Method for transmitting and receiving signals in a wireless communication system and a device therefor
AssigneeLG Electronics Inc.
InventorsJaewook Lee, Youngdae Lee, Jongwoo Hong
Life of this patent
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Abstract
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting assistance information to a network/base station when a condition is satisfied. Whether the condition is satisfied or not is determined based on scheduling information from the network/base station and control information from another device.
Claims12
A method of transmitting and receiving signals by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, from a base station (BS), scheduling information indicating one or more first resources to be used by the UE for a first sidelink transmission;
- receiving, from the BS, threshold information including a threshold value;
- receiving, from the BS, downlink control information (DCI) for activating at least one sidelink semi-persistent scheduling (SPS) configuration, wherein the at least one sidelink SPS configuration is included in the scheduling information;
- receiving, from another UE, sidelink control information (SCI) indicating one or more second resources to be used by the another UE for a second sidelink transmission;
- and
- transmitting, to the BS, assistance information on a collision expected between the first sidelink transmission and the second sidelink transmission based on the scheduling information and the SCI when a condition is satisfied,
- wherein the assistance information is transmitted when a number of expected collisions is equal to or larger than the threshold value,
- wherein the number of expected collisions is counted per an activated one of the at least one sidelink SPS configuration, and
- wherein the assistance information includes an index of a sidelink SPS configuration in which the number of expected collisions is equal to or larger than the threshold value.
A user equipment (UE), which transmits and receives signals in a wireless communication system, the UE comprising:
- a radio frequency (RF) unit;
- and
- a processor,
- wherein the processor is configured to:
- receive, from a base station (BS), scheduling information indicating one or more first resources to be used by the UE for a first sidelink transmission,
- receive, from the BS, threshold information including a threshold value,
- receive, from the BS, downlink control information (DCI) for activating at least one sidelink semi-persistent scheduling (SPS) configuration, wherein the at least one sidelink SPS configuration is included in the scheduling information,
- receive, from another UE, sidelink control information (SCI) indicating one or more second resources to be used by the another UE for a second sidelink transmission, and
- transmit, to the BS, assistance information on collision expected between the first sidelink transmission and the second sidelink transmission based on the scheduling information and the SCI when a condition is satisfied,
- wherein the assistance information is transmitted when a number of expected collisions is equal to or larger than the threshold value,
- wherein the number of expected collisions is counted per an activated one of the at least one SPS configuration, and
- wherein the assistance information includes an index of a sidelink SPS configuration in which the number of expected collisions is equal to or larger than the threshold value.
Dependencies are inferred from the claim text.