CN115884258B - 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 the distribution unit, and the data transmission method comprises the following steps: acquiring a target buffer quantity and an air interface rate; transmitting the target buffer quantity 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 quantity and the air interface rate; and receiving the data packets corresponding to the target quantity sent by the centralized unit. According to the embodiment of the invention, the quantity of data packets sent by the centralized unit to the distributed unit is limited by reporting the target buffer quantity and the air interface rate of the distributed unit to the centralized unit, so that the purpose of controlling the flow rate of the F1 interface is achieved, and the problems that the F1 interface loses packets when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air interface quality is good, and the air interface rate can fluctuate relatively greatly because the flow rate is not considered and the quantity of the data packets sent by the centralized unit to the distributed unit is calculated only according to the buffer memory of the distributed unit in the prior art are solved.
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 (Building Base band Unit, baseband processing Unit) of a base station is divided into two functional entities, namely, a CU functional entity and a DU functional entity. CU is distinguished from the slicing of DU functions to handle real-time nature of the content. CU devices mainly include non-real-time wireless higher layer protocol stack functions, while DU devices mainly handle physical layer functions and layer 2 functions for real-time requirements.
The service protocol stack of the CU and the DU is divided, the CU has an SDAP (Service Data Adaptation Protocol ) and a PDCP (Packet Data Convergence Protocol, packet data convergence protocol) and a GTPU (GPRS Tunneling Protocol User Plane ) of Ng port, encapsulation of the packet data packet is completed, and in-band signaling process is included, and the DU has RLC (Radio Link Control ) and MAC (Media Access Control, media access control) distributed thereon. The user plane between the CU and the DU uses the GTPU protocol as a transmission channel. The PDCP and RLC are located in different physical entities, and then the PDCP and RLC data transmission and feedback after successful data transmission are satisfied by the DL DATA DELIVERY STATUS report of the F1 port. The GTPU protocol illustrates that the DDDS (abbreviated as DL DATA DELIVERY STATUS) reported by the DU may carry information such as the buffered data amount and rate of the DU, so as to control the CU to send the data amount to the DU. However, when the DDDS is reported by the DU, how to calculate the data amount buffered by the DU and the rate of the DDDS is not described by the GTPU protocol, and different manufacturers have different implementation methods.
Because the flow rate calculations involved in F1 flow control have a large 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 according to the buffer of the DU without considering the flow rate, so that the F1 port can lose packets when the air interface quality is deteriorated, and the rate cannot be adjusted in time when the air interface quality is improved, so that the air interface rate can fluctuate more.
Disclosure of Invention
The invention provides a data transmission method, a device, equipment and a storage medium, which are used for solving the problems that the quantity of data packets sent by a centralized unit to a distribution unit is calculated only according to the cache of the distribution unit without considering the flow rate in the prior art, the F1 port can lose the packets when the air interface quality is deteriorated, the speed can not be adjusted in time when the air interface quality is improved, and the air interface speed can fluctuate relatively more.
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 quantity and an air interface rate;
the target buffer quantity and the air interface rate are sent to a centralized unit, so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer quantity 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 centralized unit, the data transmission method including:
receiving a target buffer quantity and an air interface rate sent by the distribution unit;
determining data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
and sending the data packets corresponding to the target quantity 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 the target buffer quantity and the air interface rate;
the first sending module is used for sending the target buffer quantity and the air interface rate to a centralized unit so that the centralized unit can determine data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
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 quantity 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 quantity 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 to enable the at least one processor to perform the data transmission method according to any one 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 execute a data transmission method according to any one of the embodiments of the present invention.
According to the technical scheme, the quantity of data packets sent by the centralized unit to the distributed unit is limited by reporting the target buffer quantity and the air interface rate of the distributed unit to the centralized unit, so that the purpose of controlling the flow rate of the F1 interface is achieved, the problems that the F1 interface can lose packets when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air interface quality is good, and the fluctuation of the air interface rate is relatively large are solved, the flow rate of the F1 interface can be dynamically adjusted according to the quality condition of the air interface, and the maximum efficiency utilization and the beneficial effects of matching air interface resources are achieved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a data transmission method according to a first 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 device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a data transmission device according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device implementing a data transmission method according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the 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 figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise 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 1
Fig. 1 is a flowchart of a data transmission method according to a first embodiment of the present invention, where the method may be applied to a data transmission case, and the method may be performed by a data transmission device, where the data transmission device may be implemented in hardware and/or software, and the data transmission device may be integrated in any electronic device that provides a data transmission function. As shown in fig. 1, the method includes:
s101, acquiring target buffer quantity and air interface rate.
In a 5G communication system, a CU (Centralized Unit) -DU (Distributed Unit) separation architecture is adopted, and a BBU (Building Base band Unit, baseband processing Unit) of a base station is divided into two functional entities, namely, a CU functional entity and a DU functional entity. The data transmission between the CU and the DU and the feedback after the data transmission is successful are met through the DL DATA DELIVERY STATUS report of the F1 port. Specifically, the DDDS (abbreviated as DL DATA DELIVERY STATUS) reporting mechanism of the DU start period reports the situation of the loadable data amount of the DU to the CU in real time through the DU, so that the CU sends a suitable number of data packets to the DU, and the DU buffers the data packets and sends the data packets to the UE (User Equipment) at a suitable time.
It should be noted that the target buffer size may be the number of packets that the DU is actually able to buffer. Illustratively, the DU may actually buffer 80 packets, and the target buffer size of the DU may be 80.
It should be explained that the air interface rate may be a rate at which the base station transmits data to the UE.
Specifically, the DDDS reporting mechanism of the DU start period acquires its own target buffer amount and a real-time calculated downlink air interface rate for transmitting data to the UE.
S102, the target buffer quantity and the air interface rate are sent to the centralized unit, so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate.
The target number may be the number of packets that the CU transmits to the DU. Preferably, the target number may be determined by the CU according to the target buffer amount and the air interface rate sent by the DU, so that after the CU sends the data packet of the target number to the DU, the situation that the data is discarded due to overflow of the DU buffer caused by air interface fluctuation is not caused.
Specifically, the DU sends the own target buffer amount and the downlink air interface rate calculated in real time for sending data to the UE to the CU, so that the CU determines, according to the target buffer amount and the air interface rate, a data packet corresponding to the target number.
In the prior art, when a CU transmits a data packet to a DU, it is common practice to calculate and determine the data packet according to a target buffer amount of the DU without considering the air interface rate, so that the F1 interface may lose the data packet when the air interface quality is deteriorated, and the rate cannot be adjusted in time when the air interface quality is improved, so that the air interface rate may fluctuate relatively more. The embodiment of the invention considers two factors of the target buffer quantity 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 maximum efficiency utilization and matching of the air interface resources, and is beneficial to improving the use experience of users.
S103, receiving data packets corresponding to the target quantity sent by the centralized unit.
Specifically, the DU receives a data packet corresponding to the target number sent by the CU.
According to the technical scheme, the quantity of data packets sent by the centralized unit to the distributed unit is limited by reporting the target buffer quantity and the air interface rate of the distributed unit to the centralized unit, so that the purpose of controlling the flow rate of the F1 interface is achieved, the problems that the F1 interface can lose packets when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air interface quality is good, and the fluctuation of the air interface rate is relatively large are solved, the flow rate of the F1 interface can be dynamically adjusted according to the quality condition of the air interface, and the maximum efficiency utilization and the beneficial effects of matching air interface resources are achieved.
Optionally, acquiring the target buffer amount and the air interface rate includes:
the total amount of cache and the amount of used cache are obtained.
The total amount of buffering may be the number of packets that the DU is generally able to buffer. Illustratively, a DU may cache a total of 100 data packets, then the total amount of buffering of DUs may be 100. The amount of used buffering may be the number of packets that the DU has buffered. Illustratively, the DU has already buffered 20 packets, then the used buffer size of the DU may be 20.
Specifically, the total buffer size of the DU and the used buffer size of the DU are acquired.
The remaining amount of buffering is determined based on the total amount of buffering and the amount of buffering that has been used.
The remaining amount of buffering may be the number of data packets remaining in the DU that can also be buffered. Illustratively, a DU may cache a total of 100 data packets, and 20 data packets have been cached, then the remaining amount of buffering of the DU may be 80.
Specifically, subtracting the used buffer size of the DU from the total buffer size of the DU yields the remaining buffer size of the DU.
The remaining amount of cache is determined as the target amount of cache.
Specifically, the remaining buffer amount of the DU is determined as the target buffer amount of the DU.
The target data amount and the target time are acquired.
It should be noted that the target data size may be all data sizes successfully transmitted on the air interface in the present reporting period.
The target time may be the sum of the time from the time when the buffer of the own bearer of all DUs in the present reporting period has the data packet to the time when the buffer of the own bearer is empty.
Specifically, the DU acquires all data amounts successfully transmitted on the air interface in the present reporting period, and acquires the sum of the time intervals from the time when the data packet is cached in the present bearer to the time when the cache in the present bearer is empty.
And determining the air interface rate according to the target data volume and the target time.
Specifically, the specific manner of determining the air interface rate according to the target data amount and the target time may be: target data amount/target time = air interface rate.
Optionally, obtaining the target time includes:
the number of data packets received in the target period is obtained.
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 port, and the specific numerical 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 received in the target period and sent by the CU.
And acquiring the starting time and the ending time corresponding to each data packet.
It should be explained that the start time may be a time when the data packet is buffered in the own bearer of the DU in the own target period, and the end time may be a time when the buffer of the own bearer of the DU in the own target period is empty.
Specifically, from the fact that the buffer of the own bearer of the DU has first packet data as a start time and the buffer of the own bearer is empty as an end time, the start time and the end time corresponding to each data packet are obtained.
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 when the buffer of the own bearer of the DU in the own target period has a data packet and when the buffer of the own bearer is empty.
Specifically, subtracting the start time corresponding to each data packet from the end 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, acquiring 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 user equipment.
Specifically, the DU sends data to the UE through the air interface in the target period, and after the data is sent out from 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 quantity according to the feedback result.
Specifically, statistics is carried out on all data amounts successfully transmitted to the UE through the air interface in a target period, retransmission is not carried out, and the data amount with a successful feedback result is determined as a target data amount by the DU.
According to the technical scheme, the target data quantity and the target time are obtained through obtaining the target buffer quantity, the air interface rate is determined according to the target data quantity and the target time, and the target buffer quantity and the air interface rate are sent to the centralized unit, so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate, the problems that the quantity of the data packets sent by the centralized unit to the distributed unit is calculated according to the buffer of the distributed unit without considering the flow rate, the F1 port loses the packet when the air interface quality is deteriorated, the rate cannot be timely adjusted when the air interface quality is good, and the air interface rate can fluctuate relatively much are solved, and the flow rate of the F1 port can be dynamically adjusted according to the quality condition of the air interface, so that the maximum efficiency utilization and the beneficial effects of matching the air interface resources are achieved.
Example two
Fig. 2 is a flowchart of a data transmission method according to a second embodiment of the present invention, where the method may be applied to a data transmission case, and the method may be performed by a data transmission device, where the data transmission device may be implemented in hardware and/or software, and the data transmission device may be integrated in any electronic device that provides a data transmission function. As shown in fig. 2, the method includes:
s201, receiving target buffer quantity and air interface rate sent by a distribution unit.
Specifically, the CU receives the target buffer size and the air interface rate transmitted 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 packet corresponding to the target number according to the sum of the target buffer quantity and the air interface rate.
S203, sending the data packets corresponding to the target quantity to a distribution unit.
Specifically, the CU sends the data packets corresponding to the target number to the CU, and the data packets exceeding the target number are not sent any more until the target number is updated in the next target period.
According to the technical scheme, the quantity of data packets sent to the distribution unit by the concentration unit is determined by the concentration unit through receiving the target buffer quantity and the air interface rate of the distribution unit reported by the distribution unit, so that the purpose of controlling the flow rate of the F1 interface is achieved, the problem that the F1 interface can lose packets when the air interface quality is deteriorated because the quantity of the data packets sent to the distribution unit by the concentration unit is calculated only according to the buffer memory of the distribution unit is solved, the rate cannot be timely adjusted when the air interface quality is good, and the fluctuation of the air interface rate is relatively large is solved.
Optionally, determining the data packet corresponding to the target number according to the target buffer amount and the air interface rate includes:
a target period is acquired.
Specifically, the CU may learn to obtain the target period according to the reporting period interval of the DU two consecutive times.
And determining the target quantity according to the target buffer quantity, 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 interface rate x target period = target number.
And acquiring the data packets corresponding to the target quantity according to the target data quantity.
Specifically, the CU obtains 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, the target period is acquired by receiving the target buffer quantity and the air interface rate sent by the distribution unit, the target quantity is determined according to the target buffer quantity, the air interface rate and the target period, the data packets corresponding to the target quantity are acquired 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 quantity of the data packets sent by the distribution unit to the concentration unit is calculated according to the buffer of the distribution unit without considering the flow rate, the F1 port loses the packets when the air interface quality is deteriorated, the rate cannot be adjusted in time when the air interface quality is good, and the air interface rate fluctuates relatively are solved.
Example III
Fig. 3 is a flowchart of a data transmission method according to a third embodiment of the present invention, where a preferred example of data transmission between a CU and a DU is given on the basis of the above embodiments. As shown in fig. 3, the data transmission method may include the steps of:
s301, DU acquires target buffer quantity.
In the implementation process, a DDDS reporting period is preset to be 5 milliseconds on the DU, the base station is started, and the cell is successfully established. The UE initiates a service establishment procedure, triggering the base station side CU and the DU side to establish a DRB (Data Radio Bearer ) bearer. After the DRB is established successfully, the RLC module of the DU sends a DDDS message to the CU to trigger the CU to send data.
Specifically, the DDDS reporting mechanism of the DU start period acquires the total buffer size and the used buffer size of the DDDS, determines the remaining buffer size according to the total buffer size and the used buffer size, and determines the remaining buffer size as the target buffer size.
S302, the DU acquires a target data volume and a target time.
In the implementation process, the RLC module of the DU counts the values of the target time thptimmedl and the target data amount 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 from the air interface, the UE sends a feedback HARQ result to the DU, and the DU determines the data amount of which the feedback result is successful as the target data amount. The target data amount may be expressed by ThpVolDl, for example.
From the fact that the buffer of the own bearer of the DU has first packet data as a starting time T1-1 to the fact that the buffer of the own bearer is empty as an ending time T1-2; the data is started to be the starting time T2-1 until the next opportunity, and the buffer memory of the next own bearer is empty to be the ending time T2-2; and so on, the data is started to be the starting time Tn-1 by the nth opportunity, and the buffer of the nth bearing is empty to be the ending time Tn-2. Determining a time interval corresponding to each data packet according to the starting time and the ending time of each data packet: the time interval thptimmedl 1 corresponding to the first packet is equal to T1-2 minus T1-1, the time interval thptimmedl 2 corresponding to the second packet is equal to T2-2 minus T2-1, and so on, the time interval thptimmedln corresponding to the nth packet is equal to Tn-2 minus Tn-1. And adding the time intervals corresponding to all the data packets in the target period to obtain target time, namely target time thptimell=thptimmedl 1+thptimmedl 2+ … … +thptimmedln.
S303, the DU determines the air interface rate according to the target data volume and the target time.
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 amount ThpVolDl/target time thptimmedl (units are kbits/s, and 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 amount ThpVolDl in real time according to an algorithm. The RLC module of the DU calculates the air interface rate DL IP Throughput when the 5 ms target period expires.
In the implementation process, the air interface rate DL IP Throughput can embody the real quality condition of the air interface. If the air quality is poor, the HARQ result fed back by the UE fails more, and the DL IP Throughput rate is low.
S304, the DU sends the target buffer quantity and the air interface rate to the CU.
Specifically, the target buffer size of the DU is carried in the DDDS packet Desired buffer size for the data radio bearer, and the air interface rate is carried in the DDDS packet Desired Data Rate, where Desired Data Rate may be set as the system bandwidth/the current user number.
S305, the CU receives the target buffer quantity and the air interface rate sent by the DU.
Specifically, the CU receives the target buffer size and the air interface rate transmitted by the DU.
S306, the CU acquires the target period.
Specifically, after receiving the DDDS, the PDCP module of the CU may calculate that the target period of the DDDS is 5 ms according to the interval between two consecutive reporting periods of the DU.
S307, the CU determines the target quantity according to the target buffer quantity, the air interface rate and the target period.
Specifically, after receiving the DDDS, the CU calculates the target number AvailDataVolume that can be sent to the DU in the downlink according to the air interface rate carried by Desired Data Rate, i.e., the target buffer size carried by DL IP Throughput and Desired buffer size for the data radio bearer, and the target period. The calculation method of the target number AvailDataVolume may be: target number availdatavolume=target buffer size+air interface rate DL IP throughput×target period.
And S308, the CU sends the data packets corresponding to the target quantity to the DU.
Specifically, when the CU transmits data to the DU, the CU determines that the data exceeding the target number AvailDataVolume cannot be transmitted any more. If the destination number AvailDataVolume is 0, the data transmission is stopped until the destination number AvailDataVolume is updated in the next destination cycle.
According to the technical scheme provided by the embodiment of the invention, the real-time rate condition of the air interface is fed back to the CU, and the CU can timely adjust the data according to the quality condition of the air interface when sending the data to the DU, so that the condition that the data is discarded due to overflow of the DU buffer due to fluctuation of the air interface is well avoided, and the service experience of a user is improved.
Example IV
Fig. 4 is a schematic structural diagram of a data transmission device according to a fourth embodiment of the present invention. As shown in fig. 4, the apparatus includes: an acquisition 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 centralized unit, so that the centralized unit determines, according to the target buffer amount and the air interface rate, a data packet corresponding to a target number;
a first receiving module 403, configured to receive a data packet corresponding to the target number sent by the centralized unit.
Optionally, the obtaining module 401 includes:
a first acquisition unit configured to acquire a total buffer amount and a 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;
and 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:
a first obtaining subunit, configured to obtain the number of data packets received in the target period;
the second acquisition 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:
a sending subunit, configured to send the data packet to a user equipment, and receive a feedback result of the user equipment;
and the third determination subunit is used for determining the target data quantity 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 the corresponding functional modules and beneficial effects of the execution method.
Example five
Fig. 5 is a schematic structural diagram of a data transmission device 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 transmitting 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 size and the air interface rate, a data packet corresponding to the target number;
and 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 acquisition subunit, configured to acquire a target period;
a fourth determining subunit, configured to determine a target number according to the target buffer amount, the air interface rate, and the target period;
and the fourth acquisition subunit is used for acquiring 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 the corresponding functional modules and beneficial effects of the execution method.
Example six
Fig. 6 shows 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. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, 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, such as a Read Only Memory (ROM) 62, a Random Access Memory (RAM) 63, etc., communicatively connected to the at least one processor 61, in which the memory stores a computer program executable by the at least one processor, and the processor 61 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 62 or the computer program loaded from the storage unit 68 into the Random Access Memory (RAM) 63. In the RAM 63, various programs and data required for the operation of the electronic device 60 may 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.
Various 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, etc.; an output unit 67 such as various types of displays, speakers, and the like; a storage unit 68 such as a magnetic disk, an 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.
Processor 61 can be a variety of general-purpose and/or special-purpose processing components having processing and computing capabilities. Some examples of processor 61 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 61 performs the respective methods and processes described above, such as a data transmission method:
acquiring a target buffer quantity and an air interface rate;
the target buffer quantity and the air interface rate are sent to a centralized unit, so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
and receiving the data packets corresponding to the target quantity sent by the centralized unit.
For example, the data transmission method:
receiving a target buffer quantity and an air interface rate sent by the distribution unit;
determining data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
and sending the data packets corresponding to the target quantity to the distribution unit.
In some embodiments, the data transmission method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the 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 RAM 63 and executed by 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 transmission method in any other suitable way (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On 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, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out 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 implemented. The computer program may execute entirely on the 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. The 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 portable 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) through 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 may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background 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 background, 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. The client and server are typically 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 hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. A data transmission method, applied to a distribution unit, comprising:
acquiring a target buffer quantity and an air interface rate;
the target buffer quantity and the air interface rate are sent to a centralized unit, so that the centralized unit determines data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
receiving data packets corresponding to the target quantity sent by the centralized unit;
the method for acquiring the target buffer quantity and the air interface rate comprises the following steps:
acquiring total buffer memory and used buffer memory;
determining a remaining amount of buffering based on the total amount of buffering and the used amount of buffering;
determining the residual buffer quantity as a target buffer quantity;
obtaining a target data volume and a target time, wherein the target data volume is the data volume successfully transmitted by the distribution unit at all air interfaces in the reporting period, and the target time is the sum of the time from the time when all the caches of the distribution unit have data packets to the time when the caches of the distribution unit are empty;
and determining the air interface rate according to the target data quantity and the target time.
2. The method of claim 1, wherein obtaining the target time comprises:
acquiring the number of data packets received in a target period;
acquiring the starting time and the ending time corresponding to 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.
3. The method of claim 2, wherein obtaining the target amount of data comprises:
the data packet is sent to user equipment, and a feedback result of the user equipment is received;
and determining the target data volume according to the feedback result.
4. A data transmission method, applied to a centralized unit, comprising:
receiving target buffer quantity and air interface rate sent by a distribution unit;
determining data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
transmitting the data packets corresponding to the target quantity to the distribution unit;
the determining the data packet corresponding to the target number according to the target buffering amount and the air interface rate comprises the following steps:
acquiring a target period;
determining a target number according to the target buffer quantity, the air interface rate and the target period;
acquiring data packets corresponding to the target quantity according to the target data quantity;
wherein determining the target number according to the target buffer amount, the air interface rate, and the target period includes:
and adding the sum of the product of the air interface rate and the target period to the target cache amount as the target number.
5. A data transmission device, characterized by being applied to a distribution unit, comprising:
the acquisition module is used for acquiring the target buffer quantity and the air interface rate;
the first sending module is used for sending the target buffer quantity and the air interface rate to a centralized unit so that the centralized unit can determine data packets corresponding to the target quantity according to the target buffer quantity and the air interface rate;
the first receiving module is used for receiving data packets corresponding to the target quantity sent by the centralized unit;
wherein, the acquisition module includes:
a first acquisition unit configured to acquire a total buffer amount and a 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;
the second acquisition unit is used for acquiring target data volume and target time, wherein the target data volume is the sum of the time from the time when all the caches of the distribution unit in the reporting period have data packets to the time when the caches of the distribution unit in the reporting period are empty, and the data volume is the data volume successfully transmitted by all the distribution unit in the reporting period in the air interface;
and a third determining unit, configured to determine an air interface rate according to the target data amount and the target time.
6. A data transmission device, characterized by being applied to a centralized unit, comprising:
the second receiving module is used for receiving the target buffer quantity 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 quantity and the air interface rate;
the second sending module is used for sending the data packets corresponding to the target quantity to the distribution unit;
wherein the determining module comprises:
a third acquisition subunit, configured to acquire a target period;
a fourth determining subunit, configured to determine a target number according to the target buffer amount, the air interface rate, and the target period;
a fourth obtaining subunit, configured to obtain, according to the target data amount, a data packet corresponding to the target number;
wherein determining the target number according to the target buffer amount, the air interface rate, and the target period includes:
and adding the sum of the product of the air interface rate and the target period to the target cache amount as the target number.
7. An electronic device, the electronic device comprising:
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 to enable the at least one processor to perform the data transmission method of any one of claims 1-3 or claim 4.
8. A computer readable storage medium storing computer instructions for causing a processor to perform the data transmission method of any one of claims 1-3 or claim 4.
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