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US 11,889,359 B2Granted
Full duplex beam failure detection and uplink resources determination for transmitting recovery request
AssigneeQUALCOMM Incorporated
InventorsQian Zhang, Yan Zhou, Tao Luo
Life of this patent
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Abstract
When a beam failure is detected, appropriate actions may be taken to recover the connection. A beam failure recovery request may be sent by a user equipment (UE) apparatus to initiate the recovery of the connection. The UE detects a beam failure for at least one active downlink and uplink beam pair for full duplex communication with a secondary cell (SCell). The UE transmits a beam failure recovery request (BFRQ) for the SCell to a base station using an uplink resource of the SCell or a primary cell (PCell) based on a layer 1 signal to interference and noise ratio (L1-SINR) measurement for the at least one active downlink and uplink beam pair of the SCell.
Claims30
An apparatus for wireless communication at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to:
- detect a beam failure for at least one active downlink and uplink beam pair for full duplex communication with a secondary cell (SCell);
- and
- transmit a beam failure recovery request (BFRQ) for the SCell to a base station using an uplink resource of the SCell or a primary cell (PCell) based on a layer 1 signal to interference and noise ratio (L1-SINR) measurement for the at least one active downlink and uplink beam pair of the SCell,
- wherein the uplink resource is of the SCell if the L1-SINR measurement for the at least one active downlink and uplink beam pair is above a quality threshold,
- wherein the BFRQ is in at least one of:
- uplink control information (UCI) of the SCell, or a physical uplink shared channel (PUSCH) through a medium access control-control element (MAC-CE) of the SCell;
- and
- transmit, to the base station, a scheduling request via a different cell for the uplink resource to send the BFRQ for the SCell after one or more retransmissions of the BFRQ to the base station via the UCI or the PUSCH through the MAC-CE of the SCell.
8 more elements
A method of wireless communication at a user equipment (UE), comprising:
- detecting a beam failure for at least one active downlink and uplink beam pair for full duplex communication with a secondary cell (SCell);
- and
- transmitting a beam failure recovery request (BFRQ) for the SCell to a base station using an uplink resource of the SCell or a primary cell (PCell) based on a layer 1 signal to interference and noise ratio (L1-SINR) measurement for the at least one active downlink and uplink beam pair of the SCell,
- wherein the uplink resource is of the SCell if the L1-SINR measurement for the at least one active downlink and uplink beam pair is above a quality threshold,
- wherein the BFRQ is in at least one of:
- uplink control information (UCI) of the SCell, or a physical uplink shared channel (PUSCH) through a medium access control-control element (MAC-CE) of the SCell;
- and
- transmitting, to the base station, a scheduling request via a different cell for the uplink resource to send the BFRQ for the SCell after one or more retransmissions of the BFRQ to the base station via the UCI or the PUSCH through the MAC-CE of the SCell.
5 more elements
An apparatus for wireless communication at a base station, comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to:
- serve as a secondary cell (SCell) for full duplex communication with a user equipment (UE) configured with at least one active downlink and uplink beam pair;
- and
- receive, from the UE, a beam failure recovery request (BFRQ) for the SCell using an uplink resource of the SCell or a primary cell (PCell) based on a layer 1 signal to interference and noise ratio (L1-SINR) measurement for the at least one active downlink and uplink beam pair
- wherein the beam failure recovery request (BFRQ) indicates a beam failure for the at least one active downlink and uplink beam pair
- wherein the uplink resource is of the SCell if the L1-SINR measurement for the at least one active downlink and uplink beam pair is above a quality threshold,
- wherein the BFRQ is in at least one of:
- uplink control information (UCI) of the SCell, or a physical uplink shared channel (PUSCH) through a medium access control-control element (MAC-CE) of the SCell;
- and
- receive, from the UE, a scheduling request via a different cell for the uplink resource to send the BFRQ for the SCell after one or more retransmissions of the BFRQ to the base station via the UCI or the PUSCH through the MAC-CE of the SCell.
9 more elements
A method of wireless communication at a base station, comprising:
- serving as a secondary cell (SCell) for full duplex communication with a user equipment (UE) configured with at least one active downlink and uplink beam pair;
- and
- receiving, from the UE, a beam failure recovery request (BFRQ) for the SCell using an uplink resource of the SCell or a primary cell (PCell) based on a layer 1 signal to interference and noise ratio (L1-SINR) measurement for the at least one active downlink and uplink beam pair
- wherein the beam failure recovery request (BFRQ) indicates a beam failure for the at least one active downlink and uplink beam pair
- wherein the uplink resource is of the SCell if the L1-SINR measurement for the at least one active downlink and uplink beam pair is above a quality threshold,
- wherein the BFRQ is in at least one of:
- uplink control information (UCI) of the SCell, or a physical uplink shared channel (PUSCH) through a medium access control-control element (MAC-CE) of the SCell, and
- receiving, from the UE, a scheduling request via a different cell for the uplink resource to send the BFRQ for the SCell after one or more retransmissions of the BFRQ to the base station via the UCI or the PUSCH through the MAC-CE of the SCell.
5 more elements
Dependencies are inferred from the claim text.