Rate dependent transmission gain control for WLAN systems
First Claim
1. A WLAN (Wireless Local Area Network) transmitter device capable of transmitting data in two or more different transmission modes at different transmission rates, comprising:
- a transmission gain controller for determining a transmission gain to be applied when transmitting data; and
a data transmission section for transmitting data at a transmission gain determined by said transmission gain controller,wherein said transmission gain determined by said transmission gain controller is transmission mode dependent, with the transmission gain applied in a first one of said two or more different transmission modes being greater that the transmission gain applied in a second one of said two or more different transmission modes if the transmission rate in said first one of said two or more different transmission modes is smaller than the transmission rate in said second one of said two or more different transmission modes; and
wherein said transmission gain controller is adapted to determine the transmission gain of said second one of said two or more different transmission modes by reading a mode dependent or a rate dependent gain multiplication factor from a gain table storing mode dependent or rate dependent transmission gain multiplication factors; and
wherein the mode dependent or the rate dependent gain multiplication factor read from said gain table is to be applied to a multiplier by said data transmission section.
1 Assignment
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Accused Products
Abstract
A WLAN (Wireless Local Area Network) transmission technique is provided where data is transmitted in two or more different transmission modes at different transmission rates. A transmission gain is determined to be applied when transmitting data. The transmission gain is determined to be transmission mode dependent such that the transmission gain in a first transmission mode is greater than the transmission gain in a second transmission mode if the transmission rate in the first transmission mode is lower than the transmission rate in the second transmission mode.
29 Citations
26 Claims
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1. A WLAN (Wireless Local Area Network) transmitter device capable of transmitting data in two or more different transmission modes at different transmission rates, comprising:
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a transmission gain controller for determining a transmission gain to be applied when transmitting data; and a data transmission section for transmitting data at a transmission gain determined by said transmission gain controller, wherein said transmission gain determined by said transmission gain controller is transmission mode dependent, with the transmission gain applied in a first one of said two or more different transmission modes being greater that the transmission gain applied in a second one of said two or more different transmission modes if the transmission rate in said first one of said two or more different transmission modes is smaller than the transmission rate in said second one of said two or more different transmission modes; and wherein said transmission gain controller is adapted to determine the transmission gain of said second one of said two or more different transmission modes by reading a mode dependent or a rate dependent gain multiplication factor from a gain table storing mode dependent or rate dependent transmission gain multiplication factors; and wherein the mode dependent or the rate dependent gain multiplication factor read from said gain table is to be applied to a multiplier by said data transmission section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. The integrated circuit chip providing WLAN (Wireless Local Area Network) transmitter capabilities for transmitting data in two or more different transmission modes at different transmission rates, comprising:
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a transmission gain control circuit for determining a transmission gain to be applied when transmitting data; and a data transmission circuit for transmitting data at a transmission gain determined by said transmission gain control circuit, wherein said transmission gain determined by said transmission gain control circuit is transmission mode dependent, with the transmission gain applied in a first one of said two or more different transmission modes being greater than the transmission gain applied in a second one of said two or more different transmission modes if the transmission rate in said first one of said two or more different transmission modes is smaller than the transmission rate in said second one of said two or more different transmission modes; and wherein said transmission gain control circuit is adapted to determine the transmission gain of said second one of said two or more different transmission modes by reading one of a mode dependent or a rate dependent gain multiplication factor from a gain table storing mode dependent or rate dependent transmission gain multiplication factors; and wherein the mode dependent or the rate dependent gain multiplication factor is read from said gain multiplication table is to be applied to a multiplier by said data transmission circuit.
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15. A WLAN (Wireless Local Area Network) transmission method of transmitting data in two or more different transmission modes at different transmission rates, the method comprising:
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determining a transmission gain to be applied when transmitting data; and transmitting data at a determined transmission gain, wherein said determined transmission gain is transmission mode dependent, with the transmission gain applied in a first one of said two or more different transmission modes being greater than the transmission gain applied in a second one of said two or more different transmission modes if the transmission rate in said first one of said two or more different transmission modes is smaller than the transmission rate in said second one of said two or more different transmission modes; and wherein said transmission gain of said second one of said two or more different transmission modes is obtained by reading one of a mode dependent or a rate dependent gain multiplication factor from a gain table storing mode dependant or rate dependent transmission gain multiplication factors, and wherein the mode dependent or rate dependent gain multiplication factor read from the gain table is supplied to a multiplier. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification