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Communication transmission system, digital wireless communication transmission system, devices, and method of digital communication

專利號
US10034272B2
公開日期
2018-07-24
申請人
FUJITSU LIMITED（JP Kawasaki）
發(fā)明人
Jianming Wu
IPC分類
H04W72/04; H04L1/18
技術領域
enb,packet,ue,unit,serving,data,reception,in,channel,wireless
地域： Kawasaki-shi, Kanagawa

摘要

A digital communication system including a terminal and a plurality of base stations. The terminal includes receiving of a first control channel which is transmitted only from the first base station, the received first control channel is configured to indicate resource assignment for both data transmitted from the first base station and data coordinately transmitted from the second base station, and is configured to indicate new data or retransmission data. The terminal a second control channel including first control information and second control information only to the first base station. The first control information is channel state information, and the second control information is Hybrid Automatic Repeat reQuest (HARQ) acknowledgement information for the received data coordinately transmitted. The second control information is based on a result of the HARQ process of the received data coordinately transmitted, and the second control channel is transmitted only to the first base station.

說明書

The present application has proposed the coordinated transmission system for the HARQ process to again a high SINR gain using the reception device for performing the SIC process.

The present application realizes the SIC process more easily by using the unique behavior of the HARQ constantly indicating a low BLER after the combination of HARQs.

To attain high SINR gain by the SIC process, it is preferable that a retransmission data packet is eventually delivered on the link constantly from the serving eNB to the UE and a new data packet is delivered on the link from the coordinated eNB to the UE during the delivery. However, it is obvious that an inverse process can be used.

Relating to a control channel, three channels, that is, a physical uplink control channel (PUCCH), a physical downlink control channel (PDCCH), and a X2 control channel (X2CCH), are regarded by considering the feasibility and the facility. The design of the control channels can exceedingly reduce the amount of control channel, and considerably shorten the system latency.

The above-mentioned coordinated transmission system can also be applied to an intra-eNode-B in which a coordinated transmission occurs between two transmission points in the same eNode-B.

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