CN115884258A - Data transmission method, device, equipment and storage medium - Google Patents
Data transmission method, device, equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a data transmission method, a data transmission device, data transmission equipment and a storage medium. The method is applied to a distribution unit, and the data transmission method comprises the following steps: acquiring a target buffer amount and an air interface rate; sending the target buffer amount and the air interface rate to a centralized unit so that the centralized unit determines data packets corresponding to the target amount according to the target buffer amount and the air interface rate; and receiving the data packets corresponding to the target quantity sent by the centralized unit. The embodiment of the invention limits the quantity of the data packets sent to the distribution unit by the central unit by reporting the target buffer amount and the air interface rate of the distribution unit to the central unit by the distribution unit, thereby achieving the purpose of controlling the flow rate of the F1 port, and solving the problems that the F1 port loses packet when the air interface quality is deteriorated, the rate cannot be adjusted in time when the air quality is improved, and the air interface rate fluctuates greatly because the flow rate is not considered in the prior art and the quantity of the data packets sent to the distribution unit by the central unit is calculated only according to the cache of the distribution unit.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a data transmission method, apparatus, device, and storage medium.
Background
In a 5G communication system, a CU (Centralized Unit) -DU (Distributed Unit) separation architecture is adopted, and a BBU (baseband processing Unit) of a Base station is divided into two functional entities, namely a CU functional entity and a DU functional entity. The partitioning of CUs and DU functions distinguishes between handling the real-time nature of the content. The CU device mainly comprises non-real-time radio high-level protocol stack functions, while the DU device mainly handles physical layer functions and layer 2 functions for real-time requirements.
The Service Protocol stack of CU and DU is divided, where the CU has an SDAP (Service Data Adaptation Protocol), a PDCP (Packet Data Convergence Protocol), and a GTPU (GPRS Tunneling Protocol User Plane) of Ng interface, which completes the encapsulation of Packet Data packets and includes an in-band signaling process, and the DU has an RLC (Radio Link Control) and a MAC (Media Access Control) distributed thereon. The user plane between CU and DU uses GTPU protocol as transport channel. The PDCP and the RLC are located in different physical entities, so that data transmission between the PDCP and the RLC and feedback after the data transmission is successful are met by the report of DL DATA DELIVERY STATUS of the F1 port. The GTPU protocol indicates that a DU reporting DDDS (an abbreviation of DL DATA DELIVERY STATUS) can carry information such as the buffer data volume and rate of a DU to control a CU to send data volume to the DU. However, what time the DU reports to the DDDS, how to calculate the data volume of the DU buffer and the rate of the DDDS, the GTPU protocol does not give any description, and different manufacturers have different implementation methods.
Because the flow rate calculations involved in F1 flow control have a significant impact on the air interface, improper calculations can lead to problems (either too much or too little) that cannot be matched to the air interface. Therefore, the current common practice in the industry is to calculate the packet loss of the F1 port only according to the buffer of the DU without considering the flow rate, which may cause packet loss of the F1 port when the air interface quality deteriorates, and may not adjust the rate in time when the air quality becomes good, so that the air interface rate may fluctuate greatly.
Disclosure of Invention
The invention provides a data transmission method, a data transmission device, data transmission equipment and a data transmission storage medium, which are used for solving the problems that in the prior art, the flow rate is not considered, the number of data packets sent to a distribution unit by a central unit is calculated only according to the cache of the distribution unit, so that an F1 port loses packets when the air interface quality is deteriorated, the rate cannot be adjusted in time when the air quality is improved, and the air interface rate fluctuates greatly.
According to an aspect of the present invention, there is provided a data transmission method applied to a distribution unit, the data transmission method including:
acquiring a target buffer amount and an air interface rate;
sending the target buffer amount and the air interface rate to a centralized unit so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and receiving the data packets corresponding to the target quantity sent by the centralized unit.
According to another aspect of the present invention, there is provided a data transmission method applied to a central unit, the data transmission method including:
receiving a target buffer amount and an air interface rate sent by the distribution unit;
determining data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and sending the data packets corresponding to the target number to the distribution unit.
According to another aspect of the present invention, there is provided a data transmission apparatus including:
the acquisition module is used for acquiring a target buffer amount and an air interface rate;
a first sending module, configured to send the target buffer amount and the air interface rate to a central unit, so that the central unit determines, according to the target buffer amount and the air interface rate, data packets corresponding to a target quantity;
and the first receiving module is used for receiving the data packets corresponding to the target quantity sent by the centralized unit.
According to another aspect of the present invention, there is provided a data transmission apparatus including:
the second receiving module is used for receiving the target buffer amount and the air interface rate sent by the distribution unit;
the determining module is used for determining data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and the second sending module is used for sending the data packets corresponding to the target number to the distribution unit.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to enable the at least one processor to perform the data transmission method according to any of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to implement the data transmission method according to any one of the embodiments of the present invention when the computer instructions are executed.
According to the technical scheme of the embodiment of the invention, the target buffer amount and the air interface rate of the distribution unit are reported to the central unit by the distribution unit to limit the number of the data packets sent to the distribution unit by the central unit, so that the purpose of controlling the flow rate of the F1 port is achieved, the problems that the flow rate is not considered in the prior art, the number of the data packets sent to the distribution unit by the central unit is calculated only according to the buffer memory of the distribution unit, the F1 port loses packets when the air interface quality is deteriorated, the rate cannot be adjusted in time when the air quality is improved, and the air interface rate fluctuates greatly are solved, the flow rate of the F1 port can be dynamically adjusted according to the quality condition of the air interface, and the beneficial effects of utilizing the maximum efficiency and matching air interface resources are achieved.
It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 2 is a flowchart of a data transmission method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a data transmission method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a data transmission apparatus according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a data transmission apparatus according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device implementing the data transmission method according to the embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "target," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention, where the embodiment is applicable to a data transmission situation, the method may be performed by a data transmission apparatus, the data transmission apparatus may be implemented in a form of hardware and/or software, and the data transmission apparatus may be integrated in any electronic device that provides a data transmission function. As shown in fig. 1, the method includes:
s101, obtaining a target buffer amount and an air interface rate.
In a 5G communication system, a CU (Centralized Unit) -DU (Distributed Unit) separation architecture is adopted, and a BBU (baseband processing Unit) of a Base station is divided into two functional entities, namely a CU functional entity and a DU functional entity. The feedback after the data transmission between the CU and the DU and the data transmission success is satisfied by the report of DL DATA DELIVERY STATUS of the F1 port. Specifically, a reporting mechanism of DDDS (abbreviated as DL DATA DELIVERY STATUS) in a DU start period reports a data volume bearable of a DU to a CU in real time through the DU, so that the CU sends an appropriate number of data packets to the DU, and the DU buffers the data packets and sends the data packets to a UE (User Equipment) at an appropriate time.
It should be noted that the target buffer amount may be the number of packets that the DU can actually buffer. For example, the DU may actually buffer 80 packets, and the target buffer amount of the DU may be 80.
It should be explained that the air interface rate may be a rate at which the base station sends data to the UE.
Specifically, a DDDS reporting mechanism of the DU start period obtains a target buffer amount of the DDDS and a downlink air interface rate calculated in real time to send data to the UE.
And S102, sending the target buffer amount and the air interface rate to the centralized unit so that the centralized unit determines the data packets corresponding to the target amount according to the target buffer amount and the air interface rate.
It should be noted that the target number may be the number of data packets sent by the CU to the DU. Preferably, the target number may be determined by the CU according to a target buffer amount and an air interface rate sent by the DU, so that after the CU sends the target number of data packets to the DU, a situation that the DU buffer overflows and discards data due to air interface fluctuation is not caused.
Specifically, the DU sends the target buffer amount of the DU and the downlink air interface rate calculated in real time to send data to the UE, so that the CU determines the data packets corresponding to the target amount according to the target buffer amount and the air interface rate.
In the prior art, when a CU sends a data packet to a DU, it is common to calculate and determine the rate of an air interface without considering the rate of the air interface, and only according to a target buffer storage of the DU, which may cause packet loss at an F1 port when the quality of the air interface deteriorates, and may not adjust the rate in time when the quality of the air becomes good, so that the rate of the air interface may fluctuate greatly. The embodiment of the invention considers two factors of the target buffer storage amount and the air interface rate of the DU, dynamically adjusts the flow rate of the F1 interface according to the quality condition of the air interface, achieves the beneficial effects of utilizing the maximum efficiency and matching the air interface resource, and is beneficial to improving the use experience of a user.
And S103, receiving the data packets corresponding to the target quantity sent by the centralized unit.
Specifically, the DU receives packets corresponding to the target number sent by the CU.
According to the technical scheme of the embodiment of the invention, the target buffer amount and the air interface rate of the distribution unit are reported to the central unit by the distribution unit to limit the number of the data packets sent to the distribution unit by the central unit, so that the purpose of controlling the flow rate of the F1 port is achieved, the problems that the flow rate is not considered in the prior art, the number of the data packets sent to the distribution unit by the central unit is calculated only according to the buffer memory of the distribution unit, the F1 port loses packets when the air interface quality is deteriorated, the rate cannot be adjusted in time when the air quality is improved, and the air interface rate fluctuates greatly are solved, the flow rate of the F1 port can be dynamically adjusted according to the quality condition of the air interface, and the beneficial effects of utilizing the maximum efficiency and matching air interface resources are achieved.
Optionally, the obtaining of the target buffer amount and the air interface rate includes:
and acquiring the total buffer amount and the used buffer amount.
The total buffer amount may be the number of packets that the DU can buffer in total. For example, a total of 100 data packets can be buffered in a DU, and the total buffer amount of the DU may be 100. The used buffer amount may be the amount of packets that the DU has buffered. Illustratively, the DU has buffered 20 packets, and the used buffer amount of the DU may be 20.
Specifically, a total buffer amount of the DU and a used buffer amount of the DU are obtained.
And determining the residual buffer amount according to the total buffer amount and the used buffer amount.
The remaining buffer amount may be the number of remaining DUs that can also buffer packets. For example, the DU may buffer 100 packets altogether, and the remaining buffer amount of the DU may be 80 if 20 packets have been buffered.
Specifically, the used buffer amount of the DU is subtracted from the total buffer amount of the DU to obtain the remaining buffer amount of the DU.
And determining the residual buffer amount as a target buffer amount.
Specifically, the remaining buffer amount of the DU is determined as the target buffer amount of the DU.
And acquiring a target data volume and a target time.
It should be noted that the target data volume may be all data volumes successfully sent over the air interface in the reporting period of the DU.
The target time may be the sum of time intervals between the buffer of all DUs in the reporting period that there is a data packet in the buffer of the bearer and the buffer of the bearer is empty.
Specifically, the DU obtains all data volumes successfully sent over the air interface in the reporting period, and obtains the sum of time intervals between the buffered data packets of the bearer of all DUs in the reporting period and the buffered data packets of the bearer being empty.
And determining the air interface rate according to the target data volume and the target time.
Specifically, the specific way of determining the air interface rate according to the target data volume and the target time may be: target amount of data/target time = air interface rate.
Optionally, obtaining the target time includes:
and acquiring the number of the received data packets in the target period.
In this embodiment, the target period may be a period in which the DU reports the target buffer amount and the air interface rate to the CU through the DDDS of the F1 interface, and the specific value of the target period is not limited in this embodiment. Preferably, the target period may be 5 milliseconds.
Specifically, the DU counts the number of packets sent by the CU received within the target period.
And acquiring the corresponding start time and end time of each data packet.
It should be explained that the start time may be a time when the data packet is cached in the bearer of the DU in the target period, and the end time may be a time when the cache of the bearer of the DU in the target period is empty.
Specifically, the start time and the end time corresponding to each data packet are obtained from the time when the first packet data is buffered in the local bearer of the DU to the time when the buffer of the local bearer is empty.
And determining the time interval corresponding to each data packet according to the starting time and the ending time corresponding to each data packet.
The time interval may be a time interval between the buffer of the bearer of the DU in the target period having the data packet and the buffer of the bearer being empty.
Specifically, the ending time corresponding to each data packet is subtracted by the starting time corresponding to each data packet to obtain the time interval corresponding to each data packet.
And determining the target time according to the number of the data packets and the time interval corresponding to each data packet.
Specifically, the time intervals corresponding to all the data packets in the target period are added to obtain the target time.
Optionally, obtaining the target data volume includes:
and sending the data packet to the user equipment and receiving a feedback result of the user equipment.
It should be explained that, in this embodiment, the feedback result may be a HARQ (Hybrid Automatic Repeat request) result fed back by the ue.
Specifically, the DU sends data to the UE through the air interface in the target period, after the data is sent out through the air interface, the UE sends a feedback HARQ result to the DU, and the DU receives the feedback result of the UE.
And determining the target data volume according to the feedback result.
Specifically, the DU counts all data volumes successfully sent to the UE through the air interface in the target period, and determines the data volume with the feedback result being successful as the target data volume by the DU, including the statistics of retransmission.
According to the technical scheme of the embodiment of the invention, the target buffer storage amount is obtained, the target data volume and the target time are obtained, the empty rate is determined according to the target data volume and the target time, and the target buffer storage amount and the empty rate are sent to the centralized unit, so that the centralized unit determines the data packets corresponding to the target quantity according to the target buffer storage amount and the empty rate, the problems that the flow rate is not considered in the prior art, the quantity of the data packets sent to the distributed unit by the centralized unit is calculated only according to the cache of the distributed unit, the F1 port loses packets when the empty quality is deteriorated, the rate cannot be timely adjusted when the empty quality is improved, and the empty rate fluctuates greatly are solved, the flow rate of the F1 port can be dynamically adjusted according to the quality condition of the empty port, and the beneficial effects of utilizing the maximum efficiency and matching the empty resource are achieved.
Example two
Fig. 2 is a flowchart of a data transmission method according to a second embodiment of the present invention, where this embodiment is applicable to a data transmission situation, and the method may be executed by a data transmission apparatus, where the data transmission apparatus may be implemented in a form of hardware and/or software, and the data transmission apparatus may be integrated in any electronic device that provides a data transmission function. As shown in fig. 2, the method includes:
s201, receiving the target buffer amount and the air interface rate sent by the distribution unit.
Specifically, the CU receives the target buffer amount and the air interface rate sent by the DU.
S202, determining data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate.
Specifically, the CU determines the data packets corresponding to the target number according to the sum of the target buffer amount and the air interface rate.
And S203, sending the data packets corresponding to the target number to a distribution unit.
Specifically, the CU sends the packets corresponding to the target number to the CU, and the packets exceeding the target number are not sent again until the target number is updated in the next target period.
According to the technical scheme of the embodiment of the invention, the quantity of the data packets sent to the distribution unit by the central unit is determined by the central unit through the target buffer amount and the air interface rate of the distribution unit, which are reported by the central unit receiving the distribution unit, so that the purpose of controlling the flow rate of the F1 port is achieved, the problems that the flow rate is not considered in the prior art, the quantity of the data packets sent to the distribution unit by the central unit is calculated only according to the buffer memory of the distribution unit, the F1 port loses packet when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air quality is improved, and the air interface rate fluctuates greatly are solved, the flow rate of the F1 port can be dynamically adjusted according to the quality condition of the air interface, and the beneficial effects of utilizing the maximum efficiency and matching air interface resources are achieved.
Optionally, determining the data packets corresponding to the target number according to the target buffer amount and the air interface rate includes:
and acquiring a target period.
Specifically, the CU may learn to obtain the target period according to two consecutive reporting period intervals of the DU.
And determining the target quantity according to the target buffer amount, the air interface rate and the target period.
Specifically, the specific manner of determining the target number according to the target buffer amount, the air interface rate, and the target period may be: target buffer amount + air rate × target period = target number.
And acquiring data packets corresponding to the target quantity according to the target data quantity.
Specifically, the CU obtains the data packets corresponding to the target number according to the target data amount, and sends the data packets corresponding to the target number to the DU.
According to the technical scheme of the embodiment of the invention, the target period is obtained by receiving the target buffer amount and the air interface rate sent by the distribution unit, the target quantity is determined according to the target buffer amount, the air interface rate and the target period, the data packets corresponding to the target quantity are obtained according to the target data quantity, and the data packets corresponding to the target quantity are sent to the distribution unit, so that the problems that the flow rate is not considered in the prior art, the quantity of the data packets sent to the distribution unit by the centralized unit is calculated only according to the cache of the distribution unit, the packet loss of the F1 port is caused when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air quality is improved, and the fluctuation of the air interface rate is large are solved.
EXAMPLE III
Fig. 3 is a flowchart of a data transmission method according to a third embodiment of the present invention, and this embodiment provides a preferred example of data transmission between a CU and a DU on the basis of the foregoing embodiments. As shown in fig. 3, the data transmission method may include the steps of:
s301, DU acquires the target buffer storage amount.
In the implementation process, the reporting period of the DDDS is preset on the DU to be 5 milliseconds, the base station is started, and the cell is successfully established. The UE initiates a service establishment process, and triggers the base station side CU and the DU side to establish a DRB (Data Radio Bearer) Bearer. And after the DRB is successfully established, the RLC module of the DU sends a DDDS message to the CU to trigger the CU to send data.
Specifically, a DDDS reporting mechanism of the DU startup period obtains a total buffer amount and a used buffer amount of the DDDS, determines a remaining buffer amount according to the total buffer amount and the used buffer amount, and determines the remaining buffer amount as a target buffer amount.
S302, the DU acquires the target data volume and the target time.
In the implementation process, the RLC module of the DU counts the values of the target time ThpTimeDL and the target data volume ThpVolDl in real time according to an algorithm.
Specifically, the DU sends data to the UE through the air interface in the target period, after the data is sent out through the air interface, the UE sends a feedback HARQ result to the DU, and the DU determines the data volume with the feedback result as successful data volume as the target data volume. Illustratively, the target data amount may be expressed in ThpVolDl.
The first packet data buffered in the local bearer of the DU is the starting time T1-1, and the time from the buffer empty of the local bearer is the ending time T1-2; when the next opportunity comes, the data is started to be the starting time T2-1, and when the buffer memory of the next load is empty, the data is the ending time T2-2; by analogy, the beginning of the nth machine has data as the starting time Tn-1, and the end of the nth machine has the buffer empty as the ending time Tn-2. Determining the time interval corresponding to each data packet according to the starting time and the ending time of each data packet: the interval ThpTimeDL1 for the first packet is equal to T1-2 minus T1-1, the interval ThpTimeDL2 for the second packet is equal to T2-2 minus T2-1, and so on, the interval ThpTimeDLn for the nth packet is equal to Tn-2 minus Tn-1. Adding the time intervals corresponding to all the data packets in the target period to obtain the target time, namely the target time ThpTi medL = ThpTimeDL1+ ThpTimeDL2+ … … + ThpTimeDLn.
S303, determining the air interface rate according to the target data volume and the target time by the DU.
Specifically, the air interface rate may be defined as DL IP Throughput, and the calculation formula may be the air interface rate DL IP Throughput = target data volume ThpVolDl/target time ThpTimeDL (unit is kbits/s, unit conversion is not described in detail).
In the implementation process, the RLC module of the DU counts the values of the target time ThpTime DL and the target data volume ThpVolDl in real time according to an algorithm. When the target period of 5 milliseconds arrives, the RLC module of the DU calculates the air interface rate DL IP Throughput.
In the implementation process, the air interface rate DL IP Throughput may represent the actual quality of the air interface. If the quality of the air interface is poor, the HARQ result fed back by the UE fails more, and the DL IP Throughput rate is low.
And S304, the DU sends the target buffer amount and the air interface rate to the CU.
Specifically, the target buffer size of the DU is carried by the Desired buffer size for the Data radio bearer in the DDDS packet, and the air interface Rate is carried by the Desired Data Rate in the DDDS packet, where the Desired Data Rate may be set as the system bandwidth/current user number.
S305, the CU receives the target buffer amount and the air interface rate sent by the DU.
Specifically, the CU receives the target buffer amount and the air interface rate sent by the DU.
S306, the CU acquires a target period.
Specifically, after receiving the DDDS, the PDCP module of the CU may calculate a target period of the DDDS to be 5 milliseconds according to an interval between two consecutive reporting periods of the DU.
And S307, the CU determines the target quantity according to the target buffer amount, the air interface rate and the target period.
Specifically, after receiving the DDDS, the CU calculates a target amount AvailDataVolume that can be sent downstream to the DU according to an empty Rate carried by the Desired Data Rate, that is, a target buffer amount and a target period carried by the DL IP Throughput, the Desired buffer size for the Data radio bearer. The calculation method of the target quantity AvailDataVolume may be: the target quantity AvailDataVolume = target buffer amount + air rate DL IP Throughput × target period.
S308, the CU sends the data packets corresponding to the target number to the DU.
Specifically, when the CU sends data to the DU, it determines, according to the target amount AvailDataVolume, that data exceeding the target amount AvailDataVolume cannot be sent any more. If the target number AvailDataVolume is 0, the data transmission is stopped until the target number AvailDataVolume is updated for the next target period.
According to the technical scheme of the embodiment of the invention, the real-time rate condition of the air interface is fed back to the CU, and the CU can make adjustment in time according to the quality condition of the air interface when sending data to the DU, so that the condition that the DU cache overflows and the data is discarded due to fluctuation of the air interface is well avoided, and the service experience of a user is improved.
Example four
Fig. 4 is a schematic structural diagram of a data transmission apparatus according to a fourth embodiment of the present invention. As shown in fig. 4, the apparatus includes: an obtaining module 401, a first sending module 402 and a first receiving module 403.
The acquiring module 401 is configured to acquire a target buffer amount and an air interface rate;
a first sending module 402, configured to send the target buffer amount and the air interface rate to a central unit, so that the central unit determines, according to the target buffer amount and the air interface rate, data packets corresponding to a target quantity;
a first receiving module 403, configured to receive the data packets corresponding to the target quantity sent by the central unit.
Optionally, the obtaining module 401 includes:
a first acquiring unit configured to acquire a total buffer amount and an used buffer amount;
a first determining unit, configured to determine a remaining buffer amount according to the total buffer amount and the used buffer amount;
a second determining unit configured to determine the remaining buffer amount as a target buffer amount;
a second acquisition unit configured to acquire a target data amount and a target time;
a third determining unit, configured to determine an air interface rate according to the target data amount and the target time.
Optionally, the second obtaining unit includes:
the first acquiring subunit is used for acquiring the number of the data packets received in the target period;
the second acquiring subunit is used for acquiring the start time and the end time corresponding to each data packet;
a first determining subunit, configured to determine a time interval corresponding to each data packet according to the start time and the end time corresponding to each data packet;
and the second determining subunit is used for determining the target time according to the number of the data packets and the time interval corresponding to each data packet.
Optionally, the second obtaining unit includes:
the sending subunit is used for sending the data packet to user equipment and receiving a feedback result of the user equipment;
and the third determining subunit is used for determining the target data volume according to the feedback result.
The data transmission device provided by the embodiment of the invention can execute the data transmission method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a data transmission apparatus according to a fourth embodiment of the present invention. As shown in fig. 5, the apparatus includes: a second receiving module 501, a determining module 502 and a second sending module 503.
The second receiving module 501 is configured to receive the target buffer amount and the air interface rate sent by the distribution unit;
a determining module 502, configured to determine, according to the target buffer amount and the air interface rate, data packets corresponding to a target number;
a second sending module 503, configured to send the data packets corresponding to the target number to the distribution unit.
Optionally, the determining module 502 includes:
a third obtaining subunit, configured to obtain a target period;
a fourth determining subunit, configured to determine a target quantity according to the target buffer size, the air interface rate, and the target period;
and the fourth obtaining subunit is used for obtaining the data packets corresponding to the target quantity according to the target data quantity.
The data transmission device provided by the embodiment of the invention can execute the data transmission method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE six
FIG. 6 illustrates a schematic diagram of an electronic device 60 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 6, the electronic device 60 includes at least one processor 61, and a memory communicatively connected to the at least one processor 61, such as a Read Only Memory (ROM) 62, a Random Access Memory (RAM) 63, and the like, wherein the memory stores computer programs executable by the at least one processor, and the processor 61 may perform various suitable actions and processes according to the computer programs stored in the Read Only Memory (ROM) 62 or the computer programs loaded from the storage unit 68 into the Random Access Memory (RAM) 63. In the RAM 63, various programs and data necessary for the operation of the electronic apparatus 60 can also be stored. The processor 61, the ROM 62, and the RAM 63 are connected to each other via a bus 64. An input/output (I/O) interface 65 is also connected to bus 64.
A number of components in the electronic device 60 are connected to the I/O interface 65, including: an input unit 66 such as a keyboard, a mouse, or the like; an output unit 67 such as various types of displays, speakers, and the like; a storage unit 68 such as a magnetic disk, optical disk, or the like; and a communication unit 69 such as a network card, modem, wireless communication transceiver, etc. The communication unit 69 allows the electronic device 60 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
acquiring a target buffer amount and an air interface rate;
sending the target buffer amount and the air interface rate to a centralized unit so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and receiving the data packets corresponding to the target quantity sent by the centralized unit.
For example, data transmission methods:
receiving a target buffer amount and an air interface rate sent by the distribution unit;
determining data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and sending the data packets corresponding to the target number to the distribution unit.
In some embodiments, the data transfer method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 68. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 60 via the ROM 62 and/or the communication unit 69. When the computer program is loaded into the RAM 63 and executed by the processor 61, one or more steps of the data transmission method described above may be performed. Alternatively, in other embodiments, the processor 61 may be configured to perform the data transfer method by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired result of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A data transmission method, applied to a distribution unit, the data transmission method comprising:
acquiring a target buffer amount and an air interface rate;
sending the target buffer amount and the air interface rate to a centralized unit so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and receiving the data packets corresponding to the target quantity sent by the centralized unit.
2. The method of claim 1, wherein obtaining a target buffer amount and an air interface rate comprises:
acquiring a total buffer storage amount and a used buffer storage amount;
determining a remaining buffer amount according to the total buffer amount and the used buffer amount;
determining the residual buffer amount as a target buffer amount;
acquiring a target data volume and a target time;
and determining the air interface rate according to the target data volume and the target time.
3. The method of claim 2, wherein obtaining a target time comprises:
acquiring the number of received data packets in a target period;
acquiring the corresponding start time and end time of each data packet;
determining a time interval corresponding to each data packet according to the starting time and the ending time corresponding to each data packet;
and determining target time according to the number of the data packets and the time interval corresponding to each data packet.
4. The method of claim 3, wherein obtaining a target amount of data comprises:
sending the data packet to user equipment, and receiving a feedback result of the user equipment;
and determining the target data volume according to the feedback result.
5. A data transmission method, applied to a central unit, the data transmission method comprising:
receiving a target buffer amount and an air interface rate sent by the distribution unit;
determining data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and sending the data packets corresponding to the target number to the distribution unit.
6. The method of claim 5, wherein determining the number of packets corresponding to the target number according to the target buffer amount and the air interface rate comprises:
acquiring a target period;
determining a target quantity according to the target buffer amount, the air interface rate and the target period;
and acquiring data packets corresponding to the target quantity according to the target data quantity.
7. A data transmission apparatus, characterized in that the data transmission apparatus comprises:
the acquisition module is used for acquiring a target buffer amount and an air interface rate;
a first sending module, configured to send the target buffer amount and the air interface rate to a central unit, so that the central unit determines, according to the target buffer amount and the air interface rate, data packets corresponding to a target quantity;
and the first receiving module is used for receiving the data packets corresponding to the target quantity sent by the centralized unit.
8. A data transmission apparatus, characterized in that the data transmission apparatus comprises:
the second receiving module is used for receiving the target buffer amount and the air interface rate sent by the distribution unit;
the determining module is used for determining data packets corresponding to the target quantity according to the target buffer amount and the air interface rate;
and the second sending module is used for sending the data packets corresponding to the target quantity to the distribution unit.
9. An electronic device, characterized in that the electronic device comprises:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the data transmission method of any one of claims 1-4 or claims 5-6.
10. A computer-readable storage medium, having stored thereon computer instructions for causing a processor, when executed, to implement the data transmission method of any one of claims 1-4 or claims 5-6.
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