Method and apparatus for transmitting beam information in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsHyun-Kyu Yu, Tae-Young Kim, Su-Ryong Jeong
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Abstract
A method and a mobile station of transmitting beam information by a mobile station in a wireless communication system are provided. The mobile station determines whether a particular a particular event according to communication with a base station has occurred, and transmits information on at least one DownLink (DL) transmission beam among N number of DL transmission beams to the base station using a contention-based feedback channel according to a result of the determination.
Claims22
A method for transmitting beam information by a mobile station in a wireless communication system, the method comprising:
- transmitting uplink reference signals through a plurality of uplink transmission beams of the mobile station;
- determining whether uplink feedback information for at least one uplink transmission beam among the plurality of uplink transmission beams is received from a base station within a preset time period;
- receiving, if the uplink feedback information is not received from the base station within the preset time period, downlink reference signals transmitted through a plurality of downlink transmission beams of the base station;
- and
- transmitting downlink feedback information generated based on receive strengths of the downlink reference signals.
A method for receiving beam information by a base station in a wireless communication system, the method comprising:
- transmitting uplink feedback information generated based on receive strengths of uplink reference signals transmitted through a plurality of uplink transmission beams of a mobile station;
- transmitting downlink reference signals through a plurality of downlink transmission beams of the base station;
- determining whether downlink feedback information for at least one downlink transmission beam among the plurality of downlink transmission beams is received from the mobile terminal within a preset time period;
- and
- determining, if the downlink feedback information is received from the mobile station, a downlink transmission beam to be used for downlink signal transmission to the mobile station among the plurality of downlink transmission beams based on the downlink feedback information.
A mobile station for transmitting beam information in a wireless communication system, the mobile station comprising:
- a transceiver configured to:
- transmit uplink reference signals through a plurality of uplink transmission beams of the mobile station, and
- transmit downlink feedback information generated based on receive strengths of downlink reference signals;
- a controller configured to determine whether uplink feedback information for at least one uplink transmission beam among the plurality of uplink transmission beams is received from a base station within a preset time period;
- and
- if the uplink feedback information is not received from the base station within the preset time period, the transceiver is further configured to receive the downlink reference signals transmitted through a plurality of downlink transmission beams of the base station.
A base station for receiving beam information in a wireless communication system, the base station comprising:
- a transceiver configured to:
- transmit uplink feedback information generated based on receive strengths of uplink reference signals transmitted through a plurality of uplink transmission beams of a mobile station, and
- transmit downlink reference signals through a plurality of downlink transmission beams of the base station;
- and
- a controller configured to:
- determine whether downlink feedback information for at least one downlink transmission beam among the plurality of downlink transmission beams is received from the mobile terminal within a preset time period, and
- determine, if the downlink feedback information is received from the mobile station, a downlink transmission beam to be used for downlink signal transmission to the mobile station among the plurality of downlink transmission beams based on the downlink feedback information.
Dependencies are inferred from the claim text.