WO2016173155A1 - 一种tcp ack报文处理方法及装置 - Google Patents
一种tcp ack报文处理方法及装置 Download PDFInfo
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- WO2016173155A1 WO2016173155A1 PCT/CN2015/087539 CN2015087539W WO2016173155A1 WO 2016173155 A1 WO2016173155 A1 WO 2016173155A1 CN 2015087539 W CN2015087539 W CN 2015087539W WO 2016173155 A1 WO2016173155 A1 WO 2016173155A1
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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
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- This document relates to, but is not limited to, a wireless communication technology, and more particularly to a Transmission Control Protocol (TCP) response (ACK) message processing method and apparatus.
- TCP Transmission Control Protocol
- ACK Transmission Control Protocol response
- LTE Long Term Evolution
- the bandwidth of the cell under the base station is fixed, but the number of users accessing the cell is not fixed, and the user accessing the cell shares the bandwidth of the cell.
- the number of users accessing the cell is small, the user feels that the Internet response is fast, the download data rate is large, and when the number of users accessing the cell is large, the user's Internet access speed is correspondingly slow.
- any packet is sent as a medium access control MAC Protocol Data Unit (MPDU) when it is physically transmitted, and channel competition and avoidance are required for each transmission, thereby consuming channel resources.
- MPDU Medium access control MAC Protocol Data Unit
- Wireless communication equipment has almost the same processing time for big data packets and small data packets, but since the data volume occupied by large data packets may be several times the data volume occupied by small data packets, the condition for transmitting the same data amount is Under the wireless communication device, the processing time of large data packets is much less than that of small data packets.
- the processing performance of the device can basically be at a relatively good level; but as the traffic volume increases, when the relative threshold is reached, the processing performance will drop sharply, and the processing delay will be obvious. Improve and affect the user experience.
- the embodiment of the invention provides a method and a device for processing a transmission control protocol TCP response ACK message, so as to solve the technical problem of how to improve the processing performance of the wireless device.
- the embodiment of the invention provides a method for processing a TCP ACK packet, and the method may include:
- the data stream to which the current ACK message belongs is obtained;
- the current ACK report is performed according to the data flow to which the current ACK message belongs and the preset merge/distribution processing policy, when the data rate of the ACK packet meets the preset threshold value in the preset statistics period.
- the text is merged/distributed.
- the data rate of the ACK packet meets a preset threshold, including:
- the preset rate threshold VT When the total rate of all types of packets in the statistical period is greater than the preset rate threshold VT, and the ratio of the data rate of the ACK packets to the total rate of all types of packets exceeds the preset threshold threshold RT The data rate of the ACK packet meets a preset threshold.
- the combining/distributing the current ACK message according to the data flow to which the current ACK message belongs and the preset merge/distribution processing policy include:
- the acknowledgment sequence number of the current ACK packet is recorded, and the acknowledgment sequence number of the current ACK packet is used as the current ACK packet.
- the current ACK message is distributed.
- the combining/distributing the current ACK message according to the data flow to which the current ACK message belongs and the preset merge processing policy include:
- the acknowledgment sequence number of the current ACK packet is compared with the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs.
- the current ACK packet is distributed;
- the ACK packet that belongs to the same data stream as the current ACK packet is searched in the buffer area: If the buffer area does not have an ACK message that belongs to the same data stream as the current ACK message, the current ACK message is cached in a buffer area of the data stream to which the ACK message belongs; if the buffer area has And comparing the acknowledgment sequence number of the ACK packet that belongs to the same data stream as the current ACK packet, and the ACK packet that belongs to the same data stream as the current ACK packet, And deleting the current ACK packet and the smaller acknowledgment sequence number between the current ACK packet and the current ACK packet, and confirming that the buffer with a larger sequence number is in a buffer area of the data stream to which the ACK message belongs; And the current ACK message and the current ACK in the buffer area and the buffer area are equal to the acknowledgment sequence number of the ACK message in the buffer area that
- the method further includes: when the current ACK message is distributed, or the current ACK message and the ACK message in the buffer area that belongs to the same data stream as the current ACK message. After being distributed together, when the acknowledgment sequence number of the ACK message that is distributed is greater than the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs, the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs is modified to be distributed. The confirmation number of the ACK message.
- the method further includes: buffering the current ACK message in a buffer area of a data stream to which the current ACK message belongs, or the current ACK message and the current ACK message in the buffer area. After confirming that the cache with the larger sequence number is in the buffer area of the data stream to which it belongs, it is determined whether the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the data stream to which the current ACK packet belongs exceeds Set the confirmation interval threshold GT:
- the merging/distributing process for the current ACK message is directly ended;
- the cached ACK packet is removed from the buffer area. And distributing, and confirming the sequence number attribute of the data stream to which the current ACK message belongs Change to the confirmation number of the ACK message that has been distributed.
- the method further includes: after modifying the confirmation sequence number attribute of the data stream to which the current ACK message belongs to the acknowledgement sequence number of the distributed ACK message, setting a preset timer according to the preset condition. ;
- the ACK report of the data stream to which the current ACK packet is buffered in the buffer area is Distribute
- the acknowledgment sequence attribute of the data stream to which the current ACK message belongs is modified within a preset timer duration, the next ACK corresponding to the data stream to which the current ACK message belongs is buffered in the buffer area. After the message, the preset timer is re-timed;
- the preset timer After the preset timer is set, if the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the current ACK packet is greater than a preset acknowledgement interval threshold GT, the buffered ACK is reported. The text is distributed and the timer is turned off.
- An embodiment of the present invention provides an apparatus for processing a TCP ACK message of a transmission control protocol, where the apparatus includes: a clarifying unit, an obtaining unit, a determining unit, and a merging/distributing processing unit, where
- the confirming unit is configured to confirm that the current application layer data packet is a Transmission Control Protocol (TCP) ACK message, and trigger the acquiring unit after the acknowledgment;
- TCP Transmission Control Protocol
- the acquiring unit is configured to acquire a data flow to which the current ACK packet belongs;
- the determining unit is configured to determine, in a preset statistical period, whether the data rate of the ACK packet meets a preset threshold, and trigger the merge/distribution processing unit when satisfied;
- the merging/distributing processing unit is configured to perform merging/distributing processing on the current ACK message according to the data flow to which the current ACK message belongs and the preset merging/distributing processing policy.
- the determining unit is configured to set the total rate of all types of packets in the statistical period to be greater than a preset rate threshold VT, and the data rate of the ACK packet in the statistical period is for all types of packets.
- the ratio of the total rate exceeds the preset occupancy threshold RT, the data rate of the ACK message satisfies a preset threshold.
- the merge/distribution processing unit is set to:
- the acknowledgment sequence number of the current ACK packet is recorded, and the acknowledgment sequence number is used as the data stream to which the current ACK packet belongs. Confirm serial number attribute;
- the current ACK message is distributed.
- the merge/distribution processing unit is set to:
- the acknowledgment sequence number of the current ACK packet is compared with the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs.
- the current ACK packet is distributed;
- the acknowledgment sequence number of the current ACK packet is equal to the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs, the current ACK packet is distributed;
- the ACK packet that belongs to the same data stream as the current ACK packet is searched in the buffer area: If the buffer area does not have an ACK message that belongs to the same data stream as the current ACK message, the current ACK message is cached in a buffer area of the data stream to which the ACK message belongs; if the buffer area has And comparing the acknowledgment sequence number of the ACK packet that belongs to the same data stream as the current ACK packet, and the ACK packet that belongs to the same data stream as the current ACK packet, And deleting the current ACK packet and the smaller acknowledgment sequence number between the current ACK packet and the current ACK packet, and confirming that the buffer with a larger sequence number is in a buffer area of the data stream to which the ACK message belongs; And the current ACK message and the current ACK in the buffer area and the buffer area are equal to the acknowledgment sequence number of the ACK message in the buffer area that
- the device further includes: a modifying unit, configured to: when the acknowledged sequence number of the ACK packet that is distributed is greater than the acknowledge sequence number attribute of the data stream to which the current ACK packet belongs, the current ACK packet The acknowledgment sequence number attribute of the associated data stream is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- a modifying unit configured to: when the acknowledged sequence number of the ACK packet that is distributed is greater than the acknowledge sequence number attribute of the data stream to which the current ACK packet belongs, the current ACK packet The acknowledgment sequence number attribute of the associated data stream is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- the determining unit is further configured to determine whether a difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the data stream to which the current ACK packet belongs exceeds a preset acknowledgement interval threshold GT. ;
- the merging/distributing processing unit is further configured to directly end the pair if the difference between the acknowledgment sequence number of the buffered ACK packet and the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs is less than GT
- the current ACK message is merged/distributed; or,
- the acknowledged sequence number of the buffered ACK packet is from the cache.
- the area is taken out and distributed and the confirmation sequence number attribute of the data stream to which the current ACK message belongs is modified to the acknowledgement sequence number of the distributed ACK message.
- the device further includes a setting unit configured to set a preset timer according to the preset setting condition;
- the merging/distributing processing unit is further configured to: if the preset timer duration exceeds, and the acknowledgment sequence attribute of the data stream to which the current ACK packet belongs is not modified, the cached area in the buffer area is cached. The ACK packet of the data stream to which the current ACK packet belongs is distributed; or
- the acknowledgment sequence attribute of the data stream to which the current ACK message belongs is modified within a preset timer duration, the next ACK corresponding to the data stream to which the current ACK message belongs is buffered in the buffer area. After the message, reset the preset timer;
- the preset timer After the preset timer is set, if the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the current ACK packet is greater than a preset acknowledgement interval threshold GT, the buffered ACK is reported. The text is distributed and the timer is turned off.
- the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
- the embodiment of the present invention provides a method and a device for processing a TCP ACK packet, which includes: after confirming that the current application layer data packet is a transmission control protocol TCP response ACK message, acquiring a data stream to which the current ACK message belongs; During the preset statistics period, when the data rate of the ACK packet meets the preset threshold, the data stream to which the current ACK packet belongs and the preset merge/minute are The sending processing policy performs a merge/distribution process on the current ACK message.
- the technical solution provided by the embodiment of the invention can reduce the proportion of small data packets in service transmission and improve the performance of service processing.
- FIG. 1 is a schematic flowchart of a method for processing a TCP ACK packet according to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart of confirming that a current application layer data packet is a TCP ACK packet according to an embodiment of the present disclosure
- FIG. 3 is a schematic flowchart of a TCP ACK packet processing according to an embodiment of the present disclosure
- FIG. 4 is a schematic structural diagram of an apparatus for processing a TCP ACK packet according to an embodiment of the present disclosure
- FIG. 5 is a schematic structural diagram of another apparatus for processing TCP ACK packets according to an embodiment of the present invention.
- the ACK packet is the most commonly used small data packet that does not carry a valid payload. Therefore, in the embodiment of the present invention, the TCP ACK packet is combined to enable wireless The number of TCP ACKs sent by the device is doubled. This reduces the amount of data sent by the wireless device and reduces the load on the wireless device. This improves the processing performance of the wireless device.
- a method for processing TCP ACK packet according to an embodiment of the present invention is shown, and the method can be applied to any wireless device that supports TCP/IP protocol and needs to send an ACK packet.
- the method can include:
- step S101 the process of confirming that the current application layer data packet is a TCP ACK packet may be as shown in FIG. 2:
- S201 Parsing the IP header of the application layer data packet, and identifying whether the packet is TCP or non-TCP through the protocol field in the IP header; for the TCP protocol packet, the process goes to S202; for the non-TCP protocol packet, S204;
- S202 determining whether the TCP protocol packet is an ACK packet; for the ACK packet, proceeding to S203; for the non-ACK packet, proceeding to S204;
- each TCP data stream can be assigned a unique number N_x in the wireless device, where x is incremented from 1 to the other.
- the x in the stream number N_x cannot be the same. This number can be used to identify the data stream to which the ACK message belongs.
- the data rate of the ACK packet meets a preset threshold, which may include:
- the current ACK packet can be performed according to the data stream to which the current ACK packet belongs and the preset merge/distribution processing policy. Consolidation/distribution processes this process;
- the total rate of all types of packets in the statistical period is less than the preset rate threshold VT, or the total rate of all types of packets in the statistical period is greater than the preset rate threshold VT but the data of the ACK packet in the statistical period.
- the ACK packet is directly distributed. The subsequent data flow and the default merge/distribution according to the current ACK packet are not required. The process of combining/distributing the current ACK message by the processing policy.
- the current ACK packet is merged/distributed according to the data flow to which the current ACK packet belongs and the preset merge/distribution processing policy, which may include:
- the acknowledgment sequence number of the current ACK packet is recorded, and the acknowledgment sequence number of the current ACK packet is used as the acknowledgment sequence number of the data stream to which the current ACK packet belongs. Attribute; and, to distribute the current ACK message;
- the acknowledgment sequence number of the current ACK packet is compared with the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs; The result of the comparison also differs in the process of merging/distributing the current ACK message, including:
- the current ACK packet When the acknowledgment sequence number of the current ACK packet is smaller than the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs, the current ACK packet can be regarded as an abnormal packet, and therefore, the current ACK packet is directly distributed.
- the current ACK packet can be regarded as a duplicate packet, and the current ACK packet is distributed.
- the current ACK packet can be regarded as a sequence packet, and the ACK corresponding to the current ACK packet belongs to the same data stream.
- Packet If there is no ACK message in the buffer area that belongs to the same data stream as the current ACK message, the current ACK message is buffered in the buffer of the data stream to which it belongs; if the buffer area has the current ACK message The ACK packet belonging to the same data stream compares the current ACK packet with the ACK packet in the buffer area that belongs to the same data stream as the current ACK packet.
- the size of the sequence number is confirmed, and the current ACK message and the acknowledgment sequence number between the current ACK message and the current ACK message are deleted, and the buffer with the larger sequence number is cached in the buffer of the data stream to which it belongs; if the current ACK message is received And the acknowledgment sequence number of the ACK packet in the buffer area that belongs to the same data stream as the current ACK packet is equal, and the current ACK message is distributed together with the ACK message in the buffer area that belongs to the same data stream as the current ACK message.
- the method may further include:
- the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs is modified to the acknowledgment of the ACK message that has been distributed. Serial number.
- the current ACK packet is buffered in the buffer area of the data stream to which it belongs, or the current ACK packet and the buffer with the larger acknowledgment sequence number between the current ACK packet and the current ACK packet are cached in the data stream to which the ACK packet belongs.
- the buffer area it can also include:
- the preset acknowledgment interval threshold GT can be selected.
- the amount of data confirmed by TCP ACK is the same. Set the MSS to be the maximum amount of data (in bytes) that a TCP packet is allowed to carry.
- the ACK message is directly merged/distributed.
- the acknowledged sequence number of the buffered ACK packet is removed from the buffer and distributed.
- the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- the timeout situation may be caused to prevent the ACK message buffered in the buffer area from being sent for a long time.
- the preset timer is set according to the preset condition. It can be understood that the preset condition may be after the first ACK message of the data stream to which the current ACK message belongs is buffered in the buffer area. Moreover, the duration of the timer can be set to a value that has less influence on the TCP delay, for example, 2 ms;
- the ACK report of the data stream to which the current ACK packet is buffered in the buffer area is Distribute
- the acknowledgment sequence attribute of the data stream to which the current ACK message belongs is modified within a preset timer duration, the next ACK corresponding to the data stream to which the current ACK message belongs is buffered in the buffer area. After the message, the preset timer is re-timed;
- the preset timer After the preset timer is set, if the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the current ACK packet is greater than a preset acknowledgement interval threshold GT, the buffered ACK is reported. The text is distributed and the timer is turned off.
- the TCP ACK packet processing method provided by the foregoing embodiment can reduce the number of TCP ACKs sent by the wireless device by multiple times by combining the TCP ACK packets, thereby reducing the amount of data sent by the wireless device.
- the processing load of the wireless device is reduced, thereby improving the processing performance of the wireless device.
- FIG. 3 a specific process of processing a TCP ACK packet according to an embodiment of the present invention is shown.
- the schematic diagram is a description of a specific process of the foregoing embodiment. In this embodiment, the process of processing the TCP ACK packet is not described in detail in this embodiment.
- the specific process of the TCP ACK packet processing includes:
- step S301 corresponds to S101 in the foregoing embodiment
- step S302 corresponds to the data flow to which the current ACK message belongs and the preset merge/distribution processing policy in S102 in the foregoing embodiment.
- the pre-requisites of the current ACK packet are performed in the merging/distributing process. Therefore, the specific implementation process of the S301 and the S302 is described in the foregoing embodiment, and is not described in this embodiment.
- S303 Determine whether the current ACK packet is the first ACK packet in the data stream to which the ACK packet belongs; if yes, record the acknowledgment sequence number CSN of the current ACK packet, and use the acknowledgment sequence number of the current ACK packet as The acknowledgment sequence number attribute P4 of the data stream to which the current ACK message belongs; the current ACK message is distributed, and the process proceeds to S311; if not, S304 is performed;
- S305 Query the ACK message of the same data stream as the current ACK message in the buffer area, if not, go to S308; if found, obtain the ACK message BSN of the ACK message of the same data stream of the current ACK message, And continue to S306;
- S306 Determine the size of the CSN and the BSN: if the CSN is smaller than the BSN, delete the current data packet, and go to S312; if the CSN is equal to the BSN, extract and distribute the buffered ACK of the same data flow as the current ACK packet from the buffer area. The message and the current ACK message are transferred to S311; if the CSN is greater than the BSN, proceed to S307;
- S307 Delete the ACK packet of the same data stream that is buffered in the buffer area and the current ACK packet, and continue to S308;
- S308 save the current data packet into the buffer area, and continue to S309;
- S309 setting the acknowledgment interval threshold GT to TSN, determining the difference between the CSN and the LSN and the size of the TSN, if the difference is less than the TSN, then proceeding to S312; if the difference is greater than the TSN, proceeding to S310;
- S310 The ACK message of the same data stream as the current ACK message is fetched and distributed from the buffer area, and continues to S311;
- S311 When the confirmed sequence number of the distributed message is greater than P4, set the attribute value of P4 to CSN, and continue to S312;
- a timeout which can also include:
- a preset timer is set; it can be understood that the duration of the timer can be preset to have a small impact on the TCP delay. a value, such as 2ms;
- the ACK report of the data stream to which the current ACK packet is buffered in the buffer area is Distribute
- the acknowledgment sequence attribute of the data stream to which the current ACK message belongs is modified within a preset timer duration, the next ACK corresponding to the data stream to which the current ACK message belongs is buffered in the buffer area. After the message, the preset timer is re-timed;
- the preset timer After the preset timer is set, if the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the current ACK packet is greater than a preset acknowledgement interval threshold GT, the buffered ACK is reported. The text is distributed and the timer is turned off.
- the specific process of the TCP ACK packet processing method provided in this embodiment can reduce the number of TCP ACKs sent by the wireless device by multiple times by combining the TCP ACK packets, thereby reducing the amount of data sent by the wireless device. It also reduces the load on the wireless device air interface processing, thereby improving the processing performance of the wireless device.
- the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
- FIG. 4 an apparatus 40 for processing TCP ACK packets according to an embodiment of the present invention is shown, wherein the apparatus 40 includes: Recognition unit 401, acquisition unit 402, determination unit 403, and merge/distribution processing unit 404, wherein
- the confirmation unit 401 is configured to confirm that the current application layer data packet is a Transmission Control Protocol TCP response ACK message, and trigger the acquisition unit 402 after the confirmation;
- the obtaining unit 402 is configured to obtain a data flow to which the current ACK packet belongs.
- the determining unit 403 is configured to determine, in a preset statistical period, whether the data rate of the ACK packet meets a preset threshold, and trigger the merge/distribution processing unit 404 when satisfied;
- the merging/distributing processing unit 404 is configured to perform merging/distributing processing on the current ACK message according to the data stream to which the current ACK message belongs and the preset merging/distributing processing policy.
- the determining unit 403 is configured to set, when the total rate of all types of packets in the statistical period is greater than a preset rate threshold VT, and the ratio of the data rate of the ACK packet in the statistical period to the total rate of all types of packets.
- a preset rate threshold VT When the preset threshold threshold RT is exceeded, the data rate of the ACK packet meets the preset threshold.
- the merge/distribution processing unit 404 is configured to:
- the acknowledgment sequence number of the current ACK packet is recorded, and the acknowledgment sequence number is used as the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs;
- the current ACK message is distributed.
- the merge/distribution processing unit 404 is configured to:
- the acknowledgment sequence number of the current ACK packet is compared with the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs;
- the current ACK packet is distributed;
- the acknowledgment sequence number of the current ACK packet is equal to the acknowledgment sequence number attribute of the data stream to which the current ACK packet belongs, the current ACK packet is distributed;
- the ACK packet that belongs to the same data stream as the current ACK packet is searched in the buffer area: If the buffer area does not have an ACK message that belongs to the same data stream as the current ACK message, the current ACK message is buffered in the buffer area of the data stream to which it belongs; if the buffer area has the same data as the current ACK message The ACK message of the current ACK message compares the acknowledgment sequence number of the ACK message in the current ACK message with the current ACK message in the buffer area, and compares the current ACK message with the current ACK message in the buffer area.
- the acknowledgment sequence number of the ACK message with the same number of the current ACK message is the same as the buffer number of the data stream to which the current ACK message belongs. If the size is equal, the current ACK packet is distributed together with the ACK packet in the buffer area that belongs to the same data stream as the current ACK packet.
- the apparatus 40 further includes: a modifying unit 405, configured to: when the acknowledged sequence number of the ACK message that is distributed is greater than the acknowledge sequence number attribute of the data stream to which the current ACK message belongs, the current ACK message The acknowledgment sequence number attribute of the data stream to which the text belongs is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- a modifying unit 405 configured to: when the acknowledged sequence number of the ACK message that is distributed is greater than the acknowledge sequence number attribute of the data stream to which the current ACK message belongs, the current ACK message The acknowledgment sequence number attribute of the data stream to which the text belongs is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- the determining unit 403 is further configured to determine whether a difference between the acknowledged sequence number of the buffered ACK packet and the acknowledge sequence number attribute of the data stream to which the current ACK packet belongs exceeds a preset acknowledgement interval threshold GT;
- the merging/distributing processing unit 404 is further configured to directly merge the current ACK message if the difference between the acknowledgment sequence number of the ACK message and the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs is less than GT. Distribution processing; or,
- the acknowledged sequence number of the buffered ACK packet is removed from the buffer and distributed.
- the acknowledgment sequence number attribute of the data stream to which the current ACK message belongs is modified to the acknowledgment sequence number of the ACK message that has been distributed.
- the device 40 further includes a setting unit 406 configured to set a preset timer according to a preset setting condition. It can be understood that the data of the current ACK packet is buffered in the buffer area.
- the first ACK packet of the stream can be considered as a preset setting condition;
- the merging/distributing processing unit 404 is further configured to: if the preset timer duration is exceeded, and the acknowledgment sequence attribute of the data stream to which the current ACK packet belongs is not modified, the current ACK packet buffered in the buffer area belongs to The ACK message of the data stream is distributed; or,
- the acknowledgment sequence attribute of the data stream to which the current ACK message belongs is modified within the preset timer duration, the next ACK message that is the same as the data stream to which the current ACK message belongs is cached in the buffer area. , reset the preset timer; and,
- the buffered ACK packet After the preset timer is set, if the difference between the acknowledged sequence number of the buffered ACK packet and the acknowledged sequence number attribute of the current ACK packet is greater than the preset acknowledgement interval threshold GT, the buffered ACK packet is performed. Distribute and close the timer.
- the device 40 for processing TCP ACK packets provided in this embodiment can reduce the number of TCP ACKs sent by the wireless device by multiplying the TCP ACK packets, thereby reducing the amount of data sent by the wireless device.
- the processing load of the wireless device is reduced, thereby improving the processing performance of the wireless device.
- all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
- the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
- each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
- the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
Abstract
一种TCP ACK报文处理方法及装置，该方法包括：在确认当前应用层数据包为传输控制协议TCP应答ACK报文后，获取当前ACK报文所属的数据流；在预设的统计周期内，当ACK报文的数据速率满足预设的门限值时，按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理。
Description
本文涉及但不限于无线通信技术，尤指一种传输控制协议(TCP，Transmission Control Protocol)应答(ACK)报文处理方法及装置。
近年来，随着长期演进(LTE，Long Term Evolution)无线网络的兴起，通过手机等无线设备进行互联网访问的人数越来越多，数据业务量也急剧上升，如何对无线资源进行充分的利用成为设备商、终端厂商关注和研究的课题。
在无线网络中，基站下小区的带宽是固定的，但接入小区的用户数是不固定的，接入小区的用户共享此小区的带宽。当接入小区用户数较少时，用户感受到上网反应快，下载数据速率大，而接入小区用户数较多时，用户上网速度相应的就会变慢。
在数据处理方面，任何一个报文在物理发送时均会被作为一个介质访问控制MAC协议数据单元(MPDU，MAC Protocol Data Unit)发送，而每一次发送都需要信道竞争和避让，从而消耗信道资源。无线通讯设备对大数据包和小数据包的处理时间几乎一致，但是由于大数据包所占的数据量可能是小数据包所占的数据量的数倍，因此，在发送相同数据量的条件下，无线通讯设备对大数据包的处理时间比小数据包要少很多。
一般来说，在业务量较小时，设备的处理性能基本上能处于一个比较好的水平；但随着业务量增大，达到一个相对门限时，处理性能就会急剧下降，处理时延会明显提高，影响用户体验。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求
的保护范围。
本发明实施例提供了一种传输控制协议TCP应答ACK报文处理的方法及装置，以解决如何提高无线设备处理性能的技术问题。
本发明实施例提供了一种TCP ACK报文处理的方法，该方法可以包括：
在确认当前应用层数据包为传输控制协议TCP应答ACK报文后，获取当前ACK报文所属的数据流；
在预设的统计周期内，当ACK报文的数据速率满足预设的门限值时，按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理。
在上述方案中，所述ACK报文的数据速率满足预设的门限值，包括：
当统计周期内所有类型报文的总速率大于预设的速率门限VT，且所述统计周期内ACK报文的数据速率对所有类型报文的总速率的比率超过预设的占比门限RT时，所述ACK报文的数据速率满足预设的门限值。
在上述方案中，所述按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理，包括：
当所述当前ACK报文为其所属的数据流的第一个ACK报文时，记录所述当前ACK报文的确认序号，并将所述当前ACK报文的确认序号作为所述当前ACK报文所属的数据流的确认序号属性；
将所述当前ACK报文进行分发。
在上述方案中，所述按照所述当前ACK报文所属的数据流及预设的合并处理策略对所述当前ACK报文进行合并/分发处理，包括：
当所述当前ACK报文不为其所属的数据流的第一个ACK报文时，将所述当前ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性进行比较；
当所述当前ACK报文的确认序号小于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文进行分发；
当所述当前ACK报文的确认序号等于所述当前ACK报文所属的数据流
的确认序号属性时，则将所述当前ACK报文进行分发；
当所述当前ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，在所述缓存区中查找与所述当前ACK报文属于相同数据流的ACK报文：若所述缓存区中不具有与所述当前ACK报文属于相同数据流的ACK报文，则将所述当前ACK报文缓存在其所属的数据流的缓存区；若所述缓存区中具有与所述当前ACK报文属于相同数据流的ACK报文，则比较所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小，并且将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文一起进行分发。
在上述方案中，所述方法还包括：当所述当前ACK报文进行分发，或者将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文一起分发之后，当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
在上述方案中，所述方法还包括：将所述当前ACK报文缓存在其所属的数据流的缓存区，或者将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较大的缓存在其所属的数据流的缓存区之后，确定已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT：
若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值小于GT，则直接结束所述对所述当前ACK报文进行合并/分发处理；
若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT，则将所述已缓存的ACK报文从所述缓存区中取出并分发，并且将所述当前ACK报文所属的数据流的确认序号属性
修改为已分发的ACK报文的确认序号。
在上述方案中，所述方法还包括：将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号之后，根据预设条件设定预设的定时器；
若预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；
若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，对所述预设的定时器重新进行定时；
在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
本发明实施例提供了一种传输控制协议TCP应答ACK报文处理的装置，所述装置包括：确认单元、获取单元、判定单元和合并/分发处理单元，其中，
所述确认单元，设置为确认当前应用层数据包为传输控制协议TCP应答ACK报文，并且在确认后触发所述获取单元；
所述获取单元，设置为获取当前ACK报文所属的数据流；
所述判定单元，设置为在预设的统计周期内，确定ACK报文的数据速率是否满足预设的门限值，并在满足时触发所述合并/分发处理单元；
所述合并/分发处理单元，设置为按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理。
在上述方案中，所述判定单元，是设置为当统计周期内所有类型报文的总速率大于预设的速率门限VT，且所述统计周期内ACK报文的数据速率对所有类型报文的总速率的比率超过预设的占比门限RT时，所述ACK报文的数据速率满足预设的门限值。
在上述方案中，所述合并/分发处理单元，是设置为：
当所述当前ACK报文为其所属的数据流的第一个ACK报文时，记录所述当前ACK报文的确认序号，并将所述确认序号作为所述当前ACK报文所属的数据流的确认序号属性；以及，
将所述当前ACK报文进行分发。
在上述方案中，所述合并/分发处理单元，是设置为：
当所述当前ACK报文不为其所属的数据流的第一个ACK报文时，将所述当前ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性进行比较；
当所述当前ACK报文的确认序号小于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文进行分发；
当所述当前ACK报文的确认序号等于所述当前ACK报文所属的数据流的确认序号属性时，则将所述当前ACK报文进行分发；
当所述当前ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，在所述缓存区中查找与所述当前ACK报文属于相同数据流的ACK报文：若所述缓存区中不具有与所述当前ACK报文属于相同数据流的ACK报文，则将所述当前ACK报文缓存在其所属的数据流的缓存区；若所述缓存区中具有与所述当前ACK报文属于相同数据流的ACK报文，则比较所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小，并且将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文一起进行分发。
在上述方案中，所述装置还包括：修改单元，设置为当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
在上述方案中，所述判定单元，还设置为确定已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT；
所述合并/分发处理单元，还设置为若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值小于GT时，直接结束所述对所述当前ACK报文进行合并/分发处理；或者，
若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT时，将所述已缓存的ACK报文的确认序号从所述缓存区中取出并分发并且将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
在上述方案中，所述装置还包括设定单元，设置为根据预设的设定条件设定预设的定时器；
所述合并/分发处理单元，还设置为若在预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；或者，
若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，重新设定预设的定时器；
在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。
本发明实施例提供了一种TCP ACK报文处理方法及装置，该方法包括：在确认当前应用层数据包为传输控制协议TCP应答ACK报文后，获取当前ACK报文所属的数据流；在预设的统计周期内，当ACK报文的数据速率满足预设的门限值时，按照所述当前ACK报文所属的数据流及预设的合并/分
发处理策略对所述当前ACK报文进行合并/分发处理。通过本发明实施例提供的技术方案，能够降低小数据包在业务传输中的占比，提升业务处理的性能。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例提供的一种TCP ACK报文处理的方法流程示意图；
图2为本发明实施例提供的确认当前应用层数据包为TCP ACK报文的流程示意图；
图3为本发明实施例提供的一种TCP ACK报文处理的具体流程示意图；
图4为本发明实施例提供的一种TCP ACK报文处理的装置结构示意图；
图5为本发明实施例提供的另一种TCP ACK报文处理的装置结构示意图。
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
考虑到在TCP/IP协议中，ACK报文是最常用的一种不携带有效净荷的小数据报文，因此，本发明实施例中，通过对TCP ACK报文进行合并处理，能够使无线设备发送的TCP ACK数量成倍下降，这样既减少了无线设备空口发送的数据量，又降低了无线设备空口处理的负荷，从而提高了无线设备的处理性能。
参见图1，其示出了本发明实施例提供的一种TCP ACK报文处理的方法，该方法可以应用于任何一种支持TCP/IP协议且需要发送ACK报文的无线设
备中，该方法可以包括：
S101：在确认当前应用层数据包为TCP ACK报文后，获取当前ACK报文所属的数据流；
S102：在预设的统计周期内，当ACK报文的数据速率满足预设的门限值时，按照当前ACK报文所属的数据流及预设的合并/分发处理策略对当前ACK报文进行合并/分发处理。
可选地，对于步骤S101来说，确认当前应用层数据包为TCP ACK报文的流程可以如图2所示：
从协议高层接收应用层数据包之后，
S201：解析应用层数据包的IP头，通过IP头中协议字段识别出是TCP还是非TCP协议的报文；对于TCP协议报文，则转至S202；对于非TCP协议报文，则转至S204；
S202：判断TCP协议报文是否为ACK报文；对于ACK报文，则转至S203；对于非ACK报文，则转至S204；
S203：获取ACK报文所属的数据流，流程结束；
S204：直接分发该应用层数据包，流程结束。
可选地，对于获取ACK报文所属的数据流，可以通过ACK报文的IP头和TCP头中获取得到源IP地址、目的IP地址、源端口号、目的端口号这四个字段，而这四个字段可以唯一确定ACK报文所属的数据流，可选地，在本实施例中，可以在无线设备内为每个TCP数据流分配唯一编号N_x，其中x从1开始依次递增，不同TCP流编号N_x中x不能相同。此编号就能够用于标识ACK报文所属的数据流。
可选地，对于步骤S102来说，ACK报文的数据速率满足预设的门限值，可以包括：
当统计周期内所有类型报文的总速率大于预设的速率门限VT，且统计周期内ACK报文的数据速率与所有类型报文的总速率的比率超过预设的占比门限RT时，ACK报文的数据速率满足预设的门限值，此时可以进行按照当前ACK报文所属的数据流及预设的合并/分发处理策略对当前ACK报文进行
合并/分发处理这一过程；
可以理解地，当统计周期内所有类型报文的总速率小于预设的速率门限VT，或者统计周期内所有类型报文的总速率大于预设的速率门限VT但是统计周期内ACK报文的数据速率与所有类型报文的总速率的比率没有超过预设的占比门限RT时，直接将ACK报文进行分发，无需进行后续的按照当前ACK报文所属的数据流及预设的合并/分发处理策略对当前ACK报文进行合并/分发处理这一过程。
可选地，对于步骤S102来说，按照当前ACK报文所属的数据流及预设的合并/分发处理策略对当前ACK报文进行合并/分发处理，可以包括：
当当前ACK报文为其所属的数据流的第一个ACK报文时，记录当前ACK报文的确认序号，并将当前ACK报文的确认序号作为当前ACK报文所属的数据流的确认序号属性；以及，将当前ACK报文进行分发；
当当前ACK报文不为其所属的数据流的第一个ACK报文时，将当前ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性进行比较；可以理解地，根据比较的结果对当前ACK报文进行合并/分发处理的过程也有所不同，包括：
当当前ACK报文的确认序号小于当前ACK报文所属的数据流的确认序号属性时，当前ACK报文可以认为是异常报文，因此，直接将当前ACK报文进行分发；
当当前ACK报文的确认序号等于当前ACK报文所属的数据流的确认序号属性时，当前ACK报文可以认为是重复报文，则将当前ACK报文进行分发；
当当前ACK报文的确认序号大于当前ACK报文所属的数据流的确认序号属性时，当前ACK报文可以认为是顺序报文，在缓存区中查找与当前ACK报文属于相同数据流的ACK报文：若缓存区中不具有与当前ACK报文属于相同数据流的ACK报文，则将当前ACK报文缓存在其所属的数据流的缓存区；若缓存区中具有与当前ACK报文属于相同数据流的ACK报文，则比较当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文的
确认序号大小，并且将当前ACK报文和缓存区中与当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文一起进行分发。
可选地，当当前ACK报文进行分发，或者将当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文一起分发之后，还可以包括：
当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
可选地，将当前ACK报文缓存在其所属的数据流的缓存区，或者将当前ACK报文和缓存区中与当前ACK报文之间确认序号较大的缓存在其所属的数据流的缓存区之后，还可以包括：
确定已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT：需要说明的是，预设的确认间隔门限GT可以选取两个TCP ACK报文的确认序号之差，为了能够减弱服务器TCP流量的波动幅度，可以使得服务器收到的TCP ACK确认的数据量均匀；因此，尽可能需要使经过合并处理模块分发的每个TCP ACK确认的数据量一致。设定MSS是一个TCP数据包允许携带的最大数据量(单位是字节)，MSS可以在TCP连接建立时获取得到，从而可以以MSS作为最小单位来设置GT，例如：GT＝MSS×(2、3、4……)。例如MSS＝1200，那么GT可以设置为2400、3600、4800等数值；
若已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值小于GT，则直接结束对当前ACK报文进行合并/分发处理；
若已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT，则将已缓存的ACK报文的确认序号从缓存区中取出并分发并且将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
可选地，将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号之后，为了避免缓存区中缓存的ACK报文长时间无法发送从而引起超时的情况发生，还可以包括：
根据预设条件设定预设的定时器；可以理解地，预设条件可以是当缓存区中缓存了当前ACK报文所属的数据流的第一个ACK报文之后。而且定时器的时长可设定为一个对TCP时延影响较小的一个值，例如2ms；
若预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；
若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，对所述预设的定时器重新进行定时；
在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
通过上述实施例提供的TCP ACK报文处理的方法，通过对TCP ACK报文进行合并处理，能够使无线设备发送的TCP ACK数量成倍下降，这样既减少了无线设备空口发送的数据量，又降低了无线设备空口处理的负荷，从而提高了无线设备的处理性能。
基于前述实施例相同的技术构思，参见图3，其示出了本发明实施例提供的一种TCP ACK报文处理的具体流程，该示意图是对上述实施例的具体过程的描述，可以理解地，由于本实施例仅对TCP ACK报文处理进行详细描述，因此，与TCP ACK报文处理的相关过程在本实施例中没有过多的涉及，TCP ACK报文处理的具体流程包括：
S301：从高层接收到应用层数据包之后，解析出数据包的报文类型，并在确认当前应用层数据包为传输控制协议TCP应答ACK报文后，获取当前ACK报文所属的数据流；
S302：在预设的统计周期内，当ACK报文的数据速率满足预设的门限值
时，转至S303；当ACK报文的数据速率不满足预设的门限值时，则将当前ACK报文进行分发并结束本流程；
可选地，步骤S301对应于上述实施例中的S101，步骤S302则对应于上述实施例的S102中的按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理的前提条件，因此，S301和S302的具体实现过程上述实施例中已有描述，本实施例对此不作赘述。
S303：判断当前ACK报文是否为其所属的数据流中的第一个ACK报文；若是，则记录所述当前ACK报文的确认序号CSN，并将所述当前ACK报文的确认序号作为所述当前ACK报文所属的数据流的确认序号属性P4；将所述当前ACK报文进行分发，转入S311；若否，执行S304；
S304：将所述当前ACK报文的确认序号CSN与所述当前ACK报文所属的数据流的确认序号属性P4的属性值LSN进行比较；如果CSN<＝LSN，则将所述当前ACK报文进行分发，并转入S311，如果CSN>LSN，继续S305；
S305：在缓存区查找与当前ACK报文相同数据流的ACK报文，如果找不到，则转入S308；如果找到，则获取当前ACK报文相同数据流的ACK报文的确认序号BSN，并继续S306；
S306：判断CSN与BSN的大小：若CSN小于BSN，则删除当前数据包，并转入S312；若CSN等于BSN，则从缓存区中取出并分发缓存的与当前ACK报文相同数据流的ACK报文及当前ACK报文，转入S311；若CSN大于BSN，则继续S307；
S307：删除缓存区中缓存的与当前ACK报文相同数据流的ACK报文，继续S308；
S308：将当前数据包存入缓存区，继续S309；
S309：设定确认间隔门限GT为TSN，判定CSN与LSN的差值和TSN的大小，若差值小于TSN，则转入S312；若差值大于TSN则继续S310；
S310：从缓存区取出并分发缓存的与当前ACK报文相同数据流的ACK报文，并继续S311；
S311：当已分发的报文的确认序号大于P4时，设置P4的属性值为CSN，并继续S312；
S312：流程结束。
对于上述具体流程，可以理解地，将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号之后，为了避免缓存区中缓存的ACK报文长时间无法发送从而引起超时的情况发生，还可以包括：
当缓存区中缓存了当前ACK报文所属的数据流的第一个ACK报文之后，设定预设的定时器；可以理解地，定时器的时长可预设一个对TCP时延影响较小的一个值，例如2ms；
若预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；
若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，对所述预设的定时器重新进行定时；
在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
本实施例提供的TCP ACK报文处理方法的具体流程，通过对TCP ACK报文进行合并处理，能够使无线设备发送的TCP ACK数量成倍下降，这样既减少了无线设备空口发送的数据量，又降低了无线设备空口处理的负荷，从而提高了无线设备的处理性能。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。
基于前述实施例相同的技术构思，参见图4，其示出了本发明实施例提供的一种TCP ACK报文处理的装置40，其特征在于，所述装置40包括：确
认单元401、获取单元402、判定单元403和合并/分发处理单元404，其中，
确认单元401，设置为确认当前应用层数据包为传输控制协议TCP应答ACK报文，并且在确认后触发获取单元402；
获取单元402，设置为获取当前ACK报文所属的数据流；
判定单元403，设置为在预设的统计周期内，确定ACK报文的数据速率是否满足预设的门限值，并在满足时触发合并/分发处理单元404；
合并/分发处理单元404，设置为按照当前ACK报文所属的数据流及预设的合并/分发处理策略对当前ACK报文进行合并/分发处理。
可选地，判定单元403，是设置为当统计周期内所有类型报文的总速率大于预设的速率门限VT，且统计周期内ACK报文的数据速率对所有类型报文的总速率的比率超过预设的占比门限RT时，ACK报文的数据速率满足预设的门限值。
可选地，合并/分发处理单元404，是设置为：
当当前ACK报文为其所属的数据流的第一个ACK报文时，记录当前ACK报文的确认序号，并将确认序号作为当前ACK报文所属的数据流的确认序号属性；以及，
将当前ACK报文进行分发。
可选地，合并/分发处理单元404，是设置为：
当当前ACK报文不为其所属的数据流的第一个ACK报文时，将当前ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性进行比较；
当当前ACK报文的确认序号小于当前ACK报文所属的数据流的确认序号属性时，将当前ACK报文进行分发；
当当前ACK报文的确认序号等于当前ACK报文所属的数据流的确认序号属性时，则将当前ACK报文进行分发；
当当前ACK报文的确认序号大于当前ACK报文所属的数据流的确认序号属性时，在缓存区中查找与当前ACK报文属于相同数据流的ACK报文：
若缓存区中不具有与当前ACK报文属于相同数据流的ACK报文，则将当前ACK报文缓存在其所属的数据流的缓存区；若缓存区中具有与当前ACK报文属于相同数据流的ACK报文，则比较当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文的确认序号大小，并且将当前ACK报文和缓存区中与当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将当前ACK报文和缓存区中与当前ACK报文属于相同数据流的ACK报文一起进行分发。
可选地，参见图5，装置40还包括：修改单元405，设置为当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
可选地，判定单元403，还设置为确定已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT；
合并/分发处理单元404，还设置为若已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值小于GT时，直接结束对当前ACK报文进行合并/分发处理；或者，
若已缓存的ACK报文的确认序号与当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT时，将已缓存的ACK报文的确认序号从缓存区中取出并分发并且将当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
可选地，参见图5，装置40还包括设定单元406，设置为根据预设的设定条件设定预设的定时器；可以理解的，缓存区中缓存了当前ACK报文所属的数据流的第一个ACK报文，可以认为是一种预设的设定条件；
合并/分发处理单元404，还设置为若在预设的定时器时长超出，且当前ACK报文所属的数据流的确认序号属性没有进行修改时，将缓存区中缓存的当前ACK报文所属的数据流的ACK报文进行分发；或者，
若在预设的定时器时长内，当前ACK报文所属的数据流的确认序号属性进行修改时，在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，重新设定预设的定时器；以及，
在设定预设的定时器之后，若已缓存的ACK报文的确认序号与当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，并且关闭定时器。
本实施例提供的TCP ACK报文处理的装置40，通过对TCP ACK报文进行合并处理，能够使无线设备发送的TCP ACK数量成倍下降，这样既减少了无线设备空口发送的数据量，又降低了无线设备空口处理的负荷，从而提高了无线设备的处理性能。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
通过上述技术方案，能够降低小数据包在业务传输中的占比，提升业务处理的性能。
Claims (15)
- 一种传输控制协议TCP应答ACK报文处理的方法，所述方法包括：在确认当前应用层数据包为TCPACK报文后，获取当前ACK报文所属的数据流；在预设的统计周期内，当ACK报文的数据速率满足预设的门限值时，按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理。
- 根据权利要求1所述的方法，其中，所述ACK报文的数据速率满足预设的门限值，包括：当统计周期内所有类型报文的总速率大于预设的速率门限VT，且所述统计周期内ACK报文的数据速率对所有类型报文的总速率的比率超过预设的占比门限RT时，所述ACK报文的数据速率满足预设的门限值。
- 根据权利要求1所述的方法，其中，所述按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理，包括：当所述当前ACK报文为其所属的数据流的第一个ACK报文时，记录所述当前ACK报文的确认序号，并将所述当前ACK报文的确认序号作为所述当前ACK报文所属的数据流的确认序号属性；将所述当前ACK报文进行分发。
- 根据权利要求1所述的方法，其中，所述按照所述当前ACK报文所属的数据流及预设的合并处理策略对所述当前ACK报文进行合并/分发处理，包括：当所述当前ACK报文不为其所属的数据流的第一个ACK报文时，将所述当前ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性进行比较；当所述当前ACK报文的确认序号小于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文进行分发；当所述当前ACK报文的确认序号等于所述当前ACK报文所属的数据流的确认序号属性时，则将所述当前ACK报文进行分发；当所述当前ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，在所述缓存区中查找与所述当前ACK报文属于相同数据流的ACK报文：若所述缓存区中不具有与所述当前ACK报文属于相同数据流的ACK报文，则将所述当前ACK报文缓存在其所属的数据流的缓存区；若所述缓存区中具有与所述当前ACK报文属于相同数据流的ACK报文，则比较所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小，并且将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文一起进行分发。
- 根据权利要求4所述的方法，所述方法还包括：当所述当前ACK报文进行分发，或者将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文一起分发之后，当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
- 根据权利要求4所述的方法，所述方法还包括：将所述当前ACK报文缓存在其所属的数据流的缓存区，或者将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较大的缓存在其所属的数据流的缓存区之后，确定已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT：若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值小于GT，则直接结束所述对所述当前ACK报文进行合 并/分发处理；若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT，则将所述已缓存的ACK报文从所述缓存区中取出并分发，并且将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
- 根据权利要求5或6所述的方法，所述方法还包括：将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号之后，根据预设条件设定预设的定时器；若预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，对所述预设的定时器重新进行定时；在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
- 一种传输控制协议TCP应答ACK报文处理的装置，所述装置包括：确认单元、获取单元、判定单元和合并/分发处理单元，其中，所述确认单元，设置为确认当前应用层数据包为传输控制协议TCP应答ACK报文，并且在确认后触发所述获取单元；所述获取单元，设置为获取当前ACK报文所属的数据流；所述判定单元，设置为在预设的统计周期内，确定ACK报文的数据速率是否满足预设的门限值，并在满足时触发所述合并/分发处理单元；所述合并/分发处理单元，设置为按照所述当前ACK报文所属的数据流及预设的合并/分发处理策略对所述当前ACK报文进行合并/分发处理。
- 根据权利要求8所述的装置，其中，所述判定单元，是设置为当统计周期内所有类型报文的总速率大于预设的速率门限VT，且所述统计周期内ACK报文的数据速率对所有类型报文的总速率的比率超过预设的占比门限RT时，所述ACK报文的数据速率满足预设的门限值。
- 根据权利要求8所述的装置，其中，所述合并/分发处理单元，是设置为当所述当前ACK报文为其所属的数据流的第一个ACK报文时，记录所述当前ACK报文的确认序号，并将所述确认序号作为所述当前ACK报文所属的数据流的确认序号属性；以及，将所述当前ACK报文进行分发。
- 根据权利要求8所述的装置，其中，所述合并/分发处理单元，是设置为当所述当前ACK报文不为其所属的数据流的第一个ACK报文时，将所述当前ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性进行比较；当所述当前ACK报文的确认序号小于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文进行分发；当所述当前ACK报文的确认序号等于所述当前ACK报文所属的数据流的确认序号属性时，则将所述当前ACK报文进行分发；当所述当前ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，在所述缓存区中查找与所述当前ACK报文属于相同数据流的ACK报文：若所述缓存区中不具有与所述当前ACK报文属于相同数据流的ACK报文，则将所述当前ACK报文缓存在其所属的数据流的缓存区；若所述缓存区中具有与所述当前ACK报文属于相同数据流的ACK报文，则比较所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小，并且将所述当前ACK报文和所述缓存区中与所述当前ACK报文之间确认序号较小的进行删除，确认序号较大的缓存在其所属的数据流的缓存区；若所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文的确认序号大小相等，则将所述当前ACK报文和所述缓存区中与所述当前ACK报文属于相同数据流的ACK报文 一起进行分发。
- 根据权利要求11所述的装置，所述装置还包括：修改单元，设置为当已分发的ACK报文的确认序号大于所述当前ACK报文所属的数据流的确认序号属性时，将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
- 根据权利要求11所述的装置，所述判定单元，还设置为确定已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值是否超过预设的确认间隔门限GT；所述合并/分发处理单元，还设置为若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值小于GT时，直接结束所述对所述当前ACK报文进行合并/分发处理；或者，若已缓存的ACK报文的确认序号与所述当前ACK报文所属的数据流的确认序号属性的差值大于或等于GT时，将所述已缓存的ACK报文的确认序号从所述缓存区中取出并分发并且将所述当前ACK报文所属的数据流的确认序号属性修改为已分发的ACK报文的确认序号。
- 根据权利要求12或13所述的装置，所述装置还包括：设定单元，设置为根据预设的设定条件设定预设的定时器；所述合并/分发处理单元，还设置为若在预设的定时器时长超出，且所述当前ACK报文所属的数据流的确认序号属性没有进行修改时，将所述缓存区中缓存的所述当前ACK报文所属的数据流的ACK报文进行分发；或者，若在预设的定时器时长内，所述当前ACK报文所属的数据流的确认序号属性进行修改时，则在缓存区中缓存下一个与所述当前ACK报文所属的数据流相同的ACK报文后，重新设定预设的定时器；在设定预设的定时器之后，若已缓存的ACK报文的确认序号与所述当前ACK报文的确认序号属性的差值大于预设的确认间隔门限GT，则将已缓存的ACK报文进行分发，以及关闭定时器。
- 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行 指令，所述计算机可执行指令用于执行权利要求1～7中任一项所述的方法。
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