Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Random access method in smart power grid communication

A smart grid communication and random access technology, applied in wireless communication, electrical components, etc., can solve the problems affecting the random access of voice and data communication and increase the probability of collision, so as to reduce the probability of random access collision and avoid impact , The effect of saving signaling resources

Inactive Publication Date: 2014-06-04
UNIV OF SCI & TECH OF CHINA +2
View PDF10 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of meters and the frequent and periodic reporting of data, the probability of multiple meters selecting the same preamble is high, resulting in a greatly increased collision probability during the random access process and affecting the random access of traditional voice and data communications

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
  • Random access method in smart power grid communication
  • Random access method in smart power grid communication
  • Random access method in smart power grid communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] For example, there are multiple common users and smart meters within the coverage of an LTE base station, and a contention-based random access process is performed when communication services are needed. Assume that in a time slot, 2 common users and 20 smart meters simultaneously initiate contention-based random access. In the conventional random access method, there are 64 preambles in total. Assuming that there are 40 contention-based preambles, the probability of successful access of a user / smart meter is:

[0033] P 1 = ( 1 - 1 40 ) 22 - 1 = 0.587

[0034] If the random access method of the present invention is adopted, that is, two ordinary users use the original 40 preambles based on contention, and th...

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 provides a random access method in smart power grid communication. Under the condition of not increasing additional signaling overheads, the random access collision probability is lowered, and system performance is improved. Due to the fact that multiple smart power grid devices exist and carry out data reporting frequently, the random access collision probability is greatly improved, and the random access process of a common user can be influenced. The random access process for the smart power grid scene is provided. Two different leader sequence sets are generated and used for the common user and a smart power grid respectively. One of MAC RARs is used for reserving bits for marking whether random access is from the common user or the smart power grid. Therefore, under the condition that no additional signaling overhead exists, the random access collision probability of the smart power grid can be reduced, and the random access of the common user cannot be influenced.

Description

technical field [0001] The invention relates to a random access process in smart grid wireless communication, which reduces the probability of random access collisions. Background technique [0002] Smart grid is a modern grid system that combines communication network and grid system. Through the real-time collection and analysis of data in the power grid, the purpose of power load control and demand response can be achieved, energy utilization efficiency can be improved, and safe, reliable and high-quality power supply can be ensured. In the smart grid, there are a large number of advanced sensing and measurement technologies and equipment in the links of power generation, power transmission, power distribution, and power consumption, which require the support of network communication technology. However, communication in the smart grid is different from traditional data or voice services, and has specific characteristics and requirements. For example, there are many ter...

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
IPC IPC(8): H04W74/08
Inventor 杨坚司鹏郭经红张浩
Owner UNIV OF SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com