A method and device for allocating IP addresses

An IP address and address technology, applied in connection management, wireless network protocols, electrical components, etc., can solve problems such as IP address conflicts
CN108476549BActive Publication Date: 2021-03-30HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2021-03-30

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Abstract

An IP address allocation method and device, used to solve the technical problem of IP address conflict caused when a control plane device and a user plane device assign an IP address to a UE at the same time; when the control plane network device receives a session establishment request message, it can determine the first Whether a user plane network device is capable of allocating an IP address for a terminal device, and if the first user plane network device is capable of allocating an IP address for a terminal device, the control plane network device may send an address allocation instruction to the first user plane network device, so that It can be clear which device is to allocate the IP address, avoiding two devices to allocate an IP address to a terminal device at the same time, thereby avoiding the situation of IP address conflict.
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Description

technical field

[0001] The present invention relates to the technical field of mobile communication, in particular to an IP address allocation method and equipment. Background technique

[0002] In the prior art, when the user equipment (User Equipment, UE) is in the process of attaching to the network or in the process of establishing a packet data network (Packet Data Network, PDN) connection requested by the UE, the network device establishes a default bearer for the UE, and this At the same time, the network device will allocate a corresponding Internet Protocol (Internet Protocol, IP) address to the UE. Currently, generally speaking, a packet data network gateway (PDN GateWay, P-GW) allocates an IP address for the UE.

[0003] With the evolution of the network architecture to the 4.5th generation mobile communication system (4.5G) / 5th generation mobile communication system (5G), the separation of the control plane and the user plane of network functions is the main tre...

Claims

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