US 12,192,994 B2Granted

Collision handling for component carrier switching

AssigneeQUALCOMM Incorporated

InventorsPeter Gaal, Yiqing Cao, Chenxi Hao, Yi Huang, Bo Chen

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Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may group, into a common slot, a first plurality of consecutive uplink slots included in a first component carrier and a second plurality of consecutive uplink slots included in a second component carrier. The UE may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. The UE may transmit on the first component carrier or on the second component carrier in the common slot or determine whether to switch a transmit chain based at least in part on whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink slots or the second plurality of consecutive uplink slots. Numerous other aspects are provided.

Claims35

Dependent claims

A method of wireless communication performed by a user equipment (UE), comprising:

grouping, into a common slot, a plurality of first uplink slots included in a first component carrier and a plurality of second uplink slots included in a second component carrier,
wherein at least a subset of the plurality of first uplink slots and at least a subset of the first plurality of second uplink slots overlap;
and
transmitting, based at least in part on an uplink transmission that is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, on the first component carrier or on the second component carrier in the common slot, or
switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot prior to a transmission and based at least in part on receiving scheduling signaling, or
refraining from switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot based at least in part on not receiving scheduling signaling.

3 more elements

A user equipment (UE), comprising:

one or more transceivers;
one or more memories comprising instructions;
and
one or more processors configured to execute the instructions and cause the UE to:
group, into a common slot, a plurality of first uplink slots included in a first component carrier and a plurality of second uplink slots included in a second component carrier,
wherein at least a subset of the plurality of first uplink slots and at least a subset of the plurality of second first uplink slots overlap;
and
transmit, via the one or more transceivers, based at least in part on an uplink transmission that is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, on the first component carrier or on the second component carrier in the common slot, or
switch, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot prior to a transmission and based on receiving scheduling signaling, or
refrain from switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot based on not receiving scheduling signaling.

7 more elements

A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
group, into a common slot, a plurality of first uplink slots included in a first component carrier and a plurality of second uplink slots included in a second component carrier,
wherein at least a subset of the plurality of first uplink slots and at least a subset of the plurality of second first uplink slots overlap;
and
transmit, based at least in part on an uplink transmission that is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, on the first component carrier or on the second component carrier in the common slot, or
switch, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot prior to a transmission and based on receiving scheduling signaling, or
refrain from switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot based on not receiving scheduling signaling.

4 more elements

A user equipment (UE) for wireless communication, comprising:

means for grouping, into a common slot, a plurality of first uplink slots included in a first component carrier and a plurality of second uplink slots included in a second component carrier,
wherein at least a subset of the plurality of first uplink slots and at least a subset of the plurality of second first uplink slots overlap;
and
means for transmitting, based at least in part on an uplink transmission that is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, on the first component carrier or on the second component carrier in the common slot, or
means for switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot prior to a transmission and based at least in part on receiving scheduling signaling, or
means for refraining from switching, when no uplink transmission is scheduled in at least one of the plurality of first uplink slots or the plurality of second uplink slots, a transmit chain of the UE between the first component carrier and the second component carrier in the common slot based at least in part on not receiving scheduling signaling.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/755,575Filed 11 Feb 2020 · us provisional application
Priority: 21 Nov 2019
Published: US 2022/0386335 A11 Dec 2022
Granted: 7 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 72/1268
Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows: of uplink data flows
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04W 72/569
Of the information or information source or recipient: of the traffic information
H04W 74/0825
Using carrier sensing, e.g. carrier sense multiple access [CSMA]: with collision detection

Family

Application62/938,797Us provisional application · filed 21 Nov 2019
US 2022/0386335 A1Pre-grant publication · published 1 Dec 2022
US 12,192,994 B2This patent

From the US filing history. Foreign family members aren’t listed.

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