Wireless base station, wireless communication method, and wireless communication system
AssigneeFujitsu Limited
InventorShinya Kumagai
Life of this patent
Estimating the term…
Abstract
A wireless base station that includes: a transmitter that employs a plurality of antenna elements to form a beam in each of a plurality of transmission directions and transmit a reference signal; a receiver that receives a value representing reception quality of the reference signal for a user device that has received the reference signal; a memory; and a processor connected to the memory, the processor being configured to employ an indicator value, representing reception quality for a user device group computed from values received by the receiver that represent reception quality for each of a plurality of user devices, in order to select a combination of beams to employ in user data transmission from the plurality of beams transmitted by the transmitter.
Claims15
A wireless base station comprising:
- a transmitter that employs a plurality of antenna elements to form a beam in each of a plurality of transmission directions and transmit a reference signal;
- a receiver that receives a value representing reception quality of the reference signal for a user device that has received the reference signal;
- a memory;
- and
- a processor connected to the memory, the processor being configured to employ an indicator value, representing reception quality for a user device group computed from values received by the receiver that represent reception quality for each of a plurality of user devices, in order to select a combination of beams to employ in user data transmission from a plurality of beams transmitted by the transmitter.
A wireless communication method employed by a wireless base station provided with a plurality of antenna elements, the wireless communication method comprising:
- forming a beam in each of a plurality of transmission directions and transmitting a reference signal by employing the plurality of antenna elements;
- receiving a value representing reception quality of the reference signal for a user device that has received the reference signal;
- and
- by a processor, by employing an indicator value representing reception quality for a user device group computed from received values that represent reception quality for each of a plurality of user devices, selecting a combination of beams to employ in user data transmission from a plurality of transmitted beams.
A wireless communication system comprising:
- a wireless base station including:
- a transmitter that employs a plurality of antenna elements to form a beam in each of a plurality of transmission directions and transmit a reference signal,
- a receiver that receives a value representing reception quality of the reference signal for a user device that has received the reference signal,
- a memory, and
- a processor connected to the memory, the processor being configured to employ an indicator value, representing reception quality for a user device group computed from values received by the receiver that represent reception quality for each of a plurality of user devices, in order to select a combination of beams to employ in user data transmission from a plurality of beams transmitted by the transmitter;
- and
- the plurality of user devices, each user device including:
- a receiver that receives the reference signal, and
- a transmitter that transmits the value representing the reference signal reception quality to the wireless base station.
Dependencies are inferred from the claim text.