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Method and system for distributing equipment identifiers

A device identification and distribution method technology, applied in wireless communication, network data management, electrical components, etc., can solve the problems of not supporting the discovery ID allocation mechanism, and D2D discovery cannot be executed smoothly.

Inactive Publication Date: 2014-09-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Since the discovery ID can uniquely identify the UE in its effective area, and can be reused in different spaces, if the UE moves out of the effective area of ​​the discovery ID, if the original discovery ID is still used, it is very likely Conflicts with the discovery IDs of other different UEs. The network cannot uniquely identify the UE through the discovery ID, which will cause D2D discovery to not be performed smoothly. Therefore, the discovery ID has regional validity and time validity. If the ID fails, in the D2D scenario, the network side needs to have an allocation mechanism to reclaim the discovery ID and re-allocate the discovery ID for the UE. However, in the existing standard, the LTE system does not support the allocation mechanism of the discovery ID in the D2D scenario.

Method used

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  • Method and system for distributing equipment identifiers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] This embodiment describes a method in which a device identity management entity assigns a device identity to a UE during the attach process of the UE. In this embodiment, the device identity management entity is located in the base station and / or the MME. Such as image 3 As shown, this embodiment includes the following steps:

[0181] Step 201. The UE initiates an attach process after powering on. After the UE establishes an RRC connection with the base station, it sends a NAS message attachment request to the base station in an air interface RRC message, and the base station transparently transmits the attachment request message to the MME.

[0182] Step 202. The MME selects a Serving Gateway (S-GW) and a Packet Data Gateway (P-GW) for the UE, and creates a default Evolved Packet System (EPS) bearer for the UE. The MME sends a session creation request message to the S-GW.

[0183] Step 203. The S-GW creates the context of the UE, and sends a session creation reque...

Embodiment 2

[0194] This embodiment describes a method for a device identity management entity to assign a device identity to a UE during a tracking area update (TAU) process of the UE. In this embodiment, the device identity management entity is located in the base station and / or the MME. Such as Figure 4 As shown, this embodiment includes the following steps:

[0195] Step 301. After the UE moves in the idle state and camps on a new cell, and detects that the TAI of the cell is not in the TAI list configured by the MME during the attach process, the UE initiates a TAU process. The UE first establishes an RRC connection with the base station. Then send the RRC message RRC connection establishment complete message to the base station, which includes the NAS message TAU request message. The base station then transparently transmits the NAS message to the target MME through the S1 interface message.

[0196] Steps 302-304. The target MME interacts with the source MME to transfer the con...

Embodiment 3

[0209] This embodiment describes a method for a device identity management entity to assign a device identity to a UE during a service request (SR) process initiated by the UE. In this embodiment, the device identity management entity is located in the base station and / or the MME. Such as Figure 5 As shown, this embodiment includes the following steps:

[0210] Step 401. If the idle state UE has service data to send, it first establishes an RRC connection with the base station, and then carries a NAS message service request message to the base station in the RRC message RRC connection establishment complete message. The base station transparently transmits the NAS message to the MME after receiving it.

[0211] Step 402. The MME assigns a device identifier to the UE; or the MME judges whether the TAI or discovery area identifier where the UE is located when the device identifier was assigned to the UE last time is the same as the current TAI or discovery area identifier, an...

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PUM

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Abstract

Disclosed are an equipment identification allocation method and system. The method comprises: an equipment identification management entity allocating an equipment identification for a user equipment (UE); and the equipment identification management entity sending information to the UE, wherein the information contains the equipment identification. In the system, an equipment identification allocation unit is configured to allocate the equipment identification for the UE; and an equipment identification sending unit is used for sending information to the UE, wherein the information contains the equipment identification. By adopting the present invention, a network side can allocate an identification for a UE in a device-to-device scenario.

Description

technical field [0001] The present invention relates to the identification distribution technology in the technical field of wireless communication, in particular to a method and system for assigning equipment identifications. 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. On the other hand, the popularity of applications such as social networks, short-distance data sharing, and local advertisements has gradually increased people's demand for understanding and communicating with nearby interested people or things. The existing cell-based cellular network has obvious limitations in the support of high data rate and proximity service. Under the background of this demand, Device-to-Device (D2D, Device-to-Device ) technology came into being. The application of D2D ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/26H04W36/00
CPCH04W64/00H04W8/26
Inventor 黄莹陈琳谢峰鲁照华罗宇民马书宇刘玉兰
Owner ZTE CORP