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Base station apparatus and handover control method

A handover, base station technology, applied in the direction of selection device, network planning, electrical components, etc., can solve the problem of not significantly improving mobile station reception performance, increase, communication line interruption, etc.

Inactive Publication Date: 2002-08-21
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in hard handover, the advantage is that it can reduce the interference to the communication between other mobile stations, but the disadvantage is that the possibility of communication line interruption increases during handover, and the receiving performance of the mobile station cannot be significantly improved.

Method used

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  • Base station apparatus and handover control method
  • Base station apparatus and handover control method
  • Base station apparatus and handover control method

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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0033] FIG. 4 is a block diagram of main parts showing a schematic configuration of a base station apparatus according to an embodiment of the present invention. In FIG. 4 , base station 100 and mobile station 200 perform wireless communication. As shown in FIG. 1 , it is assumed that the base station 100 exists in a cell divided into three sectors A to C. As shown in FIG. However, the following description focuses on sector A and sector B for convenience of explanation.

[0034] The antenna A101, the transmitting and receiving unit A102, and the received power measuring unit A103 are installed corresponding to the sector A, respectively. The transmitter-receiver A102 performs predetermined radio processing and predetermined demodulation processing on the signal received via the antenna A101. The transmission / reception unit A102 performs predetermined modul...

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Abstract

During handover, reception power measuring section A103 measures a power value of a signal received via antenna A101 corresponding to sector A and reception power measuring section B105 measures a power value of a signal received via antenna B104 corresponding to sector B, comparison section 107 compares the power values, control section 108 determines whether a signal should be sent using a time slot corresponding to sector A or a time slot corresponding to sector B based on the comparison result and carries out switching control of switch 109. In this way, the status of time slot assignment during handover is changed as appropriate for every one frame.

Description

technical field [0001] The present invention relates to a base station device and a handover control method, and more particularly to a base station device and a handover control method used in a TDD (Time Division Duplex: Time Division Duplex) wireless communication system. Background technique [0002] In a cellular mobile communication system, a mobile station usually performs a handover near a cell boundary as a handover to a base station of a communicating party. In addition, the mobile station performs inter-sector handover in the same manner as inter-cell handover. There are generally two types of handoff methods: soft handoff and hard handoff. [0003] Hereinafter, inter-sector handover performed in a TDD radio communication system will be described with reference to FIGS. 1 to 3 . The TDD method is to divide the line of the same frequency band by time (time slot), and assign the communication channel of the downlink (the line used for the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/00H04W16/24H04W36/06
CPCH04W36/06H04W16/24
Inventor 平松胜彦北出崇
Owner PANASONIC CORP