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Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof

An indoor coverage and wireless communication technology, applied in wireless communication, electrical components, network planning, etc., can solve problems such as long processing time, affecting user experience, and huge data volume, so as to increase the number of available resources, improve overall stability, The effect of multiplexing gain is obvious

Inactive Publication Date: 2010-08-04
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (2) Mutual interference between home base stations
More importantly, if there are a large number of femtocells in the macro cell, the amount of data will be huge during centralized scheduling, and the processing time will be long, which is not conducive to the real-time resource management and allocation of femtocells, affecting user experience
[0011] It can be seen that in the study of the interference problem of the home base station, there is a lack of a solution with high practicability and strong operability, which seriously restricts the wide application of the home base station

Method used

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  • Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof
  • Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof
  • Wireless communication indoor coverage equipment and interference avoidance/coordination method thereof

Examples

Experimental program
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Embodiment 1

[0057] This embodiment combines figure 1 Illustrate the general installation method of equipment of the present invention, this method comprises:

[0058] The user places the device of the present invention in the activity-intensive area of ​​the room, and the location is optional, and can also be changed according to needs, but it is possible that the coverage effect when placed in some locations will be poor due to the influence of wall fading. The user can place the device at different locations in the house, judge which locations have less interference and obtain better coverage effects according to the display value of the interference intensity display module, and place the device at these locations. Connect the device to the IP network with a cable, and power on. The device identification unit that comes with the device transmits the network access identification information of the device to the core network through the IP network. After the core network determines th...

Embodiment 2

[0060] This embodiment takes the TDD-LTE system as an example, combining figure 2 Illustrate the flow chart of interference avoidance / coordination technical scheme of the present invention, and this method comprises:

[0061] Step 201: Update Macro UL / DL RA with period T1;

[0062] Obtain accurate time synchronization information from the basic configuration information storage unit, and update the Macro UL / DL RA with a cycle T1, and perform corresponding updates and subsequent steps every time the T1 cycle exceeds;

[0063] Step 202: Detect whether the Macro UL / DL RA idle subcarrier is occupied;

[0064] The device uses spectrum sensing technology to detect on the Macro UL / DL RA idle subcarrier to determine whether it is occupied;

[0065] Step 203: No neighboring devices of the same type;

[0066] When the device allocates subcarriers, it will preferentially allocate the idle subcarriers of Macro UL / DL RA, so when it is not occupied, it means that there is no adjacent de...

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Abstract

The invention discloses wireless communication indoor coverage equipment and an interference avoidance / coordination method thereof. The equipment of the invention consists of an access unit, a firewall, an equipment identification unit, a basic configuration information storage unit, a user operation unit, an interference avoidance / coordination processing unit, an interference intensity indicating unit, an intermediate frequency / base band processing subsystem, a radio-frequency subsystem and an antenna feeder subsystem. The method of the invention provides two schemes according to the difference of the acquired scheduling information for solving the interference problem under a complex scene. The first scheme comprises the following steps: acquiring macro cell resource distribution information, detecting and judging whether the periphery has the same equipment, detecting and distinguishing interference sources by using a silent period, and periodically detecting the available resources. The second scheme comprises the step of periodically detecting the available resources by using resource distribution information periods of the adjacent same equipment. The equipment and the method can self-perceive and self-configure a complex electromagnetic environment by reasonably utilizing the scheduling information and fully complexing frequency spectrum resources to form a high-speed indoor coverage network capable of effectively avoiding the interference problem.

Description

technical field [0001] The invention relates to a novel indoor coverage device of a wireless communication network, and at the same time relates to an interference avoidance / coordination method when the device coexists with a macro-cell user or when a plurality of devices coexist, and belongs to the technical field of wireless communication. Background technique [0002] At present, with the extensive development of 3G (third generation mobile communication system) around the world, the number of users continues to increase, and at the same time, users' demand for high-speed data services is increasing. Therefore, the system capacity, coverage and quality of mobile communication networks are all To meet higher standards. In addition, according to statistics, 70% of mobile services take place indoors, and indoor signal coverage is poor due to loss caused by walls. Therefore, indoor coverage is bound to become the focus and difficulty of 3G and subsequent mobile communication...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W16/26H04W24/00
Inventor 刘元安孙剑锋谢刚高锦春韩潇袁东明韩宝于翠屏
Owner BEIJING UNIV OF POSTS & TELECOMM
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