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Shared method and system of uplink frequency spectrum

A spectrum sharing and spectrum technology, applied in electrical components, wireless communication, network planning, etc., to solve problems such as femtocell interference

Active Publication Date: 2013-09-04
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this solution still has shortcomings. There may still be non-negligible interference between the hotspot coverage in the center of the cell and the macrocell using the same resource; on the other hand, if this solution is directly applied to uplink transmission, due to the needs of cell edge users Increase the transmission power to compensate for the large path loss between the macrocell base station from the edge of the cell to the center of the cell, which may cause greater interference to adjacent femtocells

Method used

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  • Shared method and system of uplink frequency spectrum
  • Shared method and system of uplink frequency spectrum
  • Shared method and system of uplink frequency spectrum

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Embodiment Construction

[0092] In order to make the purpose, content, and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention in conjunction with the accompanying drawings. The following examples are only used to illustrate the content of the present invention, but are not used to limit the scope of the present invention.

[0093] exist figure 1In the macrocell / home base station hybrid network shown, the solid-line connections between base stations (including macrocell base stations 107-108 and home base stations 109-112 and users 113-116) represent the normal signal transmission in the system, and the base stations and users The dotted line connection between represents the interfering signal in the system, comprises the interference of uplink and downlink.For example, the user 115 who is in the edge of macrocell sends useful signal towards its affiliated macrocell base station 107; On the other hand, macrocell base stat...

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Abstract

The invention relates to a shared method and system of an uplink frequency spectrum, aiming at the interference problem of a family base stations / macro-honeycomb base stations mixing network to carry out adaptability soft frequency reuse. In the method, a traditional soft frequency reuse method is adopted to confront the interference problem between macro-honeycomb cells, and the frequency interference problem between the family base stations / macro-honeycomb base stations is allocated and eliminated by using an orthorhombic spectrum. Simultaneously, an effective interference coordination mechanism is further provided for providing a complete solving scheme and facing the interference coordination problem between the family base stations; and facing the optimal utilization of spectrum at a user end, a spectrum scheduling method based on data packets is provided, wherein the service demands of a user in various aspects are comprehensively considered in the spectrum scheduling method for the purpose of promoting the spectrum efficiency of the system and achieving the maximization of weighing volume of the user.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an uplink frequency spectrum sharing method and system in a macrocell / home base station hybrid network environment. Background technique [0002] With the continuous development of wireless communication technology, the evolution of standard technology in the telecommunications industry is also accelerating: when 3G networks began to be deployed on a large scale in China, the collection of 4G communication technology was already in full swing. On the one hand, the increasing mobile applications and users' higher and higher data transmission rate requirements have become the main trend of the mobile communication industry, driving the current network to accelerate to Orthogonal Frequency Division Multiple Access (OFDMA)-based The core technology is 4G communication technology to support data communication with larger capacity; on the other hand, indoor users are inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W72/12
Inventor 冯志勇张平陈亚迷李一喆张奇勋
Owner BEIJING UNIV OF POSTS & TELECOMM
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