CN101848492A - Message transmission method between media gateways, media gateway and wireless communication system - Google Patents
Message transmission method between media gateways, media gateway and wireless communication system Download PDFInfo
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Abstract
The invention discloses a message transmission method between media gateways, a media gateway and a wireless communication system, and the method comprises the following steps: receiving a real-time transport control protocol (RTCP) multiplex negotiation message from the media gateway of an opposite terminal by the media gateway at a home terminal, wherein the RTCP multiplex negotiation message carries compressed format indication information of a real-time transport protocol (RTP) head selected by the media gateway at the opposite terminal; and transmitting an RTP multiplex message to the media gateway at the opposite terminal by the media gateway at the home terminal, wherein the RTP compression head of the RTP multiplex message adopts the compression format corresponding to the compression format indication information. By the invention, the problems of poor flexibility and expansibility of a mode for determining the RTP head compression format are solved, thus being favor of compressing the RTP head and saving bandwidth.
Description
Technical field
The present invention relates to the communications field, in particular to message transmitting method, media gateway and the wireless communication system between a kind of media gateway.
Background technology
The 3GPP of International Standards Organization (3rd Generation Partnership Project, the 3rd generation partner program) is responsible for the formulation and the modification of WCDMA (Wireless Code Division MultipleAccess, WiMAX code division multiple access) standard.3GPP has described Bearer Transport with multiplexing (multiplexed carrying transmission) technology in the agreement 3GPPTS29.414 of its formulation.And defined RTCP (Real-time Transport ControlProtocol, RTCP Real-time Transport Control Protocol) multiplexed negotiated packet, be RTCP Multiplexingpacket, be used to consult multiplexing technique, it comprises the RTP head compression on the multiplexed and multiplexed basis of RTP of RTP (Real-time TransportProtocol, RTP).The multiplexed negotiated packet of this RTCP may be added in the RTCP bag of combined type and sends together.
After setting up new user's face connection, MGW (Media Gate Way at the beginning, on user's face of the Nb mouth media gateway) connects, the MGW of equity sends the data of not using frequency multiplexing technique, the multiplexed negotiation packet of the RTCP of Fa Songing can show that this locality has been ready to receive multiplexed data stream to the MGW of equity subsequently, and carries multiplexing, a compressed capability information of local terminal.
If support the MGW of frequency multiplexing technique to receive the multiplexed negotiation packet of RTCP that another reciprocity MGW sends, and when local terminal MGW decision is also adopted frequency multiplexing technique, the udp port that can in the multiplexed negotiation packet of the RTCP that is received, indicate at once number transmission multiplexed data stream, the i.e. multiplexing bag of RTP.For the MGW that does not support frequency multiplexing technique, then ignore the multiplexed negotiation packet of the RTCP that is received.MGW sends one to reciprocity MGW and shows that local terminal carried out the multiplexed message of RTCP that receives multiplexed data stream, and not meaning that this MGW just must send multiplex data stream, multiplexing technique can use in a RTP session unidirectional or two-wayly.When selecting to use the multiplexing technique that the compression of RTP head is arranged, message format is as shown in table 1.
Table 1
Wherein, T bit in the multiplexing head (Multiplex Header) represents that follow-up RTP head is compressing head or entire header, for example, represents the follow-up RTP compressing head (Compressed RTP header) that is during T=1.The R bit is a reserved field.The implication of other field in the table 1 can be stipulated referring to related protocol, no longer describes in detail here.
Above-mentioned RTP compressing head has following two kinds of forms, and first kind of form is as shown in table 2, calls form A in the following text:
Table 2
Second kind of form is as shown in table 3, calls form B in the following text:
Table 3
Correlation technique is used the RTP compressing head of above-mentioned two kinds of forms usually according to the mode of acquiescence agreement, promptly determine according to the butt joint agreement between the Media Gateway Controller (MGC), when using SIP (Session Initiation Protocol, session initiation protocol) using form B the time, using form A when using BICC (carrying independent call control protocol).
The inventor finds: the above-mentioned mode underaction of determining RTP compressed format according to control protocol, and autgmentability is poor, for example, and when the RTP multiplexing technique is applied to other interfaces, can not determine and use which kind of RTP compressing head form, cause the correctly situation of analytic message easily.
Summary of the invention
Main purpose of the present invention is to provide message transmitting method, media gateway and the wireless communication system between a kind of media gateway, one of to address the above problem at least.
According to an aspect of the present invention, message transmitting method between a kind of media gateway is provided, comprise: the local terminal media gateway receives the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from the opposite end media gateway, and the multiplexed negotiation packet of this RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of opposite end media gateway selection; The local terminal media gateway sends the multiplexed message of RTP to the opposite end media gateway, and the RTP compressing head of the multiplexed message of this RTP adopts the compressed format of compressed format indication information correspondence.
According to a further aspect in the invention, a kind of media gateway is provided, comprise: receiver module, be used to receive the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from the opposite end media gateway, the multiplexed negotiation packet of this RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of opposite end media gateway selection; Sending module is used for sending the multiplexed message of RTP to the opposite end media gateway, and the RTP compressing head of the multiplexed message of this RTP adopts the compressed format of compressed format indication information correspondence.
According to another aspect of the invention, a kind of wireless communication system is provided, comprise local terminal media gateway and opposite end media gateway, the local terminal media gateway comprises: receiver module, be used to receive the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from the opposite end media gateway, the multiplexed negotiation packet of this RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of opposite end media gateway selection; Sending module is used for sending the multiplexed message of RTP to the opposite end media gateway, and the RTP compressing head of the multiplexed message of this RTP adopts the compressed format of compressed format indication information correspondence; The opposite end media gateway comprises: parsing module, be used to receive the multiplexed message of RTP after, according to the compressed format of the RTP head of selecting the RTP compressing head of the multiplexed message of RTP is resolved.
By the present invention, RTP the compressed format that opposite end MGW supports is known in employing from the multiplexed negotiation packet of RTCP, and then RTP the compressed format that adopts opposite end MGW to support sends the multiplexed message of RTP, the definite mode flexibility of RTP compressed format and the problem of autgmentability difference have been solved, and then reached the effect that the MGW that receives the multiplexed message of RTP can correctly be resolved the RTP compressing head, help the RTP head is compressed, save bandwidth.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the message transmitting method flow chart between the media gateway of the embodiment of the invention 1;
Fig. 2 is the message transmitting method flow chart between the media gateway of the embodiment of the invention 2;
Fig. 3 is the structured flowchart of the media gateway of the embodiment of the invention 3; And
Fig. 4 is the structured flowchart of the wireless communication system of the embodiment of the invention 4.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Wireless communication system comprises a plurality of media gateway MGWs, between each MGW by wireless connections, relevant communication protocol is followed in these wireless connections, this wireless communication system can be applied in the RTP, and embodiments of the invention describe to be embodied as example on the basis of this wireless communication system.
Embodiment 1
Fig. 1 shows according to the message transmitting method flow chart between the media gateway of the embodiment of the invention, and this method may further comprise the steps:
Step S102, local terminal MGW receive from the multiplexed negotiation packet of the RTCP of opposite end MGW, and wherein, the multiplexed negotiation packet of RTCP carries the compressed format indication information of the RTP head of opposite end MGW selection;
Wherein, the multiplexed negotiation packet of RTCP can also carry following information except carrying above-mentioned compressed format indication information: the multiplexing technique of whether supporting not have the compression of RTP head; The multiplexing technique whether support has the RTP head to compress; Receive the local udp port of multiplex data stream; Whether select information such as multiplexed, head compression technology.
Present embodiment can adopt to be expanded the selection of the multiplexed negotiation packet of RTCP (Selection) field, and the compressed format indication information is carried in the Selection field after the expansion, and wherein, the form of the multiplexed negotiation packet of RTCP is as shown in table 4:
Table 4
Wherein, the implication of each field can be with reference to the description in the 3GPPTS29.414 agreement in the table 4, for example APP packet header (APP packet header) part does not change, application data (Application dependent data) part, multiplexing MUX part, cyclic prefix CP part implication are constant, respectively expression whether support not have the compression of RTP head multiplexing technique, whether support the multiplexing technique of RTP head compression.The multiplexing UDP of local terminal (UserDatagram Protocol, User Datagram Protoco (UDP)) port (Local Mux UDP Port), the multiplexing udp port number of expression local terminal.The side that the Selection field represents to send the multiplexed negotiation packet of RTCP is selected user's face message format of which kind of mode.
The value of the Selection field after the present embodiment expansion can be as follows:
-non-RTP is multiplexed;
-not multiplexed with the RTP of RTP head compression;
The RTP of RTP compressed format A of-band is multiplexed;
The RTP of RTP compressed format B of-band is multiplexed;
Step S104, local terminal MGW sends the multiplexed message of RTP to opposite end MGW, and wherein, the RTP compressing head of the multiplexed message of RTP adopts the compressed format of above-mentioned compressed format indication information correspondence.
When local terminal MGW sends the multiplexed message of RTP, can determine RTP corresponding compressed format according to above-mentioned compressed format indication information; Adopt RTP the compressed format of determining that the RTP head is compressed then, the RTP compressing head that obtains after the compression is encapsulated in the multiplexed message of RTP, send the multiplexed message of RTP after encapsulating again.
Because the compressed format of RTP head is selected before the MGW of this opposite end, and be notified to above-mentioned local terminal MGW by the multiplexed negotiation packet of RTCP, so after opposite end MGW receives the multiplexed message of RTP, can resolve the RTP compressing head of the multiplexed message of RTP according to the compressed format of the RTP head of selecting.
RTP the compressed format of the MGW of present embodiment by knowing that from the multiplexed negotiation packet of RTCP opposite end MGW supports, and then RTP the compressed format that adopts opposite end MGW to support sends the multiplexed message of RTP, the definite mode flexibility of RTP compressed format and the problem of autgmentability difference have been solved, and then the MGW that receives the multiplexed message of RTP can correctly be resolved the RTP compressing head, help saving bandwidth.
The compressed format of RTP head can be the form A shown in the table 2 in the present embodiment, also can be the form B shown in the table 3.The selection of RTP compressed format A and RTP compressed format B, MGW can determine after the analysis-by-synthesis.As can be according to the protocol description of 3GPP, promptly according to RTP the compressed format of butt joint logic interfacing type selecting between MGW.Or according to the situation of physical medium stream, as the M field of message in the Media Stream and PT field all can not timing variation, so just select form B more suitable.
RTP the compressed format of local terminal MGW in order to use in the multiplexed message of clear and definite RTP, present embodiment is expanded the multiplexed message of RTP, for example, in the multiplexed message of RTP, carry the compressed format indication information, clearly identify the compressed format of RTP head, this compressed format indication information can be carried at the R field in the message format shown in the table 1, and this R field is originally reserved field, present embodiment identifies compressed format indication information, for example form A or form B with this R field.When T=1, when promptly the RTP head was compressed format in the message, R field was represented the compressed format of RTP head, i.e. form A or form B.When T=0, when promptly the RTP head was incompressible entire header in the message, R field was nonsensical, is changed to 0.
When the multiplexed message of RTP carries the compressed format indication information, after opposite end MGW receives the multiplexed message of this RTP, the RTP compressing head of the multiplexed message of RTP is resolved according to the compressed format indication information that the multiplexed message of RTP carries.
Present embodiment is by carrying the compressed format indication information at the multiplexed message of RTP, and the compressed format that opposite end MGW can more convenient clear and definite RTP compressing head be adopted carries out this RTP compressing head is resolved, and obtains corresponding information and finishes follow-up processing.Solve the definite mode flexibility of RTP compressed format and the problem of autgmentability difference, and then helped the RTP head is compressed, saved bandwidth.
Embodiment 2
Fig. 2 shows according to the message transmitting method flow chart between the MGW of the embodiment of the invention, comprising multiplexed negotiation packet of RTCP and the multiplexed packet sending and receiving process of RTP, specifically may further comprise the steps:
Step S202, after calling entered stable state, MGW1 began to send normal RTP medium face message (perhaps, sending the multiplexing medium face message of non-RTP).
Step S204, after calling entered stable state, MGW2 also began to send normal RTP medium face message (the medium face message that non-RTP is multiplexing).
Step S206, MGW1 begin the multiplex consultation process, promptly send the multiplexed negotiation packet of RTCP.Wherein carry multiplexing capacity, a compressed capability, multiplexing port, multiplexing selection information such as (Selection).Because MGW1 does not also receive the multiplexing capacity information of opposite end MGW2, therefore multiplexing selection field can be filled in " non-RTP is multiplexed ".
Because the multiplexed negotiation packet meeting of RTCP timed sending, follow-up when sending the multiplexed negotiation packet of RTCP again, if received the multiplexed negotiation packet of the RTCP of opposite end, can revise multiplexing selection field is the compressed format indication information, for example " RTP of RTP compressed format A of band is multiplexed " or " RTP of RTP compressed format B of band is multiplexed ".
Step S208, MGW2 have also begun the multiplex consultation process, promptly send the multiplexed negotiation packet of RTCP.Wherein carry multiplexing capacity, a compressed capability, multiplexing port, multiplexing selection information such as (Selection).Because MGW2 has received the multiplexed negotiation packet of RTCP that opposite end MGW1 sends, promptly received the multiplexing capacity information of opposite end MGW1, therefore select multiplexing compressed format after the MGW analysis-by-synthesis, promptly multiplexing selection field may value be " RTP of RTP compressed format A of band is multiplexed " or " RTP of RTP compressed format B of band is multiplexed ".
After step S210, MGW1 receive the multiplexed negotiation packet of RTCP that the MGW2 of opposite end sends, and comprehensive local terminal ability, if ability allows, begin to send the multiplexed message of RTP of band RTP compressing head, wherein R field is indicated RTP the compressed format that MGW1 selects, i.e. form A or form B.
After step S212, MGW2 receive the multiplexed negotiation packet of RTCP that the MGW2 of opposite end sends, and comprehensive local terminal ability, if ability allows, begin to send the multiplexed message of RTP of band RTP compressing head, wherein R field is indicated RTP the compressed format that MGW2 selects, i.e. form A or form B.
Step S214, follow-up MGW1 can the multiplexed negotiation packets of timed sending RTCP, wherein can carry the compressed format indication information.
Step S216, follow-up MGW2 can the multiplexed negotiation packets of timed sending RTCP, wherein can carry the compressed format indication information.
Step S218, follow-up MGW1 continue to send the multiplexed message of RTP of band RTP compressing head, and wherein R field is indicated RTP the compressed format that MGW1 selects, i.e. form A or form B.
Step S220, follow-up MGW2 continue to send the multiplexed message of RTP of band RTP compressing head, and wherein R field is indicated RTP the compressed format that MGW2 selects, i.e. form A or form B.
Present embodiment is by carrying the compressed format indication information at the multiplexed message of RTP, and the compressed format that opposite end MGW can more convenient clear and definite RTP compressing head be adopted carries out this RTP compressing head is resolved, and obtains corresponding information and finishes follow-up processing.Solve the definite mode flexibility of RTP compressed format and the problem of autgmentability difference, and then helped the RTP head is compressed, saved bandwidth.
Embodiment 3
Fig. 3 shows the media gateway architectures block diagram according to the embodiment of the invention, and this media gateway comprises:
Sending module 34 is connected to receiver module 32, is used for sending the multiplexed message of RTP to opposite end MGW, and the RTP compressing head of the multiplexed message of this RTP adopts the compressed format of compressed format indication information correspondence.
Sending module 34 comprises: the compressed format determining unit is used for determining RTP corresponding compressed format according to the compressed format indication information; Transmitting element, RTP the compressed format that is used to adopt the compressed format determining unit to determine is compressed the RTP head, and the RTP compressing head that obtains after the compression is encapsulated in the multiplexed message of RTP, sends the multiplexed message of RTP after encapsulating.
Wherein, above-mentioned compressed format indication information can be carried in the selection Selection field of the multiplexed negotiation packet of RTCP.
In order to make the compressed format of the clearer and more definite RTP head of opposite end MGW, also can carry the compressed format indication information in the multiplexed message of RTP that sending module 34 sends, for example the compressed format indication information is placed the reserved field R of message.
The MGW of present embodiment can also comprise: the indication information negotiation module, be used for sending the multiplexed negotiation packet of RTCP to opposite end MGW, and the multiplexed negotiation packet of this RTCP carries the compressed format indication information of the RTP head of self selecting;
When the compressed format of the realtime transmission protocol RTP head of selecting, can determine after the analysis-by-synthesis.As can be according to the protocol description of 3GPP, promptly according to RTP the compressed format of butt joint logic interfacing type selecting (form A or form B) between MGW.Or according to the situation of physical medium stream, as the M field of message in the Media Stream and PT field all can not timing variation, so just select form B more suitable.Compressed format shown in form A in the embodiment of the invention and form B difference correspondence table 2 and the table 3.
After the MGW of present embodiment receives the multiplexed message of RTP, the RTP compressing head of the multiplexed message of RTP is resolved according to the compressed format of the RTP head of selecting.If the multiplexed message of RTP carries the compressed format indication information; MGW can resolve the RTP compressing head of the multiplexed message of this RTP according to this compressed format indication information.
RTP the compressed format of present embodiment by knowing that from the multiplexed negotiation packet of RTCP opposite end MGW supports, use this form to send the multiplexed message of RTP, opposite end MGW can be resolved this RTP compressing head according to RTP the compressed format of self supporting, obtain corresponding information and finish follow-up processing.Solve the definite mode flexibility of RTP compressed format and the problem of autgmentability difference, and then helped the RTP head is compressed, saved bandwidth.
Embodiment 4
Fig. 4 shows the structured flowchart according to the wireless communication system of the embodiment of the invention, comprises local terminal MGW42 and opposite end MGW44, and wherein, local terminal MGW42 comprises:
Wherein, above-mentioned compressed format indication information can be carried in the selection Selection field of the multiplexed negotiation packet of RTCP.
Sending module 424 is used for sending the multiplexed message of RTP to opposite end MGW44, and the RTP compressing head of the multiplexed message of this RTP adopts the compressed format of compressed format indication information correspondence;
Opposite end MGW44 comprises:
Parsing module 442, be used to receive the multiplexed message of RTP after, according to the compressed format of the RTP head of selecting the RTP compressing head of the multiplexed message of RTP is resolved.
The multiplexed message of RTP that sending module 424 sends carries the compressed format indication information; Parsing module 442, also be used to receive the multiplexed message of RTP after, according to the compressed format indication information RTP compressing head of the multiplexed message of RTP is resolved.
Other function of the MGW of present embodiment is identical with MGW among the embodiment 3, describes in detail no longer one by one here.
RTP the compressed format of present embodiment by knowing that from the multiplexed negotiation packet of RTCP opposite end MGW supports, use this form to send the multiplexed message of RTP, opposite end MGW can be resolved this RTP compressing head according to RTP the compressed format of self supporting, obtain corresponding information and finish follow-up processing.Solve the definite mode flexibility of RTP compressed format and the problem of autgmentability difference, and then helped the RTP head is compressed, saved bandwidth.
As can be seen from the above description, the present invention has realized following technique effect:
MGW adopts the multiplexed negotiation packet of exchange RTCP mutually, from the multiplexed negotiation packet of RTCP, know RTP the compressed format that opposite end MGW supports, and then RTP the compressed format that adopts opposite end MGW to support sends the multiplexed message of RTP, the definite mode flexibility of RTP compressed format and the problem of autgmentability difference have been solved, and then reached the MGW that receives the multiplexed message of RTP can correctly be resolved the RTP compressing head, help the RTP head is compressed, save bandwidth.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the message transmitting method between a media gateway is characterized in that, comprising:
The local terminal media gateway receives the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from the opposite end media gateway, and the multiplexed negotiation packet of described RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of described opposite end media gateway selection;
Described local terminal media gateway sends the multiplexed message of RTP to described opposite end media gateway, and the RTP compressing head of the multiplexed message of described RTP adopts the compressed format of described compressed format indication information correspondence.
2. method according to claim 1 is characterized in that, described compressed format indication information is carried in the selection Selection field of the multiplexed negotiation packet of described RTCP.
3. method according to claim 1, it is characterized in that, described local terminal media gateway sends the multiplexed message of RTP to described opposite end media gateway, and the RTP compressing head of the multiplexed message of described RTP adopts the compressed format of described compressed format indication information correspondence to comprise:
Described local terminal media gateway is determined RTP corresponding compressed format according to described compressed format indication information, and adopt described definite RTP compressed format that the RTP head is compressed, the RTP compressing head that obtains after the compression is encapsulated in the multiplexed message of RTP, sends the multiplexed message of RTP after encapsulating.
4. according to each described method of claim 1-3, it is characterized in that described method also comprises:
After described opposite end media gateway was received the multiplexed message of described RTP, the compressed format of the RTP head of selecting according to described opposite end media gateway was resolved the RTP compressing head of the multiplexed message of described RTP.
5. according to the arbitrary described method of claim 1-3, it is characterized in that the multiplexed message of described RTP carries described compressed format indication information;
Described method also comprises:
After described opposite end media gateway is received the multiplexed message of described RTP, the RTP compressing head of the multiplexed message of described RTP is resolved according to the compressed format indication information that the multiplexed message of described RTP carries.
6. a media gateway is characterized in that, comprising:
Receiver module is used to receive the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from the opposite end media gateway, and the multiplexed negotiation packet of described RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of described opposite end media gateway selection;
Sending module is used for sending the multiplexed message of RTP to described opposite end media gateway, and the RTP compressing head of the multiplexed message of described RTP adopts the compressed format of described compressed format indication information correspondence.
7. media gateway according to claim 6 is characterized in that, described sending module comprises:
The compressed format determining unit is used for determining RTP corresponding compressed format according to described compressed format indication information;
Transmitting element, RTP the compressed format that is used to adopt described compressed format determining unit to determine is compressed the RTP head, and the RTP compressing head that obtains after the compression is encapsulated in the multiplexed message of RTP, sends the multiplexed message of RTP after encapsulating.
8. according to claim 6 or 7 described media gateway, it is characterized in that the multiplexed message of RTP that described sending module sends carries described compressed format indication information.
9. a wireless communication system comprises local terminal media gateway and opposite end media gateway, it is characterized in that, described local terminal media gateway comprises:
Receiver module, be used to receive the multiplexed negotiation packet of RTCP Real-time Transport Control Protocol RTCP from described opposite end media gateway, the multiplexed negotiation packet of described RTCP carries the compressed format indication information of the realtime transmission protocol RTP head of described opposite end media gateway selection;
Sending module is used for sending the multiplexed message of RTP to described opposite end media gateway, and the RTP compressing head of the multiplexed message of described RTP adopts the compressed format of described compressed format indication information correspondence;
Described opposite end media gateway comprises:
Parsing module, be used to receive the multiplexed message of described RTP after, according to the compressed format of the described RTP head of selecting the RTP compressing head of the multiplexed message of described RTP is resolved.
10. wireless communication system according to claim 9 is characterized in that, the multiplexed message of RTP that described sending module sends carries described compressed format indication information;
Described parsing module, also be used to receive the multiplexed message of described RTP after, according to the compressed format indication information that the multiplexed message of described RTP carries the RTP compressing head of the multiplexed message of described RTP is resolved.
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WO2011153842A1 (en) * | 2010-06-10 | 2011-12-15 | 中兴通讯股份有限公司 | Message transmission method between media gateways, media gateway and radio communication system thereof |
CN103827760B (en) * | 2011-07-06 | 2016-07-06 | Abb股份公司 | For being carried out the method and system of transmitting procedure reflection by gateway device |
CN103827760A (en) * | 2011-07-06 | 2014-05-28 | Abb股份公司 | Method for transmitting a process map via a gateway device |
CN102629927B (en) * | 2012-04-09 | 2015-05-27 | 华为技术有限公司 | Receiving and transmitting method and device as well as processing system for RTP (Real-time Transport Protocol) media data |
CN102629927A (en) * | 2012-04-09 | 2012-08-08 | 华为技术有限公司 | Receiving and transmitting method and device as well as processing system for RTP (Real-time Transport Protocol) media data |
CN105227534A (en) * | 2014-06-30 | 2016-01-06 | 中兴通讯股份有限公司 | Message format processing method and device |
WO2016000348A1 (en) * | 2014-06-30 | 2016-01-07 | 中兴通讯股份有限公司 | Packet format processing method and device |
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CN109818901A (en) * | 2017-11-20 | 2019-05-28 | 华为技术有限公司 | Heading compression mechanism determines method, equipment and system |
CN109818901B (en) * | 2017-11-20 | 2021-04-20 | 华为技术有限公司 | Method, device and system for determining message header compression mechanism |
CN111049833A (en) * | 2019-12-13 | 2020-04-21 | 北京东土科技股份有限公司 | Port multiplexing control method, device, server and storage medium |
CN111049833B (en) * | 2019-12-13 | 2022-02-22 | 北京东土科技股份有限公司 | Port multiplexing control method, device, server and storage medium |
CN112511429A (en) * | 2020-03-25 | 2021-03-16 | 中兴通讯股份有限公司 | Method, node, controller and computer readable medium for information transmission and processing |
WO2022063058A1 (en) * | 2020-09-28 | 2022-03-31 | 中兴通讯股份有限公司 | Netconf protocol-based transmission method, device and storage medium |
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