Apple Inc.

Ali Moaz

Tim Schoenauer

Rahmi Hezar

Helena Deirdre O'Shea

Ram S Kanumalli

Dmitry Cherniavsky

Ismael Gutierrez

Mahima Mehta

Helena Deidre O'Shea

Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.

Dynamic configuration of spur cancellation

Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

Configuration of aggressor integrated circuit to prevent spur interference at victim integrated circuit

Identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

A communication device includes a controller configured to identify a plurality of carriers for carrier aggregation; and an estimation processor configured to determine, for a first device processing resource of the communication device, throughput gain values that estimate an increase in throughput from using the device processing resource with the plurality of carriers. The controller further is configured to determine efficiency metrics for the first device processing resource based on the throughput gain values and power penalty values that estimate a power penalty from using the first device processing resource with the plurality of carriers, and select, based on the efficiency metrics, a first carrier of the plurality of carriers to which to assign the first device processing resource.

Growing community of inventors

Nuremberg, Germany

Ali Moaz