The present document has been produced in the scope of the study item on "HSPA Evolution for 1.28Mcps TDD" [2]. The objective of the study item is to develop a framework for the evolution of the 1.28Mcps TDD mode of the 3GPP HSPA TD-SCDMA-based radio-access technology from Release 8 onwards. This document lists the constraints for the 1.28Mcps TDD HSPA Evolution in Release 8 and an assessment of technical proposals and their respective, achievable performance and complexity.

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