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Base station, method and system for reducing inter-cell interference

An inter-cell interference and low-interference technology, applied in the field of wireless communication, can solve the problem that the soft frequency multiplexing method cannot be applied to the distribution of short-term traffic users at the edge of the cell, and affects the throughput of the LTE system, so as to avoid inter-cell interference and uplink transmission. Inter-cell interference in downlink transmission and the effect of improving throughput

Inactive Publication Date: 2019-12-24
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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Problems solved by technology

However, the soft frequency reuse method is not suitable for the surge of short-term traffic at the edge of the cell and the situation where the user distribution is too concentrated at the edge of the cell
Reducing the uplink transmission power of UEs will affect the throughput of the LTE system

Method used

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  • Base station, method and system for reducing inter-cell interference
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  • Base station, method and system for reducing inter-cell interference

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Embodiment Construction

[0033] refer to figure 1 Shown is a schematic diagram of the operation of a preferred embodiment of the prior art HII information.

[0034] In a long term evolution (Long Term Evolution, LTE) system, evolved base stations (evolved Node B, eNB) exchange occupancy information of physical resource blocks (physical resource blocks, PRBs) through an X2 interface. The X2 interface is an interconnection interface between eNBs, and supports direct transmission of data and signaling. The eNBs are connected to each other through the X2 interface to form a mesh network. The PRB is a basic unit of frequency spectrum and transmission time allocated to user equipments (user equipments, UEs) by the eNB.

[0035] In the prior art, LTE defines a high interference indicator (high interference indicator, HII) and an overload indicator (overload indicator, OI) to coordinate uplink transmission inter-cell interference. After the eNB allocates PRBs for edge user equipments (EUEs) of the cell, th...

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Abstract

The invention discloses a base station for reducing interference between cells. The base station comprises a memory and a microprocessor. The memory store program codes, the microprocessor executes the program codes, the program codes enable the microprocessor to monitor low interference indicator (LII) information, the LII information comprises low interference physical resource blocks (PRBs), and when the LII information is monitored, the microprocessor distributes PRBs not occupied by user equipments (UEs) of cells of base station service in low interference PRBs in the LII information to edge UEs of the cells.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a base station, method and system for reducing inter-cell interference. Background technique [0002] Inter-cell interference is an important factor affecting the signal quality between an evolved Node B (eNB) and user equipments (User Equipments, UEs), especially UEs at the edge of a cell. Long Term Evolution (LTE), a technical standard of the Universal Mobile Communications System developed by the Third Generation Partnership Project (3GPP), coordinates inter-cell interference in uplink transmission mainly through soft frequency reuse and power control. However, the soft frequency reuse method is not suitable for the surge of short-term traffic at the edge of the cell and the situation where the user distribution is too concentrated at the edge of the cell. However, reducing the uplink transmission power of UEs will affect the throughput of the LTE syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04J11/00H04L5/00H04W72/04H04W72/12
Inventor 俞中豪
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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