Methods and apparatuses for data transmission in a wireless communication system

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United States of America Patent

PATENT NO 10904039
APP PUB NO 20160056977A1
SERIAL NO

14780053

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Abstract

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Embodiments of the present disclosure relate to downlink/uplink data transmission in a wireless communication system. In an embodiment of the present disclosure, there is provided a method for downlink data transmission in a wireless communication system which comprises transmitting an indication for a new-type reference signal to a user equipment, wherein the new-type reference signal has an identical location in frequency domain to a legacy reference signal; and transmitting the new-type reference signal and the legacy reference signal to the user equipment for using in channel estimation. In a case of more than one antenna port, the new-type reference signal may be designed to have a different location in time domain from a legacy reference signal to avoid interference to other antenna ports. With embodiments of the present disclosure, it is possible to perform a channel estimation based on both the legacy reference signal and the new-type reference signal to achieve a higher accuracy of channel estimation, and thus a UE with a low SNR may be also used in LTE networks.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION7-1 SHIBA 5-CHOME MINATO-KU TOKYO 108-8001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lei, Ming Beijing, CN 386 3846
Sun, Zhennian Beijing, CN 143 428
Wang, Gang Beijing, CN 1411 9119

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