Cyclic Prefix Distribution for Wireless Throughput

The cyclic prefix is segmented into two distinct parts: a first cyclic prefix with a first length and a second cyclic prefix with a second length. The first cyclic prefix maintains the traditional function of mitigating intersymbol interference, while the second cyclic prefix is repurposed to carry additional data or reference signals. This segmentation allows the system to preserve reliability benefits while improving throughput by utilizing previously wasted resources.

The second cyclic prefix is given multiple functions: it continues to provide some protection against intersymbol interference while simultaneously serving as a carrier for additional data or reference signals. This multi-functionality transforms a previously single-purpose resource into a dual-purpose element, thereby improving spectral efficiency and throughput without sacrificing the essential protective function.

Rather than using a single extended cyclic prefix covering the entire symbol duration, the patent divides the cyclic prefix protection into two segments: a first cyclic prefix that provides the necessary protection and a second cyclic prefix that can be repurposed. This segmentation eliminates the need to extend the cyclic prefix across the full symbol duration, thereby improving resource allocation efficiency while maintaining adequate protection.

The patent changes the parameter distribution of the cyclic prefix by introducing two different lengths instead of one uniform length. The first cyclic prefix has a length optimized for interference mitigation, while the second cyclic prefix has a reduced length that allows for alternative uses. This parameter change optimizes both protection effectiveness and resource efficiency.

The patent introduces dynamic cyclic prefix management where the second cyclic prefix can be dynamically allocated for different purposes (data or reference signals) depending on the specific transmission requirements. This dynamic approach allows the system to adapt to different scenarios and add symbols flexibly without requiring a complete redesign of the cyclic prefix management structure, thereby controlling complexity while improving capacity.

The patent applies different qualities to different parts of the cyclic prefix structure. The first cyclic prefix maintains traditional properties optimized for interference mitigation, while the second cyclic prefix has modified properties that enable flexible allocation for additional data or signaling. This local differentiation allows additional symbols to be added without uniformly increasing complexity across the entire structure.