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Method and device for inquiring direct connection communication target terminal information

A target terminal and direct-connection communication technology, which is applied in the field of inquiry methods and devices for direct-connection communication target terminal information, and can solve problems such as the list is not saved

Active Publication Date: 2014-04-16
苏州医疗器械产业发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above D2D device discovery process, it is likely that the discovered D2D device and the discovering D2D device are managed by different MMEs or D2D servers, that is, the D2D discovery lists of the discovered end and the discovering end are not saved in the same place

Method used

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  • Method and device for inquiring direct connection communication target terminal information
  • Method and device for inquiring direct connection communication target terminal information
  • Method and device for inquiring direct connection communication target terminal information

Examples

Experimental program
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Effect test

Embodiment 1

[0083] Such as figure 2 As shown, this embodiment shows a D2D discovery process in which the source UE1 discovers the target UE when the UE1 having the D2D function and the target UE are located in the same eNB range but under different MMEs. For simplicity, the schematic diagram only shows a scenario where there is one target UE. Wherein, the source UE1 is located under the management of the source MME1, and the target UE2 is located under the management of the target MME2. In this process, both the source UE1 and the target UE2 use the unique D2D discovery identifier allocated by the eNB to identify their D2D devices. The specific steps of the process are described as follows:

[0084] 1) When UE1 and UE2 start D2D services, UE1 and UE2 respectively perform D2D authentication and authorization with the network. In this process, the eNB assigns a unique D2D discovery ID to each UE authorized for D2D services. Optionally, the eNB reports the D2D discovery ID to the MME. ...

Embodiment 2

[0108] Such as image 3 As shown, this embodiment shows the D2D discovery process of the source UE1 discovering the target UE when the UE1 capable of D2D function and the target UE are located in the same eNB range but under different MMEs. For simplicity, the schematic diagram only shows a scenario where there is one target UE. Wherein, the source UE1 is located under the management of the source MME1, and the target UE2 is located under the management of the target MME2. In this process, both the source UE1 and the target UE2 use the unique D2D discovery identifier allocated by the eNB to identify their D2D devices. The specific steps of the process are described as follows:

[0109] 1)-2) are the same as step 1-3) in Example 1.

[0110] 4) After receiving the D2D discovery request message sent by the source UE1, the eNB associates with the temporary identity GUTI of the discovered target UE according to the D2D discovery identity of the discovered target UE.

[0111] Wh...

Embodiment 3

[0120] Such as Figure 4 As shown, this embodiment shows the D2D discovery process of the source UE1 discovering the target UE when the UE1 capable of D2D function and the target UE are located in the same eNB range but under different MMEs in the network sharing scenario. For simplicity, the schematic diagram only shows a scenario where there is one target UE. Wherein, the source UE1 is located under the management of the source MME1, and the target UE2 is located under the management of the target MME2. There is a special entity in the core network to manage the D2D service, that is, a D2D server (D2D Server). The D2D discovery list information of the UE is uniformly stored at the D2D server. In this process, both the source UE1 and the target UE2 use the unique D2D discovery identifier allocated by the eNB to identify their D2D devices. The specific steps of the process are described as follows:

[0121] 1)-5) are the same as steps 1-5) of Embodiment 1.

[0122]6) The ...

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Abstract

The invention discloses a method and device for inquiring direct connection communication target terminal information. When a source terminal finds a target terminal, a source wireless access device which the source terminal has access sends D2D finding request information to a source network entity, and address information of a target network entity connected with the target terminal and source terminal identifications are carried; the source network entity sends D2D inquiring request information to the target network entity according to the address information of the target network entity, and the source terminal identifications and target terminal identifications are carried; the target network entity inquires the information of the target terminal, and returns inquiring results back to the source network entity through D2D inquiring response information. By means of the method and device, a found list of a found D2D device can be inquired, and therefore a final found list can be generated to be supplied to the D2D device at a finding terminal.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for querying information of a directly connected communication target terminal. Background technique [0002] The D2D (Device-to-Device, direct connection communication) technology based on the cellular network is a new technology that directly communicates between multiple terminal devices supporting the D2D function under the control of the system. D2D technology breaks the long-term evolution (Evolved Package System, EPS) system defined by the previous 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project). In the system, two wireless terminal devices must pass through a base station or a wireless access device. Communication Limitations. Therefore, system resource occupation can be reduced, spectrum efficiency of cellular communication system can be increased, terminal transmission power consumption can be reduced, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/24
Inventor 冯成燕梁爽甘露
Owner 苏州医疗器械产业发展集团有限公司
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