Wireless device handover signaling
First Claim
Patent Images
1. A method comprising:
- transmitting, by a first base station and to a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups;
receiving, from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group;
transmitting, to the wireless device, a third message comprising the configuration parameters; and
transmitting, by the wireless device and to the second base station, uplink signals via the first plurality of cell groups, wherein;
uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and
uplink transmission timing associated with the second cell group is based on a second cell of the second cell group.
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Abstract
A first base station transmits to a second base station a first message. The first message comprises at least one parameter indicating the wireless device supports configuration of a plurality of cell groups. The first base station receives from the second base station a second message comprising first configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group. The first base station transmits, to the wireless device, a third message comprising the first configuration parameters.
360 Citations
60 Claims
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1. A method comprising:
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transmitting, by a first base station and to a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups; receiving, from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; transmitting, to the wireless device, a third message comprising the configuration parameters; and transmitting, by the wireless device and to the second base station, uplink signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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transmitting, by a first base station and to a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups; receiving, by the first base station and from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; receiving, by the wireless device and from the first base station, a third message comprising the configuration parameters; and transmitting, by the wireless device and to the second base station, uplink carrier signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method comprising:
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transmitting, by a first base station and to a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups; receiving, from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; transmitting, to the wireless device, a third message comprising the configuration parameters; and transmitting, by the wireless device, uplink carrier signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method comprising:
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transmitting, by a first base station and to a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups; receiving, by the first base station and from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; receiving, by the wireless device and from the first base station, a third message comprising the configuration parameters; and transmitting, by the wireless device, uplink carrier signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A system comprising:
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a wireless device comprising one or more processors and memory; and a first base station comprising; one or more processors; and memory storing instructions that, when executed by the one or more processors of the first base station, cause the first base station to; transmit, to a second base station, a first message comprising at least one parameter indicating that the wireless device supports configuration of a plurality of cell groups; receive, from the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; and transmit, to the wireless device, a third message comprising the configuration parameters; and wherein the memory of the wireless device stores instructions that, when executed by the one or more processors of the wireless device, cause the wireless device to; transmit uplink carrier signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A method comprising:
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receiving, from a first base station and by a second base station, a first message comprising at least one parameter indicating that a wireless device supports configuration of a plurality of cell groups; transmitting, by the second base station, a second message comprising configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group; receiving, by the wireless device, a third message comprising the configuration parameters; and transmitting, by the wireless device, uplink carrier signals via the first plurality of cell groups, wherein; uplink transmission timing associated with the first cell group is based on a first cell of the first cell group; and uplink transmission timing associated with the second cell group is based on a second cell of the second cell group. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification