The invention relates to the field of wireless communication, and discloses a downlink shared channel communication method and device. In the invention, the invalid unit is defined as a data signal according to the sequence of predetermined emission, the reference signal is sent as usual, the terminal side can through the relative relationship between the data signal coherent accumulation results with the magnitude of the noise and determine whether the received invalid unit. The method of judging the invalid unit is easy to implement, because it uses coherent accumulation technology, so it has detection gain and noise immunity for noncoherent accumulation method. By first detecting invalid unit according to the detection unit of blind detection and decoding invalid search space is optimized, then the blind detection algorithm, can effectively reduce the test number of blind detection and decoding downlink physical channel, saving the terminal processing power and battery capacity.
【技术实现步骤摘要】
【技术保护点】
一种下行共享信道的发射方法,其特征在于,包括以下步骤: 对需要发射的下行共享信道的数据进行调制,得到调制数据信号; 如果需要在所述下行共享信道的发射无效单元,则以预先设定的序列作为与该无效单元对应的调制数据信号; 将所述调 制数据信号与参考信号合成后发射。
【技术特征摘要】
【专利技术属性】
技术研发人员:吴涛,陈垚,
申请(专利权)人:展讯通信上海有限公司,
类型:发明
国别省市:31[中国|上海]
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