Link adaptive method for grant-free uplink transmission
A transmission format and data transmission technology, which is applied in the direction of multiple use of transmission paths, transmission systems, digital transmission systems, etc., can solve the problems of reducing the overall network capacity and service quality perception, increasing transmission delay, and low base station transmission efficiency. Achieve the effect of reducing the perception of overall capacity and service quality, improving accuracy, ensuring transmission efficiency and transmission delay
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[0018] In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.
[0019] For grant-free uplink transmission, due to the lack of closed-loop control of the transmission format by the base station, the user terminal can only adopt open-loop adaptive control, and it is difficult to obtain an accurate estimate of the uplink channel condition, so it is impossible to compare the transmission format with the channel condition. Accurate matching will result in reduced transmission efficiency or increased transmission delay, reducing the overall capacity of the network and perception of service quality. Cons...
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