Transmission control apparatus and transmission control method
First Claim
1. A transmission control apparatus for transmitting information by radio communication toward a mobile station located in a predetermined sector, the transmission control apparatus comprising:
- selecting means for selecting a transmission method according to a type of the information to be transmitted, the information including at least two different types of information, from options including at least two of omnisector transmission of transmitting the information to the entire sector, fixedly controlled directional beam transmission of transmitting the information to 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;
transmitting means for transmitting the information by the transmission method thus selected; and
multiplex control means for controlling transmission of the information by the transmitting means such that a pilot channel and corresponding channels for one of the at least two transmission methods is multiplexed with a pilot channel and corresponding channels for the other of the at least two transmission methods using a combination of at least two different multiplex structures from a time division multiplex structure, a frequency division multiplex structure, and a code division multiplex structure.
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Accused Products
Abstract
An object is to implement transmission by an appropriate transmission method according to a type of information even in application of directional beam transmission. A transmission control apparatus 12 for transmitting information by radio communication toward a mobile station located in a predetermined sector is provided with 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.
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Citations
12 Claims
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1. A transmission control apparatus for transmitting information by radio communication toward a mobile station located in a predetermined sector, the transmission control apparatus comprising:
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selecting means for selecting a transmission method according to a type of the information to be transmitted, the information including at least two different types of information, from options including at least two of omnisector transmission of transmitting the information to the entire sector, fixedly controlled directional beam transmission of transmitting the information to 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; transmitting means for transmitting the information by the transmission method thus selected; and multiplex control means for controlling transmission of the information by the transmitting means such that a pilot channel and corresponding channels for one of the at least two transmission methods is multiplexed with a pilot channel and corresponding channels for the other of the at least two transmission methods using a combination of at least two different multiplex structures from a time division multiplex structure, a frequency division multiplex structure, and a code division multiplex structure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transmission control method for transmitting information by radio communication toward a mobile station located in a predetermined sector, the transmission control method comprising:
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selecting a transmission method according to a type of the information to be transmitted, the information including at least two different types of information, from options including at least two of omnisector transmission of transmitting the information to the entire sector, fixedly controlled directional beam transmission of transmitting the information to 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; transmitting the information by the transmission method thus selected; and controlling transmission of the information by the transmitting such that a pilot channel and corresponding channels for one of the at least two transmission methods is multiplexed with a pilot channel and corresponding channels for the other of the at least two transmission methods using a combination of at least two different multiplex structures from a time division multiplex structure, a frequency division multiplex structure, and a code division multiplex structure. - View Dependent Claims (8, 9, 10, 11)
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12. A transmission control apparatus for transmitting information by radio communication toward a mobile station located in a predetermined sector, the transmission control apparatus comprising:
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a selecting unit configured to select a transmission method according to a type of the information to be transmitted, the information including at least two different types of information, from options including at least two of omnisector transmission of transmitting the information to the entire sector, fixedly controlled directional beam transmission of transmitting the information to 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; and a transmitting unit configured to transmit the information by the transmission method thus selected; and a multiplex control unit configured to control transmission of the information by the transmitting unit such that a pilot channel and corresponding channels for one of the at least two transmission methods is multiplexed with a pilot channel and corresponding channels for the other of the at least two transmission methods using a combination of at least two different multiplex structures from a time division multiplex structure, a frequency division multiplex structure, and a code division multiplex structure.
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Specification