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

Preamble allocation method applied in M2Mcommunication on basis of different delay services

An allocation method and preamble technology, applied in the field of preamble allocation, can solve the problems of insignificant effect, inability to meet M2M equipment delay requirements, complex preamble allocation design scheme, etc., achieving a clever and novel method and reducing the average access time. delay, the effect of reducing the average access delay

Inactive Publication Date: 2018-02-09
ARMY ENG UNIV OF PLA
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the problems in the existing technology are: the preamble allocation design scheme is complex, and the effect is not significant, and cannot meet the delay requirements of delay-sensitive M2M devices

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
  • Preamble allocation method applied in M2Mcommunication on basis of different delay services
  • Preamble allocation method applied in M2Mcommunication on basis of different delay services
  • Preamble allocation method applied in M2Mcommunication on basis of different delay services

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Such as figure 1 As shown, a preamble allocation method based on different delay services in M2M communication includes the following steps:

[0049] (10) Complete the grouping of M2M devices: divide the cell into K groups centered on the base station, and all M2M devices determine their own groupings according to their spatial positions;

[0050] Such as figure 2 As shown, the (10) cell equipment grouping step includes:

[0051] (11) Determine the number of groups in the cell: In order to satisfy the average access delay of all devices in the cell as small as possible, the average access delay is taken as the optimization target, and the functional relationship between the average access delay and the number of groups is established to determine Number of cell groups;

[0052] (12) Determine the coverage distance of each group: see the attached Figure 6 , each group is centered on the location of the base station, the first group is a circle, and the other groups...

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 discloses a preamble allocation method applied in M2Mcommunication on the basis of different delay services. The preamble allocation method comprises the steps that M2M devices are grouped, and each group generates a series of preambles which are used in a mutually independent mode; the devices with high priorities in each group select the preambles preferentially; and the serial numbers of the selected preambles are broadcast in each group to prevent the conflict caused by the fact that multiple devices select the same preamble. According to the preamble allocation method, not only can the delay requirement of the services with high priorities be met to shorten the average access delay of the M2M devices, but also the preamble selection conflict can be avoided maximally to decrease the access conflict rate.

Description

technical field [0001] The invention belongs to the technical field of machine communication, in particular to a preamble allocation method based on different delay services in M2M communication. Background technique [0002] M2M (Machine-to-Machine) communication means that devices can transmit information in a wired or wireless manner without human intervention. With the advent of the Internet of Things era, the M2M communication proposed by the 3GPP organization has become the basis of the Internet of Things communication. Thousands of M2M devices are deployed around the world for environment perception and machine interaction, and the interconnection between devices and devices and between devices and base stations together form a huge IoT system. [0003] Due to the huge commercial value and broad application prospects of M2M services, such as smart transportation, smart grid, earthquake monitoring, consumer equipment, smart home, public security and smart medical care...

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): H04W4/70H04W74/08H04L5/00
CPCH04L5/0048H04W74/085
Inventor 王聪刘冬雪李宁谢威
Owner ARMY ENG UNIV OF PLA