WO2020207044A1

WO2020207044A1 - Network transmission rate control method, apparatus, computer device and storage medium

Info

Publication number: WO2020207044A1
Application number: PCT/CN2019/124700
Authority: WO
Inventors: 郑自永
Original assignee: 京信通信系统（中国）有限公司
Priority date: 2019-04-08
Filing date: 2019-12-11
Publication date: 2020-10-15
Also published as: CN110062425A

Abstract

The present application relates to a network transmission rate control method, an apparatus, a computer device and a storage medium. By acquiring a maximum expected rate value of a network and RTT of an RLC layer, the method further obtains the product of the maximum expected rate value and the RTT to determine a bandwidth delay product, and adjusts a downlink queue buffer space at the current moment of the RLC layer according to the bandwidth delay product, to obtain the downlink queue buffer space at the next moment of the RLC layer, wherein, the downlink queue buffer space is matched with the maximum expected rate value. In the method, the adjusted downlink queue buffer space of the RLC layer is always matched with the maximum expected rate value of the network, therefore, the data transmission rate on the RLC layer can be effectively controlled when the downlink queue buffer space of the RLC layer is utilized to store data, so that the transmission rate of the network where a base station is located can be effectively controlled, the transmission rate of the network can be stabilized at the maximum expected rate value, and the reliability of network transmission is greatly improved.

Description

Method, device, computer equipment and storage medium for controlling network transmission rate

Technical field

This application relates to the field of mobile communication technology, and in particular to a method, device, computer equipment, and storage medium for controlling network transmission rate.

Background technique

With the continuous development and evolution of mobile communication technology, the wireless interface protocol (Long Term Evolution, LTE) has been widely used. In the LTE system, the data transmission rate can be controlled through the radio link control layer (Radio Link Control, RLC).

At present, in the data transmission process of the RLC layer, there is an important link, that is, sending data and receiving status reports, forming a closed-loop guaranteed transmission mechanism, that is, the RLC AM mode. In the RLC AM mode, the RLC layer usually adopts a method of discarding data packets or buffering data packets to control the rate of downlink sending data.

However, the foregoing method of buffering data packets to perform rate control has the problems of large resource overhead and unstable control rate.

Summary of the invention

Based on this, it is necessary to address the above technical problems and provide a network transmission rate control method, device, computer equipment, and storage medium that can effectively reduce resource overhead and can stably control the network transmission rate.

In the first aspect, an embodiment of the present application provides a method for controlling a network transmission rate, and the method includes:

Obtain the maximum expected rate of the network and the RTT of the RLC layer;

Determine the bandwidth-delay product according to the product of the maximum expected rate value and RTT;

Adjust the current downlink queue buffer space of the RLC layer according to the bandwidth-delay product to obtain the next downlink queue buffer space of the RLC layer. The next downlink queue buffer space matches the maximum expected rate value.

In the second aspect, an embodiment of the present application also provides a network transmission rate control device, which includes:

The acquisition module is used to acquire the maximum expected rate value of the network and the RTT of the RLC layer;

The determination module is used to determine the bandwidth-delay product according to the product of the maximum expected rate value and the RTT;

The control module is used to adjust the current downlink queue buffer space of the RLC layer according to the bandwidth and delay product to obtain the next downlink queue buffer space of the RLC layer, and the next downlink queue buffer space matches the maximum expected rate value.

In a third aspect, an embodiment of the present application further provides a computer device, including a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the computer program described in any one of the embodiments of the first aspect is implemented Control method of network transmission rate.

In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the network transmission rate control according to any one of the embodiments of the first aspect is realized method.

The method, device, computer equipment and storage medium for controlling the network transmission rate provided by the embodiments of the present application obtain the maximum expected rate value of the network and the RTT of the RLC layer, and further obtain the product of the maximum expected rate value and the RTT to determine Bandwidth delay product, and adjust the current downlink queue buffer space of the RLC layer according to the bandwidth delay product to obtain the next downlink queue buffer space of the RLC layer, where the downlink queue buffer space matches the maximum expected rate value. In this method, the downstream queue buffer space of the RLC layer is dynamically adjusted according to the change of the bandwidth and delay product, so that the adjusted downstream queue buffer space of the RLC layer always matches the maximum expected rate value of the network. Using the downlink queue buffer space of the RLC layer to store data can effectively control the data transmission rate on the RLC layer, thereby effectively controlling the transmission rate of the network where the base station is located, so that the network transmission rate can be stabilized at the maximum expected rate value, which greatly improves the network Reliability of transmission. And the downlink queue buffer space always matches the maximum expected rate value, so there is no extra buffer space, which greatly reduces the resource overhead occupied by the downlink queue buffer space of the RLC layer, and greatly improves the network system where the base station is located. Transmission performance.

Description of the drawings

FIG. 1 is a schematic diagram of an application scenario provided by an embodiment;

2 is a flowchart of a method for controlling network transmission rate according to an embodiment;

FIG. 3 is a flowchart of a method for obtaining RTT according to an embodiment;

4 is a flowchart of an implementation manner of S202 in the embodiment of FIG. 3;

FIG. 4A is a schematic diagram of determining RTT according to an embodiment;

FIG. 5 is a flowchart of a method for controlling network transmission rate according to an embodiment;

Fig. 6 is a flowchart of a method for controlling network transmission rate according to an embodiment;

FIG. 6A is a schematic diagram of a network transmission process provided by an embodiment;

FIG. 7 is a schematic structural diagram of a device for controlling network transmission rate according to an embodiment;

FIG. 8 is a schematic structural diagram of a device for controlling network transmission rate according to an embodiment;

FIG. 9 is a schematic structural diagram of a device for controlling network transmission rate according to an embodiment;

FIG. 10 is a schematic structural diagram of a device for controlling network transmission rate according to an embodiment;

FIG. 11 is a schematic structural diagram of a network transmission rate control device provided by an embodiment; and

FIG. 12 is a schematic diagram of the internal structure of a computer according to an embodiment.

detailed description

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

The method for controlling the network transmission rate provided in this application can be applied to the application scenario shown in FIG. 1, in which the base station and the terminal are connected to each other through the network, which can be a wired network connection or a wireless connection. Network connection. Among them, the base station is used to send downlink messages to the terminal, and the terminal is used to send uplink messages to the base station. The communication protocol between the base station and the terminal can be used in a 2G/3G/4G/5G network. It should be noted here that the LTE system shown in Figure 1 is only an example, and this embodiment is not limited to this. , As long as the RLC protocol exists, it conforms to the application scenario where this solution is located, and is within the protection scope of this application.

In the LTE system shown in Figure 1, the physical layer (Physical Layer, PHY), the Media Access Control layer (Media Access Control, MAC), the Radio Link Control layer (Radio Link Control, RLC), and the packet data convergence protocol layer (Packet Data Convergence Protocol, PDCP) and GPRS Tunneling Protocol (GPRS Tunneling Protocol, GTP) together form the protocol architecture of network transmission. In practical applications, base stations and terminals can implement message transmission and communication based on the network protocol architecture. Interactive. The foregoing terminal may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, which are not limited in this embodiment.

It should be noted that the execution body of the method for controlling network transmission rate provided by this application is a base station, where the execution body may also be a computer device applying the above-mentioned network transmission protocol architecture, or a communication device, wherein the communication The device can realize part or all of the method for controlling the network transmission rate through software, hardware, or a combination of software and hardware.

FIG. 2 is a flowchart of a method for controlling network transmission rate according to an embodiment. The executor of this embodiment is a base station, and this embodiment relates to a specific process for the base station to control the network transmission rate. As shown in Figure 2, the method includes:

S101. Obtain the maximum expected rate value of the network and the RTT of the RLC layer.

Among them, the maximum expected rate value can be pre-defined by the user according to actual application requirements, and is used to indicate the transmission rate that the user desires to match the network transmission performance. Round-Trip Time (RTT) represents the round-trip time of communication between the base station and the terminal in network transmission. For example, as shown in Figure 1, the base station sends information to the terminal, and the terminal then feeds the message back to the base station. The time is RTT. It can be understood from the above description that the RTT of the RLC layer means the time it takes for the base station to deliver the downlink data packet of the RLC layer to the terminal, and the terminal feeds back the uplink response message to the RLC layer of the base station.

In this embodiment, on the one hand, the base station can obtain the maximum expected rate value of the network through the information carrying the rate value input by the user; optionally, the base station can also obtain the maximum expected rate value of the network from a memory pre-stored with the maximum expected rate value. Rate value; Optionally, the base station may also obtain the maximum expected rate value of the network from a database pre-recorded with the maximum expected rate value, which is not limited in this embodiment. On the other hand, the base station can monitor the time when the RLC layer sends the downlink data packet and the time when the RLC layer receives the uplink response message, and further obtain the RTT of the RLC layer according to the two monitored times.

S102: Determine the bandwidth-delay product according to the product of the maximum expected rate value and the RTT.

This embodiment relates to the method for determining the bandwidth-delay product. In this embodiment, when the base station obtains the maximum expected rate value of the network and the RTT of the RLC layer, the product of the maximum expected rate value and the RTT can be directly used as the bandwidth. Delay product. Optionally, the base station can also perform correction processing to increase the weight of RTT in combination with actual application conditions, and further use the product of the corrected RTT and the maximum expected rate value as the bandwidth delay product.

S103. Adjust the current downlink queue buffer space of the RLC layer according to the bandwidth and delay product to obtain the next downlink queue buffer space of the RLC layer, where the next downlink queue buffer space matches the maximum expected rate value.

Among them, the downlink queue buffer space is set in the RLC layer of the base station to buffer data packets transmitted by the upper layer of the RLC layer (for example, the PDCP layer), so that the RLC layer performs corresponding RLC layer processing (for example, Concatenation or encapsulation processing), and buffer the data packets to be transmitted on the RLC layer, so that the RLC layer sends the data packets to the lower layer (for example, the MAC layer). The size of the buffer space of the aforementioned downlink queue can be initialized and defined, and the specific corresponding space size is determined according to actual application conditions. The size of the downlink queue buffer space at different times can be different or the same.

In this embodiment, during network transmission, when the base station obtains the bandwidth-delay product at the current time of the network, it can further adjust the RLC layer's corresponding downlink queue buffer space at the current time according to the bandwidth-delay product, and The adjusted downstream queue buffer space is used as the downstream queue buffer space of the RLC layer at the next moment, so that in the network transmission process at the next moment, the data packets obtained by the RLC layer from the upper layer can be buffered in the adjusted downstream queue buffer space In this example, the network transmission rate at the next moment can match the adjusted downlink queue buffer space. In this embodiment, the downlink queue buffer space at the next moment matches the maximum expected rate value. Therefore, the next The network transmission rate at the moment can be infinitely close to the maximum expected rate value.

The method for controlling the network transmission rate provided by this embodiment is to obtain the maximum expected rate value of the network and the RTT of the RLC layer, and further obtain the product of the maximum expected rate value and the RTT to determine the bandwidth delay product, and according to the bandwidth The delay product adjusts the current downlink queue buffer space of the RLC layer to obtain the next downlink queue buffer space of the RLC layer, where the downlink queue buffer space matches the maximum expected rate value. In this method, because the downstream queue buffer space of the RLC layer is dynamically adjusted according to the change of the bandwidth and delay product, the adjusted downstream queue buffer space of the RLC layer always matches the maximum expected rate value of the network. Therefore, When using the downlink queue buffer space of the RLC layer to store data, it can effectively control the data transmission rate on the RLC layer, thereby effectively controlling the transmission rate of the network where the base station is located, so that the network transmission rate can be stabilized at the maximum expected rate value, which greatly improves Reliability of network transmission. And the downlink queue buffer space always matches the maximum expected rate value, so there is no extra buffer space, which greatly reduces the resource overhead occupied by the downlink queue buffer space of the RLC layer, and greatly improves the network system where the base station is located. Transmission performance.

In an embodiment, this application also provides a method for obtaining RTT. As shown in FIG. 3, the method specifically includes:

S201: Receive a status report sent by a terminal, and obtain a receiving time of the received status report; wherein, the status report is a status report for the issued downlink data packet of the RLC layer.

Among them, the status report is used to describe whether the terminal successfully receives the message sent by the base station. In practical applications, when the base station sends a downlink message to the terminal, the terminal will send a corresponding message to the base station after receiving the message. Status report so that the base station knows whether the terminal has successfully received the message sent above.

In this embodiment, the base station delivers the downlink data packet of the RLC layer to the terminal. After receiving the downlink data packet, the terminal sends a status report associated with the downlink data packet to the base station to inform the base station of the reception of the aforementioned downlink data packet , So that the base station can perform subsequent work after receiving the status report. The base station can record the time of receiving the status report while receiving the status report for later use.

S202: Determine the RTT according to the sending time and the receiving time of the downlink data packet.

When the base station obtains the sending time of the downlink data packet of the RLC layer and the receiving time of the corresponding status report, it can further calculate the sending time and the receiving time directly to obtain the RTT; optionally, it can also further download The sending time or receiving time is corrected, and the corrected sending time and receiving time are calculated to obtain the RTT.

Optionally, determining the RTT according to the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response includes: according to the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response Difference, determine RTT. This embodiment relates to a specific method for determining RTT, that is, directly performing difference calculation between the sending time and the receiving time to obtain the RTT.

The above embodiment determines the RTT based on the receiving time of the status report and the sending time of sending the downlink data packet of the RLC layer. This method of obtaining RTT makes full use of the characteristics of the status report transmission mechanism in the RLC layer, so it can be controlled by the base station In the process of network transmission rate, a more accurate RTT is provided, so that the bandwidth-delay product determined according to RTT is relatively accurate, so that the downstream queue buffer space of the RLC layer is adjusted according to the bandwidth-delay product to match the maximum transmission rate value. Improve the stability of the network transmission rate.

In an embodiment, FIG. 4 is a flowchart of an implementation manner of S202 in the embodiment in FIG. 3. This embodiment relates to a specific process for the base station to obtain the RTT of the RLC layer. As shown in Figure 4, the process includes:

S301. Obtain a response identifier from the status report.

The identification of the response response is used to characterize the confirmed downlink data packet of the RLC layer, and it can be represented by numbers, letters, sequence numbers, etc. In this embodiment, when the base station obtains the status report, the identification of the response response can be further extracted from the status report, so as to learn the status that the downlink data packet of the RLC layer is confirmed to be received according to the identification of the response response.

S302: Determine whether there is an identifier of the downlink data packet corresponding to the identifier of the response response in the preset local table, if it exists, execute S303, and if it does not exist, execute S305.

The local table records the corresponding relationship between the identifier of the response response and the identifier of the downlink data packet, and the corresponding relationship can be defined by the base station in advance. The local table also records the identifier of the downlink data packet and the corresponding downlink data packet. The corresponding relationship between the sending moments, and the corresponding relationship can be recorded in real time by the base station during network transmission. The above-mentioned local table can be stored in the database of the base station or in the memory of the base station. This embodiment is not limited, as long as it can meet the requirements of the base station to write and read data at any time.

In this embodiment, when the base station obtains the identifier of the response response from the status report, it can further query the pre-stored local table, according to the difference between the identifier of the response response recorded in the local table and the identifier of the downlink data packet. To determine whether there is an identifier of the downlink data packet corresponding to the identifier of the response response in the local table, if it exists, S303 is specifically executed, and if it does not exist, S305 is specifically executed.

S303: Determine from the local table whether there is a corresponding relationship between the downlink data packet corresponding to the response response and the delivery time, if there is a corresponding relationship, perform S304, if there is no corresponding relationship, perform S305.

This embodiment relates to an application scenario where there is an identifier of a downlink data packet corresponding to the identifier of the response response in the local table. In this application scenario, the base station performs the next step of judgment work, that is, according to the downlink data packet recorded in the local table. The corresponding relationship between the identifier and the sending time of the corresponding downlink data packet, determine whether there is a delivery time corresponding to the identifier of the downlink data packet in the local table, if it exists, perform S304 specifically, if there is no corresponding relationship, perform S305 .

S304: Determine the RTT according to the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response.

This embodiment relates to an application scenario where there is a delivery time corresponding to the identifier of a downlink data packet in the local table. In this application scenario, the base station determines the RTT according to the delivery time of the downlink data packet and the previously recorded reception time of the status report .

For an exemplary description of the above process, refer to the schematic diagram of network transmission shown in FIG. 4A. During the network transmission process, the base station sends the downlink data packet of the RLC layer, records the downlink time of transmission (T_D in the figure), the base station receives the status report of the RLC layer, and records the receiving time of the receiving status report (as shown in the figure) T_P), and finally determine the difference between the downlink time (T_D) and the receiving time (T_P) as RTT.

S305. Stop adjusting the buffer space of the downlink queue at the current moment of the RLC layer.

This embodiment relates to an application scenario when the identifier of a downlink data packet corresponding to the identifier of the response response does not exist in the local table, or an application scenario where the delivery time corresponding to the identifier of the downlink data packet does not exist in the local table. Faced with these two application scenarios, the base station cannot normally obtain the RTT of the RLC layer, and thus cannot obtain the bandwidth and delay product of the network, and cannot adjust the downlink queue buffer space of the RLC layer. Therefore, the base station will stop adjusting the RLC. The operation of the downstream queue buffer space at the current time of the layer.

In one embodiment, after the above step of determining RTT, the method for controlling the network transmission rate provided by the present application further includes: deleting the identifier of the downlink data packet corresponding to the identifier of the response response recorded in the local table and the identifier of the response response Correspondence between the corresponding downlink data packet delivery moments.

This embodiment relates to the processing of the local table after the base station obtains the RTT. In practical applications, in order to reduce resource overhead, the base station uses the data recorded on the local table to find the downlink data packet corresponding to the response identifier. When the corresponding relationship between the identifier and the delivery time of the downlink data packet corresponding to the identifier of the response response is identified, the corresponding relationship can be further deleted to reduce the space occupied by the data, thereby improving the space utilization of the base station memory or database , And correspondingly improve the operating performance of the base station.

In an embodiment, FIG. 5 is a flowchart of a method for controlling network transmission rate provided by an embodiment. This embodiment relates to the specific work of the base station before receiving the status report. As shown in FIG. 5, the work include:

S401: Obtain a downlink data packet to be sent from the downlink queue buffer space at the current moment.

Among them, the downlink data packet to be sent refers to the corresponding data packet when the RLC layer of the base station sends the data packet to the MAC layer. In this embodiment, when the RLC layer sends data packets to the MAC layer at the current moment, it can sequentially obtain the downlink data packets to be sent from the downlink queue buffer space of the RLC layer, and then send the downlink data to be sent to the MAC layer in sequence package.

S402: Send a downlink data packet to be sent, and record a delivery time of the downlink data packet to be sent.

When the RLC layer sends data packets to the MAC layer, the base station can record the time when the downlink data packet is sent in the record table, that is, the time when the downlink data packet is sent, and store the record table recording the sending time in the memory Or in the database for later use.

S403: Store the correspondence between the delivery time of the downlink data packet to be sent and the identifier of the downlink data packet to be sent in a local table.

After the base station records the delivery time of the downlink data packet, it can further obtain the identifier of the downlink data packet, and then make a one-to-one correspondence between the identifier of the downlink data packet and the previously recorded delivery time, and then the corresponding The relationship is recorded in the local table. It should be noted that the recording involved in the above process can be implemented by the base station writing data in the memory or the database, which belongs to the prior art, and there is no need to explain it too much.

In one embodiment, the present application also provides a method for adjusting the current downlink queue buffer space of the RLC layer according to the bandwidth delay product. The method is: determining the bandwidth delay product as the downlink queue buffer space at the next moment .

When the base station obtains the bandwidth delay product at the current moment according to the RTT of the RLC layer and the maximum expected rate value at the current moment, it can further adjust the current downlink queue buffer space according to the bandwidth delay product, and change the adjusted downlink queue The buffer space is used as the downlink queue buffer space at the next moment, so that when the downlink data packet at the next moment reaches the downlink queue buffer space, the transmission rate of the downlink data packet at the next moment can be controlled, even if the network transmission rate can be steadily close The maximum expected rate value.

In summary of all the above embodiments, the present application also provides a method for controlling network transmission rate. The execution subject of this embodiment is a base station. As shown in FIG. 6, the method specifically includes:

S501: Send a downlink data packet of the RLC layer, and record the identifier SN of the downlink data packet and the sending time T_D.

S502: Store the above T_D and SN correspondingly in a local table.

S503: Receive the status report of the RLC layer, and record the receiving time T_P of the status report.

S504. Read the response identifier SN1 in the above status report.

S505: Inquire whether there is an SN associated with SN1 in the above-mentioned local table according to SN1, if it exists, execute S506, and if it does not exist, execute S511.

S506: Determine from the local table whether there is a correspondence between SN and T_D, if it exists, execute S507, and if it does not exist, execute S511.

S507. Determine the difference between T_P and T_D as RTT.

S508. Obtain a maximum expected rate value.

S509. Determine the product of the maximum expected rate value and the RTT as the bandwidth and delay product.

S510. Adjust the current downlink queue buffer space of the RLC layer according to the bandwidth-delay product to obtain the next downlink queue buffer space of the RLC layer, where the next downlink queue buffer space matches the maximum expected rate value.

S511: Stop adjusting the buffer space of the downlink queue at the current moment of the RLC layer.

Combining the application scenario shown in FIG. 1 and the method described in the above embodiment, the network transmission process is briefly described: refer to the schematic diagram of the network transmission process shown in FIG. 6A, in the network transmission process, the base station sends the RLC layer At the same time, the detection and adjustment module detects and records the delivery time of the downlink data packet, and then receives the status report of the RLC layer. The detection and adjustment module detects and records the receiving time of the receiving status report, so that the base station can follow the record The RTT is determined by the difference between the sending time and the receiving time, and then the bandwidth delay product is determined according to the RTT and the maximum expected rate value. The base station then adjusts the RLC layer's downlink queue buffer space according to the bandwidth delay product through the detection and adjustment module to Match the downlink queue buffer space of the RLC layer with the maximum expected rate value, so that the transmission rate value of the network between the base station and the terminal can reach the maximum expected rate value stably, achieving the purpose of stably controlling the network transmission rate.

To sum up, the above embodiments involve the base station controlling the transmission rate of the network, so that the network transmission rate value stably reaches the maximum expected rate value, and the reliability of network transmission is mentioned. At the same time, it overcomes the traditional control network transmission rate. The problem of resource waste caused by the large demand for buffer space, thereby reducing resource overhead and improving the transmission performance of the network where the base station is located.

It should be understood that although the various steps in the flowcharts of FIGS. 2 to 6 are displayed in sequence as indicated by the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless specifically stated in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least part of the steps in Figures 2 to 6 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. These sub-steps or The order of execution of the stages is not necessarily sequential.

In one embodiment, as shown in FIG. 7, a device for controlling network transmission rate is provided, including: an acquisition module 11, a determination module 12, and a control module 13, wherein:

The obtaining module 11 is used to obtain the maximum expected rate value of the network and the RTT of the RLC layer;

The determining module 12 is configured to determine the bandwidth-delay product according to the product of the maximum expected rate value and the RTT;

The control module 13 is configured to adjust the current downlink queue buffer space of the RLC layer according to the bandwidth and delay product to obtain the next downlink queue buffer space of the RLC layer, and the next downlink queue buffer space matches the maximum expected rate value.

In an embodiment, as shown in FIG. 8, the above-mentioned acquiring module 11 includes: a receiving unit 111 and a determining unit 112, wherein:

The receiving unit 111 is configured to receive the status report sent by the terminal and obtain the receiving time of the received status report; wherein the status report is a status report for the issued downlink data packet of the RLC layer;

The determining unit 112 is configured to determine the RTT according to the sending time and the receiving time of the downlink data packet.

In an embodiment, as shown in FIG. 9, the above determining unit 112 includes: an obtaining subunit 1121, a first determining subunit 1122, a second determining subunit 1123, and a determining subunit 1124, wherein:

The obtaining subunit 1121 is used to obtain the response identifier from the status report;

The first judging subunit 1122 is configured to judge whether there is an identifier of the downlink data packet corresponding to the identifier of the response response in the preset local table;

The second judging subunit 1123 is used to determine from the local table whether there is a downlink data packet corresponding to the response response and the time of delivery when the identifier of the downlink data packet corresponding to the identifier of the response response exists in the local table. Correspondence;

The determining subunit 1124 is used to determine in the local table that there is a correspondence between the downlink data packet corresponding to the response response and the sending time, according to the receiving time and the sending of the downlink data packet corresponding to the identifier of the response response At the moment, determine the RTT.

In an embodiment, the above determining subunit 1124 is specifically configured to determine the RTT according to the difference between the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response.

In one embodiment, based on the network transmission rate control device shown in FIG. 7, as shown in FIG. 10, the device further includes:

The deleting module 14 is configured to delete the correspondence between the identifier of the downlink data packet corresponding to the identifier of the response response recorded in the local table and the delivery time of the downlink data packet corresponding to the identifier of the response response.

In one embodiment, based on the network transmission rate control device shown in FIG. 7, as shown in FIG. 11, the device further includes:

The data packet obtaining module 15 is used to obtain the downlink data packet to be sent from the downlink queue buffer space at the current moment;

The sending and recording module 16 is used to send the downlink data packet to be sent and record the delivery time of the downlink data packet to be sent;

The storage module 17 is configured to store the corresponding relationship between the delivery time of the downlink data packet to be sent and the identifier of the downlink data packet to be sent into the local table.

In an embodiment, the aforementioned control module 13 is specifically configured to determine the bandwidth-delay product as the downlink queue buffer space at the next moment.

The foregoing embodiment provides a network transmission rate control device, and its implementation principle and technical effect are similar to those of the foregoing method embodiment, which is not redundant here.

For the specific limitation of the device for controlling the network transmission rate, please refer to the above limitation on a method for controlling the network transmission rate, which will not be repeated here. Each module in the above-mentioned network transmission rate control device can be implemented in whole or in part by software, hardware and a combination thereof. The foregoing modules may be embedded in the form of hardware or independent of the processor in the computer device, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the foregoing modules.

In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. 12. The computer equipment includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide calculation and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used to store message data. The network interface of the computer device is used to communicate with an external terminal through a network connection. The computer program is executed by the processor to realize a method for controlling the network transmission rate.

Those skilled in the art can understand that the structure shown in FIG. 12 is only a block diagram of part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may Including more or fewer parts than shown in the figure, or combining some parts, or having a different arrangement of parts.

In one embodiment, a computer device is provided, including a memory and a processor, and a computer program is stored in the memory, and the processor implements the following steps when executing the computer program:

Obtain the maximum expected rate of the network and the RTT of the RLC layer;

The implementation principle and technical effect of a computer device provided by the foregoing embodiment are similar to those of the foregoing method embodiment, and will not be repeated here.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are further implemented:

Obtain the maximum expected rate of the network and the RTT of the RLC layer;

The foregoing embodiment provides a computer-readable storage medium, and its implementation principle and technical effect are similar to those of the foregoing method embodiment, and will not be repeated here.

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage. In the medium, when the computer program is executed, it may include the procedures of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, they should It is considered as the range described in this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A method for controlling network transmission rate, the method includes the following steps:

Obtain the maximum expected rate of the network and the RTT of the RLC layer;

Determine the bandwidth-delay product according to the product of the maximum expected rate value and the RTT;

Adjust the downlink queue buffer space of the RLC layer at the current moment according to the bandwidth-delay product to obtain the downlink queue buffer space of the RLC layer at the next moment, the downlink queue buffer space at the next moment and the maximum expected rate Value matches.
The method according to claim 1, wherein the step of obtaining the maximum expected rate value of the network and the RTT of the RLC layer comprises:

Receiving the status report sent by the terminal, and obtaining the receiving moment of receiving the status report; wherein, the status report is a status report for the issued RLC layer downlink data packet;

The RTT is determined according to the sending time and the receiving time of the downlink data packet.
The method according to claim 2, wherein the step of determining the RTT according to the sending time and the receiving time of the downlink data packet comprises:

Obtaining the identification of the response response from the status report;

Judging whether there is an identifier of the downlink data packet corresponding to the identifier of the response response in the preset local table;

If yes, determine from the local table whether there is a correspondence between the downlink data packet corresponding to the response response and the time of delivery;

If the corresponding relationship exists, the RTT is determined according to the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response.
The method according to claim 3, wherein the step of determining the RTT according to the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response comprises:

The RTT is determined according to the difference between the receiving time and the sending time of the downlink data packet corresponding to the identifier of the response response.
The method according to claim 3 or 4, characterized in that, after the step of determining the RTT, the method further comprises the following steps:

The correspondence between the identifier of the downlink data packet corresponding to the identifier of the response response recorded in the local table and the delivery time of the downlink data packet corresponding to the identifier of the response response is deleted.
The method according to claim 2, wherein before the step of receiving the status report sent by the terminal, the method further comprises:

Acquiring the downlink data packet to be sent from the downlink queue buffer space at the current moment;

Sending the downlink data packet to be sent and recording the delivery time of the downlink data packet to be sent;

The corresponding relationship between the delivery time of the downlink data packet to be sent and the identifier of the downlink data packet to be sent is stored in a local table.
The method according to claim 1, wherein the step of adjusting the current downlink queue buffer space of the RLC layer according to the bandwidth-delay product to obtain the next downlink queue buffer space of the RLC layer comprises:

The bandwidth delay product is determined as the downlink queue buffer space at the next moment.
A control device for network transmission rate, the device includes:

The acquisition module is used to acquire the maximum expected rate value of the network and the RTT of the RLC layer;

A determining module, configured to determine a bandwidth-delay product according to the product of the maximum expected rate value and the RTT;

The control module is configured to adjust the downlink queue buffer space of the RLC layer at the current moment according to the bandwidth and delay product to obtain the downlink queue buffer space of the RLC layer at the next moment, and the downlink queue buffer space at the next moment is equal to The maximum expected rate value matches.
A computer device comprising a memory and a processor, the memory stores a computer program, and the processor implements the steps of the method in any one of claims 1 to 7 when the computer program is executed.
A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 7.