The Hubble tension ㅡ the persistent ~ 9% discrepancy between the Hubble constant inferred from early-universe probes (CMB) and late-universe distance-ladder measurements ㅡ suggests missing structure in the standard cosmological model. This paper proposes a conceptual resolution based on the Unified Phase Field (UPF) framework, interpreting the universe as a global phase vortex with asymmetric Collapse- and Expansion-dominant regions. In this view, the two measured values of H_0 do not represent a disagreement but rather reflect distinct local effective expansion rates arising from different positions in the cosmic phase field. Collapse-dominant (P-phase) regions correspond to highly aligned, order-rich structures, naturally associated with the global CMB-inferred H_0 ≈ 67km/s/Mpc, while Expansion-dominant (NP-phase) regions correspond to locally disordered phase domains, matching the late-time H_0 ≈ 73km/s/Mpc. A phenomenological functional model is proposed to capture the dependence of H_0 on phase-field position and alignment (PLV). This work does not aim to replace ΛCDM, but to offer an alternative conceptual framework linking computational asymmetry (P vs NP), phase topology, and cosmological expansion. Several qualitative observational predictions ㅡ including environmental dependence, anisotropic signatures, and long-term evolution ㅡ are outlined.