Method and apparatus for transmitting and receiving a signal in a communication system
AssigneeIntellectual Discovery Co., Ltd.
InventorsYoung Chai Ko, Hae Woon Nam, Seung Sik Eom
Life of this patent
Estimating the term…
Abstract
A method and an apparatus for transmitting and receiving a signal in a communication system are provided. The method includes transmitting a signal to a receiver through one of the antennas, receiving an antenna switching indicator indicating to switch the transmitting antenna from the receiver, and switching the transmitting antenna according to the antenna switching indicator, and transmitting a signal to the receiver through a switched antenna.
Claims17
A method of transmitting and receiving a signal at a transmitter including a plurality of antennas used for millimeter waves, the method comprising:
- transmitting, to a receiver, information indicating a threshold value for antenna switching;
- transmitting, to the receiver, a first signal through a transmitting antenna which is one of the plurality of antennas used for the millimeter waves;
- receiving, from the receiver, an antenna switching indicator requesting to switch the transmitting antenna;
- switching the transmitting antenna according to the antenna switching indicator;
- and
- transmitting a signal to the receiver through a switched antenna,
- wherein the antenna switching indicator is received when a Signal-to-Noise Ratio (SNR) of the first signal is lower than the threshold value, and
- the transmitter is applied to a wireless personal area network (WPAN) system based on the millimeter waves.
A method of transmitting and receiving a signal at a receiver connected with a transmitter including a plurality of antennas used for millimeter waves through a wireless channel, the method comprising:
- receiving, from the transmitter, information indicating a reference value for antenna switching;
- receiving, from the transmitter, a first signal through a transmission antenna which is one of the plurality of antennas used for the millimeter waves;
- measuring a Signal-to-Noise Ratio (SNR) of the first signal;
- comparing the measured SNR with the threshold value;
- transmitting, to the transmitter, an antenna switching indicator requesting to switch the transmitting antenna when the measured SNR is lower than the threshold value as a result of the comparison;
- and
- receiving a second signal transmitted from a switched antenna of the transmitter,
- wherein the receiver is applied to a wireless personal area network (WPAN) system based on the millimeter waves.
A transmitter for transmitting a signal in a wireless personal network (WPAN) system based on millimeter waves, the apparatus comprising:
- a controller;
- a transceiver;
- and
- a plurality of antennas used for the millimeter waves,
- wherein the transmitter is configured to:
- transmit, to a receiver using the transceiver, information indicating a threshold value for antenna switching;
- transmit, to the receiver using the transceiver, a first signal through a transmitting antenna which is one of the plurality of antennas;
- receive, from the receiver using the transceiver, an antenna switching indicator requesting to switch the transmitting antenna;
- switch the transmitting antenna according to the antenna switching indicator by using the controller;
- and
- transmit a second signal to the receiver through a switched antenna,
- wherein the antenna switching indicator is received when a Signal-to-Noise Ratio (SNR) of the first signal is lower than the threshold value.
A receiver for receiving a signal from a transmitter including a plurality of antennas used for millimeter waves in a wireless personal network (WPAN) system, the receiver comprising:
- a controller;
- a transceiver;
- and
- wherein the receiver is configured to:
- receive, from a transmitter by using the transceiver, information indicating a threshold value for antenna switching:
- receive, from the transmitter by using the transceiver, a first signal through a transmission antenna which is one of the plurality antennas used for millimeter waves;
- measure, by using the controller, a Signal-to-Noise Ratio (SNR) of the first signal;
- compare, by using the controller, the measured SNR with the threshold value;
- transmit, to the transmitter by using the transceiver, an antenna switching indicator requesting to switch the transmitting antenna when the measured SNR is lower than the threshold value as a result of the comparison;
- and
- receive a second signal transmitted from a switched antenna of the transmitter by using the transceiver,
- wherein the receiver is applied to the WPAN system based on millimeter waves.
Dependencies are inferred from the claim text.