METHOD AND APPARATUS FOR TRANSMISSION BY TIME DIVISION DUPLEXING (TDD) DEVICES USING MULTIPLE ANTENNAS
First Claim
1. A method for transmission by a time division duplexing (TDD) device, comprising:
- receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition;
determining a first transmit condition for the first antenna based on the first receive condition and a second transmit condition for the second antenna based on the second receive condition;
comparing the first transmit condition and the second transmit condition;
selecting one of the first antenna and the second antenna based on the comparing; and
sending a transmission on the frequency from the selected one of the first antenna and the second antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
TDD devices may transmit using multiple antennas. First and second antennas having first and second receive conditions may receive a communication. In an aspect, first and second transmit conditions for the first and second antennas may be determined based on the first and second receive conditions. In an aspect, the first and second transmit conditions may be compared to select the first or second antenna for transmissions. In an aspect, the first and second receive conditions may be compared to select the first or second antenna for transmissions. In an aspect, first and second transmission conditioning values, which may determine transmission powers, may be determined based on the first and second receive conditions. A first transmission chain, associated with an active RAT or carrier, and a second transmission chain, associated with an inactive RAT or carrier, may be activated to send transmissions from the first and second antennas.
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Citations
25 Claims
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1. A method for transmission by a time division duplexing (TDD) device, comprising:
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receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; determining a first transmit condition for the first antenna based on the first receive condition and a second transmit condition for the second antenna based on the second receive condition; comparing the first transmit condition and the second transmit condition; selecting one of the first antenna and the second antenna based on the comparing; and sending a transmission on the frequency from the selected one of the first antenna and the second antenna. - View Dependent Claims (2, 3, 4, 5)
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6. A computer program product for transmission by a time division duplexing (TDD) device, comprising:
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a computer readable medium comprising; code for causing at least one computer to; receive a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; determine a first transmit condition for the first antenna based on the first receive condition and a second transmit condition for the second antenna based on the second receive condition; compare the first transmit condition and the second transmit condition; select one of the first antenna and the second antenna based on the comparing; and send a transmission on the frequency from the selected one of the first antenna and the second antenna.
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7. An apparatus for transmission by a time division duplexing (TDD) device, comprising:
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means for receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; means for determining a first transmit condition for the first antenna based on the first receive condition and a second transmit condition for the second antenna based on the second receive condition; means for comparing the first transmit condition and the second transmit condition; means for selecting one of the first antenna and the second antenna based on the comparing; and means for sending a transmission on the frequency from the selected one of the first antenna and the second antenna.
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8. An apparatus for transmission by a time division duplexing (TDD) device, comprising:
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at least one memory in communication with a communication module, a receive/transmit condition module, a comparison module, and a selection module; the communication module configured to receive a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; the receive/transmit condition module configured to determine a first transmit condition for the first antenna based on the first receive condition and a second transmit condition for the second antenna based on the second receive condition; the comparison module configured to compare the first transmit condition and the second transmit condition; and the selection module configured to select one of the first antenna and the second antenna based on the comparing, wherein the communication module is further configured to send a transmission on the frequency from the selected one of the first antenna and the second antenna. - View Dependent Claims (9, 10, 11, 12)
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13. A method for transmission by a time division duplexing (TDD) device, comprising:
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receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; comparing the first receive condition and the second receive condition; selecting one of the first antenna and the second antenna based on the comparing; determining a transmit condition for the selected one of the first antenna and the second antenna based on the corresponding first receive condition or second receive condition; configuring a transmission on the selected one of the first antenna and the second antenna based on the determined transmit condition; and sending the transmission on the frequency from the selected one of the first antenna and the second antenna.
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14. A method for transmission by a time division duplexing (TDD) device, comprising:
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receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition, wherein the first receive condition and the second receive conditions are signal strengths; determining a first transmission conditioning value for the first antenna based on the first receive condition and a second transmission conditioning value for the second antenna based on the second receive condition, wherein the first transmission conditioning value and the second transmission conditioning value are weights associated with transmission power; adjusting a first transmission power of the first antenna based on the first transmission conditioning value; adjusting a second transmission power of the second antenna based on the second transmission conditioning value; activating a first transmission chain associated with the first antenna and a second transmission chain associated with the second antenna, wherein the first transmission chain is associated with an active radio access technology or carrier and the second transmission chain is associated with an inactive radio access technology or carrier; and sending a transmission from the first antenna using the first transmission chain based on the adjusted first transmission power and from the second antenna using the second transmission chain based on the adjusted second transmission power. - View Dependent Claims (15, 16, 17, 18)
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19. A computer program product for transmission by a time division duplexing (TDD) device, comprising:
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a computer readable medium comprising; code for causing at least one computer to; receive a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; determine a first transmission conditioning value for the first antenna based on the first receive condition and a second transmission conditioning value based on the second receive condition, wherein the first transmission conditioning value and the second transmission conditioning value are weights associated with transmission power; adjust a first transmission power of the first antenna based on the first transmission conditioning value; adjust a second transmission power of the second antenna based on the second transmission conditioning value; activate a first transmission chain associated with the first antenna and a second transmission chain associated with the second antenna, wherein the first transmission chain is associated with an active radio access technology or carrier and the second transmission chain is associated with an inactive radio access technology or carrier; and send the transmission from the first antenna using the first transmission chain based on the adjusted first transmission power and from the second antenna using the second transmission chain based on the adjusted second transmission power.
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20. An apparatus for transmission by a time division duplexing (TDD) device, comprising:
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means for receiving a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; means for determining a first transmission conditioning value for the first antenna based on the first receive condition and a second transmission conditioning value based on the second receive condition, wherein the first transmission conditioning value and the second transmission conditioning value are weights associated with transmission power; means for adjusting a first transmission power of the first antenna based on the first transmission conditioning value; means for adjusting a second transmission power of the second antenna based on the second transmission conditioning value; means for activating a first transmission chain associated with the first antenna and a second transmission chain associated with the second antenna, wherein the first transmission chain is associated with an active radio access technology or carrier and the second transmission chain is associated with an inactive radio access technology or carrier; and means for sending the transmission from the first antenna using the first transmission chain based on the adjusted first transmission power and from the second antenna using the second transmission chain based on the adjusted second transmission power.
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21. An apparatus for transmission by a time division duplexing (TDD) device, comprising:
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at least one memory in communication with a communication module and a transmission conditioning module; the communication module configured to receive a communication on a frequency at a first antenna having a first receive condition and a second antenna having a second receive condition; the transmission conditioning module configured to determine a first transmission conditioning value for the first antenna based on the first receive condition and a second transmission conditioning value based on the second receive condition, wherein the first transmission conditioning value and the second transmission conditioning value are weights associated with transmission power, wherein the communication module is further configured to; adjust a first transmission power of the first antenna based on the first transmission conditioning value; adjust a second transmission power of the second antenna based on the second transmission conditioning value; activate a first transmission chain associated with the first antenna and a second transmission chain associated with the second antenna, wherein the first transmission chain is associated with an active radio access technology or carrier and the second transmission chain is associated with an inactive radio access technology or carrier; and send the transmission from the first antenna using the first transmission chain based on the adjusted first transmission power and from the second antenna using the second transmission chain based on the adjusted second transmission power. - View Dependent Claims (22, 23, 24, 25)
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Specification