System, device and method for communication
A communication system and management system technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as inability to meet service QoS requirements
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specific Embodiment 1
[0124] Specific embodiment one, as appended Figure 6 As shown, the specific process of establishing a LIPA or SIPTO packet data network (PDN) connection is as follows:
[0125] Step 601: The UE sends an attach PDN connection establishment message to a Mobility Management Entity (MME), and the MME detects and determines that the attach PDN connection establishment message belongs to a LIPA or SPTO connection establishment request.
[0126] Step 602: The MME selects the LGW of the UE as the packet data network gateway (PDN GW) corresponding to the LIPA access point name (APN). After the MME initiates a session establishment process to the SGW, the SGW initiates a session establishment request to the LGW.
[0127] In the prior art, after the LGW receives the session establishment request from the SGW, it allocates the user plane tunnel address and port number used to establish the connection between the LGW and the H(e)NB, and carries them back to the SGW in a response message, ...
specific Embodiment 2
[0138] Embodiment 2: The existing architecture does not support dynamic PCC, and when the UE initiates a LIPA or SIPTO bearer establishment request message, the LGW returns a rejection message. In this specific embodiment, after the above PCC architecture is adopted in the local network, the UE supports dynamic PCC, and different QoS bearers can also be established for different services initiated by the UE, as shown in the attached Figure 7 As shown, the specific process of establishing LIPA or SIPTO bearer for UE is as follows:
[0139] Step 701: After receiving the bearer establishment request from the UE, the SGW sends a request message for establishing a new bearer to the LGW.
[0140] Step 702: LGW sends a PCC allocation request message to PAMGW through the first interface of PAMGW to establish a new IP connectivity access network (IP Connectivity Access Network, IP-CAN) bearer, and the PCC allocation request carries the requested PCC policy information , the requested...
specific Embodiment 3
[0148] Embodiment 3: In the existing R10 architecture, the local network does not support the modification process of the established LIPA or SIPTO bearer. If the UE initiates a bearer modification request, the LGW will reject the request. In this specific embodiment, after the above-mentioned PCC architecture is adopted in the local network, the UE supports dynamic PCC, which can realize the bearer modification process of different QoS, as shown in the attached Figure 8 As shown, the specific process is as follows:
[0149] Step 801: After receiving the bearer modification request message from the UE, the SGW sends a bearer modification request message for modifying the established bearer to the LGW.
[0150] Step 802: The LGW sends a PCC allocation request message to the PAMGW through the first interface of the PAMGW, requesting to modify the established IP-CAN bearer. The PCC allocation request message carries the PCC policy information requested to be modified, and the PC...
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