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Inter-cell interference suppression method and device

A technology for inter-cell interference and interference coordination, applied in wireless communication, electrical components, network planning, etc.

Active Publication Date: 2019-05-07
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the case of non-ideal backhaul network (Non-ideal Backhaul Network), joint reception is not a realistic option due to the limitation of Hybrid Automatic Repeat Request (HARQ) and the delay of channel state information delivered by the backhaul network.
Also due to the transmission delay of the backhaul network, iterative scheduling is not a realistic option

Method used

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  • Inter-cell interference suppression method and device
  • Inter-cell interference suppression method and device
  • Inter-cell interference suppression method and device

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Embodiment Construction

[0020] The detailed description of the drawings is intended as a description of the presently preferred embodiments of the invention, and is not intended to represent the only forms in which the invention can be practiced. It should be understood that the same or equivalent functions may be performed by different embodiments which are intended to be included within the spirit and scope of the present invention.

[0021] It will be understood by those skilled in the art that the means and functions described herein may be implemented using software functions in combination with a programmable microprocessor and a general purpose computer, and / or using an application specific integrated circuit (ASIC). It should also be understood that although the present invention has been primarily described in terms of methods and apparatus, the present invention can also be embodied as computer program products and systems comprising a computer processor and a memory coupled to the processor...

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Abstract

The invention relates to a method and device for inter-cell interference coordination. An embodiment provides a method suitable for interference coordination in a wireless communication network, including the following steps: i. The serving base station notifies the neighboring base station of the identity and reference signal resources of the pre-selected user equipment; ii. The neighboring base station evaluates the pre-selected The expected interference of the user equipment in the predetermined frame; iii. The serving base station schedules the signal transmission of the pre-selected user equipment in the predetermined frame based on the expected interference of the pre-selected user equipment in the predetermined frame exceeding a predetermined threshold to reduce inter-cell interference. The method or device of the present invention can reduce the interference between cells.

Description

technical field [0001] The present invention generally relates to mobile communication technology, and more particularly, to coordinated multipoint transmission. Background technique [0002] In modern mobile communication systems such as Long Term Evolution (LTE), the base station determines the transport format, transport block size, modulation used for downlink (DL) and uplink (UL) And coding scheme, Multiple Input Multiple Output (Multiple Input Multiple Output, MIMO) transmission mode and so on. The multiple-input multiple-output system adopts, for example, but not limited to, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) technology for signal bearing. The length of an independently decoded transmission in the wireless link is defined as the Transmission Time Interval (TTI). In the standards of 3GPP LTE and LTE-A, it is generally considered that one TTI is 1 ms. Each TTI typically includes, for example and without limit...

Claims

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Application Information

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IPC IPC(8): H04W16/00
CPCH04W16/10H04W72/542H04W72/20
Inventor 杨育波朱旭东
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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