Method and device for sidelink groupcast communication
AssigneesHyundai Motor Company, Kia Corporation
InventorsSu Han Choi, Gene Back Hahn
Life of this patent
Estimating the term…
Abstract
Disclosed are a method and a device for sidelink groupcast communication. A method for operating a transmitting terminal comprises the steps of: transmitting an SS/PBCH block for sidelink communication in all directions by using a beam sweeping method; receiving, from a plurality of receiving terminals, first feedback information about the SS/PBCH block; and transmitting a sidelink channel in a specific direction by using beams of the transmitting terminal that are determined on the basis of the first feedback information. Therefore, communication system performance can be improved.
Claims20
An operation method of a transmitting terminal in a communication system, the operation method comprising:
- transmitting a synchronization signal/physical broadcast channel (SS/PBCH) block for sidelink communication in an omni-direction by using a beam sweeping scheme;
- receiving first feedback information for the SS/PBCH block from a plurality of receiving terminals;
- and
- transmitting a sidelink channel in a specific direction using beams of the transmitting terminal, wherein the beams are determined based on the first feedback information,
- wherein a transmission area corresponding to the specific direction is narrower than a transmission area corresponding to the omni-direction.
An operation method of a receiving terminal in a communication system, the operation method comprising:
- receiving a synchronization signal/physical broadcast channel (SS/PBCH) block for sidelink communication from a transmitting terminal in a beam sweeping interval;
- selecting a beam index of the transmitting terminal based on quality information measured based on the SS/PBCH block;
- transmitting first feedback information including the beam index to the transmitting terminal;
- and
- receiving a sidelink channel from the transmitting terminal in a transmission interval configured based on the first feedback information,
- wherein the SS/PBCH block is transmitted in an omni-direction of the transmitting terminal within the beam sweeping interval, the sidelink channel is transmitted in a specific direction of the transmitting terminal within the transmission interval, and a transmission area corresponds to the specific direction is narrower than a transmission area corresponding to the omni-direction.
A transmitting terminal performing sidelink communication comprising:
- a processor;
- and
- a memory storing at least one instruction executable by the processor,
- wherein when executed by the processor, the at least one instruction causes the processor to:
- transmit a sidelink signal used for beam measurement in an omni-direction using a beam sweeping scheme;
- receive first feedback information for the sidelink signal from a plurality of receiving terminals;
- and
- transmit a sidelink channel in a specific direction using beams of the transmitting terminal, wherein the beams are determined based on the first feedback information,
- wherein a transmission area corresponding to the specific direction is narrower than a transmission area corresponding to the omni-direction.
Dependencies are inferred from the claim text.