CN103210625A - Method, device and system for processing TCP service and VoIP service - Google Patents

Method, device and system for processing TCP service and VoIP service Download PDF

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Publication number
CN103210625A
CN103210625A CN2011800018480A CN201180001848A CN103210625A CN 103210625 A CN103210625 A CN 103210625A CN 2011800018480 A CN2011800018480 A CN 2011800018480A CN 201180001848 A CN201180001848 A CN 201180001848A CN 103210625 A CN103210625 A CN 103210625A
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China
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channel
tcp
data bag
mac pdu
voip
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CN2011800018480A
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CN103210625B (en
Inventor
吴伟民
张利
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1013—Network architectures, gateways, control or user entities

Abstract

Disclosed are a method, device and system for processing a Transport Control Protocol (TCP) service and a Voice over Internet Protocol (VoIP) service in a cable TV network. A first device receives a TCP data packet and a VoIP data packet; the first device encapsulates the control information about a channel, the TCP data packet and the VoIP data packet into a Media Access Control Protocol Data Unit (MAC PDU); and the first device sends the MAC PDU to a second device via a reserved channel or broadcast channel. The present invention is suitable for use in cable and radio communication systems with a reserved channel and broadcast channel.

Description

Processing method, equipment and the system of TCP traffic and VoIP business
Processing method, equipment and the systems technology field of TCP traffic and VoIP business
The present invention relates to data communication technology field, the more particularly to processing method of TCP traffic and VoIP business, equipment and system.Background technology
TCP ten does view, and (view is done in Transpor t Control Protocol, transmission control ten）Have become the basic agreement of service interaction in network.In existing TCP acknowledgment mapping techniques, when the transport layer of transmitting terminal does not receive the confirmation from opposite end within the defined time, then think that congestion occurs for network, then transmitting terminal opens jam control function, the handling capacity of TCP traffic is greatly reduced, but the quality and transmission means of TCP feedback link are then seldom considered, TCP acknowledgment bag largely affects the performance of TCP traffic, especially when network load is heavier, may be due to TCP acknowledgment feedback not in time, even if causing TCP traffic not congestion in a network, TCP still can mistake startup congestion control, TCP flow amount is caused to decline.
VoIP (Voice over Internet Protoco l, IP phone）Business is the speech business under current complete IP network framework, in the distribution method of existing VoIP service bandwidths, and UDP agreements are used in transport layer（User Data Protocol, user data>Agreement）, after to sequence of operations such as the compression of analog voice signal, coding, packings, packet is transferred to reception ground by IP network.Feature is that packet is smaller, delay sensitive etc..In full IP network, when multiple business mixing is retransmitted, VoIP business turns into the factor for needing mainly to consider to the characteristic of delay sensitive.
Existing TCP acknowledgment mapping techniques, can only ensure the performance of TCP traffic, when there is the transmission of VoIP mix of traffic, it is impossible to ensure the service quality of VoIP business；The distribution method of existing VoIP service bandwidths, can only ensure the service quality of VoIP business, when there is TCP traffic mixed transport, it is impossible to ensure the performance of TCP traffic.Two schemes can not take into account the performance of TCP traffic and the service quality of VoIP business simultaneously.The content of the invention
Embodiments of the invention provide processing method, equipment and the system of the transmission control protocol TCP business and I P phone VoIP business in a kind of cable TV network, can simultaneously be lifted and passed in cable TV network Transport control protocol discusses TCP traffic performance and ensures IP phone VoIP QoSs.
The technical scheme that the embodiment of the present invention is used for：
A kind of processing method of TCP traffic and VoIP business in cable TV network, including：
First equipment receives TCP data bag and Vo IP packets；
The encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in the protocol Data Unit MAC PDU of media access control by first equipment；
The MAC PDU are sent to the second equipment by first equipment by channel reservation or broadcast channel.
A kind of processing equipment of TCP traffic and Vo I P business in cable TV network, including：
First port, for receiving TCP data bag and VoIP data bag from network side or user terminal；
Package module, for the encapsulating of the control information of channel, the TCP data bag and the VoIP data to be attached in MAC PDU；
Second port, for MAC PDU to be sent into the second equipment by channel reservation or broadcast channel.A kind of processing equipment of TCP traffic and Vo I P business in cable TV network, including：
3rd port, for receiving MAC PDU;
Parsing module, for being parsed to the MAC PDU, obtains control information, TCP data bag and the VoIP data bag of channel.
A kind of processing system of TCP traffic and Vo I P business in cable TV network, including：
First equipment, for receiving TCP data bag and VoIP data bag from network side or user terminal, the encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in MAC PDU, institute ^MAC PDU are sent to by the second equipment by channel reservation or broadcast channel；
Second equipment, for receiving the MAC PDU from network side or user terminal, is parsed to the MAC PDU received, obtains control information, the VoIP data bag and the TCP data bag of the channel.
Processing method, equipment and the system of transmission control protocol TCP business and I P phone VoIP business in cable TV network provided in an embodiment of the present invention, the first equipment receive TCP data bag and VoIP data bag, The encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in MAC PDU by first equipment, and the MAC PDU are sent to the second equipment by first equipment by channel reservation or broadcast channel.Compared with prior art, processing method, equipment and the system of TCP traffic and VoIP business in cable TV network provided in an embodiment of the present invention, the resource of channel reservation and broadcast channel can be made full use of, TCP traffic performance can be lifted simultaneously and ensures VoIP QoSs.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram that the embodiment of the present invention one is provided；
Fig. 2 is the coaxial cable broadband access network schematic diagram that the embodiment of the present invention two is provided；
Fig. 3 is the protocol Data Unit structural representation for the MAC layer that the embodiment of the present invention two is provided；
Fig. 4 is the information unit structure schematic diagram that the embodiment of the present invention two is provided；
Fig. 5 is the method flow diagram that the embodiment of the present invention two is provided；
Fig. 6 is the method flow diagram that the embodiment of the present invention two is provided；
Fig. 7 is the CBAT mapping process schematic diagrames that the embodiment of the present invention two is provided；
Fig. 8 is the device structure schematic diagram that the embodiment of the present invention three is provided；
Fig. 9 is the device structure schematic diagram that the embodiment of the present invention four is provided；
Figure 10 is the system schematic that the embodiment of the present invention five is provided.
Embodiment is below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention. To make the advantage of technical solution of the present invention clearer, the present invention is elaborated with reference to the accompanying drawings and examples.
Embodiment one
The present embodiment provides the TCP traffic in a kind of cable TV network and the processing method of VoIP business, as shown in figure 1, methods described includes：
Step 100, the first equipment receive TCP data bag and VoIP packets from subscriber terminal equipment or network side；
The control information of channel, the TCP data bag and VoIP data bag are encapsulated in the protocol Data Unit of MAC layer (Media Acces s Control Protocol Data Uni t, MAC PDU) by step 102, first equipment according to predetermined priority orders；
The MAC PDU are sent the second equipment by step 104, first equipment by channel reservation or broadcast channel；
Step 106, the second equipment receive institute ^MAC PDU, and the MAC PDU received are parsed, control information, TCP data bag and the VoIP data bag of channel is obtained.
In the present embodiment predetermined priority orders can be according to control information, VoIP data bag, TCP data bag order.
Compared with prior art, the processing method of TCP traffic and VoIP business provided in an embodiment of the present invention, on the premise of not influenceing control signaling to transmit, the resource of channel reservation is made full use of, TCP traffic performance can be lifted simultaneously and ensures Vo I P QoSs.
Embodiment two
For clearer elaboration the present invention program, following examples will be with cable TV network as an example.Fig. 2 is CATV broadband access network structural representation, wherein, coaxial cable broadband access network terminal device (Coaxia l Network Uni t, CNU) and coaxial cable broadband access network local side apparatus（Coaxial Broadband Acces s Termina l, CBAT) between by coaxial cable be connected.
In following examples, will by CNU of the first equipment, the second equipment be CBAT, between CNU and CBAT by cable of cable TV Cable be connected as an example.First equipment can also be CBAT, the second equipment also Can be CNU.Those of ordinary skill in the art can know that the first equipment and the second equipment can also be other equivalent devices, and connection medium therebetween can also be other coaxial cables etc..
Fig. 3 is existing MAC PDU structure, and wherein payload includes one or more information units, and the structure of information unit is as shown in Figure 4.
Specifically, as shown in figure 5, TCP traffic and the up process of the processing method of VoIP business that the present embodiment is provided include step：
Step 500, CNU are after the TCP data bag and VoIP data bag from user is received, the value of service data information unit total length field in information unit, in the IP packet data fields that the up channel control information and the TCP data bag and VoIP data bag are added in information unit by MAC layer according to predetermined priority orders；
Wherein, the control information of the up channel includes：Uplink common signaling, up automatic repeat request (Automat ic Repeat-reQues t, ARQ) signaling and Slow deposit state and report (Buffer S tatus Repor t, BSR) information.
More specifically, in the MAC PDU of a CATV terminal network, preferentially encapsulate the uplink common signaling, the up ARQ signalings and the BSR information are encapsulated again, the value of service data information unit total length field in described information unit, judge whether there is remaining bandwidth resource in described information unit, if there is remaining bandwidth resource in described information unit, the VoIP data bag is first then encapsulated using the remaining bandwidth resource, then encapsulates the TCP data bag.
On packaged type, can first fill up control information in one or more information units, the information unit of remaining bandwidth resource is determined whether again, if so, then the VoIP data bag and TCP data bag are added in the information unit that these have remaining bandwidth resource；If can also be that control information is split into stem portion according to the number of information unit, it is respectively distributed in multiple information units, then judges these information units with the presence or absence of remaining bandwidth if then utilizing these remaining bandwidth Resource Encapsulation VoIP data bags and TCP packets.
The IP grouping numbers in IP packet data fields in step 502, CNU statistics described information units, the value of the IP grouping numbers is added in the IP grouping number fields in described information unit； MAC PDU are sent to CBAT by step 504, CNU by the up channel reservation in Cab le.
Step 506, CBAT MAC layer extract the control information of MAC PDU data frame, and MAC PDU payload is obtained from MAC PDU；
The value of the service data information unit total length field of step 508, CBAT in each information unit in MAC PDU, multiple information units for being used to carry ascending control information are divided into by MAC PDU payload；Step 510, the value of service data information unit total length field in information unit, and the value of the IP grouping number fields in information unit, extract control information, TCP data bag and the Vo I P data bags for the up channel that the IP packet data fields in information unit include.
Specifically, as shown in fig. 6, TCP traffic and the descending process of the processing method of VoIP business that the present embodiment is provided include step：
Step 600, CBAT logical link control layer receive TCP data bag and VoIP data bag from network side, and TCP data bag and VoIP data bag are mapped into MAC layer by multiple independent logic channels；Specific mapping process is as shown in Figure 7.
The control information of down channel, the TCP data bag and VoIP data bag are encapsulated in one or more MAC PDU by step 602, CBAT MAC layer according to predetermined priority orders；
The control information of down channel includes downlink transfer common signaling, descending ARQ signalings etc..
Specific packaged type is consistent with up process, no longer illustrates herein.
Step 604, control information of the CBAT in MAC PDU head addition MAC PDU.
One or more of MAC PDU are sent to CNU by step 606, CBAT MAC layer by the downlink broadcast channel in Cab le;
Step 608, CNU are parsed to one or more of MAC PDU, extract control information, TCP data bag and the VoIP data bag of down channel.
TCP traffic and the processing method of VoIP business that the present embodiment is provided, compared with prior art, on the premise of common signaling and ARQ feedback or BSR information transfers is not influenceed, the resource of up channel reservation and broadcast channel can be made full use of, TCP traffic performance can be lifted simultaneously and ensures VoIP QoSs. Embodiment three
The present embodiment provides the TCP traffic in a kind of cable tv network system and the processing equipment of VoIP business, as shown in figure 8, the equipment includes：
First port 801, for receiving TCP data bag and VoIP data bag from network side or user terminal；
Package module 802, for the encapsulating of the control information of channel, the TCP data bag and the VoIP data to be attached in MAC PDU；
Specifically, the package module can be a central processing unit（Central Processing Unit, CPU), digital signal processor（Digital Signal Processing, DSP), can also be other processing modules etc..
Second port 803, for the MAC PDU to be sent into the second equipment by channel reservation or broadcast channel.
Further, the control information of the channel, the TCP data bag and the VoIP data envelopes are attached in one or more of the payload of MAC PDU information unit by the package module 802, the length specifically for the information unit in the size and payload of the payload according to MAC PDU.
TCP traffic and the processing equipment of VoIP business that the present embodiment is provided, compared with prior art, on the premise of common signaling and ARQ feedback or BSR information transfers is not influenceed, the resource of up channel reservation and broadcast channel can be made full use of, TCP traffic performance can be lifted simultaneously and ensures VoIP QoSs.
Example IV
The present embodiment provides the TCP traffic in a kind of cable tv network system and the processing equipment of VoIP business, as shown in figure 9, the equipment includes：
3rd port 901, for receiving the MAC PDU from the first equipment;
Parsing module 902, for being parsed to institute ^MAC PDU, obtains control information, TCP packets and the VoIP data bag of channel.
Further, the parsing module 902, size specifically for the payload according to MAC PDU and The length of information unit in payload is by the control information of the channel, TCP data bag and VoIP data bag.TCP traffic and the processing equipment of VoIP business that the present embodiment is provided, compared with prior art, on the premise of common signaling and ARQ feedback or BSR information transfers is not influenceed, the resource of up channel reservation and broadcast channel can be made full use of, TCP traffic performance can be lifted simultaneously and ensures VoIP QoSs.
Embodiment five
The present embodiment provides the TCP traffic in a kind of cable tv network system and the processing system of VoIP business, and as shown in Figure 10, the system includes：
First equipment 1001, for receiving TCP data bag and VoIP data bag from network side or user terminal, the encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in MAC PDU, institute ^MAC PDU are sent to by the first equipment by channel reservation or broadcast channel；
Second equipment 1002, for receiving the MAC PDU from the first equipment, is parsed to the MAC PDU received, obtains control information, the VoIP data bag and the TCP data bag of the channel.
The equipment and system of transmission control protocol TCP business and I P phone VoIP business in cable tv network system provided in an embodiment of the present invention can realize the embodiment of the method for above-mentioned offer, concrete function realizes the explanation referred in embodiment of the method, and no longer Redundant is stated herein.Processing method, equipment and the system of transmission control protocol TCP business and IP phone VoIP business in cable tv network system provided in an embodiment of the present invention go in the wired communication system with reserved bandwidth and broadcast channel, but are not limited only to this.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, computer program is can be by instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory（Read-Only Memory, ROM) or random deposit ^ ^ oneself recalls body (Random Access Memory, RAM) etc..
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; the change or replacement that can be readily occurred in, should all be included within the scope of the present invention.Therefore, guarantor of the invention Shield scope should be defined by scope of the claims,

Claims (1)

  1. Claims
    1st, in a kind of cable TV network transmission control protocol TCP business and the processing method of IP phone VoIP business, it is characterised in that including：
    First equipment receives TCP data bag and Vo I P data bags；
    The encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in the protocol Data Unit MAC PDU of media access control by first equipment；
    The MAC PDU are sent to the second equipment by first equipment by channel reservation or broadcast channel.
    2nd, according to the method described in claim 1, it is characterised in that the encapsulating of the control information of channel, the TCP data bag and the Vo I P datas is attached in the protocol Data Unit MAC PDU of media access control by first equipment in MAC layer.
    3rd, according to the method described in claim 1, it is characterised in that the encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in the protocol Data Unit MAC PDU of media access control and specifically included by first equipment：
    The encapsulating of the control information of the channel, the TCP data bag and the VoIP data is attached in one or more of MAC PDU payload information unit by the length of the information unit in the size and payload of MAC PDU payload.
    4th, method according to claim 3, it is characterised in that the encapsulating of the control information of channel, the TCP data bag and the VoIP data is attached in the protocol Data Unit MAC PDU of media access control by first equipment, is specifically included：
    The encapsulating of the control information of the channel, the TCP data bag and the VoIP data is attached in one or more of the payload of MAC PDU information unit by first equipment according to the order of the control information of channel, VoIP data bag and TCP data bag successively. 5th, method according to claim 4, it is characterised in that the control information deposits state including uplink common signaling, up automatic repeat request ARQ signalings and Slow and reports BSR information,
    Then when encapsulating control information, the uplink common signaling is preferentially encapsulated, then encapsulate the up ARQ signalings and the BSR information successively.
    6th, method according to claim 4, it is characterised in that the control information includes downlink transfer common signaling, descending automatic repeat request ARQ signalings,
    Then when encapsulating control information, the downlink transfer common signaling is preferentially encapsulated, then encapsulate the descending ARQ signalings.
    7th, method according to claim 3, specifically included characterized in that, the encapsulating of the control information of the channel, the TCP data bag and the VoIP data is attached in one or more of MAC PDU payload information unit by the length of the information unit in the size and payload of the payload according to MAC PDU：
    The value of service data information unit total length field in information unit, the control information of the channel, the TCP data bag and the VoIP data bag are added in the IP packet data fields in information unit；
    The IP grouping numbers in the IP packet data fields in described information unit are counted, the value of IP grouping numbers is added in the IP grouping number fields in described information unit.
    8th, method according to claim 7, it is characterized in that, specifically included in the value of the service data information unit total length field in information unit, the IP packet data fields that the control information of the channel, the TCP data bag and the VoIP data bag are added in information unit：
    The control information of the channel is added in information unit according to the value of the service data information unit total length field, judge whether there is remaining bandwidth resource in information unit, if so, then encapsulating the VoIP data bag and the TCP data bag successively using the remaining bandwidth resource. 9th, method according to claim 8, it is characterised in that the control information of the channel is added in information unit by the value according to the service data information unit total length field to be specifically included：
    The control information is filled up to one or more information units successively；
    Or
    If the control information is split into stem portion according to the number of information unit, it is distributed in multiple information units.
    10th, in a kind of cable TV network transmission control protocol TCP business and the processing equipment of IP phone VoIP business, it is characterised in that including：
    First port, for receiving TCP data bag and VoIP data bag；
    Package module, for the encapsulating of the control information of channel, the TCP data bag and the VoIP data to be attached in the protocol Data Unit MAC PDU of media access control；
    Second port, for the MAC PDU to be sent into the second equipment by channel reservation or broadcast channel.
    11st, equipment according to claim 10, it is characterized in that, the encapsulating of the control information of the channel, the TCP data bag and the VoIP data is attached in one or more of the payload of MAC PDU information unit by the package module, the length specifically for the information unit in the size and payload of the payload according to MAC PDU.
    12nd, in a kind of cable TV network transmission control protocol TCP business and the processing equipment of IP phone VoIP business, it is characterised in that including：
    3rd port, the protocol Data Unit MAC PDU for receiving media access control;
    Parsing module, for being parsed to the MAC PDU, obtains control information, TCP data bag and the VoIP data bag of channel.
    13rd, in a kind of cable TV network transmission control protocol TCP business and the processing system of IP phone VoIP business, it is characterised in that including： First equipment, for receiving TCP data bag and VoIP data bag, the control information of channel, the TCP packets and the Vo IP data envelopes are attached in the protocol Data Unit MAC PDU of media access control, the MAC PDU are sent to by the second equipment by channel reservation or broadcast channel；
    Second equipment, for receiving the MAC PDU from first equipment, is parsed to the MAC PDU received, obtains control information, the VoIP data bag and the TCP data bag of the channel.
CN201180001848.0A 2011-08-03 2011-08-03 The processing method of TCP business and VoIP business, equipment and system Active CN103210625B (en)

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PCT/CN2011/077970 WO2012109878A1 (en) 2011-08-03 2011-08-03 Method, device and system for processing tcp service and voip service

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* Cited by examiner, † Cited by third party
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CN108650234A (en) * 2018-04-12 2018-10-12 上海交通大学 Communication means based on customized uplink and downlink MAC PDU structures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1411220A (en) * 2001-10-04 2003-04-16 华为技术有限公司 Method and system of realizing IP speech service of private network
CN101616130A (en) * 2008-06-27 2009-12-30 华为技术有限公司 The method of service communication, encapsulation, de-encapsulating devices and system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1411220A (en) * 2001-10-04 2003-04-16 华为技术有限公司 Method and system of realizing IP speech service of private network
CN101616130A (en) * 2008-06-27 2009-12-30 华为技术有限公司 The method of service communication, encapsulation, de-encapsulating devices and system

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