BUILDING HS-SICHS IN MULTI-CARRIER TD-HSDPA SYSTEMS

摘要

In High-Speed Downlink Packet Access (HSDPA) communications in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system (called TD-HSDPA), the payload of two High-Speed Shared Information Channels (HS-SICHs) may be bundled into one HS-SICH channel by reusing the unused uplink synchronization shift (SS) for power control purposes. Thus, the HS-SICH spreading factor (SF) 16 code channel overhead may be reduced by 50%.