Mobile communication apparatus and method including base station and mobile station having muti-antenna
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Abstract
A mobile communication apparatus that utilizes multiple base station/mobile station antennas and a mobile communication method performed therein are provided. The mobile communication apparatus includes a base station having at least two antennas and at least two mobile stations having at least one antenna, respectively. The base station restores weight information and channel status information from feedback signals received from the mobile stations, determines downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information, selects mobile stations for simultaneous transmission based on the downlink investigation information, and processes data to be transmitted to the selected mobile stations based on the downlink investigation information.
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Citations
54 Claims
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28. A base station comprising:
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at least two base station antennas, and the base station restoring weight information and channel status information from feedback signals received from a first plurality of mobile stations, determining downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information, selecting a second plurality of mobile stations for simultaneous transmission from among the first plurality of mobile stations based on the downlink investigation information, and processing data to be transmitted to the selected mobile stations based on the downlink investigation information. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A base station comprising:
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at least two base station antennas, the base station restoring weight information and channel status information from feedback signals received from a first plurality of mobile stations, determining downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information, selecting mobile stations for simultaneous transmission from among the first plurality of mobile stations based on the downlink investigation information, determining downlink tracking information based on the channel downlink investigation information and restored weight information and channel status information regarding the selected mobile stations, and processing data to be transmitted to the selected mobile stations based on the downlink tracking information. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
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37. A mobile station, comprising:
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at least one mobile station antenna, and the mobile station measuring downlink characteristics of multiple base station/mobile station antenna channels based on pilot channel signals transmitted from a base station, determining weight information and channel status information based on the downlink characteristics, converting the determined weight information and channel status information into feedback signals, transmitting the feedback signals to the base station, and detecting high-speed downlink shared channel (HS-DSCH) signals in units of a frame based on the downlink characteristics, and a first control signal and data signals, which are transmitted from the base station. - View Dependent Claims (45)
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46. A method of mobile communications performed in a base station including at least two base station antennas, the method comprising:
- (a) restoring weight information and channel status information from feedback signals received from a first plurality of mobile stations;
determining downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information;
selecting a second plurality of mobile stations for simultaneous transmission from among the first plurality of mobile stations based on the downlink investigation information; and
processing data to be transmitted to the selected mobile stations based on the downlink investigation information. - View Dependent Claims (49, 50, 51)
- (a) restoring weight information and channel status information from feedback signals received from a first plurality of mobile stations;
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47. A method of mobile communications performed in a base station including at least two base station antennas, the method comprising:
- (a) restoring weight information and channel status information from feedback signals received from of mobile stations;
determining downlink investigation information that results in maximum transmission channel capacity based on the restored weight information and channel status information;
selecting a second plurality of mobile stations for simultaneous transmission from among the first plurality of mobile stations based on the downlink investigation information;
determining downlink tracking information based on the channel downlink investigation information and restored weight information and channel status information regarding the selected mobile stations; and
processing data to be transmitted to the selected mobile stations based on the downlink tracking information. - View Dependent Claims (54)
- (a) restoring weight information and channel status information from feedback signals received from of mobile stations;
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48. A method of mobile communications performed in a mobile station, the method comprising:
- measuring downlink characteristics of multiple base station/mobile station antenna channels based on pilot channel signals transmitted from a base station;
determining weight information and channel status information based on the downlink characteristics;
converting the determined weight information and channel status information into the feedback signals;
transmitting the feedback signals to the base station; and
detecting high-speed downlink shared channel (HS-DSCH) signals in units of a frame based on the downlink characteristics, and a first control signal and data signals, which are transmitted from the base station.
- measuring downlink characteristics of multiple base station/mobile station antenna channels based on pilot channel signals transmitted from a base station;
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52-1. The method of claim 52, wherein step (a) further comprises (a7) generating mobile station fairness information that is considered when generating the downlink investigation information.
Specification