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Local exchange method and system of terminal

A technology of local switching and terminal, applied in the field of communication, can solve the problem of increasing the load of network equipment on the core network and user data transmission delay and other problems

Inactive Publication Date: 2015-05-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a terminal local switching method and system to at least solve the problem of increasing the load of the network equipment of the core network and the transmission delay of user data in the related art through LTE technology for data forwarding

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  • Local exchange method and system of terminal
  • Local exchange method and system of terminal
  • Local exchange method and system of terminal

Examples

Experimental program
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Embodiment 1

[0112] This preferred embodiment provides a specific example in which the first terminal and the second terminal establish a local bearer and perform local switching. In this preferred embodiment, the eNB judges whether the local bearer can be established. In this preferred embodiment, the first terminal and the second terminal serve the same eNB. In this preferred embodiment, locally switched data is switched at the PDCP layer.

[0113] Step 1: The eNB judges whether a local bearer can be established.

[0114] Figure 6 is a message flow diagram of eNB judging whether local switching is possible according to a preferred embodiment of the present invention, such as Figure 6 As shown, the specific process for the eNB to determine whether a bearer can be established is as follows:

[0115] The first terminal attaches. During the attachment process, the MME transmits the IP address of the first terminal to the eNB through the initial context setup request message. After rece...

Embodiment 2

[0135] This preferred embodiment provides a specific example in which the first terminal and the second terminal establish a local bearer and perform local switching. In this preferred embodiment, the PGW determines whether the local bearer can be established. In this preferred embodiment, the first terminal and the second terminal are served by the same eNB and also belong to the management of the same PGW. In this preferred embodiment, locally switched data is switched above the PDCP layer.

[0136] Step 1: The PGW judges whether a local bearer can be established.

[0137] Figure 15 is a message flow diagram of the PGW judging whether local switching is possible according to a preferred embodiment of the present invention, such as Figure 15 As shown, the specific process for the PGW to determine whether a bearer can be established is as follows:

[0138] The first terminal attaches. The second terminal attaches. When the first terminal has data to be sent to the second...

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Abstract

Disclosed are a method and a system for local exchange of a terminal. The method comprises: an evolved base station eNB coordinating with a first terminal and a second terminal to establish a local carrier, where the local carrier refers to a carrier dedicated to device-to-device (D2D) that needs to be used in a local exchange process; and the eNB forwarding service data between the first terminal and the second terminal by using the local carrier to implement local exchange. By means of the present invention, effects of reducing load of a network device in a core network, shortening a transmission delay of data, and improving a transmission speed of data are achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a terminal local switching method and system. Background technique [0002] With the development of wireless multimedia services, people's demand for high data rate and user experience is increasing, which puts forward higher requirements on the system capacity and coverage of traditional cellular networks. Moreover, the popularity of applications such as social networking, short-distance data sharing, and local advertising has gradually increased people's demand for PS (Proximity Services, Proximity Services) to understand and communicate with nearby interested people or things. The traditional base station-centric cellular network has obvious limitations in terms of high data rate and proximity service support. In the context of this demand, D2D (Device-to-Device, device-to-device, which represents a new direction for future communication technology development) equipment) te...

Claims

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Application Information

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IPC IPC(8): H04W4/00H04W76/02H04W76/14
CPCH04W76/14
Inventor 马书宇谢峰陈琳罗宇民
Owner ZTE CORP
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