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Multi-service isolation method for power wireless private network system

A wireless private network and multi-service technology, applied in the transmission system, wireless communication, electrical components, etc., can solve the problems of not considering the dynamic interference of frequency resources, not considering the unified air interface multi-service support and isolation, etc., to achieve random Access and paging resource isolation, enhanced service system information indication, and the effects of extended range

Active Publication Date: 2019-04-12
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0004] In order to ensure the stable operation of the electric power wireless private network system in the 230MHz frequency band, the prior art discloses a technique to achieve approximate physical isolation of services in different regions by means of service processor isolation, transmission channel isolation, memory space isolation, and air interface isolation ( Patent announcement number CN107734499A), however, this technology does not consider the dynamics of frequency resources and possible interference, nor does it consider the use of a unified air interface to support and isolate multiple services

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  • Multi-service isolation method for power wireless private network system
  • Multi-service isolation method for power wireless private network system
  • Multi-service isolation method for power wireless private network system

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Embodiment Construction

[0021] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0022] The power wireless private network carries services such as precise load control, power distribution automation, and power consumption information collection. Among them, the precise load control business belongs to the production control area, and has very high requirements on reliability, delay, and security. If the precise load control service shares wireless transmission resources with other services, performance indicators such as delay and reliability may fluctuate greatly due to resource preemption between services. Therefore, the power wireless private network should support the division of dedicated resources for high-priority services, and multiple physically separated transmission resource pools can be configured for different types of services.

[0023] Such as figure 1 , 2 As shown, the present invention is a multi-service iso...

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Abstract

The invention relates to a multi-service isolation method for a power wireless private network system. The method comprises the following steps: scanning frequency resources and counting interferences, configuring control and data channel resource pools, broadcasting the service list and channel resources, knowing randomly accessed resource pools, establishing a connection and reporting the service ID, and configuring base station control and data channel resources. The method adopts the spectrum sensing technology to obtain the frequency use and interference situation in the spectrum range of230 MHz to effectively evaluate interference levels of each frequency sub-band, requires timely avoiding when the frequency point is used and the interference is large, dynamically selects non-interference or less-interference sub-bands. updates the allocatable frequency resources, allocates dedicated resources for high-priority services, configures multiple transmission resource pools that are physically isolated from each other for use of different types of services, and supports flexible configuration of multiple transmission resource pools to adapt to regional differences in spectrum resources and terminal distribution differences to improve resource utilization efficiency.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for isolating multiple services in a power wireless private network system. Background technique [0002] The power wireless private network communicates based on the 230MHz dedicated frequency band allocated by the State Radio Regulatory Commission. Its frequency points are discretely distributed in a total of 12MHz bandwidth from 223MHz to 235MHz, and each frequency point has a bandwidth of 25KHz. In addition, there are 360 ​​frequency points within this frequency range (A total of 9MHz bandwidth) is approved by the radio management offices of various cities and needs to be applied for use. With the application and promotion of electric power wireless private network, 230MHz electric power wireless private network, 230MHz data transmission radio station and other high-power radio stations may coexist in the spectrum of 230MHz frequency band at the same t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/10H04W72/12H04B17/382H04W72/54
CPCH04B17/382H04W72/541H04W72/542H04W72/56H04W72/569
Inventor 周志刚张梦莹李慧杨秀梅王海峰卜智勇陆犇郑敏
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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