Method for UL data transmission in wireless communication system

Abstract

The present invention provides a UL data transmission method in a wireless communication system, including determining, by the UE, UL virtual resources allocated to the UE by the eNB according to Downlink Control Information (DCI) used for scheduling UL physical resources sent from the eNB to the UE; determining, by the UE, the UL physical resources used for transmitting the UL data after frequency hopping processing in a preset frequency domain when determining that the UL data needs to be processed with frequency hopping processing according to the DCI, if the UL virtual resources allocated to the UE locate at UL sub-frames in a non-aggregation K of any wireless frame, and locate at the preset frequency domain; bearing, by the UE, the UL data and feeding the UL data back to the eNB utilizing the determined UL physical resources which are processed with the frequency hopping processing and used for transmitting the UL data. With the present invention, the PUSCH channel resource collision may be avoided, the frequency diversity gain may be maximized, and the PUSCH performances may be enhanced.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]The present application claims priority under 35 U.S.C. §365 to International Patent Application No. PCT / KR2012 / 007512 filed Sep. 20, 2012, entitled “A METHOD FOR UL DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM”. International Patent Application No. PCT / KR2012 / 007512 claims priority under 35 U.S.C. §365 and / or 35 U.S.C. §119(a) to Chinese Patent Application No. 201110288951.X filed Sep. 20, 2011 and which are incorporated herein by reference into the present disclosure as if fully set forth herein.TECHNICAL FIELD[0002]The present invention relates to wireless communication technologies, and more particularly, to a method for UL (Uplink) data transmission in a wireless communication system.BACKGROUND ART[0003]In the existing Long Term Evolution (LTE) standard of the 3rd Generation Partnership Project (3GPP), a DL (Downlink) transmission technology is based on Orthogonal Frequency Division Multiplexing (OFDM) while a UL transmission...

AI Technical Summary

Benefits of technology

This approach ensures collision-free UL data transmission and maintains frequency domain diversity gain, enhancing system performance and reducing the need for multiple power amplifiers across different frequency bands.

Problems solved by technology

At the same time, along with the development of actual network deployment and system operations, in the future evolution of the Time Division (TD)-LTE system, the problem that different CCs adopts different sub-frame configurations becomes an important problem needing to be taken into account in the evolution of the TD-LTE system.

As shown in FIG. 2, the problem of the first method lies in that the costs of the Rel-11 terminals are greatly enhanced, and the realization and markets of the Rel-11 products are restricted.

Meanwhile, how to support the power control of cell edge users with limited power and UL ACK / NACK is also a problem to be solved by the first method.

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