BASE STATION AND METHOD FOR SELECTING BEST TRANSMIT ANTENNA(s) FOR SIGNALING CONTROL CHANNEL INFORMATION
First Claim
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1. A method for selecting one or more transmit antennas from which to transmit control channel information to one or more receivers, said method comprising the steps of:
- receiving channel quality information measurements from the one or more receivers; and
analyzing the received channel quality information measurements to select which transmit antenna(s) to use for transmitting the control channel information to the one or more receivers.
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Abstract
A base station is described herein which implements a method that uses different aspects of reported channel quality information (CQI) measurements to help select the “best” transmit antenna(s) on which to transmit control channel information to mobile terminal(s). The base station can also transmit a format indicator to communicate the assigned control channel transmit antenna(s) and the assigned data transmit antenna(s) to the mobile terminal(s).
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Citations
20 Claims
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1. A method for selecting one or more transmit antennas from which to transmit control channel information to one or more receivers, said method comprising the steps of:
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receiving channel quality information measurements from the one or more receivers; and
analyzing the received channel quality information measurements to select which transmit antenna(s) to use for transmitting the control channel information to the one or more receivers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A base station comprising:
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a user scheduling unit that receives channel quality information measurements and outputs user scheduling information and control channel information;
a control channel antenna mapping unit that receives the channel quality information measurements and the user scheduling information and processes the channel quality information measurements and the user scheduling information to select which transmit antenna(s) should be used to transmit the control channel information; and
an antenna switch that receives a transmit antenna selection from said control channel antenna mapping unit and the control channel information from said user scheduling unit and then uses the selected transmit antenna(s) to transmit the control channel information. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A receiver comprising:
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a receiving unit that receives a format indicator from a base station; and
a processor that processes the format indicator to determine which transmit antenna(s) in the base station are going to transmit control data channel information and which transmit antenna(s) in the base station are going to transmit data information. - View Dependent Claims (19, 20)
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Specification