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US 2019/0059090 A1Published application
Wireless Multicarrier Random Access Process
AssigneeComcast Cable Communications, LLC
InventorEsmael Hejazi Dinan
Life of this patent
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Abstract
Systems, apparatuses, and methods are described for wireless communications. A wireless device may transmit a buffer status report. Based on the buffer status report, the wireless device may receive a control command to use radio resources of a secondary cell. The wireless device may transmit a random access preamble via the secondary cell.
Claims20
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:
- transmit, to a base station, a buffer status report;
- based on the buffer status report, receive a control command to use radio resources of a secondary cell for transmission of a random access preamble, wherein uplink timing associated with the secondary cell is different from uplink timing associated with activated cells of the wireless device;
- transmit, to the base station via the secondary cell, the random access preamble, wherein transmission timing associated with the random access preamble is based on a first synchronization signal transmitted by the base station via a secondary cell group comprising the secondary cell;
- receive at least one control packet comprising resource allocation information for transmission via the secondary cell;
- and
- transmit, based on the resource allocation information and via the secondary cell, at least one data packet.
6 more elements
A method comprising:
- transmitting, by a wireless device to a base station, a buffer status report;
- based on the buffer status report, receiving a control command to use radio resources of a secondary cell for transmission of a random access preamble, wherein uplink timing associated with the secondary cell is different from uplink timing associated with activated cells of the wireless device;
- transmitting, to the base station via the secondary cell, the random access preamble, wherein transmission timing associated with the random access preamble is based on a first synchronization signal transmitted by the base station via a secondary cell group comprising the secondary cell;
- receiving at least one control packet comprising resource allocation information for transmission via the secondary cell;
- and
- transmitting, based on the resource allocation information and via the secondary cell, at least one data packet.
3 more elements
A computer-readable medium storing instructions that, when executed, cause:
- transmitting, to a base station, a buffer status report;
- based on the buffer status report, receiving a control command to use radio resources of a secondary cell for transmission of a random access preamble, wherein uplink timing associated with the secondary cell is different from uplink timing associated with activated cells of a wireless device;
- transmitting, to the base station via the secondary cell, the random access preamble, wherein transmission timing associated with the random access preamble is based on a first synchronization signal transmitted by the base station via a secondary cell group comprising the secondary cell;
- receiving at least one control packet comprising resource allocation information for transmission via the secondary cell;
- and
- transmitting, based on the resource allocation information and via the secondary cell, at least one data packet.
3 more elements
Dependencies are inferred from the claim text.