公开(公告)号：US20210242915A1

公开(公告)日：2021-08-05

申请号：US17052678

申请日：2018-06-29

Applicant: Apple Inc.

Inventor： Oner ORHAN ,  Brent ELLIOTT ,  Hosein NIKOPOUR ,  Eren SASOGLU ,  Shilpa TALWAR

IPC: H04B7/06 ,  H04B7/0456 ,  H04B1/44

Abstract: An apparatus, method and computer readable medium for special thermal density reduction by antenna thinning. A system comprises N transmit/receive (TX/RX) chains, where each TX/RX chain comprises an RFFE and each RFFE comprises one or more thermal sensors configured to measure heat in the RFFE. An antenna array coupled to the plurality of TX/RX chains. A codebook that comprises a plurality of code words configured to respond to real-time heat measurements from the thermal sensors in each TX/RX chain is configured to switch off selected TX/RX chains to reduce thermal density at the antenna array while maintaining M RFFEs switched on, where M

公开(公告)号：US20220337297A1

公开(公告)日：2022-10-20

申请号：US17825906

申请日：2022-05-26

Applicant: Apple Inc.

Inventor： Oner ORHAN ,  Brent ELLIOTT ,  Hosein NIKOPOUR ,  Eren SASOGLU ,  Shilpa TALWAR

IPC: H04B7/06 ,  H04B1/44 ,  H04B7/0456

Abstract: An apparatus, method and computer readable medium for special thermal density reduction by antenna thinning. A system comprises N transmit/receive (TX/RX) chains, where each TX/RX chain comprises an RFFE and each RFFE comprises one or more thermal sensors configured to measure heat in the RFFE. An antenna array coupled to the plurality of TX/RX chains. A codebook that comprises a plurality of code words configured to respond to real-time heat measurements from the thermal sensors in each TX/RX chain is configured to switch off selected TX/RX chains to reduce thermal density at the antenna array while maintaining M RFFEs switched on, where M