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Method for selecting user plane entity and control plane entity in mobile communication network

A user plane entity and control plane technology, which is applied in wireless communication, location-based services, transmission systems, etc., and can solve problems such as inapplicability to user plane entities and unfavorable network evolution.

Active Publication Date: 2019-08-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0047] In the existing mobile communication network, PGW and SGW have both control plane entities (that is, process control signaling) and user plane entities (that is, forward data packets), which is not conducive to the evolution of the network
In the prior art, the MME is responsible for selecting the SGW and PGW. When the control plane entities and user plane entities of the SGW and PGW are separated, the user plane entities are transparent to the MME, so the existing selection mechanism does not apply to the selection of user plane entities.

Method used

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  • Method for selecting user plane entity and control plane entity in mobile communication network
  • Method for selecting user plane entity and control plane entity in mobile communication network
  • Method for selecting user plane entity and control plane entity in mobile communication network

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Embodiment Construction

[0137] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0138] As mentioned above, in the existing mobile communication network, the PGW and the SGW have both control plane entities and user plane entities, which is not conducive to network evolution. In the embodiment of the present invention, the control plane entity and the user plane entity of the PGW / SGW are separated, and are specifically divided into: the SGW control plane entity, the SGW user plane entity, the PGW control plane entity, and the PGW user plane entity.

[0139] The SGW control plane entity supports the control functions of the existing SGW, such as the mobility anchor point for inter-3GPP access handover; the SGW user plane entity supports the functions related to data routing of the existing SGW, such as packet routing and forwarding. T...

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Abstract

The invention provides methods for selecting a user plane entity in a mobile communication network and control plane entities. Embodiments of the invention implement a user plane entity selection function and provide support for network evolution after a serving gateway / packet data network gateway (SGW / PGW) user plane entity and a control plane entity are separated. Furthermore, the embodiments of the invention comprehensively consider factors, such as load information and capacity of each user plane entity, a distance between the user plane entity and a UE and the like, to implement optimization processing of the user plane entities in a user plane entity selecting process.

Description

technical field [0001] The invention relates to a mobile communication network, in particular to a method for selecting a user plane entity and a control plane entity in the mobile communication network. Background technique [0002] Long Term Evolution / System Architecture Evolution (LTE / SAE, Long Term Evolution / System Architecture Evolution) mobile communication network architecture (taking non-roaming scenarios as an example) such as figure 1 As shown, wherein, the main logical nodes in the evolved packet core network (EPC, Evolved Packet Core) are: Packet Data Network Gateway (PDN Gateway, Packet Data Network Gateway, denoted as PGW), Serving Gateway (SGW, Serving Gateway) and Mobility Management Entity (MME, Mobility Management Entity). The relevant functions of the SGW and the PGW are briefly introduced below. [0003] Among them, the functions of SGW are as follows: [0004] - Local Mobility Anchor during Handovers across Evolved Base Stations (eNBs); [0005] -In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W36/12H04L29/08
Inventor 侯云静王胡成张娟胡渭琦
Owner DATANG MOBILE COMM EQUIP CO LTD