Heterogeneous wireless network networking method based on calculation and processing

Abstract

A heterogeneous wireless network networking method based on calculation and processing integrates features of a heterogeneous network and features of a cloud wireless access network, and a large-scale cooperative processing and multi-antenna technology is utilized for fully obtaining large-scale cooperative processing and calculation communication gains, reducing operating expenses, improving the network transmission frequency spectrum performance and reducing energy consumption. According to the heterogeneous wireless network networking method, a remote radio frequency unit is not directly connected with a fixed baseband processing unit, but the baseband processing unit and a wireless resource management unit of the remote radio frequency unit are both moved to a large-scale centralized processing server and are connected through a high-speed optical fiber. A traditional macro base station is upgraded to be a heterogeneous multi-antenna super base station to be in cooperative communication with the large-scale centralized processing server. The heterogeneous wireless network networking method based on calculation and processing is flexible in deployment and high in upgrading speed, the cost of constructing and maintaining the wireless access network by operators is lowered, and human intervention in network management is reduced.

Description

technical field [0001] The present invention relates to a networking method of a wireless network system, more precisely, to a computing-based heterogeneous wireless network networking method, and belongs to the technical field of heterogeneous wireless networks. Background technique [0002] In recent years, the demands of mobile users for many applications of high-speed data (such as: wireless high-definition video, social networking and peer-to-peer instant messaging, etc.) have grown exponentially. The future wireless network will provide a user experience similar to ADSL (Asymmetric Digital Subscriber Line) technology. This means that the average area capacity of the mobile communication system will reach 25Gbps / km2, or even higher; this is equivalent to a 100-fold increase in the spectral efficiency of the existing mobile communication system. At the same time, the power consumption of the network needs to be further reduced. By 2020, the expected energy efficiency (E...

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Problems solved by technology

However, on the other hand, a large number of remote radio units will also lead to more serious and complex interference problems between each remote radio unit or each cell, and the traditional interference coordination technology is no longer fully effective

For example, in a heterogeneous network, the performance gain of Coordinated Multi-Point (Coordinated Multi-Point) technology will gradually decrease as the deployment density of remote radio units increases, and its advantages in 4G networks cannot be demonstrated

[0005] In addition, due to the coexistence of traditional heterogeneous processing nodes (Heterogeneous Processing Nodes) including cell macro base stations and broadband access network access points, and remote radio units, mobile users are faced with the problem of accessing the network

Although the remote radio unit can provide a higher transmission rate, due to its small coverage, mobile users may need to switch frequently between low-power nodes, resulting in a high handover failure rate and affecting the quality of service (QoS). Service)

Although macro base stations can provide large-area coverage, they also have the disadvantages of limited capacity and low data rates

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