A self-powered self-backhaul method for small cell base stations based on full-duplex and large-scale antenna technology

A technology of small cell base stations and large-scale antennas, which is applied in duplex signal operation, wireless communication, power management, etc., and can solve problems such as high deployment costs and low environmental matching

CN106604300BActive Publication Date: 2020-01-10BEIJING UNIV OF POSTS & TELECOMM
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-01-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a small cell base station self-energy-supply self-back-transmission method based on the technologies of full duplex and large-scale antennas, and belongs to the technical field of wireless communication. The method comprises the specific steps: firstly building a system model of a user, a macro base station and small cell base stations; secondly enabling the macro base station and all small cell base stations to respectively measure the state information of each link channel in a certain period and to record the energy arrival rate value and the remaining energy value of a battery, and calculating each an advanced wave beam forming vector; thirdly carrying out the modeling of the link rates of the access of any user to the macro base station and the n-th small cell base station; fourthly carrying out the modeling of the back transmission link rate between the small cell base station and the macro base station; fifthly calculating the sum of the spectrum frequencies of all users access to a network; finally taking the spectrum frequencies as an optimization target, and building an optimization problem combining the user access selection and the power distribution. The method greatly reduces the network cost, improves the deployment flexibility of the small cell base stations, and enables the deployment of the small cell base stations not to be affected by landform and the energy supply level.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of wireless communication, in particular to a method for self-supply and self-backhaul of a small cell base station based on full-duplex and large-scale antenna technology. Background technique

[0002] Since the 21st century, the global economy has developed rapidly, science and technology are changing with each passing day, and high-speed communication technology is gradually applied to various fields of social life. The requirements of the information age for future communications are concentrated in: high reliability, high energy efficiency, low delay and high quality. The current third-generation and fourth-generation mobile communication technologies partially fulfill the above requirements, while sacrificing some other aspects of performance. Today, with the rapid development of the communication industry, these technologies can no longer meet the needs of users; how to effectively process massive in...

Examples

Embodiment Construction

[0078] The specific implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0079] The present invention is based on the full-duplex technology and the large-scale antenna technology self-supplying and self-returning method of the small cell base station. In this method, the small cell base station SBS uses the energy harvesting device to collect the energy in the surrounding environment and store it for the base station function. Cellular spectrum is used for user access and SBS backhaul. The enhanced block diagonal beamforming scheme for eliminating interference is adopted to eliminate cross-layer interference and multi-user interference at the same time; the algorithm adapted to joint user access and power allocation can effectively use energy according to the current energy level of the network to ensure users While improving the quality of service, the spectral efficiency of the network is improved....