Reducing interference with a multiple format channel in a communication system
First Claim
1. An apparatus, operable with a signal comprising a plurality of transport channels, each transport channel associated with one of a plurality of formats, the number and format of the channels variable from frame to frame, and further operable with an interfering signal, the time and duration of which is known, the apparatus comprising:
- a variable power level transmitter, for transmitting the signal at various power levels in response to a power level signal;
a processor for;
determining a plurality of minimum power levels, each power level the minimum power level for a transport channel in the frame;
increasing one or more of the plurality of power levels in accordance with one or more interference power levels when the interfering signal interferes with the one or more transport channels associated with those power levels;
selecting the highest power level of the plurality of minimum power levels; and
generating the power level signal in accordance with the highest power level.
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Abstract
Techniques for reducing interference with a multiple format channel in a communication system are disclosed. In one aspect, a minimum power level is determined for each format transmitted during a transmission interval. The minumum power level for formats that will experience the interference are increased to compensate. The power level selected for transmission during the transmission interval is the most stringent of the minimum power levels. Various other aspects are also presented. These aspects have the benefit of mitigating the effects of a known interfering signal, while avoiding unnecessarily increasing transmit power, thus reducing the interference to other users and increasing system capacity.
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Citations
31 Claims
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1. An apparatus, operable with a signal comprising a plurality of transport channels, each transport channel associated with one of a plurality of formats, the number and format of the channels variable from frame to frame, and further operable with an interfering signal, the time and duration of which is known, the apparatus comprising:
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a variable power level transmitter, for transmitting the signal at various power levels in response to a power level signal;
a processor for;
determining a plurality of minimum power levels, each power level the minimum power level for a transport channel in the frame;
increasing one or more of the plurality of power levels in accordance with one or more interference power levels when the interfering signal interferes with the one or more transport channels associated with those power levels;
selecting the highest power level of the plurality of minimum power levels; and
generating the power level signal in accordance with the highest power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A wireless communication device, operable with a signal comprising a plurality of transport channels, each transport channel associated with one of a plurality of formats, the number and format of the channels variable from frame to frame, and further operable with an interfering signal, the time and duration of which is known, the wireless communication device comprising:
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a variable power level transmitter, for transmitting the signal at various power levels in response to a power level signal;
a processor for;
determining a plurality of minimum power levels, each power level the minimum power level for a transport channel in the frame;
increasing one or more of the plurality of power levels in accordance with one or more interference power levels when the interfering signal interferes with the one or more transport channels associated with those power levels;
selecting the highest power level of the plurality of minimum power levels; and
generating the power level signal in accordance with the highest power level.
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18. A wireless communication system, including a wireless communication device, operable with a signal comprising a plurality of transport channels, each transport channel associated with one of a plurality of formats, the number and format of the channels variable from frame to frame, and further operable with an interfering signal, the time and duration of which is known, the wireless communication device comprising:
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a variable power level transmitter, for transmitting the signal at various power levels in response to a power level signal;
a processor for;
determining a plurality of minimum power levels, each power level the minimum power level for a transport channel in the frame;
increasing one or more of the plurality of power levels in accordance with one or more interference power levels when the interfering signal interferes with the one or more transport channels associated with those power levels;
selecting the highest power level of the plurality of minimum power levels; and
generating the power level signal in accordance with the highest power level.
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19. A method of reducing interference with a multiple format channel, the method comprising:
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determining one or more transport channels that will experience interference;
determining the minimum power level required for each format in the channel, increasing the minimum power level for those channels that will experience interference;
selecting the largest of the minimum power levels as the transmit power level; and
transmitting the multiple format channel in accordance with the transmit power level. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An apparatus, comprising:
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means for determining one or more transport channels that will experience interference;
means for determining the minimum power level required for each format in the channel, increasing the minimum power level for those channels that will experience interference;
means for selecting the largest of the minimum power levels as the transmit power level; and
means for transmitting the multiple format channel in accordance with the transmit power level. - View Dependent Claims (27)
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28. A wireless communication device, comprising:
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means for determining one or more transport channels that will experience interference;
means for determining the minimum power level required for each format in the channel, increasing the minimum power level for those channels that will experience interference;
means for selecting the largest of the minimum power levels as the transmit power level; and
means for transmitting the multiple format channel in accordance with the transmit power level.
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29. A wireless communication system, including a wireless communication device, comprising:
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means for determining one or more transport channels that will experience interference;
means for determining the minimum power level required for each format in the channel, increasing the minimum power level for those channels that will experience interference;
means for selecting the largest of the minimum power levels as the transmit power level; and
means for transmitting the multiple format channel in accordance with the transmit power level.
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30. Processor readable media operable to perform the following steps:
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determining one or more transport channels that will experience interference;
determining the minimum power level required for each format in the channel, increasing the minimum power level for those channels that will experience interference;
selecting the largest of the minimum power levels as the transmit power level; and
transmitting the multiple format channel in accordance with the transmit power level. - View Dependent Claims (31)
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Specification