CPC H04W 52/242 (2013.01) [H04W 52/283 (2013.01); H04W 74/0816 (2013.01)] | 12 Claims |
1. An apparatus comprising:
at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
receive, by a user terminal, configuration for a grant-free transmission on a shared radio resource, the grant-free transmission comprising at least one collision avoidance transmission and at least one data transmission, wherein the at least one collision avoidance transmission precedes the at least one data transmission;
determine a first transmission power for the at least one data transmission; determine a second transmission power for the at least one collision avoidance transmission based on information indicative to a location of the user terminal proportionate to a location of an access node providing a radio cell, and
transmit the at least one collision avoidance transmission at the second determined power and the at least one data transmission at the determined first transmission power,
wherein, in the case the information indicative to the location of the user terminal proportionate to the location of the access node is timing advance value, the second transmission power is determined such that the smaller the timing advance value, the higher the transmission power, and
wherein, in the case the information indicative to the location of the user terminal proportional to the location of the access node is a cell identity, the second transmission power is determined based on an indication from the access node comprising transmission power or transmission power offset proportionate to the first transmission power.
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