Invention Grant
- Patent Title: Baseband modem implementing communication protocol stack
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Application No.: US14326771Application Date: 2014-07-09
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Publication No.: US09794885B2Publication Date: 2017-10-17
- Inventor: Syed Aon Mujtaba , Moustafa M. Elsayed , Tarik Tabet
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood; Matthew C. Washburn
- Main IPC: H04W52/02
- IPC: H04W52/02 ; H04L25/00 ; H04W72/04 ; H04W76/04

Abstract:
Providing a power-saving mode for control channel monitoring in discontinuous reception (DRX) scenarios. Upon waking from a sleep mode at the conclusion of a DRX off period, a baseband modem may transition to a low-power mode configured to receive and decode only a control channel, such as a physical downlink control channel (PDCCH). If the control channel indicates during a DRX on period that communication traffic will be transmitted to the baseband modem, then the baseband modem may transition to a full-power mode to receive the communication traffic. Otherwise, the baseband modem may transition back to the sleep mode. The low-power mode may be implemented by a dedicated set of hardware configured to draw less power than a full set of hardware configured to implement the high-power mode.
Public/Granted literature
- US20160014697A1 Low Power Based LTE Receiver Architecture Public/Granted day:2016-01-14
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