Invention Grant
US09374786B1 System and methods for improving opportunistic envelope tracking in a multi-subscriber identity module (SIM) wireless communication device
有权
用于在多用户识别模块（SIM）无线通信设备中改善机会信封跟踪的系统和方法
- Patent Title: System and methods for improving opportunistic envelope tracking in a multi-subscriber identity module (SIM) wireless communication device
- Patent Title (中): 用于在多用户识别模块（SIM）无线通信设备中改善机会信封跟踪的系统和方法
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Application No.: US14624012Application Date: 2015-02-17
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Publication No.: US09374786B1Publication Date: 2016-06-21
- Inventor: Ankit Maheshwari , Subbarayudu Mutya , Revathi Sundara Raghavan , Qijia Liu , Parthiban Rajendran
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: The Marbury Law Group, PLLC
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04W52/02 ; H04W88/06
Abstract:
Various embodiments enable a multi-SIM multi-active (MSMA) communication device to operate a power amplifier in a power saving envelope tracking mode when a first radio frequency (RF) resource is supporting data transmission to a communication network associated with a first SIM and a second RF resource is supporting a voice call in discontinuous transmission mode. A MSMA communication device processor may monitor the second RF resource supporting the voice call for silence periods, the power amplifier of the first RF resource may operate in a first power-saving mode during silence periods on the voice call, and the power amplifier of the first RF resource may operate in a second power-saving mode when the voice call on second RF resource is not in a period of silence. Periods of silence may be determined by monitoring a protocol stack of the second RF resource for silence descriptor (SID) frames scheduled for transmission.
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