Heterogeneous cellular network access method based on maximum receiving power

A technology of maximum receiving power and cellular network, which is applied in access restriction, network traffic/resource management, electrical components, etc. It can solve the problems of not considering the terminal level or service level, and different priorities, so as to improve the system throughput. , low execution complexity and improved communication quality

Inactive Publication Date: 2017-05-31
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

Most of the existing access selection methods do not take into account the terminal level or service level, but in real life there will be terminals or services wit

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  • Heterogeneous cellular network access method based on maximum receiving power
  • Heterogeneous cellular network access method based on maximum receiving power
  • Heterogeneous cellular network access method based on maximum receiving power

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Embodiment Construction

[0041] The present invention will be further described in detail below with reference to the drawings and specific embodiments. In a narrow sense, a heterogeneous network is to set up low-power transmitting nodes under the coverage of traditional macro base stations, including Femtocell, Picocell, Microcell, Metrocell, etc. These low-power transmitting nodes form a Small Cell. Small Cell can help the Hongxiao District to bear some business flows and reduce part of the load. This effectively solves the coverage problems of hotspots and blind spots, increases network capacity, and also meets the bandwidth requirements of the terminal.

[0042] The LTE-A system introduces Carrier Aggregation (CA), Coordinated Multiple Points Transmission / Reception (CoMP), multi-antenna enhancement technology, and relay transmission to achieve greater system bandwidth. The goal of higher peak rate and spectrum utilization efficiency is large, and the use of a flat network improves the networking ef...

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Abstract

The invention discloses a heterogeneous cellular network access method based on the maximum receiving power. The heterogeneous cellular network access method based on the maximum receiving power mainly comprises the following steps: comparing the signal power received from each base station by the terminal; judging whether the terminal is a base station type terminal or not according to the received maximum value; if the terminal is a base station type terminal, accessing to the base station directly; if the terminal is not a base station type terminal, judging continually to determine whether the terminal is a small cell access type terminal or a cooperative access type terminal according to the remaining bandwidth, signal and interference noise ratio; and if a plurality of terminals request to access, establishing a queuing model according to the access request time of the terminals, the user levels and the data rate, and confirming the access priority of the terminals. The invention can maximize the total throughput of the terminals within the cell under the condition that the system resources are unchanged; the improved scheme benefits improving the throughput of the system, and the use of the system resources are more sufficient.

Description

Technical field [0001] The present invention relates to the field of heterogeneous network access in wireless communication, in particular to a heterogeneous cellular network access method based on maximum received power. Background technique [0002] Heterogeneous network is a major trend in the development of next-generation wireless systems, and its access selection is naturally a current research hotspot. The earliest research on heterogeneous network access selection methods can be traced back to the literature published by Wei Song et al. from 2006 to 2007, which is the first time to integrate wireless cellular networks and wireless local area networks (WLAN). As a system model, it solves the terminal access problem in this scenario. Specifically, the terminal is divided into a voice part and a data part according to the service type. For the overlapping area of ​​the cell, the voice part of the terminal prefers cellular network access, and the data part of the terminal pr...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W48/18H04W74/02
Inventor 彭代渊梁宏斌罗玉娇
Owner SOUTHWEST JIAOTONG UNIV
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