A method, system and device for establishing a direct channel
A direct channel and user plane tunnel technology, which is applied in the field of establishing direct channels and can solve the problems of large data transmission delay and heavy traffic load.
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Embodiment 1
[0048] Such as image 3 As shown, it is a schematic diagram of a method for establishing a direct channel in Embodiment 1 of the present invention, including the following steps:
[0049] Step 301: The S-GW judges whether to establish a direct channel DirectTunnel between the base station and the L-PGW / P-GW, if the result of the determination is yes, execute step 302; if the result of the determination is no, the establishment of the direct channel ends.
[0050] The base station in step 301 may be a home base station HeNB or a macro base station eNB.
[0051] Preferably, the S-GW judges whether to establish a Direct Tunnel between the base station and the P-GW / L-PGW according to one or a combination of the following information: APN, whether the S-GW has the ability to establish a Direct Tunnel, whether the operator Configure the ability to use the S-GW to establish a Direct Tunnel, whether the P-GW / L-PGW has the ability to establish a Direct Tunnel, and whether the operator...
Embodiment 2
[0065] Such as Figure 4 As shown, it is a schematic diagram of a method for establishing a direct channel in Embodiment 2 of the present invention, including the following steps:
[0066] Step 401: The MME judges whether to establish a Direct Tunnel between the base station and the P-GW / L-PGW according to the user subscription information, and sends the judgment result to the S-GW.
[0067] Specifically, the MME judges whether to establish the base station and the P-GW / L- Direct Tunnel between PGWs, and send the judgment result to S-GW.
[0068] The MME can judge whether to establish a Direct Tunnel between the base station and the P-GW / L-PGW according to the type of APN. In specific implementation, a specific APN can be stored in the MME in advance, and the base station and The gateway can establish a Direct Tunnel, and when the APN of the user equipment is any one of the specific APNs, the MME determines that the Direct Tunnel can be established.
[0069] When the MME has ...
Embodiment 3
[0082] Such as Figure 5 As shown, it is a schematic diagram of the signaling process for establishing DirectTunnel between relevant network elements in the network architecture of the EPS macrocellular network, which specifically includes the following steps:
[0083] Step 501: UE initiates an Attach Request to the eNB serving it, and the eNB sends the Attach Request to the MME in the CN, and the Attach Request carries the identification number of the UE.
[0084] Step 502: The MME sends a Create Session Request to the S-GW, and the Create Session Request carries the IP address of the MME, the TEID of the MME, the IP address of the P-GW / L-PGW, and the APN of the UE. The TEID is classified into two types, a control plane TEID and a user plane TEID, and is used to identify a tunnel.
[0085] It should be noted that if the method for establishing a direct channel in Embodiment 2 is used, then in step 502, after receiving the Attach Request, the MME judges whether to establish t...
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