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Mobile station, mobile radio communication system, mobile radio communication method, and mobile radio communication program

A mobile station, moving direction technology, applied in the field of mobile stations

Inactive Publication Date: 2011-01-05
LENOVO INNOVATIONS LTD HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, since the mobile station makes its own reference clock frequency follow the reference clock frequency from the base station at the time of communication as described above, any frequency difference in the two-way data communication of reception and transmission between the base station and the mobile station can be suppressed

Method used

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  • Mobile station, mobile radio communication system, mobile radio communication method, and mobile radio communication program
  • Mobile station, mobile radio communication system, mobile radio communication method, and mobile radio communication program
  • Mobile station, mobile radio communication system, mobile radio communication method, and mobile radio communication program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0106] Figure 1A and Figure 1B is a diagram showing the overall arrangement configuration and mobile communication status of a WCDMA mobile radio communication system (hereinafter also referred to as a WCDMA communication system for simplicity) as the first embodiment of the present invention. According to this example, as Figure 1A and Figure 1B As shown, for the sake of description, it is assumed that each of the base stations 101, 102, and 103 are arranged in a spaced and side-by-side relationship on a one-dimensional space in order from the left in the figure. Figure 1A The state of mobile communication before the mobile station 104 passes the base station 102 existing on the way while moving toward the right in the figure is shown. Figure 1B The situation of mobile communication after the mobile station 104 has passed the base stati...

Embodiment 2

[0163] Figure 3A and Figure 3B is a diagram illustrating the overall arrangement configuration of the WCDMA communication system according to the second embodiment of the present invention and the status of mobile communication. According to this Example 2, as Figure 3A and Figure 3B As shown, for the sake of description, it is assumed that each of the base stations 301, 302, and 303 are arranged in a spaced and side-by-side relationship on a one-dimensional space in order from the left in the figure. Figure 3A The state of mobile communication before the mobile station 304 passes the base station 302 existing on the way while moving toward the right side in the figure is shown. Figure 3B The situation of mobile communication after the mobile station 304 has passed the base station 302 is shown.

[0164] According to this second embodiment, mutually different transmission and reception frequencies are used in the base stations 301, 302, and 303. The mobile station 3...

Embodiment 3

[0182] Figure 5A and Figure 5B is a diagram for explaining the overall arrangement configuration of a WCDMA communication system as the third embodiment of the present invention and the status of mobile communication. Figure 6 It is a block diagram showing in detail the electrical configuration of the mobile station 504 shown in FIG. 5 . According to this Example 3, as Figure 5A and Figure 5B As shown, for the sake of description, it is assumed that each of the base stations 501, 502, and 503 are arranged in a spaced and side-by-side relationship in a one-dimensional space in order from the left in the figure. Figure 5A The state of mobile communication before a mobile station 504 (for example, an in-vehicle mobile station) passes a base station 502 existing on the way while moving toward the right side in the figure is shown. Figure 5B The situation of mobile communication after the mobile station 504 has passed the base station 502 is shown.

[0183] According to...

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PUM

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Abstract

Provided is a mobile radio communication method in which a mobile station rapidly moves between a plurality of base stations. In order to maintain a preferable communication quality when a mobile station performs communication while rapidly moving toward or apart from a base station, a large calculation amount is required, which in turn requires an increase of power consumption and an increase of heat generation. Provided is a mobile radio communication system including: detection means which detects fluctuations of relative positions between the mobile station and a plurality of base stations; and selection means which selects an uplink signal reception base station for receiving an uplink signal and selects one or more base stations having an increase / decrease of a distance from the local station in the opposite direction as compared to the aforementioned uplink signal reception base station, as a downlink signal transmission base station for transmitting a downlink signal, according to the fluctuation of the relative position detected by the detection means.

Description

technical field [0001] The present invention relates to a mobile station moving between a plurality of base stations, a mobile radio communication system including these base stations and mobile stations, and a mobile radio communication method and a mobile radio communication program in the mobile radio communication system. Background technique [0002] In a mobile radio communication system such as a cellular phone communication system that communicates between a base station fixed on the ground and a mobile station having a speed relative to the base station, the mobile station makes the frequency follow of a reference clock equipped in the mobile station be The frequency of the base station reference clock superimposed on the signal from the base station to the mobile station (downlink signal) (frequency acquisition and frequency following). In addition, the mobile station performs signal processing on the downlink signal based on the reference clock following the refer...

Claims

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Application Information

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IPC IPC(8): H04W48/20H04J13/00H04B1/707
CPCH04W36/32H04B1/7113H04W36/0069H04W36/326H04W72/51
Inventor 大贺敬之
Owner LENOVO INNOVATIONS LTD HONG KONG