TW202029705A - Data transmitting method and data transmitting system - Google Patents

Abstract

A data transmitting method and a data transmitting system are provided. The data transmitting method includes: an electronic device transmitting a data transmitting request of a first data transmitting rate to a server; and the server transmitting a data corresponding to a second data transmitting rate to the electronic device before a first time point, wherein the second data transmitting rate is less than the first data transmitting rate.

Description

Data transmission method and data transmission system

This disclosure relates to a data transmission method and a data transmission system, and more particularly to a data transmission method and a data transmission system that avoids users from waiting for data.

Network data transmission is a load balancing task. Some mechanisms are used to control the path of resources through the network to avoid congestion, and at the same time improve network throughput and network resource utilization (network resource utilization) To maintain the quality of network data received by end users.

At present, the main causes of network delay or unstable network quality are propagation delay, transmission delay, nodal processing delay, and queuing delay. Transmission delay is the time it takes for the packet message to be transmitted on the physical network, that is, the transmission distance is related to the transmission speed of the electronic signal. The transmission delay is related to the hardware transmission speed of the transmitting end and the receiving end. For example, the transmission speed of some transmission equipment is 100 Mbps, and the transmission speed of some transmission equipment is 10 Mbps. The node processing delay is the time it takes for the router to process the packet and the time it takes to redistribute the packet path after receiving the data. Queue delay may cause delay because the router may not be able to process all the packets. It may be that the router itself cannot handle excessive information or too many devices are allocated to a common router.

In the application of network streaming, when the network is unstable, users may face the problem of image degradation or image interruption. Even the waiting screen for only a few seconds will greatly affect the user's interest in viewing. Therefore, how to transmit data over the network without the user waiting for the data is the goal that those skilled in the art should strive for.

The present disclosure provides a data transmission method and a data transmission system, which transmits data over the network and prevents users from waiting for data.

The present disclosure proposes a data transmission method, including: an electronic device sends a data transmission request of a first data transmission rate to a server; and the server transmits data corresponding to a second data transmission rate to the electronic device before the first time point, wherein the first The second data transmission rate is less than the first data transmission rate.

In an embodiment of the present disclosure, when the bandwidth before the first time point is greater than the second data transmission rate, the server uses the bandwidth to further transmit data corresponding to the first data transmission rate to the electronic device before the first time point .

In an embodiment of the present disclosure, when the bandwidth of the time interval before the first time point is greater than the second data transmission rate, the server transmits the data corresponding to the second data transmission rate and the first data transmission in the time interval Rate the information to the electronic device.

In an embodiment of the present disclosure, when the repetitiveness of the first data played by the electronic device at the first time point and the second data played by the electronic device at the second time point after the first time point is greater than the threshold value, the server Transmit the second data and the different parts of the first data to the electronic device before the first time point.

A data transmission system includes a server and an electronic device coupled to the server. The electronic device transmits a data transmission request of the first data transmission rate to the server. The server transmits data corresponding to the second data transmission rate to the electronic device before the first time point, where the second data transmission rate is lower than the first data transmission rate.

In an embodiment of the present disclosure, when the bandwidth before the first time point is greater than the second data transmission rate, the server uses the bandwidth to further transmit data corresponding to the first data transmission rate to the electronic device before the first time point .

In an embodiment of the present disclosure, when the bandwidth of the time interval before the first time point is greater than the second data transmission rate, the server transmits the data corresponding to the second data transmission rate and the first data transmission in the time interval Rate the information to the electronic device.

In an embodiment of the present disclosure, when the repetitiveness of the first data played by the electronic device at the first time point and the second data played by the electronic device at the second time point after the first time point is greater than the threshold value, the server Transmit the second data and the different parts of the first data to the electronic device before the first time point.

Based on the above, the data transmission method and data transmission system of the present disclosure will transmit a data transmission request of the first data transmission rate to the server through the electronic device. The server transmits data with a second data transmission rate that is less than the first data transmission rate to the electronic device, for example, a few seconds before transmitting the data. In this way, the server can transmit subsequent data corresponding to the first data transmission rate through the additional bandwidth greater than the second data transmission rate. In addition, when the repeatability of continuous data is greater than the threshold, the server will only transmit different parts of the continuous data to the electronic device.

In order to make the above-mentioned features and advantages of the present disclosure more obvious and understandable, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

FIG. 1 is a block diagram of a data transmission system according to an embodiment of the disclosure.

Please refer to FIG. 1, the data transmission system 100 of an embodiment of the disclosure includes a server 110 and an electronic device 120 coupled to the server 110. The electronic device 120 is, for example, a personal computer, a notebook computer, a smart phone, a tablet computer, or other similar components. The dynamic or static image data 111 of the server 110 is encoded by the compression module 112 and transmitted to the electronic device 120 through unicast or multicast. The electronic device 120 can temporarily store the received data in the memory 121, and the application 122 obtains the data from the memory 121 to perform a decoding operation and play it for the user to watch. The memory 121 includes a buffer memory.

When the user requests the server 110 to download data through the electronic device 120, the server 110 will first provide low-resolution or high-compression data. When there is additional bandwidth, the electronic device 120 can continue to download the required data later through the additional bandwidth. This can prevent users from waiting for data.

In one embodiment, the electronic device 120 transmits a data transmission request of the first data transmission rate to the server 110. The server 110 transmits data corresponding to the second data transmission rate to the electronic device 120 before the first time point, where the second data transmission rate is lower than the first data transmission rate. When the bandwidth before the first time point is greater than the second data transmission rate, the server 110 uses the bandwidth to further transmit data corresponding to the first data transmission rate to the electronic device 120 before the first time point. When the bandwidth of the time interval before the first time point is greater than the second data transmission rate, the server 110 transmits data corresponding to the second data transmission rate and data corresponding to the first data transmission rate to the electronic device 120 in the time interval.

For example, the electronic device 120 transmits a data transmission request of 1350 kbps (ie, the first data transmission rate) to the server 110. The server 110 transmits data corresponding to 400 kbps (ie, the second data transmission rate) to the electronic device 120 in the first 5 seconds of data transmission, instead of transmitting data corresponding to 1350 kbps to the electronic device 120. Assuming that the bandwidth of the server 110 to the electronic device 120 in the first 5 seconds is 400 kbps, 1350 kbps, 1350 kbps, 2000 kbps, and 2000 kbps, respectively, the server 110 can have a total data transmission volume of 7100 kbps in the first 5 seconds. However, the 400 kbps data transmitted by the server 110 every second in the first 5 seconds only accounts for the data transmission volume of 2000 kbps, so the server 110 has a remaining transmission volume of 5100 kbps in the first 5 seconds. This 5100kbps data volume is equivalent to 3.7 seconds of 1350kbps data. In other words, if the data volume of 5100kbps is also transmitted to the electronic device 120 in the first 5 seconds, the electronic device can have 3.7 seconds of 1350kbps data as a buffer at the fifth second. Please refer to FIG. 2. FIG. 2 is an example of a data transmission method according to an embodiment of the present disclosure. When the current 4-second bandwidth is 400kbps, 1350kbps, 1350kbps, and 2000kbps, the data transmission of the server 110 is 400kbps, 1350kbps, 1350kbps, and 2000kbps, but the data usage of the electronic device 120 is only 400kbps, 400kbps, 400kbps, and 400kbps, respectively. Therefore, the excess 950kbps, 950kbps and 1600kbps can be used to transmit user request data corresponding to 1350kbps.

In one embodiment, when the repetition of the first data played by the electronic device 120 at the first time point and the second data played by the electronic device 120 at the second time point after the first time point is greater than the threshold, the server 110 The second data and the different part of the first data are transmitted to the electronic device 120 before the first time point. Following the above example, the server 120 uses 1350 kbps of 5100 kbps to transmit the 1350 kbps data to be played by the electronic device 120 in the 6th second. The electronic device 120 has a high repeatability of the 1350kbps data to be played in the 7th second and the 1350kbps data to be played in the 6th second, so the server 110 only needs to transmit the 1350kbps data to be played in the 7th second and the 1350kbps data to be played in the 6th second. Different parts, such as 400kbps data volume, to the electronic device 120. Since 5100kbps minus 1350kbps and 3750kbps, if the data in the next 10 seconds starting from the 6th second is highly repeatable with the 1350kbps data to be played in the 6th second, the server 110 can transmit at least 5* in the first 5 seconds The 1350kbps + 9*400kbps=4950kbps data other than the 400kbps data is sent to the electronic device 120, so that the electronic device 120 has more than 9 seconds of buffered data available for use at the 5th second.

FIG. 3 is a schematic diagram of network bandwidth changes according to an embodiment of the disclosure.

Please refer to Figure 3. The horizontal axis of Figure 3 is time and the vertical axis is network bandwidth. When the network bandwidth is greater than the amount of data required by the user at a specific time, the additional bandwidth 300 can be used to download buffered data for subsequent playback. In addition, the first few seconds will be played at a lower resolution.

FIG. 4 is a flowchart of a data transmission method according to an embodiment of the disclosure.

Referring to FIG. 4, in step S401, the electronic device sends a data transmission request to the server.

In step S402, the server detects the network bandwidth.

In step S403, the server transmits the low-resolution data to the electronic device before the first time point.

In step S404, the server determines whether the current data is the same as the previous data.

If the current data is different from the previous data, in step S405, the current data and the previous data are transmitted to the electronic device.

If the current data is the same as the previous data, in step S406, the previous data is played on the electronic device. And in step S407, the current data is sent to the buffer.

In summary, the data transmission method and data transmission system of the present disclosure will transmit a data transmission request of the first data transmission rate to the server through the electronic device. The server transmits data with a second data transmission rate that is less than the first data transmission rate to the electronic device, for example, a few seconds before transmitting the data. In this way, the server can transmit subsequent data corresponding to the first data transmission rate through the additional bandwidth greater than the second data transmission rate. In addition, when the repeatability of continuous data is greater than the threshold, the server will only transmit different parts of the continuous data to the electronic device.

Although this disclosure has been disclosed in the above embodiments, it is not intended to limit the disclosure. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of this disclosure. Therefore, The scope of protection of this disclosure shall be subject to those defined by the attached patent scope.

100: Data Transmission System 110: server 111: image data 112: Compression module 120: electronic device 121: memory 122: Application 300: additional bandwidth S401~S407: Steps of data transmission method

FIG. 1 is a block diagram of a data transmission system according to an embodiment of the disclosure. FIG. 2 is an example of a data transmission method according to an embodiment of the disclosure. FIG. 3 is a schematic diagram of network bandwidth changes according to an embodiment of the disclosure. FIG. 4 is a flowchart of a data transmission method according to an embodiment of the disclosure.

Claims (8)

A data transmission method including: An electronic device sends a data transmission request with a first data transmission rate to a server; and The server transmits a data corresponding to a second data transmission rate to the electronic device before a first time point, wherein the second data transmission rate is lower than the first data transmission rate. For the data transmission method described in claim 1, wherein when a bandwidth before the first time point is greater than the second data transmission rate, the server uses the bandwidth to further advance before the first time point The data corresponding to the first data transmission rate is transmitted to the electronic device. The data transmission method described in item 1 of the scope of patent application, wherein when the bandwidth of a time interval before the first time point is greater than the second data transmission rate, the server transmits at the time interval corresponding to The data at the second data transmission rate and the data corresponding to the first data transmission rate are sent to the electronic device. The data transmission method described in item 1 of the scope of patent application, wherein when a first data played by the electronic device at the first time point and the electronic device played at a second time point after the first time point The repeatability of a second data is greater than a threshold value, and the server transmits different parts of the second data and the first data to the electronic device before the first time point. A data transmission system including: A server; and An electronic device in which The electronic device sends a data transmission request with a first data transmission rate to a server; and The server transmits a data corresponding to a second data transmission rate to the electronic device before a first time point, wherein the second data transmission rate is lower than the first data transmission rate. For the data transmission system described in item 5 of the scope of patent application, when a bandwidth before the first time point is greater than the second data transmission rate, the server uses the bandwidth to further advance before the first time point The data corresponding to the first data transmission rate is transmitted to the electronic device. The data transmission system described in item 5 of the scope of patent application, wherein when the bandwidth of a time interval before the first time point is greater than the second data transmission rate, the server transmits at the time interval corresponding to The data at the second data transmission rate and the data corresponding to the first data transmission rate are sent to the electronic device. The data transmission system described in item 5 of the scope of patent application, wherein when the electronic device plays a first data at the first time point and the electronic device plays at a second time point after the first time point The repeatability of a second data is greater than a threshold value, and the server transmits different parts of the second data and the first data to the electronic device before the first time point.

Images