Back to results
US 11,147,034 B2Granted
Carrier grouping in multicarrier communications
AssigneeComcast Cable Communications, LLC
InventorEsmael Hejazi Dinan
Life of this patent
Estimating the term…
Abstract
Methods, apparatuses, and systems for wireless communications are described. Uplink signals may be time aligned based on different synchronization signals as a timing reference for different carrier groups. A base station may send, to a wireless device, a time alignment command comprising: an indication of a carrier group index, and a time adjustment value. Based on the time alignment command, the wireless device may send second uplink signals.
Claims59
A method comprising:
- transmitting, by a base station, at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- receiving, from a wireless device via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- transmitting, to the wireless device, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- receiving, via the secondary carrier group and based on the time alignment command, the second uplink signals.
5 more elements
A method comprising:
- receiving, by a wireless device, at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- transmitting, to a base station via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- receiving, from the base station, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- transmitting, via the secondary carrier group and based on the time alignment command, the second uplink signals.
5 more elements
A base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the base station to:
- transmit, to a wireless device, at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- receive, from the wireless device via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- transmit, to the wireless device, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- receive, from the wireless device via the secondary carrier group and based on the time alignment command, the second uplink signals.
8 more elements
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
- receive, from a base station, at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- transmit, to the base station via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- receive, from the base station, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- transmit, to the base station via the secondary carrier group and based on the time alignment command, the second uplink signals.
8 more elements
A non-transitory computer-readable medium storing instructions that, when executed, configure a base station to:
- transmit at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- receive, from a wireless device via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- transmit, to the wireless device, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- receive, via the secondary carrier group and based on the time alignment command, the second uplink signals.
5 more elements
A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
- receive at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- transmit, to a base station via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- receive, from the base station, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- transmit, via the secondary carrier group and based on the time alignment command, the second uplink signals.
5 more elements
A system comprising:
- a wireless device;
- and
- a base station,
- wherein the wireless device comprises:
- one or more processors;
- and
- memory storing first instructions that, when executed by the one or more processors, configure the wireless device to:
- receive, from the base station, at least one radio resource control message comprising a carrier group index indicating that a carrier is associated with a secondary carrier group of a plurality of carrier groups;
- transmit, to the base station via the secondary carrier group and via a primary carrier group of the plurality of carrier groups, first uplink signals that are time aligned based on different synchronization signals as a timing reference for different carrier groups of the plurality of carrier groups;
- receive, from the base station, a time alignment command comprising:
- an indication of the carrier group index;
- and
- a time adjustment value for a timing adjustment of second uplink signals associated with the secondary carrier group;
- and
- transmit, to the base station via the secondary carrier group and based on the time alignment command, the second uplink signals, and
- wherein the base station comprises:
- one or more processors;
- and
- memory storing second instructions that, when executed by the one or more processors of the base station, configure the base station to:
- transmit the at least one radio resource control message;
- receive the first uplink signals;
- transmit the time alignment command;
- and
- receive the second uplink signals.
21 more elements
Dependencies are inferred from the claim text.