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US 10,382,238 B2Granted
Uplink signal transmission in a wireless device
AssigneeOfinno, LLC
InventorEsmael Hejazi Dinan
Life of this patent
Estimating the term…
Abstract
A wireless device receives a message comprising at least one information element (IE) associated with a timing advance group (TAG). The at least one IE at least indicates one of a value of the time alignment timer (TAT) IE or a TAT of the TAG is disabled. The wireless device transmits uplink signals on a secondary cell in the TAG only after receiving a timing advance command (TAC) if the IE indicates the value of the TAT IE. The wireless device transmits uplink signals on the secondary cell regardless of receiving the TAC if the IE indicates that the TAT is disabled.
Claims20
A method comprising:
- receiving, by a wireless device, at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of timing advance groups (TAGs) comprising:
- a primary TAG comprising a primary cell;
- a secondary TAG comprising a secondary cell, wherein a time alignment timer (TAT) information element (IE) is associated with the secondary TAG and a value of the TAT IE is selected from a finite set of predetermined values comprising:
- a first value;
- and a second value;
- receiving an activation command indicating activation of the secondary cell in the secondary TAG;
- determining that the value of the TAT IE indicates the second value;
- and
- based on the determining, transmitting uplink data via the secondary cell in response to the activation of the secondary cell and before receiving an initial timing advance command (TAC) for the secondary TAG.
6 more elements
A method comprising:
- receiving, by a wireless device, at least one message comprising at least one information element (IE) associated with a secondary timing advance group (TAG), the at least one IE associated with the secondary TAG indicating at least one of:
- a value of a time alignment timer (TAT) IE;
- or a TAT of the secondary TAG is disabled;
- receiving an activation command indicating activation of a secondary cell in the secondary TAG;
- determining that the at least one IE associated with the secondary TAG indicates the TAT of the secondary TAG is disabled;
- and
- based on the determining, transmitting uplink data via the secondary cell in response to the activation of the secondary cell and before receiving an initial timing advance command (TAC) for the secondary TAG.
4 more elements
Dependencies are inferred from the claim text.