Energy efficiency-based resource allocation method for LTE network

A resource allocation and network technology, applied in the LTE network field, can solve problems such as unreasonable and effective utilization and unbalanced load, and achieve the effects of improving spectrum resource utilization, energy saving, and effective utilization

Active Publication Date: 2012-11-21
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is: the service flow for the entire network changes dynamically with time, and has great randomness, which causes the load in the entire network to always be in an unbalanced state, so that when the unbalanced low A large number of spectrum resources in the load network are idle and have not been reasonably and effectively utilized

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  • Energy efficiency-based resource allocation method for LTE network
  • Energy efficiency-based resource allocation method for LTE network
  • Energy efficiency-based resource allocation method for LTE network

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Embodiment Construction

[0028] The present invention effectively combines virtual load balancing and bandwidth expansion to try to realize the full utilization of wireless network spectrum resources in multiple cells, thereby achieving the purpose of reducing the total power consumption of multi-cell downlinks for resource allocation. Specifically include:

[0029] 1. Virtual load balancing:

[0030]The location information of other cells is added to the current cell configuration, and the cells exchange their own load information with each other. Each cell in the network uses the obtained load information to determine whether to start virtual load balancing. If necessary, the current virtual high-load cell sends a load sharing handover request to the target low-load neighbor cell. Affecting the user's service quality, the user who performs handover must be a user in the overlapping area of ​​two cells). Different from conventional load balancing, the current virtual high-load cell does not have t...

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Abstract

The invention provides an energy efficiency-based resource allocation method for an LTE (Long Term Evolution) network, which is suitable for the LTE network and solution of a problem that possible uneven distribution of the load in the whole network is led since a user terminal and a corresponding service flow have randomness and time-variance when entering into cells. According to the invention, whether virtual load balancing is executed or not is judged according to a load condition of each cell, thus the whole network is in an equalization state ; and after finishing of the process of the virtual load balancing, bandwidth extension for users in each cell is automatically started, priority of signal channel quality of the users is sequenced from high to low, and a user with higher priority in each round of allocation has a preferential right of being allocated an extra RB (Radio Beacon). According to the energy efficiency-based resource allocation method for the LTE network based on the reasonable and effective utilization of frequency spectrum resource in the whole network, a purpose of reduction of energy consumption of the whole network is eventually achieved, and accordingly, the frequency spectrum utilization ratio of the whole network is greatly improved.

Description

technical field [0001] The present invention relates to an LTE network, in particular to a resource allocation method in the LTE network. Background technique [0002] LTE (Long Term Evolution) is a new technology research and development project launched by 3GPP (the 3rd Generation Partnership Project) in recent years. It mainly uses core technologies such as new architecture, OFDM (Orthogonal Frequency Division Multiplexing), and MIMO (Multiple Input Multiple Output) sign. However, with the rapid development of mobile communication systems and the continuous expansion of network construction scale, the annual power consumption of the entire communication industry has risen sharply, which not only brings a large burden of operating costs to operators, but also brings pollution to the environment . Therefore, realizing green communication and adopting an efficient green wireless network energy-saving algorithm is an indispensable work for the communication industry, especi...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W36/22
CPCY02D30/70
Inventor 李云刘文晶刘期烈
Owner CHONGQING UNIV OF POSTS & TELECOMM
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