Configuration of multiple timing advance groups in wireless communication devices
First Claim
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1. 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 control message comprising;
first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and
a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells;
receive, from the wireless device, an indication of radio quality of the plurality of secondary cells;
select, based on the indication of radio quality, a random access channel associated with a secondary cell of the plurality of secondary cells;
transmit, to the wireless device, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and
receive, from the wireless device, the random access preamble.
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Abstract
Methods, apparatuses, and systems are described for wireless communications. Cells may be grouped into a plurality of cell groups. Control message(s) may be transmitted to a wireless device for the wireless device to transmit a preamble via a secondary cell.
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Citations
52 Claims
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1. A base station comprising:
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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 control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; receive, from the wireless device, an indication of radio quality of the plurality of secondary cells; select, based on the indication of radio quality, a random access channel associated with a secondary cell of the plurality of secondary cells; transmit, to the wireless device, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and receive, from the wireless device, the random access preamble. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless device comprising:
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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 control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; and transmit, to the base station, an indication of radio quality of the plurality of secondary cells; receive, from the base station, an indication of a random access channel associated with a secondary cell of the plurality of secondary cells; receive, from the base station, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and transmit, to the base station, the random access preamble. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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transmitting, by a base station and to a wireless device, at least one control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; receiving, from the wireless device, an indication of radio quality of the plurality of secondary cells; selecting, based on the indication of radio quality, a random access channel associated with a secondary cell of the plurality of secondary cells; transmitting, to the wireless device, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and receiving, from the wireless device, the random access preamble. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A method comprising:
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receiving, by a wireless device and from a base station, at least one control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; transmitting, to the base station, an indication of radio quality of the plurality of secondary cells; receiving, from the base station, an indication of a random access channel associated with a secondary cell of the plurality of secondary cells; receiving, from the base station, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and transmitting, to the base station, the random access preamble. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A system comprising:
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a base station and a wireless device; wherein the base station comprises; first one or more processors; and first memory storing first instructions that, when executed by the first one or more processors, cause the base station to; transmit, to the wireless device, at least one control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; select, based on an indication of radio quality of the plurality of secondary cells, a random access channel associated with a secondary cell of the plurality of secondary cells; and transmit, to the wireless device, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and wherein the wireless device comprises; second one or more processors; and second memory storing second instructions that, when executed by the second one or more processors, cause the wireless device to; transmit, to the base station, the indication of radio quality of the plurality of secondary cells; and transmit, to the base station, the first random access preamble. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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44. A method comprising:
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transmitting, by a base station and to a wireless device, at least one control message comprising; first configuration parameters of a plurality of cells, wherein the plurality of cells comprises a plurality of secondary cells, the plurality of cells are grouped into a plurality of cell groups, and the plurality of cell groups comprises a primary cell group and a secondary cell group; and a plurality of second parameters for configuration of a random access channel of each of the plurality of secondary cells; transmitting, by the wireless device and to the base station, an indication of radio quality of the plurality of secondary cells; selecting, by the base station and based on the indication of radio quality of the plurality of secondary cells, a random access channel associated with a secondary cell of the plurality of secondary cells; transmitting, by the base station and to the wireless device, a control command to cause transmission of a random access preamble via the secondary cell of the plurality of secondary cells; and transmitting, by the wireless device and to the base station, the random access preamble. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52)
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Specification