Random access mechanism for a wireless device and base station
First Claim
Patent Images
1. 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 at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups, wherein the plurality of cells comprises a plurality of downlink-uplink cells and at least one downlink-only cell, wherein;
each cell group of the plurality of cell groups comprises at least one of the plurality of downlink-uplink cells; and
each of the at least one downlink-only cell is assigned to a cell group comprising at least one of the plurality of downlink-uplink cells;
receive a timing advance command comprising a time adjustment value and an index of a first cell group of the plurality of cell groups; and
apply the timing advance command to uplink transmission timing of at least one downlink-uplink cell, of the plurality of downlink-uplink cells, associated with the first cell group.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatuses are described for wireless communications. Cells may be grouped into a plurality of cell groups. A wireless device may receive configuration parameters for the cells.
-
Citations
25 Claims
-
1. 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 at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups, wherein the plurality of cells comprises a plurality of downlink-uplink cells and at least one downlink-only cell, wherein; each cell group of the plurality of cell groups comprises at least one of the plurality of downlink-uplink cells; and each of the at least one downlink-only cell is assigned to a cell group comprising at least one of the plurality of downlink-uplink cells; receive a timing advance command comprising a time adjustment value and an index of a first cell group of the plurality of cell groups; and apply the timing advance command to uplink transmission timing of at least one downlink-uplink cell, of the plurality of downlink-uplink cells, associated with the first cell group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. 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 at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of cell groups, wherein the plurality of cells comprise a plurality of downlink-uplink cells and at least one downlink-only cell, wherein; each cell group of the plurality of cell groups comprises at least one of the plurality of downlink-uplink cells; and each of the at least one downlink-only cell is assigned to a cell group comprising at least one of the plurality of downlink-uplink cells; and transmit a timing advance command comprising a time adjustment value and an index of a first cell group of the plurality of cell groups. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A system comprising:
-
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 message comprising configuration parameters of a plurality of cells, grouped into a plurality of cell groups, wherein the plurality of cells comprise a plurality of downlink-uplink cells and at least one downlink-only cell, wherein; each cell group of the plurality of cell groups comprises at least one of the plurality of downlink-uplink cells; and each of the at least one downlink-only cell is assigned to a cell group comprising at least one of the plurality of downlink-uplink cells; and transmit a timing advance command comprising a time adjustment value and an index of a first cell group of the plurality of cell groups; and a wireless device comprising; 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; apply the timing advance command to uplink transmission timing of at least one downlink-uplink cell, of the plurality of downlink-uplink cells, associated with the first cell group. - View Dependent Claims (22, 23, 24, 25)
-
Specification