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Forwarding interface building, UE access and switching method and device

A technology of forward interface and establishment method, which is applied in the establishment of forward interface, UE access and handover fields

Inactive Publication Date: 2019-01-18
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides a method and device for establishing a forward interface, UE access and handover, which can solve the problem of user plane establishment and the problem of UE access and handover after the introduction of DU and CU

Method used

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  • Forwarding interface building, UE access and switching method and device
  • Forwarding interface building, UE access and switching method and device
  • Forwarding interface building, UE access and switching method and device

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Experimental program
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Embodiment Construction

[0177] In order to make the purpose, technical means and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0178] This application provides three methods for establishing a forward interface between a DU and a CU, and also provides methods for UE access and UE handover after the establishment of the forward interface is completed. Each method in this application will be introduced in detail below.

[0179] The method for establishing the forward interface of the present invention is as figure 2 mentioned. In this method, the DU initiates the establishment process of the F1 interface. This method can be used in the case where the O&M has interfaces with both the CU and the DU or only has interfaces with the DU. The establishment method of the forward interface includes the processing on the DU side and the processing on the CU side. Here, for the convenience of de...

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PUM

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Abstract

The invention discloses a forwarding interface building method, and the method comprises the steps that a CU receives an F1 building request message sent by a DU, wherein the F1 building request message comprises one or a combination of the following pieces of information: a DU identification, an information list of a service cell on the DU, the capacity information of the DU and a downlink TEID distributed by the DU for the RRC message transmission; the CU transmits an F1 building response message to the DU, wherein the F1 building response message comprises one or a combination of the following pieces of information: CU identification, a PLMN identification list supported by the CU, a cell configuration list, and an up link TEID which is distributed by the CU for the RRC message transmission. According to the invention, the method can automatically build an interface between the DU and the CU, and reduces the configuration of an operator.

Description

technical field [0001] The present application relates to wireless communication technology, in particular to methods and devices for establishing a forward interface, UE access and handover. Background technique [0002] Modern mobile communication tends to provide higher mobile bandwidth, less delay, and support a large number of terminal services, such as figure 1 Shown is a system architecture diagram of a next-generation network or a fifth-generation (5G) network. in: [0003] User Equipment (UE) 101 is a terminal device for receiving data. The Next Generation Radio Access Network (NG-RAN) 102 is a radio access network that includes base stations (gNBs or eNBs connected to the 5G core network 5GC) that provide UEs with an interface to access the radio network. Access Control and Mobility Management Function (AMF) 103 is responsible for managing UE's mobility context and security information. A user plane function entity (UPF) 104 mainly provides user plane functions...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W36/00H04W36/06H04W76/11H04W92/04H04W92/16
CPCH04W24/10H04W36/0083H04W36/06H04W92/04H04W92/16
Inventor 许丽香王弘柯小婉汪巍崴
Owner BEIJING SAMSUNG TELECOM R&D CENT
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