Pulse or digital communications – Transmitters – Plural diversity
Reexamination Certificate
2011-04-05
2011-04-05
Kim, Kevin Y (Department: 2611)
Pulse or digital communications
Transmitters
Plural diversity
Reexamination Certificate
active
07920646
ABSTRACT:
The present invention relates to a system for selecting a switched beam for supplying a maximum received power to a subscriber station, and a method thereof. The number of switched beams used by a base station is limited, and a weight value vector for forming the switched beam is predefined. The subscriber station uses a pilot signal for discerning transmitting antennas to estimate channel values for the respective transmitting antennas, and uses the channel values and the predefined weight value vectors to determine a switched beam for supplying a maximum signal-to-noise ratio (SNR). The subscriber station notifies the base station of an identifier of a selected beam by using a feedback channel, and the base station uses the switched beam to transmit traffic data.
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Choi In-Kyeong
Kwon Dong-Seung
Song Young-Seog
Yeh Choong-Il
Jefferson IP Law., LLP
Kim Kevin Y
Samsung Electronics Co,. Ltd
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