CN104301066A - Data packet transmission method and device - Google Patents
Data packet transmission method and device Download PDFInfo
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- CN104301066A CN104301066A CN201310306110.6A CN201310306110A CN104301066A CN 104301066 A CN104301066 A CN 104301066A CN 201310306110 A CN201310306110 A CN 201310306110A CN 104301066 A CN104301066 A CN 104301066A
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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
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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Abstract
The invention discloses a data packet transmission method and device. The method comprises the steps that a first data packet is received; the data bulk of data packets, which comprise the first data packet, in a caching queue is compared with a set data-bulk threshold; when the data bulk of the data packets in the caching queue is greater than the data-bulk threshold, the data packets in the caching queue are aggregated to generate an aggregated data packet; and the aggregated data packet is transmitted. According to the method and device, the data packets are not transmitted one by one; instead, when the data bulk of the data packets in the caching queue is greater than the data-bulk threshold, the aggregated data packet is transmitted, thereby reducing the possibility of transmission collision of the data packets in the network, reducing transmission time delay of the data packets, and improving the total throughput of the system.
Description
Technical field
The present invention relates to communication technical field, particularly data pack transmission method, device and transmission equipment.
Background technology
WLAN (Wireless Local Area Networks, WLAN) exist in system in a large number by the data packet traffic of wireless network transmissions, particularly small data packets business, such as, in the cloud desktop application of WLAN, the operation of a large amount of mouse and keyboard can generate a large amount of small data packets.The Physical Resource Block of a usual WLAN can transmit the data of a hundreds of byte, and the size of small data packets only has several byte usually to tens bytes, much smaller than the transmittability of a Physical Resource Block.In existing wlan system, each equipment all adopts Carrier Sense Multiple Access/conflict avoidance (Carrier Sense Multiple Access with Collision Avoidance, CSMA/CA) technology, sends packet by the mode of competitive channel.After equipment receives packet, if listen to channel idle, then, after waiting for one section of random time, if it is still idle to listen to channel, then transmit this packet.
Inventor finds in the research process of prior art, when in wlan system, the data packet number of device transmission is larger, when particularly the quantity of small data packets is larger, these packets may make the same time have at least two packets needs to be transmitted by this channel to the competition of channel, thus improve the transmission collision probability of packet, because the transmission collision between packet causes data packet retransmission, thus increase the propagation delay time of packet; And because each small data packets takies whole channel resource with small data quantity, the overall throughput of system also can be caused to decline.
Summary of the invention
Provide data pack transmission method, device and transmission equipment in the embodiment of the present invention, easily increase transmission collision probability and time delay to solve data packet transmission mode of the prior art, cause the problem of overall system throughput degradation.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
First aspect, provides a kind of data pack transmission method, and described method comprises:
Receive the first packet;
The relatively data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises described first packet;
When the data volume that comparative result is packet in described buffer queue is greater than described data-quantity threshold, the packet in described buffer queue is carried out polymerization and generate aggregated data bag;
Transmit described aggregated data bag.
In conjunction with first aspect, in the first possible implementation of first aspect, after described reception first packet, described method also comprises:
Obtain the initial maximum stand-by period of described first packet;
Judge whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet;
When there is not described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period, and according to described first packet of described initial maximum stand-by period transmission, when there is described second packet, perform the described step comparing the data volume of packet and the data-quantity threshold of setting in buffer queue.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, described method also comprises:
When the data volume that comparative result is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, the maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet;
When the maximum latency after described renewal arrives, perform described being carried out by packet in described buffer queue and be polymerized the step generating aggregated data bag.
In conjunction with the first possible implementation of first aspect, or the implementation that the second of first aspect is possible, in the third possible implementation of first aspect, the initial maximum stand-by period of described first packet of described acquisition, comprising:
Obtain service delay and the network delay of the first packet;
The difference of described service delay and described network delay is defined as the initial maximum stand-by period of described first packet.
In conjunction with first aspect, or the first possible implementation of first aspect, or the implementation that the second of first aspect is possible, or the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, describedly compare in buffer queue before the data volume of packet and the data-quantity threshold of setting, described method also comprises:
Detect the transmission conditions value of packet;
When described transmission conditions value exceedes the condition threshold of setting, perform the described step comparing the data volume of packet and the data-quantity threshold of setting in buffer queue; Wherein,
The transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
Second aspect, provide a kind of data packet transmission device, described device comprises:
Receiving element, for receiving the first packet;
Comparing unit, for comparing the data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises the first packet that described receiving element receives;
Polymerized unit, for when the data volume that the comparative result of described comparing unit is packet in described buffer queue is greater than described data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in described buffer queue;
Transmission unit, for transmitting the aggregated data bag that described polymerized unit generates.
In conjunction with second aspect, in the first possible implementation of second aspect, described device also comprises:
Acquiring unit, for obtaining the initial maximum stand-by period of the first packet that described receiving element receives;
Judging unit, for judging whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet;
Setting unit, for when the judged result of described judging unit is not for existing described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period;
Described transmission unit, described first packet of initial maximum stand-by period transmission also for arranging according to described setting unit;
Described comparing unit, specifically for when the judged result of described judging unit is for existing described second packet, compares the data volume of packet and the data-quantity threshold of setting in buffer queue.
In conjunction with the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, described device also comprises:
Updating block, for when the data volume that the comparative result of described comparing unit is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, the maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet;
Described polymerized unit, specifically for when the maximum latency after described updating block upgrades arrives, carries out polymerization and generates aggregated data bag by the packet in described buffer queue.
In conjunction with the first possible implementation of second aspect, or the implementation that the second of second aspect is possible, in the third possible implementation of second aspect, described acquiring unit comprises:
Time delay obtains subelement, for obtaining service delay and the network delay of the first packet;
Time determines subelement, for the difference of described service delay and described network delay being defined as the initial maximum stand-by period of described first packet.
In conjunction with second aspect, or the first possible implementation of second aspect, or the implementation that the second of second aspect is possible, or the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, described device also comprises:
Detecting unit, for detecting the transmission conditions value of packet;
Described comparing unit, specifically for when the transmission conditions value that described detecting unit detects exceedes the condition threshold of setting, compares the data volume of packet and the data-quantity threshold of setting in buffer queue;
Wherein, the transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
The third aspect, provides a kind of transmission equipment, and described transmission equipment comprises: network interface, buffer and processor, wherein,
Described network interface, for receiving packet;
Described buffer, for the packet received by network interface described in buffer queue buffer memory;
Described processor, for after described network interface receives the first packet, the data volume of packet and the data-quantity threshold of setting in more described buffer queue, packet in described buffer queue comprises described first packet, when the data volume that comparative result is packet in described buffer queue is greater than described data-quantity threshold, the packet in described buffer queue is carried out polymerization and generate aggregated data bag;
Described network interface, also for transmitting described aggregated data bag.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described processor, also for obtaining the initial maximum stand-by period of described first packet, judge whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet, when there is not described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period, when there is described second packet, the relatively data volume of packet and the data-quantity threshold of setting in buffer queue,
Described network interface, also for transmitting described first packet according to the described initial maximum stand-by period.
In conjunction with the first possible implementation of the third aspect, in the implementation that the second of the third aspect is possible, described processor, also for when comparative result be the data volume of packet in described buffer queue be not more than described data-quantity threshold time, upgrade the maximum latency of all packets in described buffer queue, maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet, and when the maximum latency after described renewal arrives, packet in described buffer queue is carried out polymerization and generate aggregated data bag.
In conjunction with the first possible implementation of the third aspect, or the implementation that the second of the third aspect is possible, in the third possible implementation of the third aspect, described processor, specifically for obtaining service delay and the network delay of the first packet, the difference of described service delay and described network delay is defined as the initial maximum stand-by period of described first packet.
In conjunction with the third aspect, or the first possible implementation of the third aspect, or the implementation that the second of the third aspect is possible, or the third possible implementation of the third aspect, in the 4th kind of possible implementation of the third aspect, described processor, also for detecting the transmission conditions value of packet, when described transmission conditions value exceedes the condition threshold of setting, compare the data volume of packet and the data-quantity threshold of setting in buffer queue; Wherein,
The transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
In the embodiment of the present invention, after receiving the first packet, the relatively data volume of packet and the data-quantity threshold of setting in buffer queue, packet in buffer queue comprises the first packet and at least one second packet, when the data volume that comparative result is packet in buffer queue is greater than data-quantity threshold, packet in buffer queue is carried out polymerization and generate aggregated data bag, and transmission convergence packet.The application embodiment of the present invention, without the need to transmitting a packet at every turn, but can when in buffer queue, the data volume of packet exceedes data-quantity threshold, the transmission collision probability of packet in network is reduced by transmission convergence packet, reduce the propagation delay time of packet, thus the overall throughput of system can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is an embodiment flow chart of data pack transmission method of the present invention;
Fig. 2 is another embodiment flow chart of data pack transmission method of the present invention;
Fig. 3 is another embodiment flow chart of data pack transmission method of the present invention;
Fig. 4 is an embodiment block diagram of data packet transmission device of the present invention;
Fig. 5 is another embodiment block diagram of data packet transmission device of the present invention;
Fig. 6 is another embodiment block diagram of data packet transmission device of the present invention;
Fig. 7 is the embodiment block diagram of transmission equipment of the present invention.
Embodiment
Technical scheme in the embodiment of the present invention is understood better in order to make those skilled in the art person, and enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage become apparent more, below in conjunction with accompanying drawing, technical scheme in the embodiment of the present invention is described in further detail.
See Fig. 1, an embodiment flow chart for data pack transmission method of the present invention:
Step 101: receive the first packet.
The transmission equipment that the embodiment of the present invention can be applied in wlan system transmits packet, and transmission equipment can comprise various access point (Access Point, AP) equipment, and terminal equipment, such as, and mobile phone, panel computer etc.
In the present embodiment, the first packet that transmission equipment receives can be general data bag, also can be small data packets.It should be noted that, the present embodiment does not limit the occurrence of the data volume of small data packets, can define flexibly according to the actual requirements, such as, define a K byte, packet data volume being not more than to K byte is small data packets, and packet data volume being greater than to K byte is general data bag.
Step 102: compare the data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in this buffer queue comprises this first packet.
In the present embodiment, transmission equipment can arrange maximum latency to the packet received, and when maximum latency does not arrive, these packets are stored in buffer queue awaiting transmission.After transmission equipment receives the first packet, this first packet is added buffer queue, now may also there is the packet do not sent in buffer queue, these packets do not sent can be called the second packet, and the second packet can be one or more.
Transmission equipment statistics buffer queue comprises the first packet and the second packet data volume at interior all packets, and the size between the data volume of comparative statistics and the data-quantity threshold of setting.Wherein, data-quantity threshold can be arranged as required flexibly, such as, can be set to the size of a Physical Resource Block (Physical Resource Block, PRB).
Step 103: when the data volume that comparative result is packet in buffer queue is greater than data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in buffer queue.
In the present embodiment, when in buffer queue, the data volume of packet is greater than data-quantity threshold, even if the maximum latency of these packets does not also reach, these packets also can be carried out polymerization and generate aggregated data bag, to carry out overall transfer to these packets by transmission equipment.The mode of the embodiment of the present invention to polymerization does not limit, and such as, can be polymerized by physically based deformation layer, also can be polymerized based on medium access control (Media Access Control, MAC) layer or application layer.
Step 104: transmit this aggregated data bag.
Compared with prior art, the transmission equipment in the present embodiment, when transmission convergence packet, can pass through a multiple packet of transmission resources for transmitting.
As seen from the above-described embodiment, this embodiment is without the need to transmitting a packet at every turn, but can when in buffer queue, the data volume of packet exceedes data-quantity threshold, the transmission collision probability of packet in network is reduced by transmission convergence packet, reduce the propagation delay time of packet, thus the overall throughput of system can be improved.
See Fig. 2, another embodiment flow chart for data pack transmission method of the present invention:
Step 201: transmission equipment receives the first packet.
In the present embodiment, transmission equipment can comprise various AP equipment, and terminal equipment, such as, and mobile phone, panel computer etc.In the present embodiment, the first packet that transmission equipment receives can be general data bag, also can be small data packets.It should be noted that, the present embodiment does not limit the occurrence of the data volume of small data packets, can define flexibly according to the actual requirements, such as, define a K byte, packet data volume being not more than to K byte is small data packets, and packet data volume being greater than to K byte is general data bag.
Step 202: transmission equipment obtains service delay and the network delay of the first packet.
Wherein, transmission equipment can obtain the service delay of this first packet according to the type of service of the first packet, such as, as voice (the Voice over Internet Protocol that the type of service of the first packet is internet protocol-based, VoIP) during class business, then corresponding service delay is 20ms(millisecond); Transmission equipment conventionally can calculate the network delay of the first packet, repeats no more this embodiment of the present invention.
Step 203: the difference of service delay and network delay is defined as the initial maximum stand-by period of the first packet by transmission equipment.
Step 204: transmission equipment judges whether there is the second packet in buffer queue, if so, then performs step 205; If not, then step 209 is performed.
In the present embodiment, transmission equipment can arrange maximum latency to the packet received, when maximum latency does not arrive, these packets are stored in buffer queue awaiting transmission, therefore in step 201 after transmission equipment receives the first packet, this first packet can be added buffer queue.After the initial maximum stand-by period that the first packet determined by transmission equipment, judge in buffer queue, whether to there is the second packet received.
Step 205: whether the data volume of all packets that transmission equipment judges in buffer queue is greater than the data-quantity threshold of setting, if so, then performs step 208; Otherwise, perform step 206.
When there is the second packet in buffer queue, transmission equipment statistics buffer queue comprises the first packet and the second packet data volume at interior all packets, and the size between the data volume of comparative statistics and the data-quantity threshold of setting.Wherein, data-quantity threshold can be arranged as required flexibly, such as, can be set to the size of a PRB.
Step 206: transmission equipment upgrades the maximum latency of all packets in buffer queue, and the maximum latency after renewal is the smaller value of the remaining time of the initial maximum stand-by period of the first packet and the maximum latency of the second packet.
Because buffer queue comprises the first packet newly received, and already present second packet, wherein the second packet has waited for a period of time in buffer queue, the difference of the maximum latency being therefore the second packet the remaining time of the maximum latency of the second packet and stand-by period.In the present embodiment, transmission equipment needs to carry out polymerization to the multiple packets in buffer queue and sends, when will ensure to send aggregated data bag, due in without any the maximum latency of a packet exceedes the delivery time of this aggregated data bag, therefore transmission equipment is when judging that the data volume of all packets in buffer queue is not more than the data-quantity threshold of setting, transmission equipment selects a smaller value from the remaining time of the maximum latency of initial maximum stand-by period of the first packet and the second packet, this minimum value is updated to the maximum latency of all packets in buffer queue.
Step 207: transmission equipment judges whether the maximum latency after upgrading arrives, and if so, then performs step 208; Otherwise; Return step 207.
Step 208: all packets in buffer queue are carried out polymerization and generate aggregated data bag by transmission equipment, and transmit this aggregated data bag, terminate current process.
When the data volume of all packets that transmission equipment in step 205 judges in buffer queue is greater than the data-quantity threshold of setting, all packets in buffer queue are directly polymerized by transmission equipment, and transmit this aggregated data bag; When transmission equipment in step 207 judges the maximum latency arrival in buffer queue after all packet renewals, then transmission equipment carries out polymerization generation aggregated data bag to all packets, and can pass through this aggregated data bag of transmission resources for transmitting.
The polymerization methods of the embodiment of the present invention to packet does not limit, and such as, can be polymerized by physically based deformation layer, also can be polymerized based on MAC layer or application layer.
Step 209: the maximum latency of the first packet is set to the initial maximum stand-by period by transmission equipment.
Step 210: transmission equipment judges whether the maximum latency of the first packet arrives, if so, then performs step 211; Otherwise, return step 210.
Step 211: transmission equipment transmits this first packet, terminates current process.
When only there being this first packet in buffer queue, then when the maximum latency of the first packet arrives, consistent with prior art, transmission equipment is by this first packet of transmission resources for transmitting.
As seen from the above-described embodiment, this embodiment is without the need to transmitting a packet at every turn, but can when in buffer queue, the data volume of packet exceedes data-quantity threshold, the transmission collision probability of packet in network is reduced by transmission convergence packet, reduce the propagation delay time of packet, thus the overall throughput of system can be improved.
See Fig. 3, another embodiment flow chart for data pack transmission method of the present invention:
Step 301: transmission equipment detects the transmission conditions value of packet.
In the present embodiment, the transmission conditions value of packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.Wherein, when detecting collision probability value, transmission equipment can be added up in the number of times of initiating channel competition in preset time period, the number of times clashed with other transmission equipment, using the number of times clashed with initiate the ratio of number of times of channel competition as collision probability value; In addition, the packet loss of data packet transmission and the busy duty ratio of eating dishes without rice or wine of data packet transmission can adopt mode of the prior art to detect, and repeat no more this embodiment of the present invention.
Step 302: judge whether transmission conditions value exceedes the condition threshold of setting, if so, then performs step 303; Otherwise, perform step 306.
In the present embodiment, condition threshold corresponding to each transmission conditions value can be arranged as required flexibly, and the contrast embodiment of the present invention does not limit.Integrating step 301, when transmission conditions value is the collision probability value of data packet transmission, corresponding condition threshold is collision probability threshold value; When transmission conditions value is the packet loss of data packet transmission, corresponding transmission conditions threshold value is packet loss threshold value; When transmission conditions value be data packet transmission eat dishes without rice or wine busy duty ratio time, corresponding transmission conditions threshold value is duty cycle threshold; When transmission conditions value comprises two or more, then can be respectively each transmission conditions value setting model threshold value respectively, and when each transmission conditions value all exceedes respective condition threshold, just perform step 303.
Step 303: after receiving the first packet, compare the data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in this buffer queue comprises this first packet.
In the present embodiment, the first packet that transmission equipment receives can be general data bag, also can be small data packets.It should be noted that, the present embodiment does not limit the occurrence of the data volume of small data packets, can define flexibly according to the actual requirements.In the present embodiment, transmission equipment can arrange maximum latency to the packet received, and when maximum latency does not arrive, these packets are stored in buffer queue awaiting transmission.After transmission equipment receives the first packet, this first packet is added buffer queue, now may also there is the packet do not sent in buffer queue, these packets do not sent can be called the second packet, and the second packet can be one or more.
Transmission equipment statistics buffer queue comprises the first packet and the second packet data volume at interior all packets, and the size between the data volume of comparative statistics and the data-quantity threshold of setting.Wherein, data-quantity threshold can be arranged as required flexibly, such as, can be set to the size of a PRB.
Step 304: when the data volume that comparative result is packet in buffer queue is greater than data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in buffer queue.
In the present embodiment, when in buffer queue, the data volume of packet is greater than data-quantity threshold, even if the maximum latency of these packets does not also reach, these packets also can be carried out polymerization and generate aggregated data bag, to carry out overall transfer to these packets by transmission equipment.The mode of the embodiment of the present invention to polymerization does not limit, and such as, can be polymerized by physically based deformation layer, also can be polymerized based on MAC layer or application layer.
Step 305: transmit this aggregated data bag, terminates current process.
Step 306: after receiving the first packet, transmits this first packet according to available data bag transmission means, terminates current process.
As seen from the above-described embodiment, this embodiment can compatible existing data packet transmission mode, when the transmission conditions value of packet does not exceed the condition threshold of setting, use existing data packet transmission mode, when the transmission conditions value of packet exceedes the condition threshold of setting, use the data packet transmission mode that the embodiment of the present invention provides, this transmission means is without the need to transmitting a packet at every turn, but can when in buffer queue, the data volume of packet exceedes data-quantity threshold, the transmission collision probability of packet in network is reduced by transmission convergence packet, reduce the propagation delay time of packet, thus the overall throughput of system can be improved.
Corresponding with the embodiment of data pack transmission method of the present invention, present invention also offers the embodiment of data packet transmission device and transmission equipment.
See Fig. 4, an embodiment block diagram for data packet transmission device of the present invention:
This device comprises: receiving element 410, comparing unit 420, polymerized unit 430 and transmission unit 440.
Wherein, receiving element 410, for receiving the first packet;
Comparing unit 420, for comparing the data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises the first packet that described receiving element receives;
Polymerized unit 430, for when the data volume that the comparative result of described comparing unit is packet in described buffer queue is greater than described data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in described buffer queue;
Transmission unit 440, for transmitting the aggregated data bag that described polymerized unit generates.
See Fig. 5, another embodiment block diagram for data packet transmission device of the present invention:
This device comprises: receiving element 510, acquiring unit 520, judging unit 530, setting unit 540, transmission unit 550, comparing unit 560, polymerized unit 570 and updating block 580.
Wherein, receiving element 510, for receiving the first packet;
Acquiring unit 520, for obtaining the initial maximum stand-by period of the first packet that described receiving element 510 receives;
Judging unit 530, for judging whether there is the second packet in buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet;
Setting unit 540, for when the judged result of described judging unit 530 is not for existing described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period;
Transmission unit 550, for described first packet of initial maximum stand-by period transmission arranged according to described setting unit 540;
Comparing unit 560, for when the judged result of described judging unit 530 is for existing described second packet, compares the data volume of packet and the data-quantity threshold of setting in buffer queue;
Updating block 580, for when the data volume that the comparative result of described comparing unit 560 is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, the maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet;
Polymerized unit 570, for when the data volume that the comparative result of described comparing unit 560 is packet in described buffer queue is greater than described data-quantity threshold, packet in described buffer queue is carried out polymerization and generate aggregated data bag, or when the maximum latency after described updating block 580 upgrades arrives, the packet in described buffer queue is carried out polymerization and generate aggregated data bag;
Transmission unit 550, also for transmitting the aggregated data bag that described polymerized unit 570 generates.
Optionally, described acquiring unit 520 can comprise (not shown in Fig. 5):
Time delay obtains subelement, for obtaining service delay and the network delay of the first packet;
Time determines subelement, for the difference of described service delay and described network delay being defined as the initial maximum stand-by period of described first packet.
See Fig. 6, another embodiment block diagram for data packet transmission device of the present invention:
This device comprises: detecting unit 610, receiving element 620, comparing unit 630, polymerized unit 640 and transmission unit 650.
Wherein, detecting unit 610, for detecting the transmission conditions value of packet; Wherein, the transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission;
Receiving element 620, for receiving the first packet;
Comparing unit 630, for when the transmission conditions value that described detecting unit 610 detects exceedes the condition threshold of setting, the relatively data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises the first packet that described receiving element 620 receives;
Polymerized unit 640, for when the data volume that the comparative result of described comparing unit 630 is packet in described buffer queue is greater than described data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in described buffer queue;
Transmission unit 650, for transmitting the aggregated data bag that described polymerized unit 640 generates.
See Fig. 7, the embodiment block diagram for transmission equipment of the present invention:
This transmission equipment comprises: network interface 710, buffer 720 and processor 730.
Wherein, described network interface 710, for receiving packet;
Described buffer 720, for the packet received by network interface described in buffer queue buffer memory;
Described processor 730, for after described network interface 710 receives the first packet, the data volume of packet and the data-quantity threshold of setting in more described buffer queue, packet in described buffer queue comprises described first packet, when the data volume that comparative result is packet in described buffer queue is greater than described data-quantity threshold, the packet in described buffer queue is carried out polymerization and generate aggregated data bag;
Described network interface 710, also for transmitting described aggregated data bag.
In an optional implementation:
Described processor 730, the initial maximum stand-by period obtaining described first packet can also be used for, judge whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet, when there is not described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period, when there is described second packet, compare the data volume of packet and the data-quantity threshold of setting in buffer queue;
Described network interface 710, can also be used for according to described first packet of described initial maximum stand-by period transmission.
In another optional implementation:
Described processor 730, can also be used for when the data volume that comparative result is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet, and when the maximum latency after described renewal arrives, the packet in described buffer queue is carried out polymerization and generate aggregated data bag.
In another optional implementation:
Described processor 730, can specifically for obtaining service delay and the network delay of the first packet, the difference of described service delay and described network delay is defined as the initial maximum stand-by period of described first packet.
In another optional implementation:
Described processor 730, can also be used for the transmission conditions value detecting packet, when described transmission conditions value exceedes the condition threshold of setting, compares the data volume of packet and the data-quantity threshold of setting in buffer queue; Wherein, the transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
As seen from the above-described embodiment, after receiving the first packet in the embodiment of the present invention, the relatively data volume of packet and the data-quantity threshold of setting in buffer queue, packet in buffer queue comprises the first packet, when the data volume that comparative result is packet in buffer queue is greater than data-quantity threshold, packet in buffer queue is carried out polymerization and generate aggregated data bag, and transmission convergence packet.The application embodiment of the present invention, without the need to transmitting a packet at every turn, but can when in buffer queue, the data volume of packet exceedes data-quantity threshold, the transmission collision probability of packet in network is reduced by transmission convergence packet, reduce the propagation delay time of packet, thus the overall throughput of system can be improved.
Those skilled in the art can be well understood to the mode that technology in the embodiment of the present invention can add required general hardware platform by software and realize.Based on such understanding, technical scheme in the embodiment of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or transmission equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for data packet transmission, is characterized in that, described method comprises:
Receive the first packet;
The relatively data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises described first packet;
When the data volume that comparative result is packet in described buffer queue is greater than described data-quantity threshold, the packet in described buffer queue is carried out polymerization and generate aggregated data bag;
Transmit described aggregated data bag.
2. method according to claim 1, is characterized in that, after described reception first packet, described method also comprises:
Obtain the initial maximum stand-by period of described first packet;
Judge whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet;
When there is not described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period, and according to described first packet of described initial maximum stand-by period transmission, when there is described second packet, perform the described step comparing the data volume of packet and the data-quantity threshold of setting in buffer queue.
3. method according to claim 2, is characterized in that, described method also comprises:
When the data volume that comparative result is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, the maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet;
When the maximum latency after described renewal arrives, perform described being carried out by packet in described buffer queue and be polymerized the step generating aggregated data bag.
4. according to the method in claim 2 or 3, it is characterized in that, the initial maximum stand-by period of described first packet of described acquisition, comprising:
Obtain service delay and the network delay of the first packet;
The difference of described service delay and described network delay is defined as the initial maximum stand-by period of described first packet.
5. the method according to Claims 1-4 any one, is characterized in that, describedly compares in buffer queue before the data volume of packet and the data-quantity threshold of setting, and described method also comprises:
Detect the transmission conditions value of packet;
When described transmission conditions value exceedes the condition threshold of setting, perform the described step comparing the data volume of packet and the data-quantity threshold of setting in buffer queue; Wherein,
The transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
6. a data packet transmission device, is characterized in that, described device comprises:
Receiving element, for receiving the first packet;
Comparing unit, for comparing the data volume of packet and the data-quantity threshold of setting in buffer queue, the packet in described buffer queue comprises the first packet that described receiving element receives;
Polymerized unit, for when the data volume that the comparative result of described comparing unit is packet in described buffer queue is greater than described data-quantity threshold, carries out polymerization and generates aggregated data bag by the packet in described buffer queue;
Transmission unit, for transmitting the aggregated data bag that described polymerized unit generates.
7. device according to claim 6, is characterized in that, described device also comprises:
Acquiring unit, for obtaining the initial maximum stand-by period of the first packet that described receiving element receives;
Judging unit, for judging whether there is the second packet in described buffer queue, described second packet is other packets in the packet in described buffer queue except described first packet;
Setting unit, for when the judged result of described judging unit is not for existing described second packet, the maximum latency arranging described first packet is the described initial maximum stand-by period;
Described transmission unit, described first packet of initial maximum stand-by period transmission also for arranging according to described setting unit;
Described comparing unit, specifically for when the judged result of described judging unit is for existing described second packet, compares the data volume of packet and the data-quantity threshold of setting in buffer queue.
8. device according to claim 7, is characterized in that, described device also comprises:
Updating block, for when the data volume that the comparative result of described comparing unit is packet in described buffer queue is not more than described data-quantity threshold, upgrade the maximum latency of all packets in described buffer queue, the maximum latency after renewal is the smaller value in the remaining time of the initial maximum stand-by period of described first packet and the maximum latency of described second packet;
Described polymerized unit, specifically for when the maximum latency after described updating block upgrades arrives, carries out polymerization and generates aggregated data bag by the packet in described buffer queue.
9. the device according to claim 7 or 8, is characterized in that, described acquiring unit comprises:
Time delay obtains subelement, for obtaining service delay and the network delay of the first packet;
Time determines subelement, for the difference of described service delay and described network delay being defined as the initial maximum stand-by period of described first packet.
10. the device according to claim 6 to 9 any one, is characterized in that, described device also comprises:
Detecting unit, for detecting the transmission conditions value of packet;
Described comparing unit, specifically for when the transmission conditions value that described detecting unit detects exceedes the condition threshold of setting, compares the data volume of packet and the data-quantity threshold of setting in buffer queue;
Wherein, the transmission conditions value of described packet comprises at least one following values: the busy duty ratio of eating dishes without rice or wine of the collision probability value of data packet transmission, the packet loss of data packet transmission, data packet transmission.
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| CN201310306110.6A CN104301066A (en) | 2013-07-19 | 2013-07-19 | Data packet transmission method and device |
| PCT/CN2014/073021 WO2015007099A1 (en) | 2013-07-19 | 2014-03-07 | Data packet transmission method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310306110.6A CN104301066A (en) | 2013-07-19 | 2013-07-19 | Data packet transmission method and device |
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