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

Method and system based on mobile prediction and group switching

A group and handover request technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as call drop, data packet loss, and communication quality degradation, and achieve the effect of maintaining communication quality and switching quality

Inactive Publication Date: 2009-02-11
TONGJI UNIV
View PDF0 Cites 79 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Excessive signaling overhead during handover, handover delay, and data packet loss during handover lead to communication quality degradation and even call drop during handover;
[0004] The current handover strategy fails to quickly select the target base station by performing movement prediction according to the location movement information when the cinr (carrier-to-interference-to-noise ratio) drops sharply, which consumes a lot of time in the cell selection process;
[0005] For group mobile multi-user service connection handover, when disconnected from the original serving base station, the quality of service of each service cannot be completely maintained during the process of handover and re-entering the target base station. These problems may cause high-speed mobile terminal handover satisfaction decline

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
  • Method and system based on mobile prediction and group switching
  • Method and system based on mobile prediction and group switching
  • Method and system based on mobile prediction and group switching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] In the present invention, when the group user terminal in the large-scale public transportation is switched between different base stations, the target base station reselection process is simplified according to the position information change and movement prediction, and the connection re-establishment process is optimized. The multi-service user terminal performs channel configuration to achieve the process of fast switching of group users.

[0024] Taking the handover of all terminal users from the current serving base station A to the target base station B as an example, the group handover method in the embodiment is as follows, including the following steps:

[0025] In the process of scanning state, the mobile relay site where the group user terminal is located continuously measures the signals of neighboring cells and according to t...

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 group switch method based on a mobility prediction. Multi-service group user ends which move along fixed routes in a major public transportation system need to apply to a target base station for group switch according to detected changes of a wireless channel. The method further provides a mobility prediction based on location information, which comprises the following steps: the process of reselecting a target cell is simplified by using a mobile historical database; and the target cell is enabled to obtain relative information of all group users in advance through a backup backbone network. Required channel resources are reallocated through strategies such as borrowing channels, etc. Therefore, the system switch speed of the group user terminal is greatly improved, and QoS of broadband wireless communications in the switch process is guaranteed. The method further discloses a group switch system based on the mobility prediction, which mainly comprises a location information unit, a switch judging unit, a channel borrowing and resource allocating unit and a channel allocating unit.

Description

technical field [0001] The present invention relates to the field of broadband wireless communication, in particular to a group handover method and system based on movement prediction, which can be widely applied to group handover of multi-service group mobile users in large public transport vehicles. Background technique [0002] With the increasing technology of broadband wireless communication, future broadband mobile communication systems are expected to provide higher data transmission rates, wider signal coverage and support high-speed mobility. The traditional handover method usually uses each user terminal to continuously scan the quality of the wireless channel of the current serving base station. When the conditions required for communication cannot be maintained, the base station will be re-selected, and then switched to the adjacent base station with better signal strength. In the user-intensive urban environment, especially in the process of moving large-scale p...

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): H04Q7/38H04Q7/22H04L12/56H04L29/08
Inventor 刘富强徐尚志王新红钱业青王平李志鹏单联海刘凯杜珊高智伟王怡凌王丽
Owner TONGJI UNIV
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