WO2020207044A1 - Procédé, appareil, dispositif d'ordinateur et support d'informations de commande de débit de transmission de réseau - Google Patents

Procédé, appareil, dispositif d'ordinateur et support d'informations de commande de débit de transmission de réseau Download PDF

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Publication number
WO2020207044A1
WO2020207044A1 PCT/CN2019/124700 CN2019124700W WO2020207044A1 WO 2020207044 A1 WO2020207044 A1 WO 2020207044A1 CN 2019124700 W CN2019124700 W CN 2019124700W WO 2020207044 A1 WO2020207044 A1 WO 2020207044A1
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Prior art keywords
data packet
rlc layer
buffer space
downlink data
rtt
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PCT/CN2019/124700
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English (en)
Chinese (zh)
Inventor
郑自永
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京信通信系统（中国）有限公司
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Publication of WO2020207044A1 publication Critical patent/WO2020207044A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

Definitions

  • 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.
  • the wireless interface protocol Long Term Evolution, LTE
  • the data transmission rate can be controlled through the radio link control layer (Radio Link Control, RLC).
  • RLC Radio Link Control
  • the RLC layer 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.
  • the RLC layer 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.
  • an embodiment of the present application provides a method for controlling a network transmission rate, and the method includes:
  • the next downlink queue buffer space matches the maximum expected rate value.
  • 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.
  • 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.
  • an embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored.
  • 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 obtained 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.
  • 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.
  • 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.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment
  • FIG. 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
  • FIG. 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.
  • FIG. 12 is a schematic diagram of the internal structure of a computer according to an embodiment.
  • 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.
  • the base station is used to send downlink messages to the terminal
  • 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.
  • the physical layer Physical Layer, PHY
  • the Media Access Control layer Media Access Control, MAC
  • the Radio Link Control layer Radio Link Control, RLC
  • the packet data convergence protocol layer Packet Data Convergence Protocol, PDCP
  • GPRS Tunneling Protocol GPRS Tunneling Protocol, GTP
  • base stations and terminals can implement message transmission and communication based on the network protocol architecture.
  • 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.
  • the execution body of the method for controlling network transmission rate 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:
  • 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 represents the round-trip time of communication between the base station and the terminal in network transmission.
  • 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.
  • 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.
  • 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.
  • the base station 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.
  • 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.
  • 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.
  • the base station 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
  • the network transmission rate at the next moment can match the adjusted downlink queue buffer space.
  • 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.
  • 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.
  • the downlink queue buffer space of the RLC layer 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.
  • 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.
  • the status report is used to describe whether the terminal successfully receives the message sent by the base station.
  • 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.
  • the base station delivers the downlink data packet of the RLC layer to the terminal.
  • 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.
  • the base station 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.
  • 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
  • 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.
  • 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:
  • 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.
  • 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.
  • the base station when it 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.
  • 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.
  • 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 .
  • 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.
  • 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.
  • 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.
  • 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.
  • the base station uses the data recorded on the local table to find the downlink data packet corresponding to the response identifier.
  • 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.
  • 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:
  • 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.
  • the RLC layer 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.
  • 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.
  • the base station 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.
  • 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 .
  • the base station 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.
  • 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.
  • S503 Receive the status report of the RLC layer, and record the receiving time T_P of the 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.
  • S509. Determine the product of the maximum expected rate value and the RTT as the bandwidth and delay product.
  • S511 Stop adjusting the buffer space of the downlink queue at the current moment of the RLC layer.
  • 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.
  • 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.
  • a device for controlling network transmission rate 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the device further includes:
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • a computer device 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:
  • the next downlink queue buffer space matches the maximum expected rate value.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the following steps are further implemented:
  • the next downlink queue buffer space matches the maximum expected rate value.
  • 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.
  • 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.

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Abstract

L'invention concerne un procédé de commande de débit de transmission de réseau, ainsi qu'un appareil, un dispositif d'ordinateur et un support d'informations. En acquérant une valeur de débit attendu maximal d'un réseau et un temps aller-retour (RTT) d'une couche de contrôle de liaison radio (RLC), le procédé obtient en outre le produit de la valeur de débit attendu maximal et du RTT pour déterminer un produit de retard de largeur de bande, et ajuste un espace tampon de file d'attente de liaison descendante au moment actuel de la couche RLC selon le produit de retard de largeur de bande, pour obtenir l'espace tampon de file d'attente de liaison descendante au moment suivant de la couche RLC, l'espace tampon de file d'attente de liaison descendante étant mis en correspondance avec la valeur de débit attendu maximal. Selon le procédé, l'espace tampon de file d'attente de liaison descendante ajusté de la couche RLC est toujours mis en correspondance avec la valeur de débit attendu maximal du réseau, par conséquent, le débit de transmission de données sur la couche RLC peut être efficacement commandé lorsque l'espace tampon de file d'attente de liaison descendante de la couche RLC est utilisé pour mémoriser des données, de telle sorte que le débit de transmission du réseau où une station de base est située peut être efficacement commandé, le débit de transmission du réseau peut être stabilisé à la valeur de débit attendu maximal, et la fiabilité de transmission de réseau est considérablement améliorée.
PCT/CN2019/124700 2019-04-08 2019-12-11 Procédé, appareil, dispositif d'ordinateur et support d'informations de commande de débit de transmission de réseau WO2020207044A1 (fr)

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