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A method and device for jointly performing coverage optimization by multiple base stations

A coverage optimization, multi-base station technology, applied in electrical components, wireless communication, network planning, etc., can solve problems such as low optimization efficiency and incoordination of multiple base stations, and achieve the effect of improving optimization efficiency

Active Publication Date: 2016-08-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method and device for multi-base station joint coverage optimization, which is used to solve the problems of uncoordinated multi-base station and low optimization efficiency in existing coverage optimization schemes

Method used

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  • A method and device for jointly performing coverage optimization by multiple base stations
  • A method and device for jointly performing coverage optimization by multiple base stations
  • A method and device for jointly performing coverage optimization by multiple base stations

Examples

Experimental program
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Embodiment 1

[0033] In the LTE system, by transmitting a coverage adjustment instruction message on the X2 interface, multiple base stations can jointly perform coverage adjustment to solve the problem of coverage holes. Figure 1A , Figure 1B , Figure 1C It is a schematic diagram of multi-base station joint coverage adjustment according to Embodiment 1 of the present invention, Figure 1D It is the method flowchart of this embodiment, and the method is specifically:

[0034] Step S101: The evolved base station eNB1 receives the radio link failure reported by the UE and finds a coverage hole, such as Figure 1A shown;

[0035] Step S102: eNB1 triggers the operation of increasing the coverage area, after the coverage area is increased as follows Figure 1B shown;

[0036]Step S103: eNB1 sends a cell coverage adjustment notification to the evolved base station eNB2 through the X2 interface. The cell coverage adjustment notification includes a cell identifier, a coverage adjustment actio...

Embodiment 2

[0040] In the LTE system, by transmitting the cell coverage adjustment request message on the X2 interface, multiple base stations can jointly perform coverage adjustment to solve the problem of load balancing. Figure 2A , Figure 2B , Figure 2C It is a schematic diagram of multi-base station joint coverage adjustment according to Embodiment 2 of the present invention, Figure 2D It is the method flowchart of this embodiment, and the method is specifically:

[0041] Step S201: Increase the traffic on eNB1 and increase the load balancing start threshold. When the traffic on eNB1 exceeds the load balancing start threshold, eNB1 triggers the operation of reducing the coverage area. Before the coverage area is reduced, it is as follows Figure 2A As shown, the coverage is reduced as Figure 2B as shown,

[0042] Step S202: After completing the coverage reduction operation, eNB1 sends a cell coverage adjustment request to eNB2 and eNB3 through the X2 interface, which contains...

Embodiment 3

[0046] In the LTE system, by transmitting the handover report message on the X2 interface, multiple base stations can jointly perform coverage adjustment to solve the problem of mismatch between uplink and downlink coverage. Figure 3A , Figure 3B , Figure 3C , Figure 3D It is a schematic diagram of multi-base station joint coverage adjustment according to Embodiment 3 of the present invention, Figure 3E It is the method flowchart of this embodiment, and the method is specifically:

[0047] Step S301: eNB1 detects the UE handover failure process, which means that the handover is too early and the uplink signal quality is not good enough. It actually means that the uplink and downlink coverage do not match, and the uplink coverage is worse than the downlink coverage, such as Figure 3A , the dotted line in the figure indicates the uplink coverage area, so eNB1 triggers the process of reducing the downlink coverage area, such as Figure 3B ;

[0048] Step S302: After eN...

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Abstract

The invention discloses a method and a device for jointly performing coverage optimization by multiple base stations, which are used to solve the problems of uncoordinated multiple base stations and low optimization efficiency in existing coverage optimization schemes. The first method proposed by the present invention is: the base station where the cell after the coverage adjustment is located sends a coverage adjustment notice to other neighboring base stations, so as to trigger the neighboring base stations to judge whether to make corresponding coverage adjustments to the neighboring cells of the source cell action. The second scheme is: the source base station sends a coverage adjustment request to the target base station, and the target base station sends the adjustment result to the source base station or several adjacent base stations after performing coverage adjustment. The present invention triggers adjacent base stations to perform coverage adjustment actions of adjacent cells through messages such as coverage adjustment notices and coverage adjustment requests, so that multiple base stations can jointly perform coverage optimization, realize self-organization and self-optimization for cell coverage, and improve Optimize efficiency.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular, to a processing method for coverage optimization in a self-organization and self-optimization scheme of a mobile communication network. Background technique [0002] In a cellular mobile communication network, from the perspective of wireless signals, the entire network is composed of many cells; from the perspective of network element equipment, it is composed of many base stations, and each base station is used to realize the wireless network one or more of the districts. Generally, the area where the cell signal can be effectively used to realize the communication service is defined as the coverage area of ​​the cell, referred to as the cell coverage. [0003] Due to the impact of wireless environment changes, network planning changes, and network equipment status, in the actual network operation process, cell coverage will appear, coverage holes, uplink and downlink coverag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02
CPCH04W16/24H04W68/00H04W88/08
Inventor 费腾高音
Owner ZTE CORP
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