发明名称 |
METHODS AND APPARATUSES FOR DATA TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM |
摘要 |
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. |
申请公布号 |
EP2962501(A4) |
申请公布日期 |
2016.11.23 |
申请号 |
EP20130880240 |
申请日期 |
2013.03.29 |
申请人 |
NEC (CHINA) CO., LTD. |
发明人 |
WANG, GANG;SUN, ZHENNIAN;LEI, MING |
分类号 |
H04L5/00;H04L25/02;H04W72/04;H04W72/12 |
主分类号 |
H04L5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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