Height dependent transmission from aerial wireless devices
A method, network node and aerial wireless device (AWD) for height based out of band emission control of the AWD are disclosed. A network node configured to communicate with an AWD is provided. According to one aspect, a network node is configured to signal emission control parameter information for modifying a transmission power of the AWD based at least in part on a height of the wireless device.
1 . A network node configured to communicate with an aerial wireless device (AWD), the network node comprising a radio interface configured to:
signal emission control parameter information for modifying a transmission power of the AWD based at least in part on a height of the AWD, the emission control parameter information indicating one or more emission control parameters;
send a height threshold to the AWD; and
configure the AWD to control emissions by applying a first emission control parameter when the height is greater than the height threshold and by applying a second emission control parameter when the height is not greater than the height threshold;
signaling to the AWD a mapping between the height and an emissions control parameter, wherein the emission control parameter further includes at least one of a maximum power reduction value and network signaling value, wherein:
the mapping depends in part on a frequency of operation of the AWD and a victim wireless device interfered with by the AWD,
the mapping assigns a respective emission control parameter to each successive range between successive height thresholds of N−1 height thresholds, N being an integer greater than 1, and the emission control parameters are applied on AWD based on one or more of velocity, direction, vector direction characteristics of the AWD.
2 . A method in a network node configured to communicate with an aerial wireless device (AWD), the method comprising:
signaling emission control parameter information for modifying a transmission power of the AWD based at least in part on a height of the AWD, the emission control parameter information indicating one or more emission control parameters;
sending a height threshold to the AWD; and
configuring the AWD to control emissions by applying a first emission control parameter when the height is greater than the height threshold and by applying a second emission control parameter when the height is not greater than the height threshold;
signaling to the AWD a mapping between the height and an emissions control parameter, wherein the emission control parameter further includes at least one of a maximum power reduction value and network signaling value, wherein:
the mapping depends in part on a frequency of operation of the AWD and a victim wireless device interfered with by the AWD,
the mapping assigns a respective emission control parameter to each successive range between successive height thresholds of N−1 height thresholds, N being an integer greater than 1, and the emission control parameters are applied on AWD based on one or more of velocity, direction, vector direction characteristics of the AWD.
3 . The method of claim 2 , further comprising configuring the AWD to reduce a transmit power of the AWD in a frequency guard band.
4 . An aerial wireless device (AWD) configured to communicate with a network node, the AWD comprising processing circuitry configured to:
determine emission control parameter information for modifying a transmission power of the AWD based at least in part on a height of the AWD, determining the emission control parameter information includes at least one of:
receiving emission control parameter information from a network node; and
based on a pre-defined rule;
the emission control parameter information indicating one or more emission control parameters;
receiving a height threshold to the AWD;
configuring the AWD to control emissions by applying a first emission control parameter when the height is greater than the height threshold and by applying a second emission control parameter when the height is not greater than the height threshold; and
controlling out of band (OOB) emissions of the AWD based on the emission control parameter, wherein:
the emission control parameter further includes at least one of a maximum power reduction value and network signaling value,
at least one of first and second power levels are configured based at least in part on an emission control parameter received from the network node,
controlling out of band (OOB) emissions further comprising reducing the emissions by a first margin when the height is greater than the height threshold and reducing the emissions by a second margin when the height is not greater than the height threshold, and
the emission control parameters are applied on AWD based on one or more of velocity, direction, vector direction characteristics of the AWD.
5 . A method in an aerial wireless device (AWD) configured to communicate with a network node, the method comprising:
determining emission control parameter information for modifying a transmission power of the AWD based at least in part on a height of the AWD, determining the emission control parameter information includes at least one of:
receiving emission control parameter information from a network node; and
based on a pre-defined rule;
the emission control parameter information indicating one or more emission control parameters;
receiving a height threshold;
configuring the AWD to control emissions by applying a first emission control parameter when the height is greater than the height threshold and by applying a second emission control parameter when the height is not greater than the height threshold; and
controlling out of band (OOB) emissions of the AWD based on the emission control parameter, wherein:
the emission control parameter further includes at least one of a maximum power reduction value and network signaling value,
at least one of first and second power levels are configured based at least in part on an emission control parameter received from the network node,
controlling out of band (OOB) emissions further comprising reducing the emissions by a first margin when the height is greater than the height threshold and reducing the emissions by a second margin when the height is not greater than the height threshold, and
the emission control parameters are applied on AWD based on one or more of velocity, direction, vector direction characteristics of the AWD.
6 . The method of claim 5 , wherein emission control parameter information depends in part on a frequency of operation of the AWD.
7 . The method of claim 5 , wherein emission control parameter information depends in part on a frequency of operation of a victim wireless device interfered by the AWD.
8 . The method of claim 5 , further comprising reporting the height to the network node.
9 . The method of claim 5 , further comprising receiving the height threshold at least one of:
from a network node; and
based on a pre-defined rule.
10 . The method of claim 9 , wherein controlling out of band (OOB) emissions further comprising applying a first emission control parameter when the height is greater than the height threshold and by applying a second emission control parameter when the height is not greater than the height threshold.