AVOIDING TRANSMIT POWER LIMITATIONS DUE TO SPECIFIC ABSORPTION RATE CONSTRAINTS
First Claim
1. A method of maximizing transmit power of a mobile device, comprising:
- transmitting on a first antenna at a first frequency on the mobile device for a first period of time; and
switching transmitting to a second antenna at a second frequency for a second period of time, based on a measured specific absorption rate (SAR) value.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for avoiding transmit power limitations due to specific absorption rate (SAR) constraints. The method maximizes transmit power by transmitting on a first transmitter for a first period of time, second transmitter for a second period of time, through an Nth transmitter for an Nth period of time. The transmission time periods may or may not overlap, and the SAR distributions may or may not overlap. The transmitters may or may not transmit at different frequencies and may or may not share antennas. The average transmit power may be reduced by the number of transmitters that are periodically transmitting. The period of transmission for a given transmitter may be inversely proportional to the measured SAR for that particular transmitter.
23 Citations
20 Claims
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1. A method of maximizing transmit power of a mobile device, comprising:
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transmitting on a first antenna at a first frequency on the mobile device for a first period of time; and switching transmitting to a second antenna at a second frequency for a second period of time, based on a measured specific absorption rate (SAR) value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile device, comprising:
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two transmit antennas coupled to a transceiver; a power supply coupled to the transceiver; and a memory storing measured specific absorption rate (SAR) values coupled to a data processor capable of switching between the two transmit antennas. - View Dependent Claims (11, 12, 13)
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14. An apparatus for maximizing transmit power of a mobile device, comprising:
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means for transmitting on a first antenna at a first frequency on the mobile device for a first period of time; and means for switching transmitting to a second antenna at a second frequency on the mobile device for a second period of time, based on a measured specific absorption rate (SAR) value. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification