WO2011015116A1 - 实现数据共享的方法及系统和网络侧装置 - Google Patents
实现数据共享的方法及系统和网络侧装置 Download PDFInfo
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- WO2011015116A1 WO2011015116A1 PCT/CN2010/075581 CN2010075581W WO2011015116A1 WO 2011015116 A1 WO2011015116 A1 WO 2011015116A1 CN 2010075581 W CN2010075581 W CN 2010075581W WO 2011015116 A1 WO2011015116 A1 WO 2011015116A1
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- side device
- receiving terminal
- data packet
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/176—Support for shared access to files; File sharing support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
Definitions
- the present invention relates to communication technologies, and in particular, to a method and system for implementing data sharing and a network side device. Background of the invention
- video sharing services came into being. Through the video sharing service, users can share the video they wish to share to other users in the real-time.
- the embodiments of the present invention provide a method and system for implementing data sharing and a network side device, which can implement video sharing and the like between different user terminals.
- An embodiment of the present invention provides a method for implementing data sharing, including:
- the first network side device receives the service request sent by the sending terminal, and establishes a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries information of the receiving terminal;
- the first network side device receives the data packet sent by the sending terminal, and sends the data packet to the second network side device to which the receiving terminal belongs according to the information of the receiving terminal.
- the embodiment of the invention further provides a method for implementing data sharing, including:
- the second network side device receives, by the second network side device, a service request sent by the receiving terminal, and establishing a connection between the receiving terminal and the second network side device;
- the second network side device receives a data packet sent by the first network side device, and sends the data packet to the receiving terminal by using the connection.
- the embodiment of the invention further provides a first network side device, including:
- a first connection establishing module configured to receive a service request sent by the sending terminal, and establish a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries information of the receiving terminal;
- a distribution module configured to receive the data packet sent by the sending terminal, and send the data packet to the second network side device to which the receiving terminal belongs according to the information of the receiving terminal received by the first connection establishing module.
- the embodiment of the invention further provides a second network side device, including:
- a second connection establishing module configured to receive a service request sent by the receiving terminal, to establish a connection between the receiving terminal and the second network side device;
- a second distribution module configured to receive a data packet sent by the first network side device, and send the data packet to the receiving terminal by using the connection established by the second connection establishment module.
- An embodiment of the present invention further provides a system for implementing data sharing, including a first network side device and a second network side device;
- the first network side device includes:
- a first connection establishing module configured to receive a service request sent by the sending terminal, and establish a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries information of the receiving terminal
- a distribution module configured to receive a data packet sent by the sending terminal, and send the data packet to a second network side device to which the receiving terminal belongs according to the information of the receiving terminal received by the first connection establishing module
- the second network side device includes:
- a second connection establishing module configured to receive a service request sent by the receiving terminal, to establish a connection between the receiving terminal and the second network side device;
- a second distribution module configured to receive a data packet sent by the first network side device, and send the data packet to the receiving terminal by using a connection established by the second connection establishment module.
- the service request of the sending terminal to the first network side device carries the information of the receiving terminal, so that after receiving the data sent by the sending terminal, the first network side device may, according to the information of the receiving terminal,
- the second network side device that is sent to the receiving terminal belongs to the second network side device, and the second network side device transmits the received data to the receiving terminal, thereby realizing data sharing.
- the transmitting terminal does not need to transmit data to the application server dedicated to the network side to process the data, but directly performs data transmission between the transmitting terminal and the receiving terminal, the delay in data transmission can be reduced.
- Embodiment 1 is a flowchart of Embodiment 1 of a method for implementing data sharing according to the present invention
- Embodiment 2 is a flowchart of Embodiment 2 of a method for implementing data sharing according to the present invention
- FIG. 3 is a schematic structural diagram of an LTE network involved in an embodiment of the present invention.
- Embodiment 4 is a signaling interaction diagram of Embodiment 3 of a method for implementing data sharing according to the present invention.
- FIG. 5 is a signaling interaction diagram of Embodiment 4 of a method for implementing data sharing according to the present invention.
- FIG. 6 is a schematic structural diagram of another LTE network involved in the embodiment of the present invention.
- Embodiment 7 is a signaling interaction diagram of Embodiment 5 of a method for implementing data sharing according to the present invention.
- FIG. 8 is a schematic diagram of a signaling interaction diagram of a sixth embodiment of a method for implementing data sharing according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of a signaling interaction diagram of Embodiment 7 of a method for implementing data sharing according to an embodiment of the present invention.
- FIG. 12 is a diagram showing an Internet according to an embodiment of the present invention.
- Embodiment 8 is a signaling interaction diagram of Embodiment 8 of a method for implementing data sharing according to the present invention.
- FIG. 14 is a schematic structural diagram of an embodiment of a first network side device according to the present invention.
- FIG. 15 is a schematic structural diagram of an embodiment of a second network side device according to the present invention.
- FIG. 16 is a schematic structural diagram of a system embodiment for implementing data sharing according to the present invention. Mode for carrying out the invention
- FIG. 1 is a flowchart of Embodiment 1 of a method for implementing data sharing according to the present invention, including:
- Step 101 The first network side device receives the service request sent by the sending terminal, and establishes a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries the information of the receiving terminal.
- the information of the receiving terminal carried in the service request sent by the sending terminal may be information such as the address of the receiving terminal or the identifier of the receiving terminal.
- Step 102 The first network side device receives the data packet sent by the sending terminal, and sends the data packet to the second network side device to which the receiving terminal belongs according to the information of the receiving terminal.
- the service request sent by the sending terminal further carries a distribution indication, and the distribution indication is used to notify the second network side device to copy and send the received data packet to different receiving terminals.
- the step 102 may specifically include: receiving, by the first network side device, the data packet sent by the sending terminal, according to the sending end The information of the receiving terminal and the distribution indication carried in the service request sent by the terminal, copy the data packet into N shares, and send each data packet to the second network side device to which each receiving terminal belongs. For example, if the information of the receiving terminal carried in the service request sent by the sending terminal is the address of the receiving terminal, the first network side device receives the data packet sent by the sending terminal, according to the information of the receiving terminal carried in the service request sent by the sending terminal.
- the first network side device receives the data packet sent by the sending terminal, according to the information and the distribution of the receiving terminal carried in the service request sent by the sending terminal. Instructing, copying the data packet into N shares, replacing the identifiers in the respective data packets with the identifiers of the respective receiving terminals, and transmitting the respective data packets to the second network side device to which each receiving terminal belongs.
- the first network side device receives the service request sent by the sending terminal, and establishes a connection between the sending terminal and the first network side device, and may perform head compression negotiation with the sending terminal.
- the step 102 may include: receiving, by the first network side device, the data packet sent by the sending terminal after the header compression, and performing header decompression on the data packet, according to the information of the receiving terminal carried in the service request sent by the sending terminal. And distributing the indication, copying the data packet into N shares, and transmitting each data packet to the second network side device to which each receiving terminal belongs.
- the data packet sent by the sending terminal is sent by each receiving terminal, and the information of the destination address and the receiver identifier in the data packet sent by the sending terminal is different, and the first network side device is in the process of establishing a connection with the transmitting terminal.
- the header compression negotiation may be performed with the transmitting terminal to eliminate the difference of the data packets sent to the different receiving terminals, so that the data compressed by the transmitting terminal for the header is the same for different receiving parties.
- FIG. 2 is a flowchart of Embodiment 2 of a method for implementing data sharing according to the present invention, including:
- Step 201 The second network side device receives the service request sent by the receiving terminal, and establishes a connection between the receiving terminal and the second network side device.
- Step 202 The second network side device receives the data packet sent by the first network side device, and sends the data packet to the receiving terminal by using the connection established in step 201.
- the step 201 may include: the second network side device receiving the service request sent by the receiving terminal, where the service request carries the convergence identifier, and the establishing the The connection between the receiving terminal and the second network side device establishes a multicast group for the receiving terminal that carries the same aggregation identifier in the service request.
- the step 202 may include: receiving, by the second network side device, the data packet sent by the first network side device, and sending the data packet to each receiving terminal by using the multicast group. The data packet sent by the sending terminal is sent for each receiving terminal. For different receiving terminals, the data packet sent by the sending terminal is in the destination.
- the second network side device needs to establish different connections with different receiving terminals to send different data packets to the receiving terminal.
- the second network side device may establish a multicast group for the receiving terminal carrying the same aggregation identifier in the service request.
- the step 201 may include: the second network side device receiving the service request sent by the receiving terminal, where the service request carries the convergence identifier, and establishing The connection between the receiving terminal and the second network side device establishes a multicast bearer channel for the receiving terminal that carries the same aggregation identifier in the service request.
- the step 202 may specifically include: receiving, by the second network side device, the data packet sent by the first network side device, performing header compression on the data packet, and transmitting the data packet after the header compression to each receiving terminal by using the multicast bearer channel.
- the service request sent by the sending terminal to the first network side device may be a bearer setup request, or a session establishment request, or may be another service for establishing a connection between the sending terminal and the first network side device. request.
- the service request sent by the receiving terminal to the second network side device may be a bearer setup request, or a session establishment request, or may be another service request for establishing a connection between the receiving terminal and the second network side device.
- the service request of the sending terminal to the first network side device carries the information of the receiving terminal, so that after receiving the data sent by the sending terminal, the first network side device may be based on the information of the receiving terminal.
- the transmitting terminal since the transmitting terminal does not need to transmit data to the application server dedicated to the network side to process the data, but directly performs data transmission between the transmitting terminal and the receiving terminal, the delay in data transmission can be reduced.
- the embodiment of the invention further provides a method for implementing data sharing, including:
- Step A1 The first network side device receives the service request sent by the sending terminal, and establishes a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries information of the receiving terminal;
- Step A2 The first network side device receives the data packet sent by the sending terminal, and sends the data packet to the second network side device to which the receiving terminal belongs according to the information of the receiving terminal;
- Step A3 The second network side device receives the service request sent by the receiving terminal, and establishes a connection between the receiving terminal and the second network side device.
- Step A4 The second network side device receives a data packet sent by the first network side device, and sends the data packet to the receiving terminal by using the connection.
- step A3 may be performed before step A1, or step A3 may be performed simultaneously with step A1, or step A3 may be performed before step A2 after step A1, as long as the first network side device is ensured before step A2 is performed.
- the establishment of the connection with the transmitting terminal is completed, and the connection between the second network side device and the receiving terminal is completed.
- the so-called data sharing can be data sharing between terminals in a mobile network, and can be data sharing between terminals in a mobile network and terminals (such as computers) in the Internet, and can also be data sharing between terminals in the Internet.
- the first network side device may be an access network device or an internet server.
- the access network device refers to each network element in the access network for accessing the mobile terminal to the network.
- the access network may be a network for implementing access functions such as a Long Term Evolution (LTE) network, a Microwave Access Global Interoperability Forum (WiMAX) network, a WCDMA network, and the Internet.
- the second network side device may also be an access network device or an internet server.
- the access network device may include a mobility management unit (Mobility Management Entity, MME for short) to which the transmitting terminal and the receiving terminal belong.
- MME Mobility Management Entity
- the access network device may include a transmitting terminal and an evolved base station (eNB) to which the receiving terminal belongs.
- eNB evolved base station
- the access network device may include a serving terminal (Serving Gateway, S_GW for short) to which the transmitting terminal and the receiving terminal belong.
- the access network device may include a packet data network gateway (Packet Data Network Gateway, P-GW for short) to which the transmitting terminal and the receiving terminal belong, and the like.
- P-GW Packet Data Network Gateway
- the access network device may include a gateway GSN (Gateway GSN, GGSN for short), a Serving GPRS Support Node (SGSN), or a radio network controller (Radio Network Controller). , referred to as RNC) and so on.
- the access network device may include a base station (Base Station, BS for short) or an Access Service Network (ASN), to which the transmitting terminal and the receiving terminal belong.
- BS Base Station
- ASN Access Service Network
- the transmitting terminal and the receiving terminal may belong to different MMEs, eNBs, S_GWs, P-GWs, GGSNs, SGSNs, BSs, ASNs, etc., and may also belong to the same MME, eNB, S-GW, P-GW, GGSN, SGSN. , BS, ASN, etc.
- the following takes the LTE network as an example to illustrate the implementation of data sharing.
- FIG. 3 is a schematic structural diagram of an LTE network involved in the embodiment of the present invention.
- the first UE 11 belongs to the first eNB 12, the second UE 21 belongs to the second e NB 22, and the third UE 31 belongs to the third eNB 32.
- One eNB 12 belongs to the first MME 13, the second eNB 22 belongs to the second MME 23, and the third eNB 32 also belongs to the second MME 23.
- the first MME 13 belongs to the first P-GW 14 and the second MME 23 belongs to the second P_GW 24 .
- Figure 3 shows the transmission paths of video data and application layer signaling, respectively.
- the first MME 13 and the second MME 23 in FIG. 3 may be replaced with a first S-GW to which the first eNB 12 belongs and a second S_GW to which the second eNB 22 belongs, respectively.
- FIG. 4 the implementation method of the data sharing of the present invention is as shown in FIG. 4. As shown in Figure 4, this is the hair
- the signaling interaction diagram of the third embodiment of the method for implementing data sharing includes:
- Step 301 The first UE exchanges application layer signaling with the second UE and the third UE, respectively, to prepare for data sharing.
- the first UE is a transmitting terminal, and the second UE and the third UE are receiving terminals.
- the first UE may perform application layer signaling with the second UE by using the first eNB, the first MME, the first P_GW, the second P_GW, the second MME, and the second eNB.
- the first UE may perform application layer signaling interaction with the third UE by using the first eNB, the first awake E, the first P-GW, the second P-GW, the second MME, and the third eNB.
- Step 302 The first UE sends a bearer setup request to the first MME, where the bearer setup request carries information about the second UE and the third UE, and a distribution indication, where the information may be address information of the second UE and the third UE or User ID.
- Step 303 The first S-GW returns a response message to the first UE, and establishes a connection between the first UE and the first S_GW, that is, establishes a bearer between the first UE and the first S-GW.
- Step 302 the second UE and the third UE respectively initiate a bearer setup request to the second S-GW.
- Step 303 ′ the second S-GW returns a response message to the second UE and the third UE, respectively, and establishes a connection between the second S-GW and the second UR/third UE, that is, establishes a second S-GW and the third The bearer between the two UEs and the bearer between the second S-GW and the third UE.
- Step 304 The first UE sends a data packet to the first S_GW.
- Step 305 The first S-GW sends the received data packet to the second UE and the second S_GW to which the third UE belongs according to the information of the second UE and the third UE carried in the bearer setup request in step 302. Specifically, the first S-GW copies the received data packet into two, sets the destination address in the data packet to the address of each receiving terminal, and then sends the data packet to the second UE and the third UE. Second S_GW.
- Step 306 After receiving the data packet for sending to the second UE and the third UE, the second S-GW separately receives the received data packet according to the destination address in the data packet by using the bearer established in step 303 ' Send to the second UE and the third UE.
- the steps 302, 303 and the steps 302 ', 303 ' may be performed simultaneously or sequentially, as long as the bearer between the first UE and the access network and the second UE, the first UE are guaranteed before the step 304 is performed.
- the bearer between the three UEs and the access network can be established.
- the signaling interaction diagram of Embodiment 4 of the method for implementing data sharing according to the present invention includes: Step 401:
- the first UE exchanges application layer signaling with the second UE and the third UE, respectively, for performing data sharing. ready.
- the application layer signaling that is exchanged between the first UE and the second UE and the third UE carries a session identifier, where the session identifier is unique in the network, and the session identifier may include the first An identifier of a UE and a random identifier, or the session identifier may be another number, a string, or the like that can uniquely identify the session.
- Step 402 The first UE sends a bearer setup request to the first S-GW, where the bearer setup request carries information about the second UE and the third UE, and a distribution indication, where the information may be the address of the second UE and the third UE. Information or user ID.
- Step 403 The first S-GW returns a response message to the first UE, and establishes a connection between the first UE and the first S_GW, that is, establishes a bearer between the first UE and the second S-GW.
- the first UE further performs head compression negotiation with the first S-GW.
- the second UE and the third UE respectively initiate a bearer setup request to the second S-GW, where the bearer setup request carries the convergence identifier, and the convergence identifier carried in the bearer setup request initiated by the second UE and the third UE is the same.
- Step 403 ′ the second S-GW determines whether the convergence identifiers carried in the bearer setup request initiated by the second UE and the third UE are the same. If the same, the second UE and the third UE establish a multicast bearer channel.
- Step 404 The second S-GW returns a response message to the second UE and the third UE, establishing a connection between the second UE and the second S-GW, and a connection between the third UE and the second S-GW. That is, the bearer between the second UR and the second S-GW and the bearer between the third UE and the second S-GW are established.
- the second UE, the third UE, and the second S_GW perform head compression negotiation.
- the header compression negotiation refers to the interaction header compression context, and the headers of the second UE and the third UE are not compressed in the second S-GW in the network side to ensure the same content sent to different receiving terminals.
- the result of the packet compression after the header compression is the same, and the different receiving terminals also maintain the header compression context, and can decompress the data packet according to the header compression context maintained by itself, and recover the data packet sent to itself.
- Step 405 The first UE sends the data packet to the first S_GW after being compressed by the header.
- the packet compressed by the header is the same for all receiving terminals.
- the first UE may perform header compression according to an existing method such as Robust Header Compression (RoHC) technology or payload header suppression (PHS).
- RoHC Robust Header Compression
- PHS payload header suppression
- Step 406 After receiving the data packet sent by the first UE, the first S-GW, according to the information obtained in step 402, negotiates the obtained data packet according to the header compression previously performed with the first UE.
- the header is decompressed, and the video packet after the header decompression is copied into two, and the destination address of the data packet is replaced with the addresses of the second UE and the third UE, respectively.
- the first S-GW sends the header decompressed data packet to the second UE and the second S-GW to which the third UE belongs.
- the first S-GW sends the data packet to the second S-GW.
- the method may be a standard IP routing mode.
- the core network or the Internet After the first S-GW sends the data packet to the core network or the Internet, the core network or the Internet sends the data packet according to the destination address. Routing to The home agent (HA) of the second S-GW is then forwarded to the access network by the HA according to the registration information of the mobile IP; or the local S3 can also be provided with the support of the local route by the first S-GW.
- the S-GW routes directly to the internal network of the access network according to the destination address routing information maintained by the S-GW, and does not process the core network HA to save the bearer network resources.
- Step 407 The second S-GW receives the data packet sent by the first S-GW, and sends data to the second UE and the third UE according to the header compression negotiation previously performed by the second UE and the third UE.
- the packet is subjected to header compression, and the packet compressed by the header is transmitted to the second UE and the third UE by using the multicast bearer channel established in step 403 ' in a multicast manner.
- the steps 402, 403 and the steps 402', 403', 404' may be performed simultaneously or sequentially, as long as the bearer between the first UE and the access network and the second before the step 405 is guaranteed.
- the multicast bearer channel between the UE, the third UE, and the access network may be established.
- the application layer signaling carries the session identifier.
- the bearer setup request initiated by the second UE and the third UE to the second S-GW carries a convergence identifier corresponding to the session identifier, so that the second S-GW can establish a multicast for the second UE and the third UE.
- the bearer channel is not required to establish a bearer channel for the second UR and the third UE, which saves the bearer resources.
- the first UE sends a bearer setup request to the first S-GW to perform a header compression negotiation between the first UE and the first S-GW, and the first UE sends the bearer setup request to the first S-GW.
- the data packet of the first S-GW is a data packet after being compressed by the header. After the first S-GW performs header decompression on the data packet sent by the first UE, the first S-GW sends the data packet to the second S-GW. The second S-GW performs different header compression on the received data packet, and then sends the video data packet to the second UE and the third UE through a multicast bearer channel.
- the first network side device is the first S-GW
- the second network side device is the second network structure as shown in FIG. 3
- the first MME/first S- The GW belongs to the first P-GW
- the second MME/second S-GW belongs to the second P-GW
- the first MME/first S_GW and the second MME/second S_GW may also belong to the same P-GW.
- FIG. 6 is a schematic structural diagram of another LTE network involved in the embodiment of the present invention.
- the first MME/first S-GW 13 and the second MME/second S-GW 23 are all assigned to the third P-GW 34.
- FIG. 7 is a signaling interaction diagram of Embodiment 5 of the method for implementing data sharing according to the present invention, including:
- Step 501 The first UE exchanges application layer signaling with the second UE and the third UE, respectively, to prepare for data sharing.
- the application layer signaling that is exchanged between the first UE and the second UE and the third UE carries a session identifier, where the session identifier is unique in the network, and the session identifier may include the first An identifier of a UE and a random identifier, or the session identifier may be another number, a string, or the like that can uniquely identify the session.
- Step 502 The first UE sends a bearer setup request procedure to the third P-GW, where the bearer setup request carries the information of the second UE and the third UE, and the distribution indication, where the information may be the second UE and the third UE. Address information or user ID.
- the first UE sends a bearer setup request to the first eNB, and the first eNB sends the bearer setup request to the first S-GW, and the first S-GW sends the bearer setup request to the third P_GW.
- Step 503 The third P-GW returns a response message to the first UE, and establishes a connection between the first UE and the third P_GW, that is, establishes a bearer between the first UE and the third P-GW. Specifically, the third P-GW sends a response message to the first S-GW, and the first S-GW sends a response message to the first eNB, and the first eNB sends a response message to the first UE.
- the first UE further performs head compression negotiation with the third P_GW.
- Step 502 ′ the second UE and the third UE respectively initiate a bearer setup request to the third P-GW, where the bearer setup request carries the convergence identifier, and the convergence identifier carried in the bearer setup request initiated by the second UE and the third UE is the same .
- the second UE and the third UE may send a bearer setup request to the base station to which the respective UE belongs, and the eNB to which the second UE and the third UE belong to send the bearer setup request to the second S-GW, and the second S-GW
- the bearer setup request sent by the second UR and the third UR is sent to the third P_GW.
- Step 503 ′ the third P-GW determines whether the convergence identifiers carried in the bearer setup request initiated by the second UE and the third UE are the same, and if the same, establish a multicast bearer channel for the second UE and the third UE.
- Step 504 ′ the third P-GW returns a response message to the second UE and the third UE to establish a connection between the second UE and the third P-GW and a connection between the third UE and the third P-GW, that is, And establishing a bearer between the second UE and the third P-GW and a bearer between the third UE and the third P-GW.
- the second UE, the third UE, and the third P-GW perform head compression negotiation.
- Step 505 The first UE sends the data packet to the third P-GW after being compressed by the header.
- the packet compressed by the header is the same for all receiving terminals.
- Step 506 After receiving the data packet sent by the first UE, the third P-GW copies the data packet into two, and negotiates the data according to the header compression previously performed with the first UE.
- the packet is subjected to header decompression, and different header decompression is performed for different receiving terminals.
- the destination addresses of the data packets after the header decompression are the second UE and the third UE, respectively.
- Step 507 The third P-GW performs the data packet after being decompressed by the header, and sends the data packet sent to the second UE and the third UE according to the header compression negotiation performed by the second UE and the third UE.
- Head compression going through the head
- the compressed data packet is sent to the second UE and the third UE by using the multicast bearer channel established in step 503 ' in a multicast manner.
- the first network side device and the second network side device are equivalent to being integrated in the third P-GW, and the third P-GW implements the first network side device and the second network side device.
- FIG. 8 is a network diagram of a fixed network and a mobile network, in which the transmitting terminal A is a fixed terminal, the receiving terminal B and the receiving terminal C are mobile terminals, and the transmitting terminal is shown in FIG. A accesses the Internet through the Internet server, and the receiving terminal B and the receiving terminal C access the network through the second eNB, the second S-GW, and the second P_GW.
- the method of implementing data sharing can be as shown in Figure 9.
- the signaling interaction diagram of Embodiment 6 of the method for implementing data sharing according to the present invention includes:
- Step 601 The transmitting terminal A exchanges application layer signaling with the receiving terminal B and the receiving terminal C, respectively, to prepare for data sharing.
- the application layer signaling of the interaction between the sending terminal A and the receiving terminal B and the receiving terminal C carries a session identifier, and the session identifier is unique in the network, and the session identifier may include the identifier of the sending terminal A and a random identifier. Or the session identifier can be other numbers, strings, etc. that can uniquely identify the session.
- Step 602 The sending terminal A initiates a session establishment request to the Internet server, where the session establishment request carries the information of the receiving terminal B and the receiving terminal C, and the distribution indication, where the information may be the address information or the user of the receiving terminal B and the receiving terminal C. logo.
- Step 603 The Internet server returns a response message to the sending terminal A, and establishes a connection between the sending terminal A and the Internet server, that is, establishes a session between the sending terminal A and the Internet server.
- Step 602 ′ the receiving terminal B and the receiving terminal C respectively initiate a bearer setup request to the second S-GW, where the bearer setup request carries the convergence identifier, and the convergence identifier carried in the bearer setup request initiated by the receiving terminal B and the receiving terminal C is the same.
- Step 603 ′ the second S-GW determines whether the aggregation identifiers carried in the bearer setup request initiated by the receiving terminal B and the receiving terminal C are the same. If the same, the receiving terminal B and the receiving terminal C establish a multicast bearer channel.
- Step 604 ′ the second S-GW returns a response message to the receiving terminal B and the receiving terminal C, and establishes a connection between the receiving terminal B and the receiving terminal C and the second S-GW, that is, establishes the receiving terminal B and the receiving terminal C and Bearer between the second S-GW.
- the receiving terminal B, the receiving terminal C and the second S-GW Perform head compression negotiation.
- Step 605 The sending terminal A sends the data packet to the internet server.
- Step 606 After receiving the data packet sent by the terminal A, the Internet server copies the received data packet into two copies according to the information of the receiving terminal B and the receiving terminal C carried in the session initiation request in step 602 and the distribution instruction. And setting the destination address of the data packet to the address of the receiving terminal B and the receiving terminal C, and transmitting the data packet to the receiving terminal B and the second S_GW to which the receiving terminal C belongs.
- Step 607 The second S-GW receives the data packet sent by the Internet server, and performs the video data packet sent to the receiving terminal B and the receiving terminal C according to the header compression negotiation previously performed by the receiving terminal B and the receiving terminal C.
- the header is compressed, and the data packet compressed by the header is transmitted to the receiving terminal B and the receiving terminal by using the multicast bearer channel established in step 603 ' in a multicast manner.
- the first network side device is an Internet server
- the second network side device is second.
- the transmitting terminal D is a mobile terminal
- the receiving terminal R and the receiving terminal F are fixed terminals
- the transmitting terminal D is connected to the first eNB
- the first eNB is connected to the first P-GW through the first S-GW.
- the receiving terminal E and the receiving terminal F are connected to the Internet server.
- the method for implementing the data sharing service may be as shown in FIG.
- FIG. 11 is a signaling interaction diagram of Embodiment 7 of a method for implementing data sharing according to the present invention, including:
- Step 701 The transmitting terminal D exchanges application layer signaling with the receiving terminal E and the receiving terminal F, respectively, to prepare for data sharing.
- the application layer signaling of the interaction between the sending terminal D and the receiving terminal E and the receiving terminal F carries a session identifier, and the session identifier is unique in the network, and the session identifier may include an identifier of the sending terminal D and a random identifier. Or the session identifier can be other numbers, strings, etc. that can uniquely identify the session.
- Step 702 The sending terminal D initiates a bearer setup request to the first P-GW, where the bearer setup request carries information of the receiving terminal E and the receiving terminal F, and an allocation indication, where the information may be the address of the receiving terminal E and the receiving terminal F. Information or user ID.
- the sending terminal D sends a bearer setup request to the first eNB, and the first eNB sends a bearer setup request to the first S-GW, and the first S-GW sends the bearer setup request to the first P_GW.
- Step 703 The first P-GW returns a response message to the sending terminal D, and establishes a connection between the sending terminal and the first P-GW, that is, establishes a bearer between the transmitting terminal D and the first P-GW. Specifically, the first P-GW sends a response message to the first S-GW, the first S-GW sends a response message to the first eNB, and the first eNB sends a response message to the sending terminal D. In the process of performing steps 702 and 703, the transmitting terminal D also performs head compression negotiation with the first P-GW.
- Step 702 ′ the receiving terminal E and the receiving terminal F respectively initiate a session establishment request to the Internet server, where the session establishment request carries the aggregation identifier, and the convergence identifier carried in the session establishment request initiated by the receiving terminal E and the receiving terminal F is the same.
- step 703 the Internet server determines whether the aggregation identifiers carried in the session establishment request initiated by the receiving terminal E and the receiving terminal F are the same. If the same, the receiving terminal E and the receiving terminal F establish a multicast group.
- Step 704 ′ the Internet server returns a response message to the receiving terminal E and the receiving terminal F, and establishes a connection between the Internet server and the receiving terminal E and the receiving terminal F, and the response message carries related information of the multicast transmission, such as the receiving terminal E.
- the receiving terminal E and the receiving terminal F can join the established multicast group according to the existing Internet protocol, and prepare to receive the data packet.
- Step 705 The sending terminal D compresses the data and sends the data to the first P_GW.
- the packet compressed by the header is the same for all receiving terminals.
- Step 706 After receiving the data packet, the first P-GW, according to the information obtained in step 702, performs header decompression on the data packet according to the header compression negotiation previously performed with the transmitting terminal D.
- the packet after the header is decompressed is copied, and the address of the packet is set to the address of the receiving terminal E and the receiving terminal F.
- the first P-GW sends the decompressed data packet to the Internet server according to the information of the receiving terminal E and the receiving terminal F carried in the session initiation request in step 702 and the distribution instruction.
- Step 707 The Internet server receives the data packet, and according to the multicast group information of the multicast transmission established by the receiving terminal E and the receiving terminal F, multicasts the data packet to the receiving terminal E through the multicast group. And receiving terminal F.
- the first network side device is a first P-GW
- the second network side device is an Internet server.
- FIG. 12 shows an Internet according to an embodiment of the present invention.
- the transmitting terminal H, the receiving terminal 1 and the receiving terminal J are fixed terminals in the internet.
- the transmitting terminal H, the receiving terminal 1 and the receiving terminal J are both connected to an internet server.
- the method for implementing the data sharing service can be as shown in FIG.
- FIG. 13 is a signaling interaction diagram of Embodiment 8 of the method for implementing data sharing according to the present invention, including: Step 801:
- the sending terminal H interacts with the receiving terminal I and the receiving terminal J to perform application layer signaling, respectively, for performing data sharing. ready.
- Step 802 The sending terminal initiates a session establishment request to the Internet server, where the session establishment request carries information about the receiving terminal I and the receiving terminal J, and an allocation indication, where the information may be address information or a user of the receiving terminal 1 and the receiving terminal J. logo.
- Step 803 The Internet server returns a response message to the sending terminal H, and establishes a connection between the sending terminal H and the Internet server, that is, establishes a session between the sending terminal H and the Internet server.
- Step 802 ′ the receiving terminal 1 and the receiving terminal J respectively initiate a session establishment request to the Internet server, and the session establishment request carries the aggregation identifier, and the convergence identifier carried in the session establishment request initiated by the receiving terminal 1 and the receiving terminal J is the same.
- Step 803 ′ the Internet server determines whether the aggregation identifiers carried in the session establishment request initiated by the receiving terminal I and the receiving terminal J are the same. If the same, the receiving terminal I and the receiving terminal J establish a multicast group.
- Step 804 ′ the Internet server returns a response message to the receiving terminal 1 and the receiving terminal J, and establishes a connection between the Internet server and the receiving terminal I and the receiving terminal J, and the response message carries related information of the multicast transmission, such as receiving terminal I.
- the receiving terminal T and the receiving terminal J can join the established multicast group according to the existing Internet protocol, and prepare to receive the data packet.
- Step 805 The sending terminal H sends the data packet to the internet server.
- Step 806 After receiving the data packet, the Internet server sends the data packet to the receiving terminal according to the multicast group information of the multicast transmission established by the receiving terminal 1 and the receiving terminal J in a multicast manner. I and receiving terminal J.
- the first network side device and the second network side device are equivalent to being integrated in an Internet server, and the Internet server implements functions of the first network side device and the second network side device.
- the number of receiving terminals is 2. In fact, the number of receiving terminals may be one, or may be multiple, and is not limited to two. When the number of receiving terminals is greater than two, the implementation process is similar to the implementation process of the foregoing two receiving terminals.
- FIG. 14 is a schematic structural diagram of an embodiment of a first network side device according to the present invention.
- the device includes: a first connection establishing module 51 and a first distribution module 52, where the first connection establishing module 51 and the first distribution module 52 are connected.
- the first connection establishing module 51 is configured to receive a service request sent by the sending terminal, and establish a connection between the sending terminal and the first network side device, where the service request sent by the sending terminal carries information of the receiving terminal; And receiving the data packet sent by the sending terminal, and sending the data packet to the second network side device to which the receiving terminal belongs according to the information of the receiving terminal received by the first connection establishing module 51.
- the first distribution module 52 is specifically configured to receive a data packet sent by the sending terminal, and send the data packet according to information and a distribution indication of the receiving terminal carried in the service request sent by the sending terminal.
- the data is copied into N shares, and each data packet is transmitted to the second network side device to which each receiving terminal belongs.
- the address in each data packet may be replaced by the address of each receiving terminal, or the identifier in the data packet may be replaced by the identifier of each receiving terminal, and then each data packet is sent.
- a second network side device that is assigned to each receiving terminal.
- the first connection establishing module 51 is further configured to perform head compression negotiation with the sending terminal.
- the first distribution module 52 may be specifically configured to receive data after the header compression sent by the sending terminal. The packet is decompressed by the header, and the data packet is copied into N shares according to the information and the distribution instruction of the receiving terminal carried in the service request sent by the sending terminal, and each data packet is sent to each receiving terminal.
- the second network side device Specifically, after copying the data packet into N shares, the address in each data packet may be replaced by the address of each receiving terminal, or the identifier in the data packet may be replaced by the identifier of each receiving terminal, and then each data packet is sent. A second network side device that is assigned to each receiving terminal.
- FIG. 15 is a schematic structural diagram of an embodiment of a second network side device according to the present invention, including a second connection establishing module 61 and a second distribution module 62, where the second distribution module 62 is connected to the second connection establishing module 61, where The second connection establishing module 61 is configured to receive a service request sent by the receiving terminal, to establish a connection between the receiving terminal and the second network side device, where the second distribution module 62 is configured to receive data sent by the first network side device. The packet is sent to the receiving terminal by the connection established by the second connection establishing module 61.
- the second connection establishing module 61 is specifically configured to receive a service request sent by the receiving terminal, where the service request carries a convergence identifier, and establish a connection between the receiving terminal and the second network side device, where the service request is The receiving terminal carrying the same aggregation identifier establishes a multicast group.
- the second distribution module 62 is specifically configured to receive the data packet sent by the first network side device, and send the data packet to the multicast group established by the second connection establishing module 61. For each receiving terminal.
- the second connection establishing module 61 is specifically configured to receive a service request sent by the receiving terminal, where the service request carries a convergence identifier, and establish a connection between the receiving terminal and the second network side device.
- a multicast bearer channel is established for the receiving terminal that carries the same aggregation identifier in the service request.
- the second distribution module 62 is specifically configured to receive the data packet sent by the first network side device, compress the data packet, and pass the data packet.
- the multicast bearer channel established by the second connection establishing module 61 is sent to each receiving terminal.
- FIG. 16 is a schematic structural diagram of a system for implementing data sharing according to the present invention, including a first network side device 5 as shown in FIG. 14 and a second network side device 6 shown in FIG. 15, a first network side.
- First point in device 5 The transmitting module 52 is connected to the second connection establishing module 61 in the second network side device 6.
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Description
实现数据共享的方法及系统和网络侧装置
本申请要求于 2009年 8月 3日提交中国专利局、 申请号为 200910090253. 1、 发明 名称为 "实现数据共享的方法及系统和网络侧装置" 的中国专利申请的优先权,其全部 内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术, 尤其涉及一种实现数据共享的方法及系统和网络侧装 置。 发明背景
伴随 Web 2. 0概念的广泛应用, 用户越来越希望把自己的想法、 观点和所见所得主 动地分享给其他用户。 目前, 在互联网上存在大量的应用, 例如博客 (Blog ) , 播客 (podcast ) 等, 在一定程度上满足了用户的这种需求。 并且, 随着无线接入技术的发 展, 无线接 U的带宽大大提高, 使得用户可以通过无线的方式使用原有互联网提供的业 务,同时由于无线无所不在的特性,使得用户通过无线互联网可以得到更好的业务感受。
于是, 视频共享业务应运而生。 通过视频共享业务, 用户可以实时地将自己希望分 享的视频通过无线网络分享给其他用户。
现有技术中提出了视频共享业务的概念, 但是没有提供实现视频共享业务的方法。 发明内容
本发明实施例针对现有技术中存在的问题,提供一种实现数据共享的方法及系统和 网络侧装置, 能够实现不同用户终端之间的视频等数据共享。
本发明实施例提供了一种实现数据共享的方法, 包括:
第一网络侧装置接收发送终端发送的业务请求,建立所述发送终端与所述第一网络 侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息;
第一网络侧装置接收所述发送终端发送的数据包, 根据所述接收终端的信息, 将所 述数据包发送给所述接收终端归属的第二网络侧装置。
本发明实施例还提供了一种实现数据共享的方法, 包括:
第二网络侧装置接收接收终端发送的业务请求,建立所述接收终端与所述第二网络 侧装置之间的连接;
所述第二网络侧装置接收第一网络侧装置发送的数据包, 通过所述连接, 将所述数 据包发送给所述接收终端。
本发明实施例还提供了一种第一网络侧装置, 包括:
第一连接建立模块, 用于接收发送终端发送的业务请求, 建立所述发送终端与所述 第一网络侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息; 第一分发模块, 用于接收所述发送终端发送的数据包, 根据所述第一连接建立模块 接收到的接收终端的信息, 将所述数据包发送给所述接收终端归属的第二网络侧装置。
本发明实施例还提供了一种第二网络侧装置, 包括:
第二连接建立模块, 用于接收接收终端发送的业务请求, 为建立所述接收终端与所 述第二网络侧装置之间的连接;
第二分发模块, 用于接收第一网络侧装置发送的数据包, 通过所述第二连接建立模 块建立的连接, 将所述数据包发送给所述接收终端。
本发明实施例还提供了一种实现数据共享的系统,包括第一网络侧装置和第二网络 侧装置;
所述第一网络侧装置包括:
第一连接建立模块, 用于接收发送终端发送的业务请求, 建立所述发送终端与所述 第一网络侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息; 第一分发模块, 用于接收所述发送终端发送的数据包, 根据所述第一连接建立模块 接收到的接收终端的信息, 将所述数据包发送给所述接收终端归属的第二网络侧装置; 所述第二网络侧装置包括:
第二连接建立模块, 用于接收接收终端发送的业务请求, 为建立所述接收终端与所 述第二网络侧装置之间的连接;
第二分发模块, 用于接收所述第一网络侧装置发送的数据包, 通过所述第二连接建 立模块建立的连接, 将所述数据包发送给所述接收终端。
本发明实施例中, 发送终端给第一网络侧装置的业务请求中携带有接收终端的信 息, 这样第一网络侧装置接收到发送终端发送的数据后, 就可以根据接收终端的信息, 将数据发送给接收终端归属的第二网络侧装置,第二网络侧装置将接收到的数据发送给 接收终端, 实现了数据共享。 并且, 由于不需要发送终端将数据发送给网络侧专用的应 用服务器来处理数据, 而是使发送终端和接收终端之间直接进行数据传输, 可以减小数 据传输时的延迟。
下面通过附图和实施例, 对本发明的技术方案做进一步的详细描述。 附图简要说明
图 1所示为本发明实现数据共享的方法实施例一流程图;
图 2所示为本发明实现数据共享的方法实施例二流程图;
图 3所示为本发明实施例中涉及到的一种 LTE网络结构示意图;
图 4所示为本发明实现数据共享的方法实施例三的信令交互图;
图 5所示为本发明实现数据共享的方法实施例四的信令交互图;
图 6所示为本发明实施例中涉及到的另一种 LTE网络结构示意图;
图 7所示为本发明实现数据共享的方法实施例五的信令交互图;
图 8所示为本发明实施例中涉及到的一种固定网络与移动网络融合的网络; 图 9所示为本发明实现数据共享的方法实施例六的信令交互图;
图 10所示为本发明实施例中涉及到的另一种固定网络与移动网络融合的网络; 图 11所示为本发明实现数据共享的方法实施例七的信令交互图;
图 12所示为本发明实施例中涉及到的一种互联网;
图 13所示为本发明实现数据共享的方法实施例八的信令交互图;
图 14所示为本发明第一网络侧装置实施例的结构示意图;
图 15所示为本发明第二网络侧装置实施例的结构示意图;
图 16所示为本发明实现数据共享的系统实施例的结构示意图。 实施本发明的方式
如图 1所示为本发明实现数据共享的方法实施例一流程图, 包括:
步骤 101、 第一网络侧装置接收发送终端发送的业务请求, 建立发送终端与第一网 络侧装置的连接, 发送终端发送的业务请求中携带有接收终端的信息。 发送终端发送的 业务请求中携带的接收终端的信息可以是接收终端的地址或者接收终端的标识等信息。
步骤 102、 第一网络侧装置接收发送终端发送的数据包, 根据接收终端的信息, 将 数据包发送给接收终端归属的第二网络侧装置。
当接收终端的数量 N大于 1时, 发送终端发送的业务请求中还携带有分发指示, 分 发指示用于通知第二网络侧装置将收到的数据包进行复制并发送给不同的接收终端。
步骤 102具体可以包括: 第一网络侧装置接收发送终端发送的数据包, 根据发送终
端发送的业务请求中携带的接收终端的信息和分发指示, 将数据包复制成 N份, 并将各 个数据包发送给各个接收终端归属的第二网络侧装置。例如, 如果发送终端发送的业务 请求中携带的接收终端的信息是接收终端的地址,则第一网络侧装置接收发送终端发送 的数据包, 根据发送终端发送的业务请求中携带的接收终端的信息和分发指示, 将数据 包复制成 N份, 将各份数据包中的地址用各个接收终端的地址替换, 并将各个数据包发 送给各个接收终端归属的第二网络侧装置。如果发送终端发送的业务请求中携带的接收 终端的信息是接收终端的标识, 则第一网络侧装置接收发送终端发送的数据包, 根据发 送终端发送的业务请求中携带的接收终端的信息和分发指示, 将数据包复制成 N份, 将 各份数据包中的标识用各个接收终端的标识替换, 并将各个数据包发送给各个接收终端 归属的第二网络侧装置。
步骤 101中, 第一网络侧装置接收发送终端发送的业务请求, 建立发送终端与所述 第一网络侧装置的连接的过程中, 还可以与发送终端进行头部压缩协商。 步骤 102具体 可以包括: 第一网络侧装置接收发送终端发送的经过头部压縮之后的数据包, 将该数据 包进行头部解压縮, 根据发送终端发送的业务请求中携带的接收终端的信息和分发指 示,将数据包复制成 N份,并将各个数据包发送给各个接收终端归属的第二网络侧装置。 发送终端发送的数据包是针对每一个接收终端发送的,发送终端发送的数据包中目的地 址、接收方标识等信息均不同,第一网络侧装置在建立与发送终端之间的连接的过程中, 可以与发送终端进行头部压缩协商, 消除发送给不同的接收终端的数据包的差异, 使得 经过发送终端进行头部压缩后的数据对于不同的接收方均相同。
如图 2所示为本发明实现数据共享的方法实施例二流程图, 包括:
步骤 201、 第二网络侧装置接收接收终端发送的业务请求, 建立接收终端与第二网 络侧装置之间的连接。
步骤 202、 第二网络侧装置接收第一网络侧装置发送的数据包, 通过步骤 201中建 立的连接, 将数据包发送给接收终端。
当第二网络侧装置为互联网服务器, 并且接收终端的数量 N大于 1时, 步骤 201具 体可以包括: 第二网络侧装置接收接收终端发送的业务请求, 业务请求中携带有汇聚标 识, 建立所述接收终端与所述第二网络侧装置之间的连接, 为业务请求中携带相同汇聚 标识的接收终端建立多播组。 步骤 202具体可以包括: 第二网络侧装置接收第一网络侧 装置发送的数据包, 将数据包通过所述多播组发送给各个接收终端。 发送终端发送的数 据包是针对每一个接收终端发送的, 对于不同的接收终端, 发送终端发送的数据包中目
的地址、接收方标识等信息均不同, 第二网络侧装置需要与不同的接收终端建立不同的 连接来发送不同的数据包给接收终端。为了减少第二网络侧装置与接收终端之间建立的 连接数量, 节约资源, 第二网络侧装置可以为业务请求中携带相同汇聚标识的接收终端 建立多播组。
当第二网络侧装置为接入网装置, 并且接收终端的数量 N大于 1时, 步骤 201具体 可以包括:第二网络侧装置接收接收终端发送的业务请求,业务请求中携带有汇聚标识, 建立所述接收终端与所述第二网络侧装置之间的连接,为业务请求中携带相同汇聚标识 的接收终端建立多播承载通道。 步骤 202具体可以包括: 第二网络侧装置接收第一网络 侧装置发送的数据包, 将数据包进行头部压缩, 将经过头部压缩之后的数据包通过多播 承载通道发送给各个接收终端。
前述实施例中, 发送终端发送给第一网络侧装置的业务请求可以是承载建立请求, 也可以是会话建立请求,或者也可以是其他用于建立发送终端和第一网络侧装置的连接 的业务请求。接收终端发送给第二网络侧装置的业务请求可以是承载建立请求, 也可以 是会话建立请求,或者也可以是其他用于建立接收终端和第二网络侧装置的连接的业务 请求。
本发明实施例中提供的方法,发送终端给第一网络侧装置的业务请求中携带有接收 终端的信息, 这样第一网络侧装置接收到发送终端发送的数据后, 就可以根据接收终端 的信息, 将数据发送给接收终端归属的第二网络侧装置, 第二网络侧装置将接收到的数 据发送给接收终端, 实现了数据共享。 并且, 由于不需要发送终端将数据发送给网络侧 专用的应用服务器来处理数据, 而是使发送终端和接收终端之间直接进行数据传输, 可 以减小数据传输时的延迟。
本发明实施例还提供一种实现数据共享的方法, 包括:
步骤 Al、第一网络侧装置接收发送终端发送的业务请求,建立所述发送终端与所述 第一网络侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息; 步骤 A2、第一网络侧装置接收所述发送终端发送的数据包,根据所述接收终端的信 息, 将所述数据包发送给所述接收终端归属的第二网络侧装置;
步骤 A3、第二网络侧装置接收接收终端发送的业务请求,建立所述接收终端与所述 第二网络侧装置之间的连接;
步骤 A4、 所述第二网络侧装置接收第一网络侧装置发送的数据包, 通过所述连接, 将所述数据包发送给所述接收终端。
该实施例中, 步骤 A3可以在步骤 A1之前进行, 或者步骤 A3可以与步骤 A1同时进 行, 或者步骤 A3可以在步骤 A1之后步骤 A2之前进行, 只要保证在步骤 A2进行之前, 第一网络侧装置与发送终端之间的连接建立完成, 并且第二网络侧装置与接收终端之间 的连接建立完成即可。
所谓数据共享, 可以是移动网络中的终端之间的数据共享, 可以是移动网络中的终 端与互联网中的终端(例如计算机)之间数据共享, 还可以是互联网中的终端之间的数 据共享。 本发明各实施例中, 第一网络侧装置可以是接入网装置或者互联网服务器。 接 入网装置是指用于将移动终端接入到网络的接入网中的各个网元。例如, 接入网可以是 长期演进(Long Term Evolution, 简称 LTE)网络、微波存取全球互通技术论坛(WiMAX) 网络、 WCDMA网络和互联网等用于实现接入功能的网络。 第二网络侧装置也可以是接入 网装置或互联网服务器。在 LTE网络中, 接入网装置可以包括发送终端和接收终端归属 的移动性管理单元 (Mobility Management Entity, 简称 MME)。 或者, 接入网装置可以 包括发送终端和接收终端归属的演进型基站(eNB)。 或者, 接入网装置可以包括发送终 端和接收终端归属的服务网关(Serving Gateway, 简称 S_GW)。 或者接入网装置可以包 括发送终端和接收终端归属的分组数据网网关 (Packet Data Network Gateway, 简称 P-GW), 等等。 在 WCDMA网络中, 接入网装置可以包括发送终端和接收终端归属的网关 GSN (Gateway GSN, 简称 GGSN)、 服务 GPRS支持节点 (Serving GPRS Support Node, 简称 SGSN) 或无线网络控制器 (Radio Network Controller, 简称 RNC) 等。 在 WiMAX 网络中,接入网装置可以包括发送终端和接收终端归属的基站(Base Station,简称 BS ) 或接入服务网络 (Access Service Network, 简称 ASN) 等。 发送终端和接收终端可以 归属于不同的 MME、 eNB、 S_GW、 P- GW、 GGSN、 SGSN, BS、 ASN等, 也可以归属于相同的 MME、 eNB、 S- GW、 P- GW、 GGSN、 SGSN, BS、 ASN等。
下面以 LTE网络为例, 说明数据共享的实现方法。
如图 3所示为本发明实施例中涉及到的一种 LTE网络结构示意图, 第一 UE11归属 于第一 eNB12, 第二 UE21归属于第二 eNB22, 第三 UE31归属于第三 eNB32, 第一 eNB12 归属于第一 MME13, 第二 eNB22归属于第二 MME23, 第三 eNB32也归属于第二 MME23。第 一 MME13归属于第一 P-GW14, 第二 MME23归属于第二 P_GW24。 图 3分别示出了视频数 据和应用层信令的传输路径。图 3中的第一 MME13和第二 MME23分别可以被替换为第一 eNB12归属的第一 S-GW和第二 eNB22归属的第二 S_GW。
基于图 3所示的结构, 本发明数据共享的实现方法如图 4所示。 如图 4所示为本发
明实现数据共享的方法实施例三的信令交互图, 包括:
步骤 301、第一 UE分别与第二 UE和第三 UE交互应用层信令,为进行数据共享做准 备。 第一 UE是发送终端, 第二 UE和第三 UE是接收终端。 具体的应用层信令交互路径 可以参见图 3, 第一 UE可以通过第一 eNB、 第一 MME、 第一 P_GW、 第二 P_GW、 第二 MME 和第二 eNB与第二 UE进行应用层信令交互, 第一 UE可以通过第一 eNB、 第一醒 E、 第 一 P-GW、 第二 P-GW、 第二 MME和第三 eNB与第三 UE进行应用层信令交互。
步骤 302、 第一 UE向第一 MME发起承载建立请求, 该承载建立请求中携带有第二 UE和第三 UE的信息以及分发指示, 该信息可以是第二 UE和第三 UE的地址信息或用户 标识。
步骤 303、 第一 S-GW向第一 UE返回应答消息, 建立第一 UE与第一 S_GW之间的连 接, 即建立第一 UE与第一 S-GW之间的承载。
步骤 302 '、 第二 UE和第三 UE分别向第二 S-GW发起承载建立请求。
步骤 303 '、第二 S-GW分别向第二 UE和第三 UE返回应答消息,建立第二 S-GW与第 二 UR/第三 UE之间的连接, 即建立第二 S-GW与第二 UE与之间的承载以及第二 S-GW与 第三 UE之间的承载。
步骤 304、 第一 UE发送数据包给第一 S_GW。
步骤 305、第一 S-GW根据步骤 302中承载建立请求中携带的第二 UE和第三 UE的信 息, 将接收到的数据包发送给第二 UE和第三 UE归属的第二 S_GW。 具体地, 第一 S-GW 将接收到的数据包复制成二份, 将数据包中的目的地址分别设置成各个接收终端的地 址, 然后将数据包发送给第二 UE和第三 UE归属的第二 S_GW。
步骤 306、第二 S-GW接收到用于发送给第二 UE和第三 UE的数据包后,根据数据包 中的目的地址, 通过步骤 303 ' 中建立的承载, 分别将接收到的数据包发送给第二 UE 和第三 UE。
实施例三中, 步骤 302、 303和步骤 302 '、 303 ' 可以同时进行, 也可以先后进行, 只要保证在步骤 304进行之前,第一 UE和接入网之间的承载以及第二 UE、第三 UE和接 入网之间的承载建立好即可。
如图 5所示为本发明实现数据共享的方法实施例四的信令交互图, 包括: 步骤 401、第一 UE分别与第二 UE和第三 UE交互应用层信令,为进行数据共享做准 备。具体的应用层信令交互路径可以参见图 3。第一 UE与第二 UE和第三 UE之间交互的 应用层信令中携带有会话标识, 该会话标识在网络中是唯一的, 该会话标识可以包括第
一 UE的标识和一个随机标识, 或者该会话标识可以是其他的数字、 字符串等能够唯一 标识该会话的标识。
步骤 402、 第一 UE向第一 S-GW发起承载建立请求, 该承载建立请求中携带有第二 UE和第三 UE的信息以及分发指示, 该信息可以是第二 UE和第三 UE的地址信息或用户 标识。
步骤 403、 第一 S-GW向第一 UE返回应答消息, 建立第一 UE与第一 S_GW之间的连 接, 即建立第一 UE与第二 S-GW之间的承载。
在进行步骤 402和 403的过程中, 第一 UE还和第一 S-GW进行头部压縮协商。 步骤 402 '、 第二 UE和第三 UE分别向第二 S-GW发起承载建立请求, 承载建立请求 中携带汇聚标识, 第二 UE和第三 UE发起的承载建立请求中携带的汇聚标识相同。
步骤 403 '、 第二 S-GW判断第二 UE和第三 UE发起的承载建立请求中携带的汇聚标 识是否相同, 如果相同则为第二 UE和第三 UE建立一条多播承载通道。
步骤 404,、第二 S-GW向第二 UE和第三 UE返回应答消息,建立第二 UE与第二 S-GW 之间的连接以及第三 UE与第二 S-GW之间的连接, 即建立第二 UR与第二 S-GW之间的承 载以及第三 UE与第二 S-GW之间的承载。
在进行步骤 402,、 403 ' 和 404, 的过程中, 第二 UE、 第三 UE还和第二 S_GW进行 头部压縮协商。 此处头部压縮协商是指交互头部压縮上下文, 在网络侧第二 S-GW中维 护第二 UE和第三 UE的头不压缩上下文, 以保证发给不同接收终端的相同内容的数据包 在经过头部压缩后的结果相同, 同时不同接收终端也会维护头部压缩上下文, 可以根据 自身维护的头部压縮上下文解压縮数据包, 恢复出发送给自身的数据包。
步骤 405、 第一 UE将数据包经过头部压缩后发送给第一 S_GW。 经过头部压缩后的 数据包对于所有的接收终端均相同。 具体地, 第一 UE可以根据现有的鲁棒性头部压縮 ( RoHC ) 技术或者载荷头部压縮 (payload header suppressed, 简称 PHS ) 等方法进行 头部压缩。
步骤 406、第一 S-GW接收到第一 UE发送的数据包后,根据步骤 402中得到的信息, 将得到的数据包根据之前与第一 UE进行的头部压縮协商, 对数据包进行头部解压縮, 将头部解压缩之后的视频数据包复制成二份,并将数据包的目的地址分别替换为第二 UE 和第三 UE的地址。第一 S-GW将头部解压缩后的数据包发送给第二 UE和第三 UE归属的 第二 S-GW。 第一 S-GW将数据包发送给第二 S-GW方式可以是标准的 IP路由方式, 第一 S-GW将数据包发送到核心网或互联网后,核心网或互联网根据目的地址将数据包路由到
第二 S-GW的家乡代理(Home Agent , 简称 HA), 然后再由 HA根据移动 IP的注册信息转 发到接入网; 或者也可以在第一 S-GW提供本地路由的支持, 由第一 S-GW根据其维护的 目的地址路由信息直接在接入网内部路由, 不经过核心网 HA处理, 以节省承载网资源。
步骤 407、 第二 S-GW接收第一 S-GW发送的数据包, 并根据之前与第二 UE和第三 UE进行的头部压縮协商,将发送给第二 UE和第三 UE的数据包进行头部压縮,将经过头 部压缩后的数据包, 采用多播的方式, 通过步骤 403 ' 中建立的多播承载通道, 发送给 第二 UE和第三 UE。
实施例四中, 步骤 402、 403和步骤 402 '、 403 '、 404 ' 可以同时进行, 也可以先后 进行, 只要保证在步骤 405进行之前, 第一 UE和接入网之间的承载以及第二 UE、 第三 UE和接入网之间的多播承载通道建立好即可。
实施例四中, 第一 UE和第二 UE、第三 UE交互应用层信令的时候, 应用层信令中携 带会话标识。第二 UE、第三 UE向第二 S-GW发起的承载建立请求中携带一个与该会话标 识相对应的汇聚标识,这样第二 S-GW可以为第二 UE和第三 UE建立一条多播承载通道, 而无需分别为第二 UR和第三 UE建立承载通道, 节约了承载资源。 第一 UE向第一 S-GW 发起承载建立请求, 建立与接入网之间的承载的过程中, 第一 UE和第一 S-GW之间进行 头部压縮协商, 第一 UE发送给第一 S-GW的数据包是经过头部压縮之后的数据包。第一 S-GW将第一 UE发送的数据包进行头部解压縮之后,将数据包发送给第二 S-GW。第二 S-GW 将接收到的数据包进行不同的头部压缩, 然后通过一条多播承载通道, 将视频数据包发 送给第二 UE和第三 UE 。
图 4和图 5所示的实施例中,第一网络侧装置为第一 S-GW,第二网络侧装置为第二 如图 3所示的网络结构中, 第一 MME/第一 S-GW归属于第一 P-GW, 第二 MME/第二 S-GW归属于第二 P-GW,第一 MME/第一 S_GW和第二 MME/第二 S_GW也可以归属于同一个 P-GW。 如图 6所示为本发明实施例中涉及到的另一种 LTE网络结构示意图。 在图 6中, 第一 MME/第一 S-GW13和第二 MME/第二 S-GW23均归属于第三 P-GW34。
对于如图 6所示的网络结构, 实现数据共享的方法可以如图 7所示。 如图 7所示为 本发明实现数据共享的方法实施例五的信令交互图, 包括:
步骤 501、第一 UE分别与第二 UE和第三 UE交互应用层信令,为进行数据共享做准 备。具体的应用层信令交互路径可以参见图 6。第一 UE与第二 UE和第三 UE之间交互的 应用层信令中携带有会话标识, 该会话标识在网络中是唯一的, 该会话标识可以包括第
一 UE的标识和一个随机标识, 或者该会话标识可以是其他的数字、 字符串等能够唯一 标识该会话的标识。
步骤 502、 第一 UE向第三 P-GW发送承载建立请求过程, 在该承载建立请求中携带 有第二 UE和第三 UE的信息以及分发指示, 该信息可以是第二 UE和第三 UE的地址信息 或用户标识。具体地, 第一 UE将承载建立请求发送给第一 eNB, 第一 eNB将承载建立请 求发送给第一 S-GW, 第一 S-GW再将承载建立请求发送给第三 P_GW。
步骤 503、 第三 P-GW向第一 UE返回应答消息, 建立第一 UE与第三 P_GW之间的连 接, 即建立第一 UE与第三 P-GW之间的承载。 具体地, 第三 P-GW发送应答消息给第一 S-GW, 第一 S-GW将应答消息发送给第一 eNB, 第一 eNB再将应答消息发送给第一 UE。
在进行步骤 502和 503的过程中, 第一 UE还和第三 P_GW进行头部压缩协商。 步骤 502 '、 第二 UE和第三 UE分别向第三 P-GW发起承载建立请求, 该承载建立请 求中携带汇聚标识, 第二 UE和第三 UE发起的承载建立请求中携带的汇聚标识相同。 具 体地, 第二 UE和第三 UE可以向各自归属的基站发送承载建立请求, 第二 UE和第三 UE 各自归属的 eNB将该承载建立请求发送给第二 S-GW, 第二 S-GW将第二 UR和第三 UR发 送的承载建立请求发送给第三 P_GW。
步骤 503 '、 第三 P-GW判断第二 UE和第三 UE发起的承载建立请求中携带的汇聚标 识是否相同, 如果相同则为第二 UE和第三 UE建立一条多播承载通道。
步骤 504 ' 、第三 P-GW向第二 UE和第三 UE返回应答消息建立第二 UE和第三 P-GW 之间的连接以及第三 UE和第三 P-GW之间的连接, 即建立第二 UE和第三 P-GW之间的承 载及第三 UE和第三 P-GW之间的承载。
在进行步骤 502 '、 503 ' 和 04' 的过程中, 第二 UE、 第三 UE还和第三 P-GW进行头 部压縮协商。
步骤 505、 第一 UE将数据包经过头部压縮后发送给第三 P-GW。 经过头部压縮后的 数据包对于所有的接收终端均相同。
步骤 506、 第三 P-GW接收到第一 UE发送的数据包后, 将该数据包复制成二份, 并 将复制后的数据根据之前与第一 UE进行的头部压縮协商, 对数据包进行头部解压縮, 针对不同的接收终端进行不同的头部解压缩, 头部解压缩之后的数据包的目的地址分别 是第二 UE和第三 UE。
步骤 507、 第三 P-GW将经过头部解压縮之后的数据包, 根据之前与第二 UE和第三 UE进行的头部压缩协商,将发送给第二 UE和第三 UE的数据包进行头部压缩,将经过头
部压縮后的数据包, 采用多播的方式, 通过步骤 503 ' 中建立的多播承载通道, 发送给 第二 UE和第三 UE。
图 7所示的实施例中, 第一网络侧装置和第二网络侧装置相当于集成在第三 P-GW 中, 第三 P-GW实现了第一网络侧装置和第二网络侧装置的功能。
图 3和图 6所示的实施例中, 数据共享是在移动终端之间实现的, 数据共享还可以 在固定终端(例如, 互联网中的计算机)和移动终端之间实现。 如图 8所示为本发明实施 例中涉及到的一种固定网络与移动网络融合的网络, 在该网络中, 发送终端 A为固定终 端,接收终端 B和接收终端 C为移动终端,发送终端 A通过互联网服务器接入到互联网, 接收终端 B和接收终端 C通过第二 eNB、 第二 S-GW以及第二 P_GW接入到网络。
对于如图 8所示的网络, 实现数据共享的方法可以如图 9所示。 如图 9所示为本发 明实现数据共享的方法实施例六的信令交互图, 包括:
步骤 601、 发送终端 A分别与接收终端 B和接收终端 C交互应用层信令, 为进行数 据共享做准备。 具体的应用层信令交互路径可以参见图 8。 发送终端 A与接收终端 B和 接收终端 C之间交互的应用层信令中携带有会话标识, 该会话标识在网络中是唯一的, 该会话标识可以包括发送终端 A的标识和一个随机标识,或者该会话标识可以是其他的 数字、 字符串等能够唯一标识该会话的标识。
步骤 602、 发送终端 A向互联网服务器发起会话建立请求, 该会话建立请求中携带 有接收终端 B和接收终端 C的信息以及分发指示, 该信息可以是接收终端 B和接收终端 C的地址信息或用户标识。
步骤 603、 互联网服务器向发送终端 A返回应答消息, 建立发送终端 A和互联网服 务器之间的连接, 即建立发送终端 A和互联网服务器之间的会话。
步骤 602 '、 接收终端 B和接收终端 C分别向第二 S-GW发起承载建立请求, 承载建 立请求中携带汇聚标识,接收终端 B和接收终端 C发起的承载建立请求中携带的汇聚标 识相同。
步骤 603 '、 第二 S-GW判断接收终端 B和接收终端 C发起的承载建立请求中携带的 汇聚标识是否相同, 如果相同则为接收终端 B和接收终端 C建立一条多播承载通道。
步骤 604 '、 第二 S-GW向接收终端 B和接收终端 C返回应答消息, 建立接收终端 B 和接收终端 C与第二 S-GW之间的连接, 即建立接收终端 B和接收终端 C与第二 S-GW之 间的承载。
在进行步骤 602 '、 603 '和 604' 的过程中, 接收终端 B、接收终端 C还和第二 S-GW
进行头部压縮协商。
步骤 605、 发送终端 A将数据包发送给互联网服务器。
步骤 606、 互联网服务器接收到发送终端 A发送的数据包后, 互联网服务器根据步 骤 602中会话发起请求中携带的接收终端 B和接收终端 C的信息以及分发指示,将接收 到数据包复制成二份, 并将数据包的目的地址设置为接收终端 B和接收终端 C的地址, 将数据包发送给接收终端 B和接收终端 C归属的第二 S_GW。
步骤 607、 第二 S-GW接收互联网服务器发送的数据包, 并根据之前与接收终端 B 和接收终端 C进行的头部压縮协商,将发送给接收终端 B和接收终端 C的视频数据包进 行头部压缩, 将经过头部压缩后的数据包, 采用多播的方式, 通过步骤 603 ' 中建立的 多播承载通道, 发送给接收终端 B和接收终端 (:。
图 9 所示的实施例中, 第一网络侧装置为互联网服务器, 第二网络侧装置为第二 如图 10所示为本发明实施例中涉及到的另一种固定网络与移动网络融合的网络, 在该网络中, 发送终端 D为移动终端, 接收终端 R和接收终端 F为固定终端, 发送终端 D与第一 eNB连接, 第一 eNB通过第一 S-GW与第一 P-GW连接, 接收终端 E和接收终端 F与互联网服务器连接对于如图 10所示的网络, 实现数据共享业务的方法可以如图 11 所示。 如图 11所示为本发明实现数据共享的方法实施例七的信令交互图, 包括:
步骤 701、 发送终端 D分别与接收终端 E和接收终端 F交互应用层信令, 为进行数 据共享做准备。 具体的应用层信令交互路径可以参见图 10。 发送终端 D与接收终端 E 和接收终端 F之间交互的应用层信令中携带有会话标识,该会话标识在网络中是唯一的, 该会话标识可以包括发送终端 D的标识和一个随机标识,或者该会话标识可以是其他的 数字、 字符串等能够唯一标识该会话的标识。
步骤 702、发送终端 D向第一 P-GW发起承载建立请求,该承载建立请求中携带有接 收终端 E和接收终端 F的信息以及分配指示, 该信息可以是接收终端 E和接收终端 F的 地址信息或用户标识。 具体地, 发送终端 D向第一 eNB发送承载建立请求, 第一 eNB将 承载建立请求发送给第一 S-GW, 第一 S-GW将承载建立请求发送给第一 P_GW。
步骤 703、 第一 P-GW向发送终端 D返回应答消息, 建立发送终端和第一 P-GW之间 的连接, 即建立发送终端 D与第一 P-GW之间的承载。 具体地, 第一 P-GW向第一 S-GW 发送应答消息, 第一 S-GW向第一 eNB发送应答消息, 第一 eNB向发送终端 D发送应答 消息。
在进行步骤 702和 703的过程中, 发送终端 D还和第一 P-GW之间进行头部压縮协 商。
步骤 702 '、接收终端 E和接收终端 F分别向互联网服务器发起会话建立请求,会话 建立请求中携带汇聚标识,接收终端 E和接收终端 F发起的会话建立请求中携带的汇聚 标识相同。
步骤 703 '、互联网服务器判断接收终端 E和接收终端 F发起的会话建立请求中携带 的汇聚标识是否相同, 如果相同则为接收终端 E和接收终端 F建立一个多播组。
步骤 704'、互联网服务器向接收终端 E和接收终端 F返回应答消息,建立互联网服 务器与接收终端 E和接收终端 F之间的连接, 应答消息中携带多播传输的相关信息, 如 为接收终端 E和接收终端 F建立的多播组的地址等。
接收到应答消息后,接收终端 E和接收终端 F可以按照现有互联网协议加入建立的 多播组, 准备接收数据包。
步骤 705、 发送终端 D将数据经过头部压縮后发送给第一 P_GW。 经过头部压縮后的 数据包对于所有的接收终端均相同。
步骤 706、第一 P-GW接收到数据包后, 根据步骤 702中得到的信息, 将得到的数据 包根据之前与发送终端 D进行的头部压縮协商, 对数据包进行头部解压縮, 将头部解压 縮之后的数据包进行复制, 并将数据包的 的地址设置为接收终端 E和接收终端 F的地 址。 第一 P-GW根据步骤 702中会话发起请求中携带的接收终端 E和接收终端 F的信息 以及分发指示, 将头部解压缩后的数据包发送给互联网服务器。
步骤 707、 互联网服务器接收数据包, 并根据之前与接收终端 E和接收终端 F建立 的多播传输的多播组信息, 采用多播的方式, 将数据包通过多播组, 发送给接收终端 E 和接收终端 F。
图 11所示的实施例中, 第一网络侧装置为第一 P-GW, 第二网络侧装置为互联网服 务器。
如图 12所示为本发明实施例中涉及到的一种互联网, 在该网络中, 发送终端 H、接 收终端 I和接收终端 J均为互联网络中的固定终端。 发送终端 H、 接收终端 I和接收终 端 J均与互联网服务器连接。 对于如图 12所示的网络, 实现数据共享业务的方法可以 如图 13所示。如图 13所示为本发明实现数据共享的方法实施例八的信令交互图,包括: 步骤 801、 发送终端 H分别与接收终端 I和接收终端 J交互应用层信令, 为进行数 据共享做准备。
步骤 802、 发送终端好向互联网服务器发起会话建立请求, 该会话建立请求中携带 有接收终端 I和接收终端 J的信息以及分配指示, 该信息可以是接收终端 I和接收终端 J的地址信息或用户标识。
步骤 803、 互联网服务器向发送终端 H返回应答消息, 建立发送终端 H和互联网服 务器之间的连接, 即建立发送终端 H与互联网服务器之间的会话。
步骤 802'、接收终端 I和接收终端 J分别向互联网服务器发起会话建立请求,会话 建立请求中携带汇聚标识,接收终端 I和接收终端 J发起的会话建立请求中携带的汇聚 标识相同。
步骤 803 '、互联网服务器判断接收终端 I和接收终端 J发起的会话建立请求中携带 的汇聚标识是否相同, 如果相同则为接收终端 I和接收终端 J建立一个多播组。
步骤 804'、互联网服务器向接收终端 I和接收终端 J返回应答消息,建立互联网服 务器与接收终端 I和接收终端 J之间的连接, 应答消息中携带多播传输的相关信息, 如 为接收终端 I和接收终端 J建立的多播组的地址等。
接收到应答消息后,接收终端 T和接收终端 J可以按照现有互联网协议加入建立的 多播组, 准备接收数据包。
步骤 805、 发送终端 H将数据包发送给互联网服务器。
步骤 806、 互联网服务器接收到数据包后, 根据之前与接收终端 I和接收终端 J建 立的多播传输的多播组信息, 采用多播的方式, 将数据包通过多播组, 发送给接收终端 I和接收终端 J。
图 13所示的实施例中, 第一网络侧装置和第二网络侧装置相当于集成在互联网服 务器中, 互联网服务器实现了第一网络侧装置和第二网络侧装置的功能。
本发明上述各个实施例中均是以接收终端的数量为 2来介绍的, 实际上, 接收终端 的数量可以是 1个, 也可以是多个, 不限于 2个。 当接收终端的数量大于 2个时, 实现 过程与前述 2个接收终端的实现过程类似。
如图 14所示为本发明第一网络侧装置实施例的结构示意图, 该装置包括: 第一连 接建立模块 51和第一分发模块 52, 第一连接建立模块 51和第一分发模块 52连接, 其 中, 第一连接建立模块 51用于接收发送终端发送的业务请求, 建立发送终端与该第一 网络侧装置的连接, 发送终端发送的业务请求中携带有接收终端的信息; 第一分发模块 52用于接收发送终端发送的数据包, 根据第一连接建立模块 51接收到的接收终端的信 息, 将所述数据包发送给接收终端归属的第二网络侧装置。
在一个实施例中,第一分发模块 52具体可以用于接收所述发送终端发送的数据包, 根据所述发送终端发送的业务请求中携带的接收终端的信息和分发指示,将所述数据包 复制成 N份, 并将各个数据包发送给各个接收终端归属的第二网络侧装置。 具体地, 将 数据包复制成 N份之后, 可以将各份数据包中的地址用各个接收终端的地址替换, 或者 将数据包中的标识用各个接收终端的标识替换,然后将各个数据包发送给各个接收终端 归属的第二网络侧装置。
在一个实施例中, 第一连接建立模块 51还可以用于与所述发送终端进行头部压縮 协商;第一分发模块 52具体可以用于接收发送终端发送的经过头部压縮之后的数据包, 将该数据包进行头部解压缩,根据发送终端发送的业务请求中携带的接收终端的信息和 分发指示, 将数据包复制成 N份, 并将各个数据包发送给各个接收终端归属的第二网络 侧装置。 具体地, 将数据包复制成 N份之后, 可以将各份数据包中的地址用各个接收终 端的地址替换, 或者将数据包中的标识用各个接收终端的标识替换, 然后将各个数据包 发送给各个接收终端归属的第二网络侧装置。
如图 15所示为本发明第二网络侧装置实施例的结构示意图, 包括第二连接建立模 块 61和第二分发模块 62, 第二分发模块 62与第二连接建立模块 61连接, 其中, 第二 连接建立模块 61用于接收接收终端发送的业务请求, 为建立所述接收终端与所述第二 网络侧装置之间的连接; 第二分发模块 62用于接收第一网络侧装置发送的数据包, 通 过所述第二连接建立模块 61建立的连接, 将所述数据包发送给所述接收终端。
在一个实施例中, 第二连接建立模块 61具体可以用于接收接收终端发送的业务请 求, 业务请求中携带有汇聚标识, 建立接收终端与第二网络侧装置之间的连接, 为业务 请求中携带相同汇聚标识的接收终端建立多播组; 第二分发模块 62具体可以用于接收 第一网络侧装置发送的数据包, 将数据包通过所述第二连接建立模块 61建立的多播组 发送给各个接收终端。
在一个实施例中, 第二连接建立模块 61具体可以用于接收接收终端发送的业务请 求,所述业务请求中携带有汇聚标识,建立所述接收终端与第二网络侧装置之间的连接, 为业务请求中携带相同汇聚标识的接收终端建立多播承载通道; 第二分发模块 62具体 可以用于接收第一网络侧装置发送的数据包, 将数据包进行头部压缩, 将数据包通过所 述第二连接建立模块 61建立的多播承载通道发送给各个接收终端。
如图 16所示为本发明实现数据共享的系统实施例的结构示意图,包括如图 14所示 的第一网络侧装置 5和如图 15所示的第二网络侧装置 6,第一网络侧装置 5中的第一分
发模块 52与第二网络侧装置 6中的第二连接建立模块 61连接。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案而非对其进行限制, 尽 管参照较佳实施例对本发明进行了详细的说明, 本领域的普通技术人员应当理解: 其依 然可以对本发明的技术方案进行修改或者等同替换,而这些修改或者等同替换亦不能使 修改后的技术方案脱离本发明技术方案的精神和范围。
Claims
1、 一种实现数据共享的方法, 其特征在于, 包括:
第一网络侧装置接收发送终端发送的业务请求,建立所述发送终端与所述第一网络 侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息;
第一网络侧装置接收所述发送终端发送的数据包, 根据所述接收终端的信息, 将所 述数据包发送给所述接收终端归属的第二网络侧装置。
2、 根据权利要求 1所述的方法, 其特征在于, 当所述接收终端的数量 N大 1时, 所述发送终端发送的业务请求中还携带有分发指示,所述分发指示用于通知所述第二网 络侧装置将收到的数据包进行复制并发送给不同的接收终端;
所述第一网络侧装置接收所述发送终端发送的数据包, 根据所述接收终端的信息, 将所述数据包发送给所述接收终端归属的第二网络侧装置包括:
所述第一网络侧装置接收所述发送终端发送的数据包,根据所述发送终端发送的业 务请求中携带的接收终端的信息和分发指示, 将所述数据包复制成 N份, 将各个数据包 发送给各个接收终端归属的第二网络侧装置。
3、 根据权利要求 2所述的方法, 其特征在于, 所述第一网络侧装置接收发送终端 发送的业务请求, 建立所述发送终端与所述第一网络侧装置的连接的过程中, 还与所述 发送终端进行头部压縮协商;
所述第一网络侧装置接收所述发送终端发送的数据包,根据所述发送终端发送的业 务请求中携带的接收终端的信息和分发指示, 将所述数据包复制成 N份, 并将各个数据 包发送给各个接收终端归属的第二网络侧装置具体包括:
所述第一网络侧装置接收所述发送终端发送的经过头部压缩之后的数据包,将所述 数据包进行头部解压縮,根据所述发送终端发送的业务请求中携带的接收终端的信息和 分发指示, 将所述数据包复制成 N份, 并将各个数据包发送给各个接收终端归属的第二 网络侧装置。
4、 一种实现数据共享的方法, 其特征在于, 包括:
第二网络侧装置接收接收终端发送的业务请求,建立所述接收终端与所述第二网络 侧装置之间的连接;
所述第二网络侧装置接收第一网络侧装置发送的数据包, 通过所述连接, 将所述数 据包发送给所述接收终端。
5、 根据权利要求 4所述的方法, 其特征在于, 当所述接收终端的数量 N大于 1时,
所述第二网络侧装置接收接收终端发送的业务请求,建立所述接收终端与所述第二网络 侧装置之间的连接具体包括: 所述第二网络侧装置接收接收终端发送的业务请求, 所述 业务请求中携带有汇聚标识, 建立所述接收终端与所述第二网络侧装置之间的连接, 并 为所述业务请求中携带相同汇聚标识的接收终端建立多播组;
所述第二网络侧装置接收第一网络侧装置发送的数据包, 通过所述连接, 将所述数 据包发送给所述接收终端具体包括:所述第二网络侧装置接收第一网络侧装置发送的数 据包, 将所述数据包通过所述多播组发送给各个接收终端。
6、 根据权利要求 4所述的方法, 其特征在于, 当所述接收终端的数量 N大于 1时, 所述第二网络侧装置接收接收终端发送的业务请求,建立所述接收终端与所述第二网络 侧装置之间的连接具体包括: 所述第二网络侧装置接收接收终端发送的业务请求, 所述 业务请求中携带有汇聚标识, 建立所述接收终端与所述第二网络侧装置之间的连接, 为 所述业务请求中携带相同汇聚标识的接收终端建立多播承载通道;
所述第二网络侧装置接收第一网络侧装置发送的数据包, 通过所述连接, 将所述数 据包发送给所述接收终端具体包括:所述第二网络侧装置接收第一网络侧装置发送的数 据包, 将所述数据包进行头部压缩, 将经过头部压缩之后的数据包通过所述多播承载通 道发送给各个接收终端。
7、 一种第一网络侧装置, 其特征在于, 包括:
第一连接建立模块, 用于接收发送终端发送的业务请求, 建立所述发送终端与所述 第一网络侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息; 第一分发模块, 用于接收所述发送终端发送的数据包, 根据所述第一连接建立模块 接收到的接收终端的信息, 将所述数据包发送给所述接收终端归属的第二网络侧装置。
8、 根据权利要求 7所述的装置, 其特征在于, 所述第一分发模块具体用于接收所 述发送终端发送的数据包,根据所述发送终端发送的业务请求中携带的接收终端的信息 和分发指示, 将所述数据包复制成 N份, 并将各个数据包发送给各个接收终端归属的第 二网络侧装置。
9、 根据权利要求 7所述的装置, 其特征在于, 所述第一连接建立模块还用于与所 述发送终端进行头部压缩协商;
所述第一分发模块具体用于接收所述发送终端发送的经过头部压缩之后的数据包, 将所述数据包进行头部解压縮,根据所述发送终端发送的业务请求中携带的接收终端的 信息和分发指示, 将所述数据包复制成 N份, 并将各个数据包发送给各个接收终端归属
的第二网络侧装置。
10、 一种第二网络侧装置, 其特征在于, 包括:
第二连接建立模块, 用于接收接收终端发送的业务请求, 为建立所述接收终端与所 述第二网络侧装置之间的连接;
第二分发模块, 用于接收第一网络侧装置发送的数据包, 通过所述第二连接建立模 块建立的连接, 将所述数据包发送给所述接收终端。
11、 根据权利要求 10所述的装置, 其特征在于, 所述第二连接建立模块具体用于 接收接收终端发送的业务请求, 所述业务请求中携带有汇聚标识, 建立所述接收终端与 所述第二网络侧装置之间的连接, 为所述业务请求中携带相同汇聚标识的接收终端建立 多播组;
所述第二分发模块具体用于接收第一网络侧装置发送的数据包,将所述数据包通过 所述第二连接建立模块建立的多播组发送给各个接收终端。
12、 根据权利要求 11所述的装置, 其特征在于, 所述第二连接建立模块具体用于 接收接收终端发送的业务请求, 所述业务请求中携带有汇聚标识, 建立所述接收终端与 所述第二网络侧装置之间的连接, 为所述业务请求中携带相同汇聚标识的接收终端建立 多播承载通道;
所述第二分发模块具体用于接收第一网络侧装置发送的数据包,将所述数据包进行 头部压缩,将所述数据包通过所述第二连接建立模块建立的多播承载通道发送给各个接 收终端。
13、 一种实现数据共享的系统, 其特征在于, 包括第一网络侧装置和第二网络侧装 置;
所述第一网络侧装置包括:
第一连接建立模块, 用于接收发送终端发送的业务请求, 建立所述发送终端与所述 第一网络侧装置的连接, 所述发送终端发送的业务请求中携带有接收终端的信息; 第一分发模块, 用于接收所述发送终端发送的数据包, 根据所述第一连接建立模块 接收到的接收终端的信息, 将所述数据包发送给所述接收终端归属的第二网络侧装置; 所述第二网络侧装置包括:
第二连接建立模块, 用于接收接收终端发送的业务请求, 为建立所述接收终端与所 述第二网络侧装置之间的连接;
第二分发模块, 用于接收所述第一网络侧装置发送的数据包, 通过所述第二连接建
立模块建立的连接, 将所述数据包发送给所述接收终端。
14、 根据权利要求 13所述的系统, 其特征在于, 所述第一网络侧装置为接入网装置 或互联网服务器, 所述第二网络侧装置为接入网装置或互联网服务器。
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