Method and device for exchange and mapping of signaling information

A technology for channel state information and scheduling information, applied in wireless communication, electrical components, etc., to solve problems such as inability to meet collaboration requirements

Active Publication Date: 2014-07-02
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current X2 signaling used for downlink interference cooperation only provides semi-static cooperation support and cannot meet the dynamic cooperation requirements

Method used

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  • Method and device for exchange and mapping of signaling information
  • Method and device for exchange and mapping of signaling information
  • Method and device for exchange and mapping of signaling information

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Embodiment Construction

[0013] In order to better understand the spirit of the present invention, it will be further described below in conjunction with some preferred embodiments of the present invention.

[0014] According to the current LTE / LTE-A protocol, X2 signaling for downlink interference coordination is designed to support inter-cell interference coordination (ICIC, inter-cell interference coordination), and only includes relative narrowband transmission power (RNTP, Relative Narrowband Transmission Power) and almost blank subframe (ABS, Almost Rlank Subframe) mode information. The relative narrowband transmission power indicates the downlink power limit of a cell of the transmitting base station in each physical resource block, and the almost blank subframe mode information indicates the cell subframes set by the transmitting base station as almost blank subframes. Both of these two signalings only support semi-static resource cooperation, which obviously cannot meet the requirements of dy...

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Abstract

The present invention relates to a method and a device for exchanging and mapping X2 signaling information, and supports dynamic interference coordination between multiple base stations based on an X2 interface. An embodiment of the present invention provides a method for exchanging and / or mapping X2 signaling information, and the method includes: receiving, by a neighboring base station from a serving base station of a user equipment (UE), scheduling information about at least one UE including the UE; receiving, by the neighboring base station based on the scheduling information, channel state information corresponding to the neighboring base station and reported by the UE; and executing, by the neighboring base station, interference coordination on the UE based on the received channel state information and scheduling information. The present invention solves the problem in the prior art that X2 does not support dynamic interference coordination, so that X2 signaling is improved and the development and application of new technologies are further promoted.

Description

technical field [0001] The present invention relates to signaling technology in wireless communication, especially a method and device for exchanging and mapping signaling information. Background technique [0002] Coordinated multi-point transmission is a very promising technology in Long Term Evolution-Advanced (LTE-Advanced, Long Term Evolution-Advanced), which can effectively reduce inter-cell interference (ICI, inter-cell interference) and improve high data Rate coverage, cell edge throughput and / or system throughput. There are many different types of technical solutions for the specific implementation of CoMP, such as Coordinated Scheduling / Beamforming (CS / CB, Coordinated Scheduling / Beamforming), Dynamic Point Selection (DPS, Dynamic Point Selection), Joint Transmission (JT, Joint Transmission). Among them, the cooperative scheduling / beamforming does not require data sharing among multiple transmission points (TP, Transmission Point), so it is considered to be the mo...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04W72/12H04W92/20
CPCH04W92/20H04W72/1278H04W72/1231H04W72/542H04W72/20
Inventor熊芝兰邓云张闽杨红卫
OwnerALCATEL LUCENT SHANGHAI BELL CO LTD