Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
  • H04L69/22—Parsing or analysis of headers
• • 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
  • H04L65/60—Network streaming of media packets
  • H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]

Definitions

• the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for implementing a single coupling to support multiple users. Background technique
• SCTP Stream Control Transmission Protocol
• SCTP RRC4960
• SCTP Stream Control Transmission Protocol
• TCP Transmission Protocol-like traffic control and congestion control algorithms to ensure reliable transmission of user data between two SCTP endpoints through its own authentication and retransmission mechanism.
• SCTP has a small transmission delay, which can prevent some big data from blocking other data, and has higher reliability and security.
• the current SIGTRAN (Signaling Transport) technology is a coupling that supports one user, that is, a coupling can only support a single protocol user, such as M2PA (MTP2 (message delivery part second level) peer adaptation layer) type
• M2PA MTP2 (message delivery part second level) peer adaptation layer) type
• the coupling can only be used by M2PA users.
• M2PA message delivery part second level
• multiple couplings need to be configured to support each protocol user separately, which is a waste of bandwidth.
• bandwidth consumption can be reduced because the probability of packet reuse is higher in a coupled case and the number of IP addresses and port configurations can be reduced. Summary of the invention
• the present invention provides a method and apparatus for implementing a single coupling to support multiple users, to solve the problem that a coupling existing in the prior art can only support a single protocol user, thereby causing transmission of broadband resources. Waste problem.
• a method for implementing a single coupling to support multiple users comprising:
• Step 1 Activate a pre-configured coupling that does not specify a protocol type, and record the process ID and the coupling protocol identifier PPI information of all the upper layer protocol users that are coupled;
• Step 2 Receive a data packet sent by an upper layer protocol user, and send the received data packet to the opposite end SCTP through the coupled local SCTP, and when receiving the data packet sent by the opposite end SCTP, according to the The PPI information carried in the data packet is used to search for the process ID of the user, and the data packet is sent to the upper layer protocol user corresponding to the process ID.
• the step 1 specifically includes:
• Step 11 The two upper-layer protocol users with the same protocol are configured to record the user process ID and PPI information carried in the request message from a pre-configured request message of the initialization instance sent by the two ends of the protocol.
• Step 12 Determine whether the coupling is activated, and if yes, send a coupling activation indication message to the upper layer protocol user, and end the process; otherwise, perform step 13;
• Step 13 determining whether the INIT primitive has been initiated to the SCTP, and if yes, waiting for the coupling to be activated, sending a coupling activation indication message to the upper layer protocol user; otherwise, initiating an INIT primitive to the SCTP, waiting for the After the coupling is activated, a coupling activation indication message is sent to the upper layer protocol user.
• the step 2 further includes:
• the data packet is discarded.
• the method further includes:
• the user When receiving the release coupling request message initiated by the user of the upper layer protocol, determining whether there are other upper layer protocol users on the coupling, and if so, directly using the upper layer protocol for sending the release request
• the user sends an indication message that is coupled to the exit service, and clears the recorded information about the user; otherwise, sends a SHUTDOWN primitive to the SCTP, and after the link is broken, sends an indication to the upper layer protocol user to opt out of the service, and clears the record. Information about this user;
• the related information of the user includes a process ID and PPI information of the user.
• the method further includes:
• the method further includes:
• the coupling When receiving the coupling broken link indication message sent by the SCTP, the coupling is notified to all the upper layer protocol users to be coupled to the exit service, and the coupling of all upper layer protocol user information is cleared.
• a device for implementing single-couple coupling to support multiple users including:
• a coupling establishment unit configured to activate a pre-configured coupling of a non-specified protocol type, and record the process ID and coupling protocol identification PPI information of all the upper layer protocol users coupled;
• the data transceiver unit is configured to receive the upper layer a data packet sent by the protocol user, and the received data packet is sent to the opposite end SCTP through the coupled local SCTP, and is received according to the data packet when receiving the data packet sent by the opposite end SCTP.
• the PPI information searches for the process ID of the user, and sends the data packet to the upper layer protocol user corresponding to the process ID.
• the data transceiver unit is further configured to: when the process number of the corresponding user is not found according to the PPI information carried by the data packet, discard the data packet.
• the device further includes:
• the coupling release unit is configured to: when receiving the release coupling request message initiated by the user of the upper layer protocol, determine whether there are other upper layer protocol users on the coupling, and if yes, directly send the coupling to the upper layer protocol user that sends the release request Exit the service indication message and clear the recorded information about this user; otherwise, send the SHUTDOWN primitive to the SCTP, and after the coupling is broken, give it
• the layer protocol user sends an indication of coupling to the exit service, and clears the recorded related information of the user; the related information of the user includes the user's process ID and PPI information.
• the device further includes:
• a coupled congestion processing unit configured to send a coupled congestion indication message to the coupled upper layer protocol user when receiving the coupled congestion indication message sent by the SCTP, and receive the coupled congestion release sent by the SCTP Sending a coupled congestion release indication message to the coupled upper layer protocol user when the message is indicated;
• a coupling chain breaking processing unit configured to notify the coupling of all upper layer protocol users to be detached from the service when receiving the coupling broken link indication message sent by the SCTP, and clear the recorded upper layer protocol of the coupling User related information.
• the present invention has the following advantages:
• the method provided by the present invention utilizes the characteristics of the underlying SCTP coupling and the specific upper layer protocol, so that a single coupling can support a plurality of different upper layer users according to the PPI (Payload Protocol Identifier), and fully utilizes Transmission bandwidth resources, reducing the configuration of IP addresses and ports, can meet the application of some special occasions.
• PPI Payment Protocol Identifier
• FIG. 1 is a flowchart of a method for implementing a single coupling to support multiple users according to the present invention
• FIG. 2 is a structural diagram of an extended protocol stack application according to the present invention
• FIG. 3 is a flowchart of coupling establishment according to an embodiment of the present invention.
• FIG. 5 is a flowchart of coupling release according to an embodiment of the present invention.
• FIG. 6 is a structural diagram of an apparatus for implementing single-coupling support for multiple users according to the present invention. detailed description
• a coupling can only support a single protocol user, thereby causing waste of transmitting broadband resources.
• the present invention provides a method and apparatus for implementing single coupling to support multiple users, and the method implements a single even
• the connection can support multiple different upper layer protocol users according to the PPI, make full use of the transmission bandwidth resources, and reduce the configuration of the IP address and port.
• the method provided by the present invention for implementing a single coupling to support multiple users includes:
• Step S101 Activate a pre-configured coupling of a non-specified protocol type, and record the process ID and the coupling protocol identifier PPI information of all the associated upper layer protocol users.
• This step is specifically as follows:
• the two upper-layer protocol users with the same receiving protocol record the request message of the initializing instance sent by the two ends of the uncoupled protocol type, and record the user process number and PPI information carried in the request message;
• step (3) (2) determining whether the coupling is activated, and if so, reporting the coupling activation indication message to the upper layer protocol user, ending the process; otherwise, performing step (3);
• Step S102 Receive a data packet sent by a user of an upper layer protocol, send the data packet to the opposite end SCTP by using the local SCTP, and, when receiving the data packet sent by the peer SCTP, search for the PPI information carried by the data packet.
• the process ID of the user and sends the data packet to the upper layer protocol user corresponding to the process ID.
• the data packet is discarded.
• the method provided by the present invention utilizes the characteristics that the underlying SCTP coupling is independent of the specific upper layer protocol, so that a single coupling can support multiple different upper layer protocol users according to the PPI, fully utilize the transmission bandwidth resources, and reduce the IP address and port.
• the configuration can meet the application of some special occasions.
• the core idea of the embodiment of the present invention is to extend the application structure of the protocol stack, and use different PPIs of different protocols to distinguish different users, so that a single coupling can support multiple different upper layer users according to the PPI, specifically, expanding.
• the application structure of the subsequent protocol stack is shown in Figure 2.
• a coupling management module is introduced to explain the implementation process of the present invention in detail.
• the present invention is not limited to being implemented by the coupling management module, and may also be coupled through a coupling management device. Such as hardware device implementation.
• FIG. 3 specifically includes the following steps:
• Step S300 start.
• Step S301 Configure a coupling, and do not specify the type of the protocol to be coupled.
• Step S302 The coupling management module receives a request message of an initialization instance initiated by the two upper-layer protocol users of the same protocol at the two ends of the coupling, where the request message carries the protocol user.
• PPI Postload Protocol Identifier
• Step S303 The coupling management module determines whether the coupling is activated. If not, step S304 is performed. Otherwise, the coupling activation indication message is directly sent to the upper layer protocol user, and then the process proceeds to step S306.
• Step S304 the coupling management module determines whether the INIT primitive has been initiated to the SCTP. If not, the coupling management module sends an INIT primitive to the SCTP layer, requests an initialization instance, and starts to establish a process; otherwise, does not process, waits for the bottom layer After the activation, step S305 is performed.
• Step S305 After the coupling establishment is successful, the coupling management module sends a coupling activation indication message to the corresponding upper layer protocol user.
• the data transmission and reception process is started.
• the data transmission and reception process specifically includes the following steps:
• Step S400 start.
• Step S401 The coupling management module receives the data packet sent by the upper layer protocol user.
• Step S402 The coupling management module determines whether the coupling is activated. If yes, step S403 is performed; otherwise, step S408 is performed.
• Step S403 The coupling management module sends the received data packet to the SCTP coupled to the local end, and the local SCTP sends the data packet to the coupled peer SCTP through the IP network.
• Step S404 The coupling management module receives the data packet sent by the peer SCTP.
• Step S405 Determine whether the coupling is activated. If yes, go to step S406; otherwise, go to step S408.
• Step S406 Search for the process ID of the upper layer protocol user corresponding to the PPI according to the PPI in the data packet. If yes, go to step S407; otherwise, discard the message, and go to step S408.
• Step S407 Send the data packet to an upper layer protocol user corresponding to the process ID of the user.
• the coupling management module receives the coupled congestion indication message sent by the SCTP, and sends a coupled congestion indication message to all upper-layer protocol users to notify the upper layer protocol.
• the user stops sending the packet action; after receiving the coupled congestion release indication message sent by the SCTP, the device sends a coupled congestion release indication message to all upper-layer protocol users, and notifies all upper-layer protocol users to perform congestion cancellation, and continues to Coupling sends data.
• the coupling management module receives the coupling broken link indication message sent by the SCTP, and notifies all the upper layer protocol users of the coupling to quit the service, and clears all the upper layer protocol users coupled. information.
• the coupling release process is also performed. Specifically, as shown in FIG. 5, the following steps are included:
• Step S501 The upper layer protocol user initiates a release coupling request message to the coupling management module, and the request message must carry the PPI information.
• Step S502 The coupling management module determines whether the coupling has other upper layer protocol users. If yes, step S503 is performed; otherwise, step S504 is performed.
• Step S503 The coupling management module directly sends an indication message to the upper layer protocol user to be coupled to the exit service, and clears the recorded related information of the user, where the related information includes the process ID and PPI information of the user.
• Step S504 The coupling management module sends a SHUTDOWN primitive to the SCTP, and after the link is broken, sends an indication to the upper layer protocol user to be detached from the service, and clears the recorded information about the user.
• the present invention also provides a device for implementing a single coupling to support multiple users.
• the method includes:
• the coupling establishment unit 610 is configured to activate a pre-configured coupling of a non-specified protocol type, and record the process ID and coupling protocol identification PPI information of all the upper layer protocol users coupled;
• the data transceiver unit 620 is configured to receive
• the data packet sent by the user of the upper layer protocol is sent to the peer SCTP through the coupled local flow control transmission protocol SCTP, and is received according to the data packet when the data packet sent by the peer SCTP is received.
• the PPI information searches for the process ID of the user, and sends the data packet to the upper layer protocol user corresponding to the process ID.
• the data transceiver unit 620 is further configured to discard the data packet when the process ID of the user is not found according to the PPI information carried in the data packet.
• the device provided by the present invention further includes:
• the coupling release unit 630 is configured to determine whether there are other upper layer protocol users on the coupling when receiving the release coupling request message initiated by the user of the upper layer protocol, and if yes, send the coupling exit directly to the upper layer protocol user that sends the release request.
• Information where the user's related information includes the user's process ID and PPI information.
• the coupled congestion processing unit 640 is configured to send a coupled congestion indication message to all upper layer protocol users when receiving the coupled congestion indication message sent by the SCTP, and receive the coupled congestion release indication sent by the SCTP. In the case of a message, a coupled congestion release indication message is sent to all upper layer protocol users coupled.
• the coupling chain breaking processing unit 650 is configured to notify all the upper layer protocol users to be coupled to the exit service when receiving the coupled chain disconnection indication message sent by the SCTP, and clear the recorded upper layer protocol user of the coupling. Related information.
• the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43627209

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (2)

Citations (2)

Family Cites Families (2)

• 2009
  • 2009-08-28 CN CN200910169711.0A patent/CN101997862B/zh active Active
• 2010
  • 2010-05-19 JP JP2012525862A patent/JP5411992B2/ja active Active
  • 2010-05-19 WO PCT/CN2010/072960 patent/WO2011023001A1/zh active Application Filing

Patent Citations (2)

Non-Patent Citations (2)

Also Published As

Similar Documents

Legal Events