Invention Grant
- Patent Title: Hand-held cellular telephone with power management features
- Patent Title (中): 具有电源管理功能的手持蜂窝电话
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Application No.: US850913Application Date: 1997-05-02
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Publication No.: US6029074APublication Date: 2000-02-22
- Inventor: David Rand Irvin
- Applicant: David Rand Irvin
- Applicant Address: NC Research Triangle Park
- Assignee: Ericsson, Inc.
- Current Assignee: Ericsson, Inc.
- Current Assignee Address: NC Research Triangle Park
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04B1/04 ; H04B7/005 ; H04B7/26 ; H04M1/73 ; H04W52/00 ; H04W52/02 ; H04W52/36 ; H04B1/40
Abstract:
A mobile terminal includes power control logic which limits the maximum transmit power of the mobile radio telephone to conserve battery power when it is operated in a hand-held mode. The mobile radio telephone includes power control logic which sets the transmit power in response to power control codes received from a base station. The power control codes transmitted from the base station correspond to designated power levels. A signal is generated to indicate whether the mobile radio telephone is operated in a hand-held mode. When the mobile radio telephone is operated in a hand-held mode, the power control logic sets the power level at a maximum hand-held power level which is less than the maximum transmit power level.
Public/Granted literature
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