WO2015062418A1 - 发送数据包的方法、装置及设备 - Google Patents

发送数据包的方法、装置及设备 Download PDF

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Publication number
WO2015062418A1
WO2015062418A1 PCT/CN2014/088765 CN2014088765W WO2015062418A1 WO 2015062418 A1 WO2015062418 A1 WO 2015062418A1 CN 2014088765 W CN2014088765 W CN 2014088765W WO 2015062418 A1 WO2015062418 A1 WO 2015062418A1
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WIPO (PCT)
Prior art keywords
packet
client
data packet
buffer area
loss rate
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PCT/CN2014/088765
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English (en)
French (fr)
Inventor
周俊清
龙兴平
曾新海
Original Assignee
腾讯科技（深圳）有限公司
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Publication of WO2015062418A1 publication Critical patent/WO2015062418A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/188—Time-out mechanisms

Definitions

  • the present invention relates to the field of Internet technologies, and in particular, to a method, device, and device for transmitting a data packet.
  • the data on the Internet is becoming more and more abundant, and users can obtain various data such as video data and audio data from the Internet through the client.
  • a network transmission protocol such as TCP (Transmission Control Protocol)/IP (Internet Protocol)
  • TCP Transmission Control Protocol
  • IP Internet Protocol
  • the network side device when the network side device sends data to the client, the data is packaged into a data packet to the data packet. The form sends the data to the client.
  • the data packet is usually lost due to network congestion or network abnormality. Therefore, it is necessary to propose a method of transmitting a data packet to reduce the packet loss rate of the transmitted data packet.
  • the usual method is downlink dual transmission.
  • the network side device sends a duplicate packet of the data packet while transmitting the data packet, so that the client achieves the purpose of reducing the packet loss rate of the sent data packet by receiving at least one of the data packet or the repeated packet of the data packet.
  • Embodiments of the present invention provide a method, an apparatus, and a terminal for transmitting a data packet to solve one or more of the above problems.
  • the technical solution is as follows:
  • a method of transmitting a data packet comprising:
  • the network side device sends a data packet to the client, and caches the duplicate packet of the data packet to the buffer area;
  • the network side device After the first preset time interval, the network side device takes out the repeated packet of the data packet from the buffer area;
  • the network side device sends a duplicate packet of the data packet to the client.
  • an apparatus for transmitting a data packet comprising:
  • a first sending module configured to send a data packet to the client
  • a cache module configured to cache the duplicate packet of the data packet to a buffer area
  • the module is configured to: after the first preset time interval, remove the repeated packet of the data packet from the buffer area;
  • a second sending module configured to send the repeated packet of the data packet to the client.
  • a third aspect provides a network side device, where the network side device includes the apparatus for transmitting a data packet according to the second aspect.
  • the duplicate packet of the data packet By buffering the repeated packets of the data packet to the buffer area, and after the first preset time interval, the duplicate packet of the data packet is taken out from the buffer area, and the duplicate packet of the data packet is sent to the client to implement the data packet and the data.
  • the repeated packets of the packet are sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost, thereby reducing the packet loss rate of the transmitted data packet.
  • FIG. 1 is a flowchart of a method for transmitting a data packet according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for transmitting a data packet according to another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a ring buffer area according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for transmitting a data packet according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for transmitting a data packet according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • an exemplary embodiment of the present invention provides a method for sending a data packet.
  • Figure 1 the method provided by this embodiment of the present invention includes:
  • the network side device sends a data packet to the client, and caches the duplicate packet of the data packet to the buffer area.
  • the buffer area can be, for example, a ring buffer area
  • Cache duplicate packets of the packet to the cache including:
  • the duplicate packet of the packet is cached after the storage location of the duplicate packet that has been stored in the buffer.
  • the buffer area may be, for example, part of the memory of the network side device or may be part of the memory separate from the network side device.
  • the network side device After the first preset time interval, the network side device extracts the repeated packet of the data packet from the buffer area.
  • the network side device sends a duplicate packet of the data packet to the client.
  • the buffer area Before caching the duplicate packets of the data packet to the buffer area, for example, it may also include:
  • the step of buffering the duplicate packet of the packet to the buffer is performed.
  • the determining the packet loss rate corresponding to the client includes:
  • the packet loss rate corresponding to the client is determined according to the number of times the downlink retransmission request is received and the total number of data packets sent in the second preset time.
  • the client After sending the duplicate packet of the data packet to the client, for example, it may also include:
  • the duplicate packet of the next data packet is taken out from the buffer area, and the repeated packet of the next data packet is sent to the client.
  • the method may further include:
  • the next step is sent to the client.
  • the method provided by the embodiment of the present invention sends a duplicate packet of the data packet to the client by buffering the duplicate packet of the data packet to the buffer area and extracting the repeated packet of the data packet from the buffer area after the first preset time interval.
  • the repeated packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost, and then Reduce the packet loss rate of sending packets.
  • another exemplary embodiment of the present invention provides a method for transmitting a data packet.
  • the data packet sent by the network side device to the client is audio.
  • the data packet is taken as an example to illustrate the method provided by this embodiment of the present invention. Referring to FIG. 2, the method process provided by this embodiment of the present invention includes:
  • the network side device can After receiving the data request sent by the client, the data requested by the client is packaged into a data packet, thereby triggering the sending of the data packet to the client. For example, if the client requests certain audio data from the network side device according to the actual demand, the network side device may send the data packet to the client after the audio data requested by the client is packaged into a data packet.
  • the network side device may send a data packet to the client.
  • the embodiment of the present invention does not specifically limit the manner in which the data packet is sent.
  • the network side device may divide all the data packets into several copies, and send one copy each time; in addition, it may also be All packets are sorted and then each of them is sent in order.
  • the network side device may send a data packet to the client, and may also send a duplicate packet of the data packet to the client. Realizes that the client can receive duplicate packets of the data packet when the packet is lost, thus ensuring the probability that the data packet is successfully received by the client.
  • the data packets sent to the client are sometimes not lost. If the data packet is not lost, the client will filter the duplicate packets of the received data packet, so The repeated packets of the data packets sent to the client are sometimes unnecessary. At this time, not only the data transmission efficiency is reduced, but also certain network resources are wasted.
  • the method provided by the embodiment of the present invention determines the packet loss rate corresponding to the client, and adopts a method of sending a duplicate packet of the data packet when the packet loss rate exceeds a preset threshold, thereby saving duplication of unnecessary data packets. Wrapped network resources.
  • the client After receiving the data packet sent by the network side device, the client analyzes the status of the received data packet to determine which data packets are not received. For the unreceived data packet, the client sends a downlink retransmission request to the network side device, and requires the network side device to resend the data packets that are not received. In addition, the network side device can also count the total number of data packets sent to the client within a certain period of time. Therefore, when determining the packet loss rate corresponding to the client, the following methods are included, but not limited to:
  • the packet loss rate corresponding to the client is determined according to the number of times the downlink retransmission request is received and the total number of data packets sent in the second preset time.
  • the second preset time may have multiple values, for example, the second preset time is 3.
  • the second embodiment, the present invention does not limit the specific size of the second preset time.
  • the second preset time is 10 seconds. If the number of times the network side device receives the downlink retransmission request sent by the client is 10 times, and the network side device is in the time period, The total number of packets sent by the client is 100, and the packet loss rate corresponding to the client is 10%.
  • the packet loss rate corresponding to the determined client may be compared with a preset threshold.
  • the size of the preset threshold may be determined according to the difference between the sent data packet and the network running. For example, the preset threshold may be set to 6%, 8%, etc., and the preset is also not preset in this embodiment. The size of the threshold is specifically limited. In actual applications, regardless of the preset threshold, the preset threshold can reflect the packet loss rate of the client. For example, if the packet loss rate of the client exceeds the preset threshold, the packet loss of the client is severe. If the packet loss rate of the client does not exceed the preset threshold, the packet loss of the client is not serious.
  • the duplicate packet of the data packet is cached to the buffer area.
  • the packet loss rate of the client exceeds the preset threshold, indicating that the packet loss of the client is serious.
  • the method provided by the embodiment of the present invention is directed to the client. After the packet is sent, a duplicate packet of the packet is also sent to the client through subsequent steps. When the data packet and the data packet are simultaneously transmitted, the probability that the data packet and the data packet are simultaneously lost is relatively large. For this reason, the method provided by the embodiment of the present invention first sends the data packet. The duplicate packet of the packet is buffered to the buffer area to implement the repeated packetization of the data packet and the data packet. Don't send it to the client at different times, which reduces the probability of duplicate packets and packets being lost at the same time.
  • the buffer area includes, but is not limited to, a queue buffer area, a ring buffer area, and the like.
  • the embodiment of the present invention does not limit the form of the buffer area. Since the ring buffer buffers data, it is not necessary to pre-allocate the storage locations, but the data is accessed in a sequential order according to a predetermined sequence of access data, such as a clockwise sequence, and the positions of the write pointer and the read pointer. The data access is fast, so the embodiment of the present invention can preferentially select the ring buffer.
  • a predetermined sequence of access data such as a clockwise sequence
  • the embodiment of the present invention can preferentially select the ring buffer.
  • the ring buffer area includes two pointers to the corresponding storage area in addition to the ring-shaped storage area.
  • One of them is a write pointer for indicating the storage area of the last cached duplicate packet in the buffer area or the next storage area of the storage area of the last cached duplicate packet in the buffer area.
  • the other is a read pointer for indicating the storage area of the duplicate packet currently to be read in the buffer area or the previous storage area of the storage area of the duplicate packet currently to be read in the buffer area.
  • the manner of buffering the duplicate packet of the data packet to the buffer area includes, but is not limited to, determining whether the buffer area is full. If the buffer is not full, the duplicate packet of the packet is cached after the storage location of the duplicate packet that has been stored in the buffer.
  • the buffer area when it is determined whether the buffer area is full, it can be determined by detecting the read pointer of the ring buffer area and the storage area pointed by the write pointer. For example, if the write pointer is used to indicate the storage area of the last cached duplicate packet in the buffer area, the read pointer is used to indicate the storage area of the duplicate packet currently to be read, and if the read pointer and the write pointer of the ring buffer area are The adjacent storage area determines that the buffer area is full, otherwise the buffer area is not full. Since the buffer can no longer be cached when the buffer is full, it is determined that the operation of buffering the duplicate packets of the packet to the buffer fails; if the buffer is not full, it is already stored in the buffer. After repeating the storage location of the packet, the duplicate packet of the data packet can be cached.
  • the repeated packet of the data packet is taken out from the buffer area, and the repeated packet of the data packet is sent to the client.
  • the first preset time can be set according to actual conditions.
  • the first preset time may be 1 second, 2 seconds, or 3 seconds, etc., and the first preset time is not limited in this embodiment.
  • the method further includes the step of determining whether the buffer area is empty. If the buffer area is empty, it is determined that the operation of removing the duplicate packet of the data packet from the buffer area fails; if the buffer area is not empty, the duplicate packet of the data packet of the specified location is taken. If the buffer area is a ring buffer area, when the duplicate packet of the data packet is taken out from the buffer area, the duplicate packet or the position of the read pointer of the data packet at the position pointed by the read pointer may be fetched in the order of the preset access data. A duplicate of a packet in a storage area.
  • the buffer area is a ring buffer area
  • the write pointer is used to indicate the next storage area of the last cached duplicate packet in the buffer area
  • the read pointer is used to indicate the current duplicate packet to be read.
  • the previous storage area of the storage area can be realized by judging whether the read pointer and the write pointer point to the same position. When the read pointer and the write pointer point to the same location, it is judged that the buffer area is empty, otherwise, the buffer area is not empty.
  • the buffer area is not empty, when the duplicate packet of the data packet in the buffer area is taken out, the repeated packet of the data packet in the buffer area may be sequentially taken out according to the preset access data order.
  • the network congestion or network anomalies may change over time, and the packet loss rate of the client changes continuously as the network congestion or network abnormality changes. Therefore, after the duplicate packet of the data packet is sent to the client, the present The method provided by the embodiment may further re-determine the packet loss rate corresponding to the client every third preset time to determine whether to continue to buffer the repeated packet of the sent next data packet to the buffer area according to the re-determined packet loss rate. If the re-determined packet loss rate still exceeds the preset threshold, you will still need to The repeated packet of the next data packet sent is buffered to the buffer area; after the first preset time interval, the duplicate packet of the next data packet sent is taken out from the buffer area, and the duplicate packet of the next data packet is sent to Client.
  • the packet loss rate of the re-determined client does not exceed the preset threshold, the packet loss of the client is not serious. If the packet is sent to the client again, the packet will occupy a large amount of bandwidth resources. The network congestion is caused. Therefore, when it is determined that the packet loss rate corresponding to the re-determined client does not exceed the preset threshold, the next data packet is sent to the client, but the duplicate packet of the next data packet is not cached to the buffer. That is to say, after the next data packet is sent to the client, the duplicate packet of the next data packet is not cached to the buffer area, and the duplicate packet of the data packet is taken out from the buffer area after the first preset time interval.
  • the step of sending a duplicate packet of the packet to the client This can reduce the number of duplicate packets that send packets to the client, saving network bandwidth resources.
  • the size of the third preset time may be set according to the actual situation.
  • the embodiment of the present invention does not specifically limit the size of the third preset time.
  • the third preset time can be set as small as possible.
  • the third preset time can be set to 10 seconds.
  • the method provided by the embodiment of the present invention sends a duplicate packet of the data packet to the client by buffering the duplicate packet of the data packet to the buffer area and extracting the repeated packet of the data packet from the buffer area after the first preset time interval.
  • the repeated packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost, and then Reduce the packet loss rate of sending packets.
  • an exemplary embodiment of the present invention provides an apparatus for transmitting a data packet, where the apparatus includes:
  • a first sending module 401 configured to send a data packet to the client
  • the cache module 402 is configured to cache the repeated packets of the data packet to the buffer area;
  • the module 403 is configured to: after the first preset time interval, remove the repeated packet of the data packet from the buffer area;
  • the second sending module 404 is configured to send the repeated packet of the data packet to the client.
  • the buffer area can be, for example, a ring buffer area
  • the cache module 402 includes:
  • a determining unit configured to determine whether the buffer area is full
  • a cache unit configured to cache a duplicate packet of the data packet after the storage location of the duplicate packet stored in the buffer area when the buffer area is not full.
  • the apparatus may further include, for example:
  • a determining module 405, configured to determine a packet loss rate corresponding to the client
  • the determining module 406 is configured to determine whether the packet loss rate corresponding to the client exceeds a preset threshold.
  • the cache module 402 performs the step of buffering the repeated packets of the data packet to the buffer area when the packet loss rate corresponding to the client exceeds a preset threshold.
  • the determining module 405 can include, for example:
  • the statistics unit is configured to count the number of times the downlink retransmission request sent by the client is received within the second preset time;
  • the determining unit is configured to determine, according to the number of times the downlink retransmission request is received and the total number of data packets sent in the second preset time, the packet loss rate corresponding to the client.
  • the determining module 405 can also be used, for example, to re-determine the packet loss rate corresponding to the client every third preset time;
  • the determining module 406 is further configured to determine whether the packet loss rate corresponding to the re-determined client exceeds a preset threshold
  • the first sending module 401 is further configured to: when the re-determined client corresponds to a packet loss rate exceeding a preset threshold Send the next data packet to the client;
  • the cache module 402 is further configured to cache the duplicate packet of the next data packet to the buffer area;
  • the module 403 is further configured to: after the first preset time interval, remove the duplicate packet of the next data packet from the buffer area;
  • the second sending module 404 is further configured to send the repeated packet of the next data packet to the client.
  • the first sending module 401 can be used, for example, to send the next data packet to the client when the packet loss rate corresponding to the re-determined client does not exceed the preset threshold;
  • the cache module 402 is further configured to stop buffering the duplicate packet of the next data packet to the buffer area when the packet loss rate corresponding to the re-determined client does not exceed the preset threshold.
  • the device provided by the embodiment of the present invention sends a duplicate packet of the data packet to the client by buffering the repeated packet of the data packet to the buffer area and taking the repeated packet of the data packet from the buffer area after the first preset time interval.
  • the repeated packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost, and then Reduce the packet loss rate of sending packets.
  • An exemplary embodiment of the present invention provides a network side device, which includes means for transmitting a data packet.
  • the network side device can be, for example, a server.
  • An exemplary network side device (or server) can include, for example, a processor, a storage medium, a monitor, a communication module, a database, a peripheral device, and one or more buses that connect the components together.
  • a processor for example, a processor, a storage medium, a monitor, a communication module, a database, a peripheral device, and one or more buses that connect the components together.
  • a network side device or server
  • the processor can include any suitable processor or processors. Moreover, the processor can include multiple cores for multi-threading or parallel processing.
  • the storage medium may include a memory module such as a ROM, a RAM, a flash memory, a mass storage device (for example, a CD-ROM, a USB flash drive, and a removable hard disk, etc.).
  • the storage medium can store a computer program that performs various processes while running on the processor.
  • the monitor can include, for example, a display device for displaying content of a particular user interface.
  • Peripherals may include input/output devices such as a keyboard and mouse.
  • the communication module can include a network device for establishing a connection over a communication network.
  • the database may include one or more databases for storing specific data and performing specific operations (eg, database management, data extraction, analysis, etc.) on the stored data.
  • the network side device may include, for example, a device for transmitting a data packet as provided in the above embodiment.
  • a device for transmitting a data packet as provided in the above embodiment.
  • the network side device caches the repeated packet of the data packet by buffering the repeated packet of the data packet to the buffer area, and after receiving the repeated packet of the data packet from the buffer area after the first preset time interval, To the client, the duplicate packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost. , thereby reducing the packet loss rate of the transmitted data packet.
  • FIG. 6 is a schematic structural diagram of an exemplary client involved in an exemplary embodiment of the present invention, that is, a method for transmitting a data packet provided in the foregoing embodiment. Specifically:
  • the terminal 600 may include an RF (Radio Frequency) circuit 110, a memory 120 including one or more computer readable storage media, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, and a WiFi (Wireless Fidelity, wireless).
  • the fidelity module 170 includes a processor 180 having one or more processing cores, and a power supply 190 and the like. It will be understood by those skilled in the art that the terminal structure shown in FIG. 6 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements. among them:
  • the RF circuit 110 can be used for transmitting and receiving information or during a call, and receiving and transmitting signals. Specifically, after receiving downlink information of the base station, the downlink information is processed by one or more processors 180. In addition, the data related to the uplink is sent to the base station. .
  • the RF circuit 110 includes, but is not limited to, an antenna, at least one An amplifier, tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, an LNA (Low Noise Amplifier), a duplexer, and the like.
  • SIM Subscriber Identity Module
  • RF circuitry 110 can also communicate with the network and other devices via wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access). , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), e-mail, SMS (Short Messaging Service), and the like.
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • e-mail Short Messaging Service
  • the memory 120 can be used to store software programs and modules, and the processor 180 executes various functional applications and data processing by running software programs and modules stored in the memory 120.
  • the memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to The data created by the use of the terminal 600 (such as audio data, phone book, etc.) and the like.
  • memory 120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 120 may also include a memory controller to provide access to memory 120 by processor 180 and input unit 130.
  • the input unit 130 can be configured to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.
  • input unit 130 can include touch-sensitive surface 131 as well as other input devices 132.
  • Touch-sensitive surface 131 also referred to as a touch display or trackpad, can collect touch operations on or near the user (such as a user using a finger, stylus, etc., on any suitable object or accessory on touch-sensitive surface 131 or The operation near the touch-sensitive surface 131) and driving the corresponding connecting device according to a preset program.
  • touch-sensitive surface 131 The touch detection device and the touch controller can be included in two parts.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 180 is provided and can receive commands from the processor 180 and execute them.
  • the touch-sensitive surface 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 130 can also include other input devices 132.
  • other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 140 can be used to display information entered by the user or information provided to the user and various graphical user interfaces of the terminal 600, which can be composed of graphics, text, icons, video, and any combination thereof.
  • the display unit 140 may include a display panel 141.
  • the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.
  • the touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation thereon or nearby, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 according to the touch event The type provides a corresponding visual output on display panel 141.
  • touch-sensitive surface 131 and display panel 141 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 131 can be integrated with display panel 141 for input. And output function.
  • Terminal 600 may also include at least one type of sensor 150, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 141 according to the brightness of the ambient light, and the proximity sensor may close the display panel 141 when the terminal 600 moves to the ear. / or backlight.
  • the gravity acceleration sensor can detect the acceleration of each direction (usually three axes), and it can be at rest.
  • Detecting the magnitude and direction of gravity can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; as for the terminal 600
  • Other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors are not described here.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the terminal 600.
  • the audio circuit 160 can transmit the converted electrical data of the received audio data to the speaker 161 for conversion to the sound signal output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal by the audio circuit 160. After receiving, it is converted into audio data, and then processed by the audio data output processor 180, transmitted to the terminal, for example, via the RF circuit 110, or outputted to the memory 120 for further processing.
  • the audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the terminal 600.
  • WiFi is a short-range wireless transmission technology
  • the terminal 600 can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 170, which provides wireless broadband Internet access for users.
  • FIG. 6 shows the WiFi module 170, it can be understood that it does not belong to the essential configuration of the terminal 600, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 180 is the control center of the terminal 600, which connects various portions of the entire terminal using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 120, and recalling data stored in the memory 120, The various functions and processing data of the terminal 600 are performed to perform overall monitoring of the terminal.
  • the processor 180 may include one or more processing cores; the processor 180 may, for example, integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, etc., modulation
  • the demodulation processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 180.
  • the terminal 600 further includes a power source 190 (such as a battery) for supplying power to the various components, and the power source can pass, for example.
  • the power management system is logically coupled to the processor 180 to manage functions such as charging, discharging, and power management through the power management system.
  • Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
  • the terminal 600 may further include a camera, a Bluetooth module, and the like, and details are not described herein.
  • the display unit of the terminal is a touch screen display
  • the terminal further includes a memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be processed by one or more Execution.
  • An exemplary embodiment of the present invention provides a computer readable storage medium, which may be a computer readable storage medium included in the memory in the above embodiment, or may exist separately, not assembled into the terminal.
  • Computer readable storage medium stores one or more programs that are used by one or more processors to perform a method of implementing a data packet, the method comprising:
  • the duplicate packet of the data packet is taken out from the buffer area;
  • the memory of the terminal further includes an instruction for performing the following operations:
  • the area is a ring buffer; the duplicate packet of the packet is cached to the buffer, including:
  • the duplicate packet of the packet is cached after the storage location of the duplicate packet that has been stored in the buffer.
  • the end memory also includes instructions for performing the following operations: before caching the duplicate packets of the data packet to the buffer area, the method further includes:
  • the step of buffering the duplicate packet of the packet to the buffer is performed.
  • the memory of the terminal further includes an instruction for: determining a packet loss rate corresponding to the client, including:
  • the packet loss rate corresponding to the client is determined according to the number of times the downlink retransmission request is received and the total number of data packets sent in the second preset time.
  • the memory of the terminal further includes an instruction for: transmitting the repeated packet of the data packet to the client After the end, it also includes:
  • the duplicate packet of the next data packet is taken out from the buffer area, and the repeated packet of the next data packet is sent to the client.
  • the memory of the terminal further includes an instruction for performing the following operations: determining the re-determined client correspondence After the packet loss rate exceeds the preset threshold, it also includes:
  • the packet loss rate corresponding to the re-determined client does not exceed the preset threshold, the next data packet is sent to the client, but the duplicate packet of the next data packet is not cached to the buffer.
  • the computer readable storage medium caches the repeated packets of the data packet by buffering the repeated packets of the data packet to the buffer area, and after the first preset time interval, the data packet is repeated.
  • the packet is sent to the client, and the repeated packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are reduced and lost. The situation, in turn, reduces the packet loss rate of the transmitted data packet.
  • An exemplary embodiment of the present invention provides a graphical user interface for use on a network side device; the graphical user interface includes:
  • the duplicate packet of the data packet is taken out from the buffer area;
  • the graphic user interface caches the repeated packets of the data packet by buffering the repeated packets of the data packet to the buffer area, and after receiving the repeated packet of the data packet from the buffer area after the first preset time interval, To the client, the duplicate packets of the data packet and the data packet are respectively sent to the client at different times, so that when the network is abnormal or the network is congested for a certain period of time, the duplicate packets of the data packet and the data packet are simultaneously lost. , thereby reducing the packet loss rate of the transmitted data packet.
  • the apparatus for transmitting a data packet is the same concept as the method for transmitting a data packet, and the specific implementation process is described in the method implementation. For example, I won't go into details here.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种发送数据包的方法、装置及终端，属于互联网技术领域。所述方法包括：网络侧设备向客户端发送数据包，并将所述数据包的重复包缓存至缓存区；间隔第一预设时间后，网络侧设备从所述缓存区中取出所述数据包的重复包，并将所述数据包的重复包发送给所述客户端。本发明通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。

Description

发送数据包的方法、装置及设备
相关申请的交叉引用
本申请要求于2013年11月4日提交的申请号为201310538493.X、发明名称为“发送数据包的方法、装置及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及互联网技术领域，特别涉及一种发送数据包的方法、装置及设备。
背景技术
随着互联网技术的迅速发展，互联网上的数据越来越丰富，用户可以通过客户端从互联网上获取各种各样的数据，如视频数据、音频数据等。而依据TCP(Transmission Control Protocol，传输控制协议)/IP(Internet Protocol，因特网互联协议)等网络传输协议，网络侧设备在将数据发送给客户端时，会将数据打包成数据包，以数据包的形式将数据发送给客户端。然而，在网络侧设备将数据包发送给客户端的过程中，通常会由于网络拥堵或网络异常等原因造成数据包的丢失。因此，有必要提出一种发送数据包的方法，以降低发送数据包的丢包率。
在发送数据包时，通常采用的方法为下行双发。具体为：网络侧设备在发送数据包的同时发送数据包的重复包，使客户端通过接收数据包或数据包的重复包中的至少一个来达到降低发送数据包的丢包率的目的。
由于网络拥堵或网络异常通常发生在某一个特定的时间段，因此，若同时发送数据包和数据包的重复包，有可能在网络拥堵或网络异常时出现数据包和 数据包的重复包同时丢失的情况，致使降低发送数据包的丢包率的效果不佳。
发明内容
本发明实施例提供了一种发送数据包的方法、装置及终端，以解决上述问题中的一个或多个。所述技术方案如下：
第一方面，提供了一种发送数据包的方法，所述方法包括：
网络侧设备向客户端发送数据包，并将所述数据包的重复包缓存至缓存区；
间隔第一预设时间后，所述网络侧设备从所述缓存区中取出所述数据包的重复包；
所述网络侧设备将所述数据包的重复包发送给所述客户端。
第二方面，提供了一种发送数据包的装置，所述装置包括：
第一发送模块，用于向客户端发送数据包；
缓存模块，用于将所述数据包的重复包缓存至缓存区；
取出模块，用于间隔第一预设时间后，从所述缓存区中取出所述数据包的重复包；
第二发送模块，用于将所述数据包的重复包发送给所述客户端。
第三方面，提供了一种网络侧设备，所述网络侧设备包括上述第二方面所述的发送数据包的装置。
本发明实施例提供的技术方案带来的有益效果是：
通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本发明一个实施例提供的一种发送数据包的方法流程图；
图2是根据本发明另一实施例提供的一种发送数据包的方法流程图；
图3是根据本发明实施例提供的一种环形缓存区的结构示意图；
图4是根据本发明一个实施例提供的一种发送数据包的装置的结构示意图；
图5是根据本发明另一实施例提供的一种发送数据包的装置的结构示意图；
图6是根据本发明实施例提供的一种终端的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
为了在网络不稳或网络总体带宽资源受限时，降低网络侧设备向客户端发送视频、音频等数据包的丢包率，本发明一个示例实施例提供了一种发送数据包的方法，参见图1，本发明该实施例提供的方法包括：
101：网络侧设备向客户端发送数据包，并将数据包的重复包缓存至缓存区。
缓存区例如可以为环形缓存区；
将数据包的重复包缓存至缓存区，包括：
判断缓存区是否已满；
如果缓存区未满，则在缓存区中已存储的重复包的存储位置之后缓存数据包的重复包。
缓存区例如可以是网络侧设备的存储器的一部分，或者可以是与网络侧设备分离的存储器的一部分。
102：间隔第一预设时间后，网络侧设备从缓存区中取出数据包的重复包。
103：网络侧设备将数据包的重复包发送给客户端。
将数据包的重复包缓存至缓存区之前，例如还可以包括：
确定客户端对应的丢包率；和
判断客户端对应的丢包率是否超过预设阈值。
如果客户端对应的丢包率超过预设阈值，则执行将数据包的重复包缓存至缓存区的步骤。
其中，确定客户端对应的丢包率，包括：
统计在第二预设时间内接收客户端发送的下行重发请求的次数；
根据接收下行重发请求的次数及在第二预设时间内发送数据包的总个数确定客户端对应的丢包率。
将数据包的重复包发送给客户端之后，例如还可以包括：
每隔第三预设时间重新确定客户端对应的丢包率；
判断重新确定的客户端对应的丢包率是否超过预设阈值；
如果重新确定的客户端对应的丢包率超过预设阈值，则向客户端发送下一个数据包，并将下一个数据包的重复包缓存至缓存区；
间隔第一预设时间后，从缓存区中取出下一个数据包的重复包，并将下一个数据包的重复包发送给客户端。
判断重新确定的客户端对应的丢包率是否超过预设阈值之后，例如还可以包括：
如果重新确定的客户端对应的丢包率未超过预设阈值，则向客户端发送下 一个数据包，但不将下一个数据包的重复包缓存至缓存区。
本发明实施例提供的方法，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
结合上述实施例的内容，本发明另一示例实施例提供了一种发送数据包的方法。在具体应用中，考虑到客户端对音频数据传输的实时性要求以及音频播放器具有的过滤数据包的重复包的性能，本发明该实施例以网络侧设备向客户端发送的数据包为音频数据包为例，对本发明该实施例提供的方法进行举例说明。参见图2，本发明该实施例提供的方法流程包括：
201：向客户端发送数据包。
针对该步骤，触发向客户端发送数据包的方式有多种，由于在TCP/IP协议等一些常用的网络传输协议中，可以将数据打包成一个个数据包进行传输，因此，网络侧设备可以在接收到客户端发送的数据请求后，将客户端请求的数据打包成数据包，从而触发向客户端发送数据包。例如，如果客户端根据实际需求向网络侧设备请求某一音频数据，则网络侧设备可以将客户端请求的音频数据打包成数据包之后，向客户端发送该数据包。
当然，除上述触发向客户端发送数据包的方式外，还可以有其他触发方式，本实施例不对触发向客户端发送数据包的方式进行具体限定。
关于网络侧设备向客户端发送数据包的方式，也可以有很多种，本发明实施例不对发送数据包的方式进行具体限定。具体实施时，包括但不限于网络侧设备可以将所有的数据包分为若干份，每次发送其中的一份；此外，还可以对 所有数据包进行排序，然后每次按顺序发送其中的每一个数据包。
202：确定客户端对应的丢包率，并判断客户端对应的丢包率是否超过预设阈值。
为了在网络异常或网络拥堵时，降低网络侧设备向客户端发送的数据包丢失的概率，网络侧设备在向客户端发送数据包的同时，还可以向客户端发送数据包的重复包，以实现在数据包丢失时，使客户端能够接收数据包的重复包，从而保证数据包被客户端成功接收的概率。然而，由于不同时间或不同区域对应的网络情况下，发送给客户端的数据包有时并不会丢失，如果数据包不会丢失，则客户端会将接收到的数据包的重复包过滤掉，因此，向客户端发送的数据包的重复包有时是不必要的，此时，不仅降低了数据包的发送效率，还浪费了一定的网络资源。为此，本发明实施例提供的方法会确定客户端对应的丢包率，丢包率超过预设阈值时才采取发送数据包的重复包的方式，从而节省因发送不必要的数据包的重复包而浪费的网络资源。
关于确定客户端对应的丢包率的方式，可以有很多种。具体实施时，当客户端接收网络侧设备发送的数据包后，会对接收的数据包的情况进行分析，确定没有接收到哪些数据包。针对没有接收到的数据包，客户端会向网络侧设备发送下行重发请求，要求网络侧设备重新发送那些没有接收到的数据包。另外，网络侧设备也可以统计一段时间内向客户端发送的数据包的总个数。因此，确定客户端对应的丢包率时，包括但不限于采用如下方式：
统计在第二预设时间内接收客户端发送的下行重发请求的次数；
根据接收下行重发请求的次数及在第二预设时间内发送数据包的总个数确定客户端对应的丢包率。
其中，第二预设时间的大小可以有多种数值，例如，该第二预设时间为3 秒钟，5秒钟，10秒钟等等，本发明实施例不对第二预设时间的具体大小进行限定。
例如，以第二预设时间为10秒为例，如果在该时间段内，网络侧设备接收客户端发送的下行重发请求的次数为10次，且在该时间段内，网络侧设备向该客户端发送的数据包的总个数为100个，则此时该客户端对应的丢包率则为10％。
当然，除采用上述确定客户端对应的丢包率的方式外，还可以采用其他确定方式，本发明实施例对此不作具体限定。
进一步地，确定客户端对应的丢包率之后，判断客户端对应的丢包率是否超过预设阈值时，可以将确定的客户端对应的丢包率与预设阈值进行比较。关于预设阈值的大小，具体实施时，可以根据发送的数据包的不同以及网络运行情况而定，例如，可以将预设阈值设置为6％、8％等等，本实施例同样不对预设阈值的大小进行具体限定。实际应用中，无论预设阈值的大小为多少，该预设阈值均可以反映客户端的丢包率情况。例如，如果客户端丢包率超过预设阈值，则说明该客户端的丢包情况比较严重；如果客户端丢包率未超过预设阈值，则说明该客户端的丢包情况不是很严重。
203：如果客户端对应的丢包率超过预设阈值，则将数据包的重复包缓存至缓存区。
针对该步骤，由于客户端对应的丢包率超过预设阈值，则说明该客户端的丢包情况比较严重，为了提高客户端接收数据包的成功率，本发明实施例提供的方法在向客户端发送数据包之后，通过后续步骤还将向客户端发送数据包的重复包。又考虑到将数据包和数据包的重复包同时发送时，数据包和数据包的重复包同时丢失的概率比较大，为此，本发明实施例提供的方法在发送数据包后，先将数据包的重复包缓存至缓存区，以实现将数据包及数据包的重复包分 别在不同时间发送给客户端，进而降低数据包和数据包的重复包同时丢失的概率。
其中，缓存区包括但不限于采用队列缓存区，采用环形缓存区等，本发明实施例不对缓存区的形式进行限定。由于环形缓存区在缓存数据时，不需要预先分配存储位置，而是按照预先确定的存取数据顺序，如顺时针顺序，以及写指针和读指针的位置直接按顺序对数据进行存取，能够实现快速地存取数据，因此，本发明实施例可以优先选择环形缓存区。关于环形缓存区的具体结构，可以参见图3所示的环形缓存区的结构示意图。在图3中，环形缓存区除了具有环形的存储区域外，还包括指向对应存储区域的两个指针。其中，一个是写指针，用于指示缓存区中最后缓存的重复包的存储区域或是缓存区中最后缓存的重复包的存储区域的下一个存储区域。另一个是读指针，用于指示缓存区中当前待读取的重复包的存储区域或是缓存区中当前待读取的重复包的存储区域的上一个存储区域。
将数据包的重复包缓存至缓存区时，可以有多种方式，如果缓存区为环形缓存区，将数据包的重复包缓存至缓存区的方式包括但不限于：判断缓存区是否已满；如果缓存区未满，则在缓存区中已存储的重复包的存储位置之后缓存数据包的重复包。
进一步地，在判断缓存区是否已满时，可以通过检测环形缓存区的读指针与写指针指向的存储区域来判断。例如，如果写指针用于指示缓存区中最后缓存的重复包的存储区域，读指针用于指示当前待读取的重复包的存储区域，此时如果环形缓存区的读指针与写指针指在相邻的存储区域，则判断缓存区已满，否则缓存区未满。由于缓存区已满时，不能再缓存数据包，因此确定将数据包的重复包缓存至缓存区的操作失败；如果缓存区未满，则在缓存区中已存储的 重复包的存储位置之后缓存数据包的重复包即可。
204：间隔第一预设时间后，从缓存区中取出数据包的重复包，并将数据包的重复包发送给客户端。
其中，第一预设时间可以根据实际情况进行设定。例如，该第一预设时间可以为1秒，2秒或3秒等等，本实施例不对第一预设时间进行限定。
另外，间隔第一预设时间后，从缓存区中取出数据包的重复包时，还可以包括判断缓存区是否为空的步骤。如果缓存区为空，则确定从缓存区中取出数据包的重复包的操作失败；如果缓存区不空，则取出指定位置的数据包的重复包。如果缓存区为环形缓存区，则从缓存区中取出数据包的重复包时，可以按照预先设置的存取数据顺序取出读指针所指位置的数据包的重复包或读指针所指位置的下一个存储区域的数据包的重复包。
如果缓存区为环形缓存区，在判断缓存区是否为空时，如果写指针用于指示缓存区中最后缓存的重复包的下一个存储区域，读指针用于指示当前待读取的重复包的存储区域的上一个存储区域，此时可以通过判断读指针和写指针是否指向同一个位置来实现。当读指针和写指针指向同一个位置时，判断缓存区为空，否则，缓存区不空。另外，当缓存区不空时，在取出缓存区中的数据包的重复包时，可以按照预先设置的存取数据顺序依次取出缓存区中数据包的重复包。
由于网络拥堵或网络异常会随着时间有所变化，而客户端的丢包率会随着网络拥堵或网络异常状况的变化而不断变化，因此，将数据包的重复包发送给客户端之后，本实施例提供的方法还可以每隔第三预设时间重新确定客户端对应的丢包率，以根据重新确定的丢包率确定是否继续将发送的下一个数据包的重复包缓存至缓存区。如果重新确定的丢包率仍然超过预设阈值，则仍需要将 发送的下一个数据包的重复包缓存至缓存区；间隔第一预设时间后，从缓存区中取出该发送的下一个数据包的重复包，并将该下一个数据包的重复包发送给客户端。
如果重新确定的客户端对应的丢包率未超过预设阈值，则说明该客户端的丢包情况不是很严重，若再向该客户端发送数据包的重复包，会占用大量的带宽资源，从而造成网络拥堵，因此，在判断重新确定的客户端对应的丢包率未超过预设阈值时，向客户端发送下一个数据包，但不将该下一个数据包的重复包缓存至缓存区。也就是说，在向客户端发送下一个数据包后，不再执行将该下一个数据包的重复包缓存至缓存区，在间隔第一预设时间后从缓存区取出数据包的重复包，并将数据包的重复包发送给客户端的步骤。由此可以减少向客户端发送数据包的重复包的个数，节省了网络带宽资源。
其中，第三预设时间的大小可以根据实际情况进行设定，本发明实施例不对第三预设时间的大小进行具体限定。为了在尽可能短的时间内随时了解客户端对应的丢包率，可以将第三预设时间设置的越小越好，例如，可以将第三预设时间设置为10秒。
本发明实施例提供的方法，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
参见图4，本发明一个示例实施例提供了一种发送数据包的装置，该装置包括：
第一发送模块401，用于向客户端发送数据包；
缓存模块402，用于将数据包的重复包缓存至缓存区；
取出模块403，用于间隔第一预设时间后，从缓存区中取出数据包的重复包；
第二发送模块404，用于将数据包的重复包发送给客户端。
缓存区例如可以为环形缓存区；
缓存模块402，包括：
判断单元，用于判断缓存区是否已满；
缓存单元，用于当缓存区未满时，在缓存区中已存储的重复包的存储位置之后缓存数据包的重复包。
参见图5，该装置例如还可以包括：
确定模块405，用于确定客户端对应的丢包率；
判断模块406，用于判断客户端对应的丢包率是否超过预设阈值。
缓存模块402，在客户端对应的丢包率超过预设阈值时，执行将数据包的重复包缓存至缓存区的步骤。
确定模块405，例如可以包括：
统计单元，用于统计在第二预设时间内接收客户端发送的下行重发请求的次数；
确定单元，用于根据接收下行重发请求的次数及在第二预设时间内发送数据包的总个数确定客户端对应的丢包率。
确定模块405，例如还可以用于每隔第三预设时间重新确定客户端对应的丢包率；
判断模块406，还用于判断重新确定的客户端对应的丢包率是否超过预设阈值；
第一发送模块401，还用于当重新确定的客户端对应的丢包率超过预设阈值 时，向客户端发送下一个数据包；
缓存模块402，还用于将下一个数据包的重复包缓存至缓存区；
取出模块403，还用于间隔第一预设时间后，从缓存区中取出下一个数据包的重复包；
第二发送模块404，还用于将下一个数据包的重复包发送给客户端。
第一发送模块401，例如还可以用于当重新确定的客户端对应的丢包率未超过预设阈值时，向客户端发送下一个数据包；
缓存模块402，还用于当重新确定的客户端对应的丢包率未超过预设阈值时，停止将下一个数据包的重复包缓存至缓存区。
本发明实施例提供的装置，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
本发明一个示例实施例提供了一种网络侧设备，该网络侧设备包括发送数据包的装置。该网络侧设备例如可以是服务器。示例性的网络侧设备(或服务器)例如可以包括处理器、存储介质、监视器、通信模块、数据库、外围设备以及将这些部件连接在一起的一个或多个总线。本领域的技术人员可以理解示例性的网络侧设备(或服务器)可以包括比这里列出的部件更多或更少的部件。
处理器可以包括任意合适的一个或多个处理器。而且处理器可以包括用于多线程或并行处理的多核。存储介质可以包括例如ROM、RAM、闪存、海量存储装置(例如，CD-ROM、U盘以及可移除硬盘等)等存储器模块。存储介质可以存储在处理器上运行时执行各种处理的计算机程序。
监视器可以包括例如用于显示特定用户界面内容的显示装置。外围设备可以包括输入/输出装置，例如键盘和鼠标等。通信模块可以包括用于通过通信网络建立连接的网络设备。数据库可以包括用于存储特定数据并对存储的数据执行特定操作(例如，数据库管理、数据提取和分析等)的一个或多个数据库。
其中，该网络侧设备例如可以包括如上述实施例中提供的发送数据包的装置。具体详见上述实施例的内容，此处不再赘述。
本发明实施例提供的网络侧设备，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
请参考图6，其示出了本发明一个示例实施例所涉及的示例性客户端，即终端600的结构示意图，该终端可以用于实施上述实施例中提供的发送数据包的方法。具体来讲：
终端600可以包括RF(Radio Frequency，射频)电路110、包括有一个或一个以上计算机可读存储介质的存储器120、输入单元130、显示单元140、传感器150、音频电路160、WiFi(Wireless Fidelity，无线保真)模块170、包括有一个或者一个以上处理核心的处理器180、以及电源190等部件。本领域技术人员可以理解，图6中示出的终端结构并不构成对终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。其中：
RF电路110可用于收发信息或通话过程中，信号的接收和发送，特别地，将基站的下行信息接收后，交由一个或者一个以上处理器180处理；另外，将涉及上行的数据发送给基站。通常，RF电路110包括但不限于天线、至少一个 放大器、调谐器、一个或多个振荡器、用户身份模块(SIM)卡、收发信机、耦合器、LNA(Low Noise Amplifier，低噪声放大器)、双工器等。此外，RF电路110还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球移动通讯系统)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、LTE(Long Term Evolution,长期演进)、电子邮件、SMS(Short Messaging Service，短消息服务)等。
存储器120可用于存储软件程序以及模块，处理器180通过运行存储在存储器120的软件程序以及模块，从而执行各种功能应用以及数据处理。存储器120可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据终端600的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地，存储器120还可以包括存储器控制器，以提供处理器180和输入单元130对存储器120的访问。
输入单元130可用于接收输入的数字或字符信息，以及产生与用户设置以及功能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入。具体地，输入单元130可包括触敏表面131以及其他输入设备132。触敏表面131，也称为触摸显示屏或者触控板，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触敏表面131上或在触敏表面131附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触敏表面131 可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器180，并能接收处理器180发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触敏表面131。除了触敏表面131，输入单元130还可以包括其他输入设备132。具体地，其他输入设备132可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元140可用于显示由用户输入的信息或提供给用户的信息以及终端600的各种图形用户接口，这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元140可包括显示面板141，可选的，可以采用LCD(Liquid Crystal Display，液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板141。进一步的，触敏表面131可覆盖显示面板141，当触敏表面131检测到在其上或附近的触摸操作后，传送给处理器180以确定触摸事件的类型，随后处理器180根据触摸事件的类型在显示面板141上提供相应的视觉输出。虽然在图6中，触敏表面131与显示面板141是作为两个独立的部件来实现输入和输入功能，但是在某些实施例中，可以将触敏表面131与显示面板141集成而实现输入和输出功能。
终端600还可包括至少一种传感器150，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板141的亮度，接近传感器可在终端600移动到耳边时，关闭显示面板141和/或背光。作为运动传感器的一种，重力加速度传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可 检测出重力的大小及方向，可用于识别终端姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于终端600还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路160、扬声器161，传声器162可提供用户与终端600之间的音频接口。音频电路160可将接收到的音频数据转换后的电信号，传输到扬声器161，由扬声器161转换为声音信号输出；另一方面，传声器162将收集的声音信号转换为电信号，由音频电路160接收后转换为音频数据，再将音频数据输出处理器180处理后，经RF电路110以发送给比如另一终端，或者将音频数据输出至存储器120以便进一步处理。音频电路160还可能包括耳塞插孔，以提供外设耳机与终端600的通信。
WiFi属于短距离无线传输技术，终端600通过WiFi模块170可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图6示出了WiFi模块170，但是可以理解的是，其并不属于终端600的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
处理器180是终端600的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器120内的软件程序和/或模块，以及调用存储在存储器120内的数据，执行终端600的各种功能和处理数据，从而对终端进行整体监控。可选的，处理器180可包括一个或多个处理核心；处理器180例如可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器180中。
终端600还包括给各个部件供电的电源190(比如电池)，电源例如可以通 过电源管理系统与处理器180逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源190还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管未示出，终端600还可以包括摄像头、蓝牙模块等，在此不再赘述。具体在本实施例中，终端的显示单元是触摸屏显示器，终端还包括有存储器，以及一个或者一个以上的程序，其中一个或者一个以上程序存储于存储器中，且经配置以由一个或者一个以上处理器执行。
本发明一个示例实施例提供了一种计算机可读存储介质，该计算机可读存储介质可以是上述实施例中的存储器中所包含的计算机可读存储介质；也可以是单独存在，未装配入终端中的计算机可读存储介质。该计算机可读存储介质存储有一个或者一个以上程序，该一个或者一个以上程序被一个或者一个以上的处理器用来执行实现发送数据包的方法，该方法包括：
向客户端发送数据包，并将数据包的重复包缓存至缓存区；
间隔第一预设时间后，从缓存区中取出数据包的重复包；
将数据包的重复包发送给客户端。
假设上述为第一种可能的实施方式，则在第一种可能的实施方式作为基础而提供的第二种可能的实施方式中，终端的存储器中，还包含用于执行以下操作的指令：缓存区为环形缓存区；将数据包的重复包缓存至缓存区，包括：
判断缓存区是否已满；
如果缓存区未满，则在缓存区中已存储的重复包的存储位置之后缓存数据包的重复包。
在第一种可能的实施方式作为基础而提供的第三种可能的实施方式中，终 端的存储器中，还包含用于执行以下操作的指令：将数据包的重复包缓存至缓存区之前，还包括：
确定客户端对应的丢包率；
判断客户端对应的丢包率是否超过预设阈值。
如果客户端对应的丢包率超过预设阈值，则执行将数据包的重复包缓存至缓存区的步骤。
在第三种可能的实施方式作为基础而提供的第四种可能的实施方式中，终端的存储器中，还包含用于执行以下操作的指令：确定客户端对应的丢包率，包括：
统计在第二预设时间内接收客户端发送的下行重发请求的次数；
根据接收下行重发请求的次数及在第二预设时间内发送数据包的总个数确定客户端对应的丢包率。
在第三种或第四种可能的实施方式作为基础而提供的第五种可能的实施方式中，终端的存储器中，还包含用于执行以下操作的指令：将数据包的重复包发送给客户端之后，还包括：
每隔第三预设时间重新确定客户端对应的丢包率；
判断重新确定的客户端对应的丢包率是否超过预设阈值；
如果重新确定的客户端对应的丢包率超过预设阈值，则向客户端发送下一个数据包，并将下一个数据包的重复包缓存至缓存区；
间隔第一预设时间后，从缓存区中取出下一个数据包的重复包，并将下一个数据包的重复包发送给客户端。
在第五种可能的实施方式作为基础而提供的第六种可能的实施方式中，终端的存储器中，还包含用于执行以下操作的指令：判断重新确定的客户端对应 的丢包率是否超过预设阈值之后，还包括：
如果重新确定的客户端对应的丢包率未超过预设阈值，则向客户端发送下一个数据包，但不将下一个数据包的重复包缓存至缓存区。
本发明实施例提供的计算机可读存储介质，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
本发明一个示例实施例中提供了一种图形用户接口，该图形用户接口用在网络侧设备上；该图形用户接口包括：
向客户端发送数据包，并将数据包的重复包缓存至缓存区；
间隔第一预设时间后，从缓存区中取出数据包的重复包；
将数据包的重复包发送给客户端。
本发明实施例提供的图形用户接口，通过将数据包的重复包缓存至缓存区，并在间隔第一预设时间后，从缓存区中取出数据包的重复包，将数据包的重复包发送给客户端，实现了将数据包及数据包的重复包分别在不同时间发送给客户端，从而当某一时间段网络异常或网络拥堵时，减少数据包和数据包的重复包同时丢失的情况，进而降低发送数据包的丢包率。
需要说明的是：上述实施例提供的发送数据包的装置在发送数据包时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的发送数据包的装置与发送数据包的方法实施例属于同一构思，其具体实现过程详见方法实施 例，这里不再赘述。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种发送数据包的方法，其特征在于，所述方法包括：
    网络侧设备向客户端发送数据包，并将所述数据包的重复包缓存至缓存区；
    间隔第一预设时间后，所述网络侧设备从所述缓存区中取出所述数据包的重复包；
    所述网络侧设备将所述数据包的重复包发送给所述客户端。
  2. 根据权利要求1所述的方法，其特征在于，所述缓存区为环形缓存区；
    所述将所述数据包的重复包缓存至缓存区，包括：
    判断所述缓存区是否已满；
    如果所述缓存区未满，则在所述缓存区中已存储的重复包的存储位置之后缓存所述数据包的重复包。
  3. 根据权利要求1所述的方法，其特征在于，所述将所述数据包的重复包缓存至缓存区之前，还包括：
    确定所述客户端对应的丢包率；和
    判断所述客户端对应的丢包率是否超过预设阈值，
    其中，如果所述客户端对应的丢包率超过预设阈值，则执行将所述数据包的重复包缓存至缓存区的步骤。
  4. 根据权利要求3所述的方法，其特征在于，所述确定所述客户端对应的丢包率，包括：
    统计在第二预设时间内接收所述客户端发送的下行重发请求的次数；
    根据接收所述下行重发请求的次数及在所述第二预设时间内发送数据包的总个数确定所述客户端对应的丢包率。
  5. 根据权利要求3或4所述的方法，其特征在于，所述将所述数据包的重 复包发送给所述客户端之后，还包括：
    每隔第三预设时间重新确定所述客户端对应的丢包率；
    判断重新确定的所述客户端对应的丢包率是否超过所述预设阈值；
    如果重新确定的所述客户端对应的丢包率超过所述预设阈值，则向所述客户端发送下一个数据包，并将所述下一个数据包的重复包缓存至所述缓存区；
    间隔所述第一预设时间后，从所述缓存区中取出所述下一个数据包的重复包，并将所述下一个数据包的重复包发送给所述客户端。
  6. 根据权利要求5所述的方法，其特征在于，所述判断重新确定的所述客户端对应的丢包率是否超过所述预设阈值之后，还包括：
    如果重新确定的所述客户端对应的丢包率未超过所述预设阈值，则向所述客户端发送下一个数据包，但不将所述下一个数据包的重复包缓存至缓存区。
  7. 一种发送数据包的装置，其特征在于，所述装置包括：
    第一发送模块，用于向客户端发送数据包；
    缓存模块，用于将所述数据包的重复包缓存至缓存区；
    取出模块，用于间隔第一预设时间后，从所述缓存区中取出所述数据包的重复包；
    第二发送模块，用于将所述数据包的重复包发送给所述客户端。
  8. 根据权利要求7所述的装置，其特征在于，所述缓存区为环形缓存区；
    所述缓存模块，包括：
    判断单元，用于判断所述缓存区是否已满；
    缓存单元，用于当所述缓存区未满时，在所述缓存区中已存储的重复包的存储位置之后缓存所述数据包的重复包。
  9. 根据权利要求7所述的装置，其特征在于，所述装置还包括：
    确定模块，用于确定所述客户端对应的丢包率；和
    判断模块，用于判断所述客户端对应的丢包率是否超过预设阈值，
    其中所述缓存模块在所述客户端对应的丢包率超过预设阈值时，执行将所述数据包的重复包缓存至缓存区的步骤。
  10. 根据权利要求9所述的装置，其特征在于，所述确定模块，包括：
    统计单元，用于统计在第二预设时间内接收所述客户端发送的下行重发请求的次数；
    确定单元，用于根据接收所述下行重发请求的次数及在所述第二预设时间内发送数据包的总个数确定所述客户端对应的丢包率。
  11. 根据权利要求9或10所述的装置，其特征在于，所述确定模块，还用于每隔第三预设时间重新确定所述客户端对应的丢包率；
    所述判断模块，还用于判断重新确定的所述客户端对应的丢包率是否超过所述预设阈值；
    所述第一发送模块，还用于当重新确定的所述客户端对应的丢包率超过所述预设阈值时，向所述客户端发送下一个数据包；
    所述缓存模块，还用于将所述下一个数据包的重复包缓存至所述缓存区；
    所述取出模块，还用于间隔所述第一预设时间后，从所述缓存区中取出所述下一个数据包的重复包；
    所述第二发送模块，还用于将所述下一个数据包的重复包发送给所述客户端。
  12. 根据权利要求11所述的装置，其特征在于，所述第一发送模块，还用于当重新确定的所述客户端对应的丢包率未超过所述预设阈值时，向所述客户端发送下一个数据包；
    所述缓存模块，还用于当重新确定的所述客户端对应的丢包率未超过所述预设阈值时不将所述下一个数据包的重复包缓存至缓存区。
  13. 一种网络侧设备，其特征在于，所述网络侧设备包括如权利要求7至12中任一项权利要求所述的发送数据包的装置。
  14. 一种非暂态计算机可读存储介质，该非暂态计算机可读存储介质存储有一个或者一个以上程序，该一个或者一个以上程序被处理器执行时实现权利要求1-6中任一项所述的发送数据包的方法。
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