Non-Uniform Pilot Resource Arrangement for Port Multiplexing

The patent applies asymmetry by changing the uniform equi-spaced comb arrangement to a non-uniform arrangement where resource elements are distributed at unequal intervals. This asymmetric distribution pattern allows different ports to be multiplexed more effectively by creating distinct correlation properties between ports, thereby improving port multiplexing capability while maintaining arrangement simplicity through a defined mathematical pattern.

The patent changes the key parameter of resource element spacing from uniform (equi-spaced) to non-uniform (unequal intervals). By modifying the spacing parameter, the system achieves improved port multiplexing capability as different ports can be distinguished through their unique correlation characteristics with the non-uniformly spaced reference signals, resolving the contradiction between arrangement simplicity and multiplexing capability.

The patent employs asymmetry in resource element distribution to enable more ports to share the same frequency domain resources. By placing resource elements at non-uniform intervals, each port's reference signal develops unique correlation properties that allow the base station to distinguish between multiple ports, thereby increasing the quantity of multiplexed ports while keeping resource allocation manageable through a structured non-uniform pattern.

The patent modifies the spacing parameter of pilot resources from uniform to non-uniform distribution. This parameter change enables increased port multiplexing capacity on the same frequency domain resources by creating distinguishable signal characteristics for each port, thus resolving the contradiction between resource allocation simplicity and the number of multiplexed ports.