DATA TRANSMITTING METHOD, BASE STATION APPARATUS AND MOBILE STATION APPARATUS
First Claim
1. A data transmitting method comprising:
- a step of reporting a maximum number of supported antennas of a mobile station apparatus supported by a base station apparatus to the mobile station apparatus;
a step of the mobile station apparatus comparing the number of supported antennas with the number of transmitting antennas of the mobile station apparatus and selecting the smaller number of antennas as a number of virtual antennas;
a step of reporting the number of virtual antennas to the base station apparatus;
a step of instructing the mobile station apparatus to transmit a data channel signal in accordance with the number of virtual antennas; and
a step of transmitting the data channel signal from the mobile station apparatus in accordance with the number of virtual antennas.
1 Assignment
0 Petitions
Accused Products
Abstract
A data rate in MIMO transmission is increased to a maximum even when the number of transmitting antennas of a mobile station apparatus is different from the number of transmitting antennas of the mobile station apparatus supported by a base station apparatus. The base station apparatus (eNodeB) reports the maximum number of supported antennas of the mobile station apparatus (UE) supported by the base station apparatus (eNodeB) to the mobile station apparatus (UE) (ST11). The mobile station apparatus (UE) compares the number of supported antennas with the number of transmitting antennas of the mobile station apparatus (UE), selects the smaller number of antennas as a number of virtual antennas (ST12), and reports the number of virtual antennas to the base station apparatus (eNodeB) (ST13). The base station apparatus (eNodeB) instructs the mobile station apparatus to transmit a data channel signal in accordance with the number of virtual antennas (ST15). The mobile station apparatus (UE) transmits a data channel signal to the base station apparatus (eNodeB) in accordance with the number of virtual antennas (ST20).
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Citations
19 Claims
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1. A data transmitting method comprising:
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a step of reporting a maximum number of supported antennas of a mobile station apparatus supported by a base station apparatus to the mobile station apparatus; a step of the mobile station apparatus comparing the number of supported antennas with the number of transmitting antennas of the mobile station apparatus and selecting the smaller number of antennas as a number of virtual antennas; a step of reporting the number of virtual antennas to the base station apparatus; a step of instructing the mobile station apparatus to transmit a data channel signal in accordance with the number of virtual antennas; and a step of transmitting the data channel signal from the mobile station apparatus in accordance with the number of virtual antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 18, 19)
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9. A data transmitting method comprising:
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a step of reporting a number of transmitting antennas of a mobile station apparatus to a base station apparatus; a step of the base station apparatus comparing the number of transmitting antennas with a maximum number of supported antennas of the mobile station apparatus supported by the base station apparatus and selecting the smaller number of antennas as a number of virtual antennas; a step of instructing the mobile station apparatus to transmit a data channel signal in accordance with the number of virtual antennas; and a step of transmitting a data channel signal from the mobile station apparatus in accordance with the number of virtual antennas. - View Dependent Claims (10, 11, 12, 13)
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14. A base station apparatus comprising:
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antenna information transmitting section configured to transmit a maximum number of supported antennas of a mobile station apparatus supported by the base station apparatus to the mobile station apparatus; antenna information receiving section configured to receive, from the mobile station apparatus, a number of virtual antennas made up of the smaller number of antennas of the number of supported antennas and the number of transmitting antennas of the mobile station apparatus; and instruction information transmitting section configured to transmit instruction information for instructing transmission of a data channel signal in accordance with the number of virtual antennas to the mobile station apparatus.
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15. A base station apparatus comprising:
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antenna information receiving section configured to receive the number of transmitting antennas of a mobile station apparatus; selecting section configured to compare the number of transmitting antennas with a maximum number of supported antennas of the mobile station apparatus supported by the base station apparatus and selecting the smaller number of antennas as a number of virtual antennas; and instruction information transmitting section configured to transmit instruction information for instruction transmission of a data channel signal in accordance with the number of virtual antennas to the mobile station apparatus.
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16. A mobile station apparatus comprising:
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antenna information receiving section configured to receive a maximum number of supported antennas of the mobile station apparatus supported by a base station apparatus; selecting section configured to compare the number of supported antennas with the number of transmitting antennas of the mobile station apparatus and selecting the smaller number of antennas as a number of virtual antennas; antenna information transmitting section configured to transmit the number of virtual antennas to the base station apparatus; instruction information receiving section configured to receive instruction information for instructing transmission of a data channel signal in accordance with the number of virtual antennas; and data transmitting section configured to transmit a data channel signal in accordance with the number of virtual antennas based on the instruction information.
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17. A mobile station apparatus comprising:
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antenna information transmitting section configured to transmit the number of transmitting antennas of the mobile station apparatus to a base station apparatus; instruction information receiving section configured to receive instruction information for instructing transmission a data channel signal using a number of virtual antennas made up of the smaller number of antennas of the number of transmitting antennas and a maximum number of supported antennas of the mobile station apparatus supported by the base station apparatus; and data transmitting section configured to transmit a data channel signal in accordance with the number of virtual antennas based on the instruction information.
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Specification