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US 11,777,696 B2Granted
Serving cell activation in a wireless communication system
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJoakim Axmon, Muhammad Ali Kazmi, Christopher Callender
Life of this patent
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Abstract
A wireless device is configured to receive an activation command that commands the wireless device to activate a serving cell. The wireless device is configured to activate the serving cell within a maximum delay since receiving the activation command. The maximum delay depends on whether there is at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated.
Claims18
A method performed by a wireless device, the method comprising:
- receiving an activation command that commands the wireless device to activate a serving cell;
- determining whether there is at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- activating the serving cell within a maximum delay since receiving the activation command, the maximum delay depending on whether there is the at least one other serving cell already activated for the wireless device in a same frequency band as that in which the serving cell is to be activated;
- selecting based on whether there is the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, one of multiple different activation procedures for activating the serving cell, at least some of the multiple different activation procedures incur different delays in cell activation, the selecting being further based on whether the wireless device has to use a same receive beam to receive simultaneously from the serving cell and the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- and
- based on there being the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, the selecting including selecting an activation procedure in which the wireless device refrains from conducting a receive beam sweep to determine a receive beam on which to receive from the serving cell to be activated.
3 more elements
A wireless device comprising:
- communication circuitry;
- and processing circuitry configured to:
- receive an activation command that commands the wireless device to activate a serving cell;
- determine whether there is at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- activate the serving cell within a maximum delay since receiving the activation command, the maximum delay depending on whether there is the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- select, based on whether there is the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, one of multiple different activation procedures for activating the serving cell, at least some of the multiple different activation procedures incur different delays in cell activation, and further based on whether the wireless device has to use a same receive beam to receive simultaneously from the serving cell and the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- and
- based on there being the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, the selection including selecting an activation procedure in which the wireless device refrains from conducting a receive beam sweep to determine a receive beam on which to receive from the serving cell to be activated.
5 more elements
A non-transitory computer-readable storage medium on which is stored instructions that, when executed by at least one processor of a wireless device, causes the wireless device to:
- receive an activation command that commands the wireless device to activate a serving cell;
- determine whether there is at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- activate the serving cell within a maximum delay since receiving the activation command, wherein the maximum delay depends on whether there is the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- and
- select, based on whether there is the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, one of multiple different activation procedures for activating the serving cell, at least some of the multiple different activation procedures incur different delays in cell activation, and further based on whether the wireless device has to use a same receive beam to receive simultaneously from the serving cell and the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated;
- and
- based on there being the at least one other serving cell already activated for the wireless device in the same frequency band as that in which the serving cell is to be activated, the selection including selecting an activation procedure in which the wireless device refrains from conducting a receive beam sweep to determine a receive beam on which to receive from the serving cell to be activated.
4 more elements
Dependencies are inferred from the claim text.