WIRELESS COMMUNICATION SYSTEM, TERMINAL APPARATUS, BASE STATION APPARATUS, CONTROL METHOD, PROGRAM, AND RECORDING MEDIUM
First Claim
1. A wireless communication system, comprising a plurality of cells in each of which a base station apparatus is provided, the base station apparatuses being connected to one another via a network,each of the base station apparatuses, comprising:
- storage means for storing at least information on interference quantities of a signal transmitted, to a terminal apparatus in a corresponding one of the cells in which the each of the base station apparatuses is provided, from another cell different from the corresponding one of the cells;
notification means for notifying the information stored in the storage means to the network; and
setting means for setting, on the basis of the information on the interference quantities, transmission methods by which a signal is transmitted to the terminal apparatus.
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Accused Products
Abstract
A wireless communication system of the present invention includes a plurality of cells in each of which a base station apparatus (BS) is provided, the base station apparatuses (BS) being connected to one another via a network, each of the base station apparatuses (BS), including: an interference quantity information storage section (29) for storing at least information on interference quantities of a signal transmitted, to a terminal apparatus in a corresponding one of the cells in which the each of the base station apparatuses is provided, from another cell different from the corresponding one of the cells; a transmission section (22) for notifying the information stored in the interference quantity information storage section (29) to the network; and a transmission method determination section (25) for determining, on the basis of the information on the interference quantities, transmission methods by which a signal is transmitted to the terminal apparatus. This makes it possible to reduce inter-cell interference in the terminal apparatus (BS) located in an adjacent cell by means of a simple process.
21 Citations
14 Claims
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1. A wireless communication system, comprising a plurality of cells in each of which a base station apparatus is provided, the base station apparatuses being connected to one another via a network,
each of the base station apparatuses, comprising: -
storage means for storing at least information on interference quantities of a signal transmitted, to a terminal apparatus in a corresponding one of the cells in which the each of the base station apparatuses is provided, from another cell different from the corresponding one of the cells; notification means for notifying the information stored in the storage means to the network; and setting means for setting, on the basis of the information on the interference quantities, transmission methods by which a signal is transmitted to the terminal apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Base station apparatuses, which constitute a wireless communication system, comprising a plurality of cells in each of which a base station apparatus is provided, the base station apparatuses being connected to one another via a network,
each of the base station apparatuses, comprising: -
storage means for storing at least information on interference quantities of a signal transmitted, to a terminal apparatus in a corresponding one of the cells in which the each of the base station apparatuses is provided, from another cell different from the corresponding one of the cells; notification means for notifying the information stored in the storage means to the network; and setting means for setting, on the basis of the information on the interference quantities, transmission methods by which the signal is transmitted to the terminal apparatus.
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11. A terminal apparatus, for use in a wireless communication system which comprises a plurality of cells in each of which a base station apparatus is provided, the base station apparatuses being connected to one another via a network,
the terminal apparatus, comprising: -
measurement means for measuring interference quantities of a signal transmitted from another cell different from a cell in which the terminal apparatus is provided; and transmission means for transmitting information on the interference quantities thus measured to a corresponding one of the base station apparatuses.
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12. A method for controlling a wireless communication system which comprises a plurality of cells in each of which a base station apparatus is provided, the base station apparatuses being connected to one another via a network,
said method comprising the steps of: -
storing information on interference quantities of a signal transmitted from another cell different from a cell in which the terminal apparatus is provided; notifying the information stored in the storage means to the network; and setting, on the basis of the information on the interference quantities, transmission methods by which the signal is transmitted to the terminal apparatus. - View Dependent Claims (13, 14)
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Specification