MESSAGE ADAPTATION OVER NONCOHERENT CHANNELS

原文（中文）

Methods, systems, and devices for wireless communications are described. In low signal to noise ratio (SNR) conditions, a transmitting wireless communication device may use non-coherent transmissions, which may be transmissions without corresponding pilot sequences. Non-coherent transmissions may involve transmissions in subsets of symbols based on a duty cycle to increase the peak transmission power of the message in the transmitted symbols. A transmitting wireless communication device may select at least one of the duty cycle, the bandwidth, or the quantity of bits included in a non-coherent message (e.g., the message length) to satisfy a performance demand for the message. For example, the message length may be adjusted by increasing or decreasing the amount of redundancy or by adjusting code block groups. As another example, selecting a larger bandwidth may allow for transmission via more frequency resources, and accordingly, selection of a larger bandwidth may allow for a larger message size.