Default condition for unified TCI state
AssigneeQUALCOMM Incorporated
InventorsTianyang Bai, Yan Zhou, Tao Luo, Junyi Li
Life of this patent
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Abstract
Apparatus, methods, and computer program products for wireless communication are provided. An example method may include receiving downlink control information (DCI) indicating at least a first transmission configuration indicator (TCI) state from a network entity at a first time. The example method may further include applying a second TCI state or a third TCI state to receive a scheduled downlink transmission based on a difference between the first time and a second time associated with the scheduled downlink transmission, where the difference is smaller than a threshold and based on a default TCI state condition.
Claims27
An apparatus for wireless communication at a user equipment (UE), comprising:
- memory;
- and
- at least one processor coupled to the memory, wherein the at least one processor is configured to:
- receive downlink control information (DCI) indicating a first TCI state from a network entity at a first time;
- and
- apply a second TCI state or the first TCI state to receive a scheduled downlink transmission based on a difference between the first time and a second time associated with the scheduled downlink transmission and based on a physical cell identifier (PCI) associated with the first TCI state being different from a current serving cell associated with the UE, wherein whether to apply the first TCI state or the second TCI state is based on whether the difference is smaller than a threshold and based on a default TCI state condition, wherein the second TCI state is associated with a lowest control resource set (CORESET) identifier (ID) in a last monitored slot.
An apparatus for wireless communication at a network entity, comprising:
- memory;
- and
- at least one processor coupled to the memory, wherein the at least one processor is configured to:
- transmit a medium access control (MAC) control element (MAC-CE) activating a set of transmission configuration indicator (TCI) states before transmission of a downlink control information (DCI) indicating a first TCI state;
- transmit the DCI indicating the first TCI state for a user equipment (UE) at a first time;
- and
- apply a second TCI state or a third TCI state to transmit a scheduled downlink transmission based on a difference between the first time and a second time associated with the scheduled downlink transmission and based on a physical cell identifier (PCI) associated with the first TCI state being different from a current serving cell associated with the UE, wherein whether to apply the first TCI state or the second TCI state is based on whether the difference is smaller than a threshold and based on a default TCI state condition, and wherein the second TCI state is associated with a lowest control resource set (CORESET) identifier (ID) in a last monitored slot.
A method of wireless communication at a user equipment (UE), comprising:
- receiving a medium access control (MAC) control element (MAC-CE) activating a set of transmission configuration indicator (TCI) states before reception of a downlink control information (DCI) indicating a first TCI state;
- receiving the first TCI state from a network entity at a first time;
- and
- applying a second TCI state or the first TCI state to receive a scheduled downlink transmission based on a difference between the first time and a second time associated with the scheduled downlink transmission and based on a physical cell identifier (PCI) associated with the first TCI state being different from a current serving cell associated with the UE, wherein whether to apply the first TCI state or the second TCI state is based on whether the difference is smaller than a threshold and based on a default TCI state condition, and wherein the second TCI state is associated with a lowest control resource set (CORESET) identifier (ID) in a last monitored slot.
A method of wireless communication at a network entity, comprising:
- transmitting a medium access control (MAC) control element (MAC-CE) activating a set of transmission configuration indicator (TCI) states before transmission of a downlink control information (DCI) indicating a first TCI state;
- transmitting the first TCI state for a user equipment (UE) at a first time;
- and
- applying a second TCI state or a third TCI state to transmit a scheduled downlink transmission based on a difference between the first time and a second time associated with the scheduled downlink transmission and based on a physical cell identifier (PCI) associated with the first TCI state being different from a current serving cell associated with the UE, wherein whether to apply the first TCI state or the second TCI state is based on whether the difference is smaller than a threshold and based on a default TCI state condition, and wherein the second TCI state is associated with a lowest control resource set (CORESET) identifier (ID) in a last monitored slot.
Dependencies are inferred from the claim text.