CN103684708A - CES (Circuit Emulation Service) data transmission method, CES data transmission device, CES data receiving method and CES data receiving device - Google Patents
CES (Circuit Emulation Service) data transmission method, CES data transmission device, CES data receiving method and CES data receiving device Download PDFInfo
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Abstract
The invention provides a CES (Circuit Emulation Service) data transmission method, a CES data transmission device, a CES data receiving method and a CES data receiving device. The CES data transmission method includes the following steps: a message sent by a pre-receiving device of a receiving end for indicating the loss of a CES service data packet is received, and includes the packet information of the CES service data packet; the CES service data packet is sent to the pre-receiving device again according to the packet information, and the pre-receiving device sends the received complete CES service data packet to a receiving device of the receiving end. According to the invention, such problems in the related art as high packet loss of a CES service network and low network packet loss processing capacity of equipment are solved, so that the packet loss of the CES service network is reduced and the network packet loss processing capacity of the equipment is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of circuit emulation service (Circuit Emulation Service, referred to as CES) data transmission method for uplink, device and CES data receive method, device.
Background technology
Along with the development of mechanics of communication, next generation network will be mainly be take packet and be carried out network data transmission and exchange as elementary cell, and we are referred to as packet network.But current PDH (Pseudo-synchronous Digital Hierarchy) (Plesiochronous Digital Hierarchy, referred to as PDH)/SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy, referred to as SDH) network also will long-term existence, a large amount of time division multiplexing (Time Division Multiplex that exist on network, referred to as TDM) equipment also can use in a large number, just need in packet network, realize service access and business transparent transmission so for TDM business.
Circuit emulation service (Circuit Emulation Service, referred to as CES) is the technology of carrying traditional tdm data in packet network.Use edge-to-edge pseudo-line simulation (Pseudo Wire Emulation Edge-to-Edge, referred to as PWE3) technology, adopt the mode of circuit simulation, in packet network, for PDH/SDH business data flow provides end to end, transmit.
As shown in Figure 1, CES business is encapsulated as packet at transmitting terminal, by Ethernet, sends to packet network, then is transferred to CES business receiving terminal by packet network.The CES business data packet that sends to packet network is the same with general data bag, whether equipment cannot be distinguished is CES business data packet, when CES business is transmitted in packet network simultaneously, due to network congestion, the a variety of causes such as cable interference can cause packet loss, packet loss can cause error code, the problems such as receiving terminal data are imperfect, cause receiving terminal business to occur mistake, the problems such as alarm, and then business there will be interruption in short-term, the problems such as valid data partial loss, thereby improved the packet loss of CES business network, reduced the disposal ability of equipment to Network Packet Loss.
For above-mentioned problem one of at least in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
The invention provides a kind of CES data transmission method for uplink, device and CES data receive method, device, high at least to solve the packet loss of CES business network in correlation technique, the problem that equipment is low to the disposal ability of Network Packet Loss.
According to an aspect of the present invention, provide a kind of CES data transmission method for uplink, it comprises: receive the message that is used to indicate CES business datum packet loss of the pre-receiving device transmission of receiving terminal, wherein, message comprises the package informatin of CES business data packet; According to package informatin, to pre-receiving device, resend CES business data packet, wherein, pre-receiving device sends to the complete CES business data packet receiving the receiving system of receiving terminal.
Preferably, before the pre-receiving device to receiving terminal sends CES business data packet, above-mentioned CES data transmission method for uplink also comprises: whether in the package informatin of CES packet, add for identifying CES business data packet is the sign of CES business data packet.
Preferably, before the pre-receiving device to receiving terminal sends CES business data packet, above-mentioned CES data transmission method for uplink also comprises: according to preset rules buffer memory CES business data packet, and in the package informatin of CES business data packet, add for characterizing the sequence identification of CES business data packet buffer memory.
Preferably, according to package informatin, to pre-receiving device, resend CES business data packet and comprise: according to the sequence identification in the package informatin of CES business data packet, find the CES business data packet of buffer memory, and retransmit the CES business data packet of buffer memory.
According to another aspect of the present invention, a kind of CES data receive method is provided, it comprises: the pre-receiving device of receiving terminal detects the CES business data packet of loss, and to transmitting terminal, send the message be used to indicate CES business datum packet loss, wherein, message comprises for finding the package informatin of CES business data packet; The CES business data packet that pre-receiving device receiving end/sending end is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of receiving terminal.
Preferably, before the pre-receiving device of receiving terminal detects the CES business data packet of loss, above-mentioned CES data receive method also comprises: pre-receiving device judgement CES business data packet is CES business data packet, wherein, the package informatin of CES business data packet comprises whether for identifying CES business data packet be the sign of CES business data packet.
Preferably, before the pre-receiving device of receiving terminal detects the CES business data packet of loss, above-mentioned CES data receive method also comprises: the CES business data packet that pre-receiving device receives according to preset rules buffer memory, wherein, preset rules is consistent with the rule of transmitting terminal buffer memory CES business data packet to be sent, and the package informatin of the CES business data packet receiving comprises the sequence identification that wraps in the buffer memory of transmitting terminal for characterizing the CES business datum receiving.
Preferably, the CES business data packet that pre-receiving device receiving end/sending end is retransmitted, and send to the receiving system of receiving terminal to comprise the complete CES business data packet of buffer memory: the CES business data packet that pre-receiving device receiving end/sending end is retransmitted, and according to the sequence identification in the package informatin of CES business data packet, CES business data packet is deposited in buffer memory; Pre-receiving device sends to the complete CES business data packet of buffer memory the receiving system of receiving terminal.
According to another aspect of the invention, a kind of CES data sending device is provided, and it comprises: receiver module, for receiving the message that is used to indicate CES business datum packet loss by the pre-receiving device transmission of receiving terminal, wherein, message comprises the package informatin of CES business data packet; Transmission processing module, for resending CES business data packet according to package informatin to pre-receiving device, wherein, pre-receiving device sends to the complete CES business data packet receiving the receiving system of receiving terminal.
According to another aspect of the invention, a kind of CES data sink is provided, it comprises: sending module, for detection of the CES business data packet to there being loss, and to transmitting terminal, send the message be used to indicate CES business datum packet loss, wherein, message comprises for finding the package informatin of CES business data packet; Receiving processing module, the CES business data packet that receiving end/sending end is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of receiving terminal.
In the present invention, the message that is used to indicate CES business datum packet loss sending by receiving the pre-receiving device of receiving terminal, transmitting terminal can be known the situation that has CES business datum packet loss, and to above-mentioned pre-receiving device, resend above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message, so that above-mentioned pre-receiving device can receive complete CES business data packet, and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the transmission CES business data packet of correlation technique;
Fig. 2 is according to the flow chart of the CES data transmission method for uplink of the embodiment of the present invention;
Fig. 3 is according to the flow chart of the CES data receive method of the embodiment of the present invention;
Fig. 4 is according to the structured flowchart of the CES data sending device of the embodiment of the present invention;
Fig. 5 is according to the structured flowchart of the another kind of CES data sending device of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart of the CES data sink of the embodiment of the present invention;
Fig. 7 is according to the structured flowchart of the another kind of CES data sink of the embodiment of the present invention;
Fig. 8 is according to the schematic diagram of the use CES data sending device of the embodiment of the present invention and CES data sink transmission CES business data packet;
Fig. 9 is according to the functional block diagram of the transmission processing module in the CES data sending device of the embodiment of the present invention;
Figure 10 is according to the functional block diagram of the receiving processing module in the CES data receiver of the embodiment of the present invention; And
Figure 11 is according to the flow chart of the use CES data transmission method for uplink of the embodiment of the present invention and CES data receive method transmission CES data.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
The present embodiment provides a kind of CES data transmission method for uplink, and as shown in Figure 2, this CES data transmission method for uplink comprises that step S202 is to step S204.
Step S202: receive the message that is used to indicate CES business datum packet loss of the pre-receiving device transmission of receiving terminal, wherein, message comprises the package informatin of CES business data packet;
Step S204: resend CES business data packet according to package informatin to pre-receiving device, wherein, pre-receiving device sends to the complete CES business data packet receiving the receiving system of receiving terminal.
Pass through above-mentioned steps, the message that is used to indicate CES business datum packet loss sending by receiving the pre-receiving device of receiving terminal, transmitting terminal can be known the situation that has CES business datum packet loss, and to above-mentioned pre-receiving device, resend above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message, so that above-mentioned pre-receiving device can receive complete CES business data packet, and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
In order to judge exactly whether have CES business data packet packet loss, and then the accuracy rate of raising CES business transmission, in this preferred embodiment, before the pre-receiving device to above-mentioned receiving terminal sends above-mentioned CES business data packet, above-mentioned CES data transmission method for uplink also comprises: whether in the package informatin of above-mentioned CES packet, add for identifying CES business data packet is the sign of CES business data packet.Whether in above-mentioned CES business data packet, add for identifying this CES business data packet is the sign of CES business data packet, to can detect exactly while having CES business data packet, and then carry out retransmit operation, thereby contribute to improve the accuracy rate of CES business transmission.
In order to carry out exactly retransmit operation, in this preferred embodiment, before the pre-receiving device to above-mentioned receiving terminal sends above-mentioned CES business data packet, above-mentioned CES data transmission method for uplink also comprises: according to the above-mentioned CES business data packet of preset rules buffer memory, and in the package informatin of above-mentioned CES business data packet, add for characterizing the sequence identification of above-mentioned CES business data packet buffer memory.Above-mentioned CES business data packet is carried out to buffer memory, and in the package informatin of CES business data packet, add for characterizing the sequence identification that this CES business datum wraps in buffer memory, for example, 5 CES business data packet are carried out to buffer memory, buffer memory again after 5 CES business data packet can being numbered in order, numbering can be carried out self-defined according to different application scene, for example, simply 5 CES business data packet are numbered to 0-4, then 5 CES business data packet of buffer memory, and in the package informatin of each CES business data packet, add its corresponding numbering (sequence identification), so that can be according to sequence identification rapidly, in buffer memory, find exactly the CES business data packet that needs repeating transmission.
In order to improve the retransmission efficiency of CES business data packet, in this preferred embodiment, according to above-mentioned package informatin, to above-mentioned pre-receiving device, resending CES business data packet comprises: according to the sequence identification in the package informatin of above-mentioned CES business data packet, find the above-mentioned CES business data packet of buffer memory, and retransmit the CES business data packet of this buffer memory.Realize and according to the sequence identification in the package informatin of above-mentioned CES business data packet, in buffer memory, find rapidly, exactly the above-mentioned CES business data packet that occurs packet loss phenomenon, and retransmit this CES business data packet, to improve the retransmission efficiency of CES business data packet.
A kind of CES data receive method is provided in this preferred embodiment, and as shown in Figure 3, this CES data receive method comprises that step S302 is to step S304.
Step S302: the pre-receiving device of receiving terminal detects the CES business data packet of loss, and to transmitting terminal, send the message that is used to indicate CES business datum packet loss, wherein, message comprises for finding the package informatin of CES business data packet;
Step S304: the CES business data packet that pre-receiving device receiving end/sending end is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of receiving terminal.
Pass through above-mentioned steps, when the pre-receiving device of receiving terminal detects the CES business data packet of loss, to transmitting terminal, send the message that is used to indicate above-mentioned CES business datum packet loss, this message comprises when finding the bag of above-mentioned CES business data packet, to transmitting terminal, send the message that is used to indicate above-mentioned CES business datum packet loss, this message comprises for finding the package informatin of above-mentioned CES business data packet, therefore, transmitting terminal can be known the situation that has CES business datum packet loss, and to above-mentioned pre-receiving device, resend above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message, now above-mentioned pre-receiving device can receive complete CES business data packet, and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
In order to judge exactly whether have CES business data packet packet loss, and then the accuracy rate of raising CES business transmission, in this preferred embodiment, before the pre-receiving device of above-mentioned receiving terminal detects the CES business data packet of loss, above-mentioned CES data receive method also comprises: above-mentioned pre-receiving device judges that above-mentioned CES business data packet is CES business data packet, wherein, the package informatin of CES business data packet comprises whether for identifying CES business data packet be the sign of CES business data packet.Be that above-mentioned pre-receiving device judges whether above-mentioned CES business data packet is CES business data packet, the package informatin of this CES business data packet comprises whether for identifying this CES business data packet be the sign of CES business data packet, to can detect exactly when having CES business data packet, and then carry out retransmit operation, thereby contribute to improve the accuracy rate of CES business transmission.
In order to carry out buffer memory to the CES business data packet of retransmitting exactly, in this preferred embodiment, before the pre-receiving device of above-mentioned receiving terminal detects the CES business data packet of loss, above-mentioned CES data receive method also comprises: the CES business data packet that above-mentioned pre-receiving device receives according to preset rules buffer memory, wherein, this preset rules is consistent with the rule of transmitting terminal buffer memory CES business data packet to be sent, the package informatin of the above-mentioned CES business data packet receiving comprises the sequence identification that wraps in the buffer memory of transmitting terminal for characterizing the above-mentioned CES business datum receiving.Be that pre-receiving device is carried at the package informatin of the CES business data packet of the appearance packet loss phenomenon detecting in above-mentioned message and sends to transmitting terminal, so that transmitting terminal can find above-mentioned CES business data packet to retransmit according to the sequence identification in package informatin in buffer memory, and the CES business data packet receiving according to the consistent preset rules buffer memory of the rule of transmitting terminal buffer memory CES business data packet to be sent, to can the CES business data packet of the repeating transmission receiving be deposited in buffer memory according to the sequence identification in package informatin.
For the complete CES business data packet of buffer memory being sent to the receiving system of receiving terminal, the alarm rate causing due to packet loss to reduce receiving terminal, in this preferred embodiment, above-mentioned pre-receiving device receives the CES business data packet that above-mentioned transmitting terminal is retransmitted, and send to the receiving system of above-mentioned receiving terminal to comprise the complete CES business data packet of buffer memory: the CES business data packet that above-mentioned pre-receiving device receiving end/sending end is retransmitted, and according to the sequence identification in the package informatin of above-mentioned CES business data packet, CES business data packet is deposited in buffer memory; Above-mentioned pre-receiving device sends to the complete CES business data packet of buffer memory the receiving system of above-mentioned receiving terminal.Be above-mentioned pre-receiving device according to the sequence identification in package informatin to the CES business data packet buffer memory of retransmitting, to complete CES business data packet is sent to the receiving system of above-mentioned receiving terminal, to reduce above-mentioned receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting.
This preferred embodiment provides a kind of CES data sending device, as shown in Figure 4, this CES data sending device comprises: receiver module 402, for receiving the message that is used to indicate CES business datum packet loss by the pre-receiving device transmission of receiving terminal, wherein, described message comprises the package informatin of described CES business data packet; Transmission processing module 404, be connected to receiver module 402, for resending described CES business data packet according to described package informatin to described pre-receiving device, wherein, described pre-receiving device sends to the complete CES business data packet receiving the receiving system of described receiving terminal.
In above preferred embodiment, by receiver module 402, receive the message that is used to indicate CES business datum packet loss of the pre-receiving device transmission of receiving terminal, transmitting terminal can be known the situation that has CES business datum packet loss, transmission processing module 404 resends above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message to above-mentioned pre-receiving device, so that above-mentioned pre-receiving device can receive complete CES business data packet, and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
In order to judge exactly whether have CES business data packet packet loss, and then the accuracy rate of raising CES business transmission, in this preferred embodiment, as shown in Figure 5, above-mentioned CES data sending device also comprises: whether mark module 406, for the package informatin at above-mentioned CES packet, adding for identifying above-mentioned CES business data packet is the sign of CES business data packet.
In order to carry out exactly retransmit operation, in this preferred embodiment, as shown in Figure 5, above-mentioned CES data sending device also comprises: the first memory module 408, be used for according to the above-mentioned CES business data packet of preset rules buffer memory, and in the package informatin of above-mentioned CES business data packet, add for characterizing the sequence identification of above-mentioned CES business data packet buffer memory.
In order to improve the retransmission efficiency of CES business data packet, in this preferred embodiment, above-mentioned transmission processing module 404, also for find the above-mentioned CES business data packet of buffer memory according to the sequence identification of the package informatin of above-mentioned CES business data packet, and retransmits the CES business data packet of this buffer memory.
This preferred embodiment provides a kind of CES data sink, as shown in Figure 6, this CES data sink comprises: sending module 602, for detection of the CES business data packet to there being loss, and to transmitting terminal, send the message be used to indicate described CES business datum packet loss, wherein, described message comprises for finding the package informatin of described CES business data packet; Receiving processing module 604, is connected to sending module 602, receives the described CES business data packet that described transmitting terminal is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of described receiving terminal.
In above preferred embodiment, when sending module 602 detects the CES business data packet of loss, to transmitting terminal, send the message that is used to indicate above-mentioned CES business datum packet loss, this message comprises when finding the bag of above-mentioned CES business data packet, to transmitting terminal, send the message that is used to indicate above-mentioned CES business datum packet loss, this message comprises for finding the package informatin of above-mentioned CES business data packet, therefore, transmitting terminal can be known the situation that has CES business datum packet loss, and to above-mentioned pre-receiving device, resend above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message, receiving processing module 604 receives the CES business data packet of above-mentioned repeating transmission, and will receive complete CES business data packet and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
Preferably, above-mentioned CES data sink can be used as the pre-receiving device of receiving terminal, the CES business data packet receiving is detected to the phenomenon that whether has CES business data packet packet loss, and when having CES business data packet packet loss, notify transmitting terminal to retransmit this CES business data packet, thereby can will receive complete CES business data packet and send to the receiving system of above-mentioned receiving terminal, reduce receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting.
In order to judge exactly whether have CES business data packet packet loss, and then the accuracy rate of raising CES business transmission, in this preferred embodiment, as shown in Figure 7, above-mentioned CES data sink also comprises: judge module 606, be used for judging that above-mentioned CES business data packet is CES business data packet, wherein, the package informatin of CES business data packet comprises whether for identifying CES business data packet be the sign of CES business data packet.
In order to carry out buffer memory to the CES business data packet of retransmitting exactly, in this preferred embodiment, as shown in Figure 7, above-mentioned CES data sink also comprises: the second memory module 608, for the CES business data packet receiving according to preset rules buffer memory, wherein, this preset rules is consistent with the rule of transmitting terminal buffer memory CES business data packet to be sent, and the package informatin of the above-mentioned CES business data packet receiving comprises the sequence identification that wraps in the buffer memory of transmitting terminal for characterizing the above-mentioned CES business datum receiving.
For the complete CES business data packet of buffer memory being sent to the receiving system of receiving terminal, the alarm rate causing due to packet loss to reduce receiving terminal, in this preferred embodiment, as shown in Figure 7, above-mentioned receiving processing module 604 comprises: receiving element 6042, the CES business data packet of retransmitting for receiving end/sending end, and according to the sequence identification in the package informatin of above-mentioned CES business data packet, CES business data packet is deposited in buffer memory; Transmitting element 6044, is connected to receiving element 6042, for the complete CES business data packet of buffer memory being sent to the receiving system of above-mentioned receiving terminal.
Below in conjunction with accompanying drawing, above-mentioned each preferred embodiment is described in detail.
Technical problem to be solved by this invention is: overcome the error code causing due to CES business network packet loss that exists in prior art, receive the problems such as data are imperfect, provide a kind of to the processing after CES Network Packet Loss and the method for reissuing bag.
Fig. 8 is according to the schematic diagram of the use CES data sending device of the embodiment of the present invention and CES data sink transmission CES business data packet, as shown in Figure 8, and CES business initiator block 802: for the transmission of CES business; CES business receiving terminal module 812: for the reception of CES business; CES business sends mark module 804(and is equivalent to above-mentioned mark module 406): during transmitting terminal package, CES business data packet is marked; CES business receives identification module 808(and is equivalent to above-mentioned judge module 606): whether when receiving terminal receives packet, detect is CES business data packet; CES packet loss transmission processing module 806(is equivalent to above-mentioned the first memory module 408 and transmission processing module 404): for detection of whether having packet loss to feed back, CES business data packet; CES packet loss receiving processing module 810(is equivalent to above-mentioned the second memory module 608, sending module 602 and receiving processing module 604): for detection of whether having CES business data packet to occur packet loss and feed back to CES packet loss transmission processing module 806, by the cooperation of above-mentioned module, can complete as follows the transmission of CES business data packet:
S1:CES business initiator block 802 is normally worked, business normally sends; When sending mark module 804 encapsulation CES business data packet, CES business stamps CES service marker (whether be equivalent to above-mentioned is the sign of CES business data packet for identifying above-mentioned CES business data packet).
S2:CES packet loss transmission processing module 806 is normally worked, the CES business data packet that buffer memory sends, CES business data packet numbers in order, numbering can be self-defined according to practical application, for example, buffer memory 5 bag CES business data packet, numbering can be 0-4, and will number (being equivalent to said sequence identifies) and be added in the package informatin of CES business data packet.
S3:CES business reception identification module 808 is normally worked, business normally receives, and the mark of stamping according to CES business transmission mark module 804 identifies CES business data packet.
S4:CES packet loss receiving processing module 810 is normally worked, the CES business data packet that buffer memory receives, and packet numbers in order, numbering is with the numbering of the CES business data packet that in CES packet loss transmission processing module 806, storage sends, for example, buffer memory 5 bag CES business data packet, numbering 0-4.
Whether packet loss detection unit in S5:CES packet loss receiving processing module 810 (being equivalent to above-mentioned judge module 606) detects packet loss, if any the numbering m(that loses packet in packet loss record buffer memory, is equivalent to said sequence sign).
In S6:CES packet loss receiving processing module 810, packet loss feedback transmitting element (being equivalent to above-mentioned sending module 602) is lost package number m by the institute of record and is sent to CES packet loss transmission processing module 806.
The institute that S7:CES packet loss transmission processing module 806 detects 810 transmissions of CES packet loss receiving processing module loses after CES business datum packet number m, and the CES business data packet of numbering m in corresponding buffer memory is reissued in the bag unit (being equivalent to above-mentioned transmission processing module 404) reissued in CES packet loss transmission processing module 806.
The CES business data packet of the numbering m that S8:CES packet loss receiving processing module 810 reception CES packet loss transmission processing modules 806 are reissued, m order of living in is put into buffer memory center by the CES business data packet receiving by number.
S9:CES business receiving terminal module 812 is normally worked, CES business normally receives.
In above preferred embodiment, by increase CES business on service board, send mark module 804, CES packet loss transmission processing module 806, CES business reception identification module 804 and CES packet loss receiving processing module 810, for the packet loss problem causing in CES business data packet transmitting procedure, obtained good solution, improve the disposal ability of equipment to Network Packet Loss, reduced CES business network packet loss.
Fig. 9 is according to the functional block diagram of the transmission processing module in the CES data sending device of the embodiment of the present invention, as shown in Figure 9, by the process that above-mentioned transmission processing module sends CES business data packet, comprises the steps:
CES packet loss feedback receiving element 8066(in S1:CES packet loss transmission processing module 806 is equivalent to above-mentioned receiver module 402) detect whether there is packet loss numbering m feedback;
When S2:CES packet loss feedback receiving element 8066 detects the data-bag lost of feedback numbering m, the CES packet loss in CES packet loss transmission processing module 806 is reissued bag unit 8064(and is equivalent to above-mentioned transmission processing module 404) reissue CES packet loss buffer unit 8062(and be equivalent to above-mentioned the first memory module 408) in the institute that is numbered m of buffer memory lose CES business data packet.
Figure 10 is according to the functional block diagram of the receiving processing module in the CES data receiver of the embodiment of the present invention, and as shown in figure 10, the process that receives CES business data packet with above-mentioned receiving processing module comprises the steps:
CES packet loss detection record cell 8102(in S1:CES packet loss receiving processing module 810 is equivalent to above-mentioned sending module 602) detect whether there is CES business datum packet loss, record CES business datum and wrap in the numbering m in buffer memory,
CES packet loss feedback transmitting element 8104(in S2:CES packet loss receiving processing module 810 is equivalent to above-mentioned sending module 602) lost CES business datum packet number m is sent to CES business transmitting terminal.
The CES business data packet m that CES packet loss buffer unit in S3:CES packet loss receiving processing module 810 (being equivalent to above-mentioned receiving processing module 604) receiving end/sending end is reissued.
Figure 11 is that as shown in figure 11, the flow process of this transmission CES data comprises the steps: according to the flow chart of the use CES data transmission method for uplink of the embodiment of the present invention and CES data receive method transmission CES data
S1102:CES business sends mark module 804 and wraps and mark in CES business datum.
S1104:CES business receives identification module 808 and identifies CES business data packet according to mark.
S1106:CES packet loss receiving processing module 810 is normally worked, and detects whether there is CES business datum packet loss, if so, goes to step S1108, if not, goes to step S1116.
CES packet loss detection record cell in S1108:CES packet loss receiving processing module 810 has detected CES business data packet packet loss and has recorded this CES business datum packet number.
CES packet loss feedback transmitting element in S1110:CES packet loss receiving processing module 810 sends packet loss and numbers to CES packet loss transmission processing module 806.
CES packet loss feedback receiving element in S1112:CES packet loss transmission processing module 806 receives CES packet loss feedback transmitting element and sends packet loss numbering.
CES packet loss in S1114:CES packet loss transmission processing module 806 is reissued the CES business data packet that loss is reissued in bag unit.
The normal data that receive of S1116:CES business receiving terminal module 812.
From above description, can find out, above preferred embodiment has realized following technique effect: the message that is used to indicate CES business datum packet loss sending by receiving the pre-receiving device of receiving terminal, transmitting terminal can be known the situation that has CES business datum packet loss, and to above-mentioned pre-receiving device, resend above-mentioned CES business data packet according to the package informatin of the above-mentioned CES business data packet of carrying in above-mentioned message, so that above-mentioned pre-receiving device can receive complete CES business data packet, and send to the receiving system of receiving terminal, even if therefore realized and had the phenomenon of losing CES business data packet, also can be by the notice of above-mentioned message, transmitting terminal resends the CES business data packet of loss, so that pre-receiving device can receive complete CES business data packet, and then the CES business data packet that the receiving system of having realized receiving terminal receives is all the time all complete, the receiving system that has reduced receiving terminal detects the probability of CES business data packet packet loss, reduced receiving terminal because CES business data packet packet loss causes service alarm, the temporary transient probability interrupting, thereby reduced the packet loss of CES business network, improved the disposal ability of equipment to Network Packet Loss.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a circuit emulation service CES data transmission method for uplink, is characterized in that, comprising:
The message that is used to indicate CES business datum packet loss that receives the pre-receiving device transmission of receiving terminal, wherein, described message comprises the package informatin of described CES business data packet;
According to described package informatin, to described pre-receiving device, resend described CES business data packet, wherein, described pre-receiving device sends to the complete CES business data packet receiving the receiving system of described receiving terminal.
2. method according to claim 1, is characterized in that, before the pre-receiving device to described receiving terminal sends described CES business data packet, also comprises:
Whether in the package informatin of described CES packet, add for identifying described CES business data packet is the sign of CES business data packet.
3. method according to claim 1 and 2, is characterized in that, before the pre-receiving device to described receiving terminal sends described CES business data packet, also comprises:
According to CES business data packet described in preset rules buffer memory, and in the package informatin of described CES business data packet, add for characterizing the sequence identification of described CES business data packet buffer memory.
4. method according to claim 3, is characterized in that, resends described CES business data packet comprise according to described package informatin to described pre-receiving device:
According to the sequence identification in the package informatin of described CES business data packet, find the described CES business data packet of buffer memory, and retransmit the described CES business data packet of buffer memory.
5. a circuit emulation service CES data receive method, is characterized in that, comprising:
The pre-receiving device of receiving terminal detects the CES business data packet of loss, and sends to transmitting terminal the message that is used to indicate described CES business datum packet loss, and wherein, described message comprises for finding the package informatin of described CES business data packet;
Described pre-receiving device receives the described CES business data packet that described transmitting terminal is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of described receiving terminal.
6. method according to claim 5, is characterized in that, before the pre-receiving device of described receiving terminal detects the CES business data packet of loss, also comprises:
Described pre-receiving device judges that described CES business data packet is CES business data packet, and wherein, the package informatin of described CES business data packet comprises whether for identifying described CES business data packet be the sign of CES business data packet.
7. method according to claim 6, is characterized in that, before the pre-receiving device of described receiving terminal detects the CES business data packet of loss, also comprises:
The CES business data packet that described pre-receiving device receives according to preset rules buffer memory, wherein, described preset rules is consistent with the rule of transmitting terminal buffer memory CES business data packet to be sent, described in the package informatin of the CES business data packet that receives comprise that the CES business datum for receiving described in characterizing wraps in the sequence identification of the buffer memory of described transmitting terminal.
8. method according to claim 7, is characterized in that, described pre-receiving device receives the described CES business data packet that described transmitting terminal is retransmitted, and sends to the receiving system of described receiving terminal to comprise the complete CES business data packet of buffer memory:
Described pre-receiving device receives the described CES business data packet that described transmitting terminal is retransmitted, and according to the sequence identification in the package informatin of described CES business data packet, described CES business data packet is deposited in buffer memory;
Described pre-receiving device sends to the complete CES business data packet of buffer memory the receiving system of described receiving terminal.
9. a circuit emulation service CES data sending device, is characterized in that, comprising:
Receiver module, for receiving the message that is used to indicate CES business datum packet loss by the pre-receiving device transmission of receiving terminal, wherein, described message comprises the package informatin of described CES business data packet;
Transmission processing module, for resending described CES business data packet according to described package informatin to described pre-receiving device, wherein, described pre-receiving device sends to the complete CES business data packet receiving the receiving system of described receiving terminal.
10. a circuit emulation service CES data sink, is characterized in that, comprising:
Sending module, for detection of the CES business data packet to there being loss, and sends the message that is used to indicate described CES business datum packet loss to transmitting terminal, wherein, described message comprises for finding the package informatin of described CES business data packet;
Receiving processing module, receives the described CES business data packet that described transmitting terminal is retransmitted, and the complete CES business data packet of buffer memory is sent to the receiving system of described receiving terminal.
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