Transmitting controller and transmitting controlling method

Abstract

The invention relates to a transmitting controller and a transmitting controlling method capable of transmitting in a appropriate transmission manner based on a type of information even in application of directional beam transmission. The transmitting controller 12 comprises: a selector (12B) for selecting a transmission method according to a type of information to be transmitted, out of two or more options selected from omnisector transmission of transmitting the information toward the entire sector, fixedly controlled directional beam transmission of transmitting the information in at least one fixed direction preliminarily determined, and adaptively controlled directional beam transmission of adaptively controlling a transmission direction according to a location of a target mobile station; pilot symbol generators (12C, 12E, 12G) for generating respective pilot signals according to associated transmission methods; and transmitters (12D, 12F, 12H) each transmitting a signal in which a pilot signal is superimposed on the information to be transmitted, by the selected transmission method.

Description

technical field [0001] The present invention relates to a transmission control apparatus and a transmission control method for transmitting wireless communication information to a mobile station located in a predetermined sector. Background technique [0002] Multiple dipole antennas are arranged in the array. Through signal processing and proper control of the weight coefficient of each antenna, the gain of the antenna in a specific direction can be increased or decreased. This adjustment of the antenna gain in a specific direction, The technique of forming directional beams is extremely useful in wireless transmission systems. This is because when transmitting signals, if the gain of the antenna can be increased in the desired direction, it is possible to achieve low-power transmission. signal interference. [0003] Using this directional beam transmission principle, in W-CDMA (Wideband Code Division Multiple Access) (Wideband Code Division Multiple Access), one of the w...

AI Technical Summary

Problems solved by technology

[0004] However, among the above-mentioned transmission studies using antenna directivity, most of the studies do not conduct directional beam transmission, but focus on the case of comparison with full-sector transmission of signals transmitted in the coverage area (sector) of the base station In terms of the improvement effect of adding user capacity under the following, the separate use of the transmission methods of full-sector transmission and directional beam transmission, and the allocation method suitable for the types of transmission signals of each transmission method have not been studied.

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