an indication of a second transmission resource, and the second transmission resource indication message does not include a hop count indicator, wherein the second transmission resource is located within a second time period; in this embodiment, since the mobile terminal is the last hop in the transmission path, the hop count indicator may not be included in the second transmission resource indication message, which may save signaling overhead; wherein the method further comprises: after the first lower computer transmits the second transmission resource indication message to the mobile terminal, the first lower computer transmits the generated image data to the mobile terminal on the second transmission resource.
Example 3
In embodiment 3, the first lower computer sends a second transmission resource indication message to the second lower computer, wherein the second transmission resource indication message includes a second hop count indicator and an indication of the second transmission resource; for example, in the example shown in fig. 1, the hop count of the second lower computer is 2, and thus, the second hop count indicator may indicate "2"; wherein the method further comprises:
after the first lower computer sends the second transmission resource indication message to the second lower computer, the first lower computer sends the generated image data to the second lower computer on the second transmission resource;
after the second lower computer receives the generated image data, the second lower computer sends a third transmission resource indication message to the mobile terminal or a third lower computer, wherein the third transmission resource indication message at least comprises an indication of a third transmission resource, the third transmission resource is determined by the second lower computer based on the second hop count indicator and the second transmission resource, and the third transmission resource is located in a third time period.
In a preferred embodiment, determining, by the first lower computer, the second transmission resource based on the first hop count indicator and the first transmission resource comprises the steps of:
determining, by the first lower computer, a first mapping table based on the first hop indicator, wherein the first mapping table records an association relationship between transmission resources in the first time period and transmission resources in the second time period, and the first mapping table includes an association relationship between the first transmission resources and the second transmission resources; in one embodiment, the first mapping table may have the following format:
TABLE 1
In one embodiment, the upper computer may send image data to the first lower computer at a first transmission resource of a time a1 and a frequency b1, after the first lower computer receives the image data at the first transmission resource, the first lower computer first reads the first hop indicator, so as to determine that the hop count of the first lower computer in the current transmission is 1, then, based on that the hop count of the first lower computer in the current transmission is 1, the first lower computer invokes a first mapping table in a memory, and then, according to a corresponding relation between a first transmission resource of a frequency b1 and a second transmission resource of a time c1 and a frequency d1 in the table, determines that the second transmission resource is a resource of a time c1 and a frequency d 1; it will be appreciated by those skilled in the art that the first mapping table has only two columns, wherein the first column describes the locations of the transmission resources in the first time period and the second column describes the locations of the transmission resources in the second time period. The first mapping table does not record the positions of transmission resources in other time periods, so that the size of the mapping table can be effectively reduced, and the speed of reading the mapping table by a lower computer is improved; it will be appreciated by those skilled in the art that the resources at time a1, frequency b1 and time a2, frequency b2 may be frequency-divided, time-divided, or frequency-and time-divided;
the second transmission resource is determined by the first lower computer based on the first mapping table and the first transmission resource.
Example 4
In embodiment 4, determining, by the second lower computer, the third transmission resource based on the second hop count indicator and the second transmission resource includes the steps of:
determining, by the second lower computer, a second mapping table based on the second hop indicator, wherein the second mapping table records association between transmission resources in the second time period and transmission resources in the third time period, and the second mapping table includes association relationships between the second transmission resources and the third transmission resources; in one embodiment, the second mapping table may have the following format:
TABLE 2
In one embodiment, the first lower computer may send image data to the second lower computer at a second transmission resource of a time c1 and a frequency d1, after the second lower computer receives the image data at the second transmission resource, the second lower computer first reads the second hop indicator, thereby determining that the hop count of the second lower computer in the current transmission is 2, then based on the hop count of the second lower computer in the current transmission is 2, the second lower computer invokes the second mapping table in the memory, and then determines that the third transmission resource is a resource of a time e1 and a frequency f1 according to the corresponding relation between the second transmission resource of the time c1 and the frequency d1 and the third transmission resource of the time e1 and the frequency f1 in the table; it will be appreciated by those skilled in the art that the second mapping table has only two columns, wherein the first column describes the locations of the transmission resources in the second time period and the second column describes the locations of the transmission resources in the third time period. The second mapping table does not record the position of the transmission resource in the first time period, so that the size of the mapping table can be effectively reduced, and the speed of reading the mapping table by a lower computer is improved;
the third transmission resource is determined by the second lower computer based on the second mapping table and the second transmission resource.
Example 5
In embodiment 5, the method further comprises:
generating new image data by the upper computer;
after the upper computer generates new image data, the upper computer sends a fourth transmission resource indication message to the second lower computer, wherein the fourth transmission resource indication message comprises a third hop count indicator and an indication for a fourth transmission resource, the first hop count indicator and the third hop count indicator indicate the same hop count, and the fourth transmission resource is located in the first time period; in one embodiment, the fourth transmission resource being located in the first period may refer to the fourth transmission resource being located in the same first period as the first transmission resource, and in one embodiment, the fourth transmission resource being located in the first period may refer to the fourth transmission resource being located in the first period in the second period, and the first transmission resource being located in the first period;
after the upper computer sends a fourth transmission resource indication message to the second lower computer, the upper computer sends the generated new image data to the second lower computer on the fourth transmission resource;
after the second lower computer receives the generated image data, the second lower computer sends a fifth transmission resource indication message to the mobile terminal or the third lower computer, wherein the fifth transmission resource indication message at least comprises an indication of a fifth transmission resource, the fifth transmission resource is determined by the second lower computer based on the third hop count indicator and the fourth transmission resource, and the fifth transmission resource is located in a second time period;
determining, by the second lower computer, the fifth transmission resource based on the third hop count indicator and the fourth transmission resource comprises the steps of:
determining, by the second lower computer, a third mapping table based on the third hop indicator, where the third mapping table records an association of transmission resources in the first time period and transmission resources in the second time period, and the third mapping table includes an association relationship of fourth transmission resources and fifth transmission resources; in one embodiment, the third mapping table may have the following format:
TABLE 3 Table 3
| Fourth transmission resource location | Fifth transmission resource location |
| Time a1, frequency b1 | Time c1, frequency d1 |
| Time a2, frequency b2 | Time c2, frequency d2 |
| Time a3, frequency b3 | Time c3, frequency d3 |
| Time a4, frequency b4 | Time c4, frequency d4 |
In one embodiment, the upper computer may send image data to the second lower computer at the time a2 and on the fourth transmission resource of the frequency b2, after the second lower computer receives the image data on the fourth transmission resource, the second lower computer first reads the third hop indicator, so as to determine that the hop count of the second lower computer in the current transmission is 1, then based on that the hop count of the second lower computer in the current transmission is 1, the second lower computer invokes the third mapping table in the memory (it can be understood that the second lower computer at least stores the second mapping table and the third mapping table respectively), and then determines that the fifth transmission resource is the resource of the time c2 and the resource of the frequency d2 according to the corresponding relation between the fourth transmission resource of the frequency b2 and the fifth transmission resource of the time c2 and the frequency d2 in the table; it will be appreciated by those skilled in the art that the third mapping table has only two columns, wherein the first column describes the locations of the transmission resources in the first time period and the second column describes the locations of the transmission resources in the second time period. The second mapping table does not record the position of the transmission resource in the third time period or the fourth time period, so that the size of the mapping table can be effectively reduced, and the speed of reading the mapping table by a lower computer is improved;
the fifth transmission resource is determined by the second lower computer based on the third mapping table and the fourth transmission resource.
It is to be understood that the above-described embodiments of the present application are merely illustrative of or explanation of the principles of the present application and are in no way limiting of the application. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application should be included in the scope of the present application. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (4)
1. An image transmission method, characterized in that the image transmission method comprises:
generating image data by an upper computer;
after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource;
after the upper computer sends the first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period;
after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or a second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, and the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource;
the first lower computer sends a second transmission resource indication message to a second lower computer, wherein the second transmission resource indication message comprises a second hop count indicator and an indication of a second transmission resource, and the second transmission resource is located in a second time period;
the image transmission method further comprises the following steps:
after the first lower computer sends the second transmission resource indication message to the second lower computer, the first lower computer sends the generated image data to the second lower computer on the second transmission resource;
after the second lower computer receives the generated image data, the second lower computer sends a third transmission resource indication message to the mobile terminal or a third lower computer, wherein the third transmission resource indication message at least comprises an indication of a third transmission resource, the third transmission resource is determined by the second lower computer based on the second hop count indicator and the second transmission resource, and the third transmission resource is located in a third time period;
wherein determining, by a first lower computer, the second transmission resource based on the first hop count indicator and the first transmission resource comprises the steps of:
determining, by a first lower computer, a first mapping table based on the first hop indicator, where the first mapping table records an association of transmission resources in the first period of time and transmission resources in the second period of time, and the first mapping table includes an association of the first transmission resources and the second transmission resources;
determining by a first lower computer the second transmission resource based on the first mapping table and the first transmission resource,
the upper computer sends image data to the first lower computer on a first transmission resource of a time a1 and a frequency b1, the first lower computer firstly reads a first hop indicator after receiving the image data on the first transmission resource, then the first lower computer calls the first mapping table in the memory based on the first hop indicator of the first lower computer in the current transmission, and then the first lower computer determines that the second transmission resource is the resource of the time c1 and the frequency d1 according to the corresponding relation between the first transmission resource of the frequency b1 and the second transmission resource of the time c1 and the second transmission resource of the frequency d1 in the table;
determining, by a second lower computer, the third transmission resource based on the second hop count indicator and the second transmission resource comprises the steps of:
determining, by a second lower computer, a second mapping table based on the second hop count indicator, where the second mapping table records association between transmission resources in the second time period and transmission resources in the third time period, and the second mapping table includes association between the second transmission resources and the third transmission resources;
the first lower computer sends image data to a second lower computer on a second transmission resource of the frequency d1 at the time c1, after the second lower computer receives the image data on the second transmission resource, the second lower computer firstly reads a second hop indicator, then based on the hop count of the second lower computer in the transmission is the second hop indicator, the second lower computer invokes a second mapping table in a memory, and then according to the corresponding relation between the second transmission resource of the frequency d1 and the third transmission resource of the time e1 and the frequency f1 in the table, the third transmission resource is determined to be the resource of the time e1 and the frequency f 1;
the third transmission resource is determined by a second lower computer based on the second mapping table and the second transmission resource.
2. The image transmission method according to claim 1, wherein the image transmission method further comprises:
generating new image data by the upper computer;
after the upper computer generates new image data, sending a fourth transmission resource indication message to the second lower computer by the upper computer, wherein the fourth transmission resource indication message comprises a third hop count indicator and an indication for a fourth transmission resource, wherein the first hop count indicator and the third hop count indicator indicate the same hop count, and the fourth transmission resource is positioned in the first time period;
after the upper computer sends the fourth transmission resource indication message to the second lower computer, the upper computer sends the generated new image data to the second lower computer on the fourth transmission resource;
after the second lower computer receives the generated image data, a fifth transmission resource indication message is sent to the mobile terminal or the third lower computer by the second lower computer, wherein the fifth transmission resource indication message at least comprises an indication of a fifth transmission resource, the fifth transmission resource is determined by the second lower computer based on the third hop count indicator and the fourth transmission resource, and the fifth transmission resource is located in the second time period.
3. The image transmission method of claim 2, wherein determining, by the second lower computer, the fifth transmission resource based on the third hop count indicator and the fourth transmission resource comprises the steps of:
determining, by a second lower computer, a third mapping table based on the third hop indicator, where the third mapping table records association between transmission resources in the first period and transmission resources in the second period, and the third mapping table includes association between the fourth transmission resource and the fifth transmission resource;
the fifth transmission resource is determined by a second lower computer based on the third mapping table and the fourth transmission resource.
4. An image transmission system, characterized in that it comprises means for implementing the following operations:
generating image data by an upper computer;
after the upper computer generates image data, the upper computer sends a first transmission resource indication message to the first lower computer, wherein the first transmission resource indication message comprises a first hop count indicator and an indication of a first transmission resource;
after the upper computer sends the first transmission resource indication message to the first lower computer, the upper computer sends the generated image data to the first lower computer on the first transmission resource, wherein the first transmission resource is positioned in a first time period;
after the first lower computer receives the generated image data, the first lower computer sends a second transmission resource indication message to the mobile terminal or a second lower computer, wherein the second transmission resource indication message at least comprises an indication of a second transmission resource, the second transmission resource is determined by the first lower computer based on the first hop indicator and the first transmission resource,
the first lower computer sends a second transmission resource indication message to a second lower computer, wherein the second transmission resource indication message comprises a second hop count indicator and an indication of a second transmission resource, and the second transmission resource is located in a second time period;
wherein the image transmission system is further configured to:
after the first lower computer sends the second transmission resource indication message to the second lower computer, the first lower computer sends the generated image data to the second lower computer on the second transmission resource;
after the second lower computer receives the generated image data, the second lower computer sends a third transmission resource indication message to the mobile terminal or a third lower computer, wherein the third transmission resource indication message at least comprises an indication of a third transmission resource, the third transmission resource is determined by the second lower computer based on the second hop count indicator and the second transmission resource, the third transmission resource is located in a third time period,
wherein determining, by a first lower computer, the second transmission resource based on the first hop count indicator and the first transmission resource comprises the steps of:
determining, by a first lower computer, a first mapping table based on the first hop indicator, where the first mapping table records an association of transmission resources in the first period of time and transmission resources in the second period of time, and the first mapping table includes an association of the first transmission resources and the second transmission resources;
determining by a first lower computer the second transmission resource based on the first mapping table and the first transmission resource,
the upper computer sends image data to the first lower computer on a first transmission resource of a time a1 and a frequency b1, the first lower computer firstly reads the first hop indicator after receiving the image data on the first transmission resource, so as to determine the first hop indicator of the first lower computer in the current transmission, then the first lower computer invokes the first mapping table in the memory based on the first hop indicator of the first lower computer in the current transmission, and then the first lower computer determines that the second transmission resource is a resource of a time c1 and a frequency d1 according to the corresponding relation between the first transmission resource of the time a1 and the frequency b1 and the second transmission resource of the time c1 and the frequency d1 in the table;
determining, by a second lower computer, the third transmission resource based on the second hop count indicator and the second transmission resource comprises the steps of:
determining, by a second lower computer, a second mapping table based on the second hop count indicator, where the second mapping table records association between transmission resources in the second time period and transmission resources in the third time period, and the second mapping table includes association between the second transmission resources and the third transmission resources;
the third transmission resource is determined by a second lower computer based on the second mapping table and the second transmission resource.
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| US8990248B1 (en) * | 2006-12-13 | 2015-03-24 | Cisco Technology, Inc. | Peer-to-peer network image distribution hierarchy |
| JP5321569B2 (en) * | 2010-12-02 | 2013-10-23 | コニカミノルタ株式会社 | Image processing system, image processing method, image processing server, image forming apparatus, and image processing program |
| CN105357758A (en) * | 2014-08-19 | 2016-02-24 | 中兴通讯股份有限公司 | Method and device for indicating resource scheduling information, and method and device for allocating resource scheduling information |
| CN107172466A (en) * | 2017-05-25 | 2017-09-15 | 环球智达科技（北京）有限公司 | Shared image data display method and system |
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| CN114271000A (en) * | 2019-08-21 | 2022-04-01 | 现代自动车株式会社 | Method for configuring side link resource in communication system |
| US11652668B2 (en) * | 2020-01-16 | 2023-05-16 | Qualcomm Incorporated | Frequency division multiplexing mapping of transmission configuration indicator states to a control channel |
| CN111600757A (en) * | 2020-05-18 | 2020-08-28 | 郑州轻工业大学 | Method and system for rendering three-dimensional image of distributed processing computer |
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