Signaling interaction method supporting CoMP operation set option

A technology for signaling interaction and operation collection, which is used in wireless communication, network traffic/resource management, electrical components, etc.

Inactive Publication Date: 2009-12-02
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiency of limited content of existing X2 interface signaling interacti...

Method used

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  • Signaling interaction method supporting CoMP operation set option
  • Signaling interaction method supporting CoMP operation set option

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Experimental program
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Embodiment Construction

[0022] refer to figure 2 , the signaling interaction process of the present invention includes the following steps:

[0023] Step 1, CoMP measurement set initialization.

[0024] When a certain user needs to perform a CoMP operation, firstly, the serving eNB of the user initializes a CoMP measurement set for the user. Here, the CoMP measurement set of a certain user is initialized in a fixed manner, and all adjacent nodes of the user's serving eNB are used as the CoMP measurement set of the user under the serving eNB. In this way, the number of user measurements can be reduced, and the amount of information exchanged between eNBs can be reduced, and at the same time, additional interference to other users caused by a certain eNB participating in the cooperation of the user can be avoided.

[0025] Step 2, the serving eNB of the user sends a measurement request to the user.

[0026] After the initialization of the measurement set is completed, the serving eNB of the user ne...

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Abstract

The invention discloses a signaling interaction method supporting CoMP operation set option, which mainly solves the problems that the signaling interaction content of an X2 port of an LTE system is insufficient and the signaling interaction process cannot meet CoMP requirement. The method comprises the following steps that: service eNB of a user initiates a CoMP measuring set for the user; the service eNB sends a measuring request to the user so as to acquire signal quality from nodes in the measuring set to the user; meanwhile, the service eNB sends a CoMP state request message to the nodes in the measuring set so as to acquire current states of the nodes in the measuring set and start a timer to be measured; the user receives the measuring request, executes the measurement and reports a measuring result; the nodes in the measuring set receive the CoMP state request, initiate the measurement and feed a CoMP state response message back; after the nodes receiving the CoMP state request initiate the measurement successfully, the nodes execute the measurement and feed a CoMP state report message back; and the service eNB receives a measuring report and a CoMP state report, and extracts the signal quality and current state information of the nodes as parameters of CoMP operation node option.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a signaling interaction method supporting CoMP operation set selection, which can be used in LTE-Advanced broadband wireless networks. Background technique [0002] LTE is a long-term evolution project of 3GPP to Universal Mobile Telecommunications System UMTS technology. LTE is based on MIMO and OFDM technology, and its overall system architecture is attached figure 1 shown. The access network part is composed of eNode Bs, and the eNode Bs are interconnected by the X2 interface, and each eNode B is connected to the EPC through the S1 interface. The user plane of the S1 interface is terminated at the S-GW. The control plane of the S1 interface is terminated by the MME; the other end of the control plane and the user plane is terminated by the eNode B. An eNode B is similar to a base station in a cellular network, but it is much more powerful than a base station. The use...

Claims

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Application Information

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IPC IPC(8): H04W28/16H04W72/04
Inventor 盛敏郭静东史琰李建东李红艳陈清平
Owner XIDIAN UNIV
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