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US 2025/0133507 A1Published application
Cell Timing in a Wireless Device and Base Station
AssigneeComcast Cable Communications, LLC
InventorEsmael Hejazi Dinan
Life of this patent
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Abstract
Methods, apparatuses, and systems are described for wireless communications. A transmission timing difference between a first cell group and a second cell group may be determined. If the transmission timing difference exceeds a threshold, one or more devices may stop transmitting uplink signals via one or more secondary cells and/or may not apply the timing adjustment for a cell group.
Claims24
A method comprising:
- performing, by a wireless device and using a first timing advance, a first uplink transmission via one or more secondary cells associated with a first cell group;
- based on a transmission timing difference between the first cell group and a second cell group exceeding a threshold, determining that a time alignment timer, associated with the one or more secondary cells, is expired;
- and
- after the determining that the time alignment timer is expired, performing, using a second timing advance, a second uplink transmission via the one or more secondary cells.
1 more element
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause a wireless device to:
- perform, using a first timing advance, a first uplink transmission via one or more secondary cells associated with a first cell group;
- based on a transmission timing difference between the first cell group and a second cell group exceeding a threshold, determine that a time alignment timer, associated with the one or more secondary cells, is expired;
- and
- after determining that the time alignment timer is expired, perform, using a second timing advance, a second uplink transmission via the one or more secondary cells.
4 more elements
A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
- perform, using a first timing advance, a first uplink transmission via one or more secondary cells associated with a first cell group;
- based on a transmission timing difference between the first cell group and a second cell group exceeding a threshold, determine that a time alignment timer, associated with the one or more secondary cells, is expired;
- and
- after determining that the time alignment timer is expired, perform, using a second timing advance, a second uplink transmission via the one or more secondary cells.
1 more element
Dependencies are inferred from the claim text.