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Base station switching method and system in wireless communication

A base station switching and wireless communication technology, applied in the field of wireless communication

Active Publication Date: 2013-05-08
SHANGHAI RES CENT FOR WIRELESS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of inertial positioning has high autonomy and is not easily disturbed by external conditions and other human factors, but it must use high-precision positioning information for regular corrections

Method used

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  • Base station switching method and system in wireless communication
  • Base station switching method and system in wireless communication
  • Base station switching method and system in wireless communication

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Embodiment 1

[0056] Considering the complementarity of satellite positioning and inertial positioning, the present invention proposes a switching scheme combining satellite positioning and inertial measurement, which can be used in a wireless cellular mobile communication network under a high-speed railway environment.

[0057] see figure 1 , Figure 5 , the handover method of combining satellite positioning and inertial measurement in wireless communication disclosed by the present invention, the method includes the following steps:

[0058] First of all, the periodic broadcast information of the satellite is measured through GPS, Beidou and other satellite positioning systems. At the same time, the inertial system on the mobile station also measures the operating status of the mobile station.

[0059] Secondly, the measurement results of different systems are filtered and other data are fused to obtain the accurate position and speed information of the mobile station, and the distance f...

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Abstract

The invention discloses a base station switching method and a system in wireless communication. The base station switching method comprises the following steps: step 1, a satellite positioning system is used for measuring periodic broadcast message of a satellite, and meanwhile, an inertia measurement system arranged on a mobile station is used for measuring operating states of the mobile station; step 2, data of the measuring results of the satellite positioning system and the inertia measurement system are fused, the accurate position and speed information of the mobile station can be obtained, the distance and the path from the mobile station to a base station can be calculated, and time moving to an appointed switching point under the current speed can be calculated; and step 3, when the mobile station moves to the appointed switching point, handover is carried out. The base station switching method solves the problem that instability and time-lag in the process of switching according to signal strength in switching technology cause problems, solves the problem of switching failure and communication outage when the satellite has operation faults in the satellite positioning auxiliary switching technology, and guarantees stable and continuous proceeding of communication of the mobile station.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a base station switching method, in particular to a base station switching method in wireless communication; at the same time, the invention also relates to a base station switching system in wireless communication. Background technique [0002] In a wireless communication system, if a mobile station moves at a high speed, it is likely to cause frequent handovers. If the signal strength of the two base stations changes drastically in a certain area, the terminal will switch back and forth between the two base stations, resulting in the so-called "ping-pong effect". [0003] The existing technology mainly uses the received signal strength to switch, but this technology, due to the high-speed movement of the mobile station and the complex and changeable weather and terrain environment, the signal strength changes greatly. At this time, direct switching based on the mea...

Claims

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Application Information

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IPC IPC(8): H04W36/30
Inventor 陆犇杨洪生陈学泉陈谦屈海宁卜智勇
Owner SHANGHAI RES CENT FOR WIRELESS TECH
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