Unlock instant, AI-driven research and patent intelligence for your innovation.

Radio connecting method and system for supporting multipe users and multiple systems

A multi-system, multi-user technology, applied in the selection device of multiplexing system, wavelength division multiplexing system, wireless communication, etc., can solve the problems of electromagnetic pollution, increase of base stations, limited bandwidth, etc., to reduce equipment cost, The effect of reducing pollution, equipment and site costs

Active Publication Date: 2007-06-27
WUHAN HONGXIN TELECOMM TECH CO LTD
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The development of wireless technology has encountered many development problems today: the application of wireless technology is becoming more and more extensive, but the frequency resources of radio are non-renewable, and the available frequency resources are less and less; with the increase of electromagnetic wave frequency, The effective coverage of a single base station is getting smaller and smaller, and the number of base stations must be increased to complete the coverage of the entire area
Wireless communication is very convenient, but the bandwidth is limited, there may be electromagnetic pollution, which is harmful to the human body, optical fiber communication can support a wide enough bandwidth, there is no electromagnetic pollution and electromagnetic interference, but the access is not flexible

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radio connecting method and system for supporting multipe users and multiple systems
  • Radio connecting method and system for supporting multipe users and multiple systems
  • Radio connecting method and system for supporting multipe users and multiple systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Through the distributed optical fiber network, the transmission distance of the wireless signal is extended, the attenuation is reduced, and the user rate is increased. The theoretical basis is as follows:

[0018] The loss of wireless signal propagation in free space conforms to the following laws:

[0019] Ls=Lbs-Gt-Gr

[0020] Among them, Ls is the overall loss value, Lbs is the free space loss, Gt and Gr are the transmitting and receiving antenna gains. According to the empirical formula: Lbs=32.45+201gf+201gd, where f is the frequency in MHZ, and d is the distance in KM.

[0021] That is, if f is a fixed value, then Lbs∝d n , n=2,

[0022] In a practical environment, Lbs∝d n , n is actually far greater than 2. Through a large number of experiments, there is an approximate rule: d15KM, n=5~6.

[0023] Through the above analysis, it can be seen that the signal strength decays exponentially with the propagation distance. The relationship between the signal tran...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes that the digital signals out of base band take multiplexing and anti-multiplexing in the passive optical network, and complete multi-user and multi-institution heavy load using the method of add-drop multiplexing. It proposes to use software radio technology to achieve more institutional widening module reuse, and realize to reduce the costs of equipment and site. It provides wireless access method and system supporting the multi-user and multi-system, and the system includes: the first add-drop multiplexer, optical line terminal, optical network unit, the second add-drop multiplexer, the widening base stations of different systems.

Description

technical field [0001] The present invention relates to a wireless access technology supporting multiple users and multiple systems, in particular to a wireless access method and system supporting multiple users and multiple systems. Background technique [0002] The development of wireless technology has encountered many development problems today: the application of wireless technology is becoming more and more extensive, but the frequency resources of radio are non-renewable, and the available frequency resources are less and less; with the increase of electromagnetic wave frequency, The effective coverage of a single base station is getting smaller and smaller, and the number of base stations must be increased to complete the coverage of the entire area. As a result, the cost of equipment covered by the base station, the cost of installation, maintenance and site leasing also increase accordingly. From an economic point of view, the number of base stations must be reduc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04Q11/00H04J14/02H04B10/29H04W88/10
Inventor 余建国
Owner WUHAN HONGXIN TELECOMM TECH CO LTD