Optimizing scanning beam penetration
AssigneeNEC Corporation
InventorsMohammad Khojastepour, Nariman Torkzaban
Life of this patent
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Abstract
Beamforming methods and systems include determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station. A set of scanning beams is selected based on the tradeoff curve. Devices around the base station are scanned for using the set of scanning beams. A set of transmission beams is selected for communications with the devices based on information received during the scanning. The set of transmission beams are used for transmission with a beamforming transmitter.
Claims17
A beamforming method, comprising:
- determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station with a recursive process that stops responsive to reaching a level of recursion where a number of tested beam patterns equals 2b2+b, where b is a number of scanning time slots;
- selecting a set of scanning beams based on the tradeoff curve;
- scanning for devices around the base station using the set of scanning beams;
- selecting a set of transmission beams for communications with the devices based on information received during the scanning;
- and
- transmitting using the set of transmission beams with a beamforming transmitter.
A beamforming control, comprising:
- a hardware processor;
- and
- a memory that stores a computer program which, when executed by the hardware processor, causes the hardware processor to:
- determine a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station with a recursive process that stops responsive to reaching a level of recursion where a number of tested beam patterns equals 2b{circumflex over ( )}2+b, where b is a number of scanning time slots;
- select a set of scanning beams based on the tradeoff curve;
- scan for devices around the base station using the set of scanning beams;
- and
- select a set of transmission beams for communications with the devices based on information received during the scan.
A transceiver, comprising:
- a phased array antenna comprising a plurality of antenna elements;
- a hardware processor;
- and
- a memory that stores a computer program which, when executed by the hardware processor, causes the hardware processor to:
- determine a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station with a recursive process that stops responsive to reaching a level of recursion where a number of tested beam patterns equals 2b{circumflex over ( )}2+b, where b is a number of scanning time slots;
- select a set of scanning beams based on the tradeoff curve;
- scan for devices around the base station using the set of scanning beams;
- select a set of transmission beams for communications with the devices based on information received during the scan;
- and
- transmit using the set of transmission beams with the phased array antenna.
Dependencies are inferred from the claim text.