Carrier configuration in wireless networks
First Claim
Patent Images
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 first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein;
transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and
transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group;
determine to perform a handover of the wireless device; and
transmit a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information.
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Accused Products
Abstract
Methods and apparatuses are described for wireless communications. Cells may be grouped into a plurality of cell groups. A handover of a wireless device may be performed, and one or more configuration parameters of a cell associated with the wireless device may be maintained.
376 Citations
70 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 first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group; determine to perform a handover of the wireless device; and transmit a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. 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 first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group; receive a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information; and perform, based on the second control message, a handover. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system comprising:
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a wireless device; and a base station comprising; one or more processors; and memory storing instructions that, when executed by the one or more processors of the base station, cause the base station to; transmit at least one first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group; and transmit a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information; and wherein the wireless device comprises; one or more processors; and memory storing instructions that, when executed by the one or more processors of the wireless device, cause the wireless device to; receive the at least one first control message; receive the second control message; and perform, based on the second control message, a handover. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method comprising:
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transmitting, by a base station to a wireless device, at least one first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group; determining to perform a handover of the wireless device; and transmitting a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method comprising:
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receiving, by a wireless device from a base station, at least one first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmission in the second cell group is based on a second cell of the second cell group; receiving a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information; and performing, based on the second control message, a handover. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A method comprising:
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transmitting, by a base station to a wireless device, at least one first control message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups comprising a first cell group and a second cell group, wherein; transmission timing associated with uplink transmissions in the first cell group is based on a first cell of the first cell group; and transmission timing associated with uplink transmissions in the second cell group is based on a second cell of the second cell group; transmitting, by the base station to the wireless device, a second control message configured to, for a cell associated with the wireless device, cause a cell grouping modification from the first cell group to the second cell group, wherein one or more configuration parameters of the cell are maintained during the cell grouping modification, and wherein the second control message comprises mobility control information; receiving, by the wireless device, the at least one first control message; receiving, by the wireless device, the second control message; and performing, based on the second control message, a handover of the wireless device. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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Specification