Channel bandwidth
First Claim
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1. A communication device for communicating via a wireless network that is permitted to operate only in communication channels that are not designated for use by another network, the communication device being configured to:
- determine that it is permitted to use a communication channel; and
use only a part of the bandwidth of that communication channel by adjusting a bandwidth And center frequency of a transmission based on an activity associated with a device operating outside of the wireless network, wherein the adjusted center frequency is different from a center frequency of the communication channel, whereinthe communication device is configured to select a spreading factor to use when communicating via the part of the bandwidth of the communication channel in dependence on the bandwidth of the communication channel, andthe communication device is configured to select the spreading factor that is, compared with a spreading factor the communication device is configured to use to transmit over the channel as a whole, reduced by a same divisor as the part of the bandwidth of the communication channel is reduced compared to the bandwidth of the channel as a whole.
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Abstract
A communication device for communicating via a wireless network that is permitted to operate only in communication channels that are not designated for use by another network, the communication device being configured to determine that it is permitted to use a communication channel and use only a part of the bandwidth of that communication channel in dependence on an activity associated with a device operating outside of the wireless network.
6 Citations
13 Claims
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1. A communication device for communicating via a wireless network that is permitted to operate only in communication channels that are not designated for use by another network, the communication device being configured to:
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determine that it is permitted to use a communication channel; and use only a part of the bandwidth of that communication channel by adjusting a bandwidth And center frequency of a transmission based on an activity associated with a device operating outside of the wireless network, wherein the adjusted center frequency is different from a center frequency of the communication channel, wherein the communication device is configured to select a spreading factor to use when communicating via the part of the bandwidth of the communication channel in dependence on the bandwidth of the communication channel, and the communication device is configured to select the spreading factor that is, compared with a spreading factor the communication device is configured to use to transmit over the channel as a whole, reduced by a same divisor as the part of the bandwidth of the communication channel is reduced compared to the bandwidth of the channel as a whole.
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2. A method for communicating via a wireless network that is permitted to operate only in communication channels that are not designated for use by another wireless network, the method comprising:
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determining that a communication device is permitted to use a communication channel; and the communication device using only a part of the bandwidth of the communication channel by adjusting a bandwidth and a center frequency of its transmission in dependence on an activity associated with another device, wherein the adjusted frequency is different from the center frequency of the communication channel; the communication device selecting a spreading factor to use when communicating via the part of the bandwidth of the communication channel in dependence on bandwidth of the communication channel; the communication device selecting a spreading factor that is, compared with the spreading factor a communication device is configured to use to transmit over the channel as a whole, reduced by a same divisor as the part of the bandwidth of the communication channel is reduced compared to the bandwidth of the channel as a whole.
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3. A communication device for communicating via a wireless network that is permitted to operate only in communication channels that are not designated for use by another network, the communication device being configured to:
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determine that it is permitted to use a communication channel; and use only a part of the bandwidth of the communication channel by adapting a bandwidth and center frequency of a transmission based on an activity associated with a device operating outside of the wireless network, wherein the communication device is configured to select a spreading factor to use when communicating via the part of the bandwidth of the communication channel in dependence on the bandwidth of the communication channel, and the communication device is configured to select the spreading factor that is, compared with a spreading factor the communication device is configured to use to transmit over the channel as a whole, reduced by a same divisor as the part of the bandwidth of the communication channel is reduced compared to the bandwidth of the channel as a whole. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification