China Mobile Communications Corporation

Zhihua Shi

Rui Wang

Qixing Wang

Jianjun Liu

Xiaodong Xu

Fei Wang

Lei Wang

Guangyi Liu

Hai Tang

Lu Han

Lijie Hu

Zhenping Hu

Dajie Jiang

Xiaodong Shen

Chengkang Pan

Xiaozhou Wang

The present disclosure provides a method for indicating a modulation and coding scheme (MCS), including a step of when it is determined that a UE supports a downlink 256QAM mode, indicating the 256QAM mode using current information indicating the MCS or extended information indicating the MCS in downlink control information (DCI). The present disclosure further provides a method for receiving downlink data, including a step of, after a UE has received information indicating an MCS which includes indication information indicating a 256QAM mode, receiving the downlink data according to the 256QAM mode and a corresponding TBS index. The present disclosure further provides devices for implementing the above methods.

Method and device for indicating modulation and coding scheme, and method and device for receiving downlink data

Disclosed in embodiments of the present invention are a CSI-RS transmission method, an inspection method and a device thereof. The transmission method comprises: transmitting a CSI-RS via any downlink subframe other than a special subframe, a downlink subframe transmitting a control message, or a downlink subframe transmitting a system message. Embodiments of the present invention enable the CSI-RS to be prevented from conflicting with the control message, the system message, and a message carried by the special subframe.

CSI-RS transmission method and detection method and apparatuses thereof

A method, a device and a system for indicating terminal specific Demodulation Reference Signal (DMRS) are provided by the invention. The method includes that: a network side creates signal indicating information, and sends the created signal indicating information to a terminal (S); the terminal, according to Transmission Block (TB) indicating information of the TB and multiple bits control information which are included in the signal indicating information, confirms DMRS pattern information, antenna port information and a scrambling ID of a reference signal sequence (S) allocated for itself. The method, the device and the system provide by the invention, compared to the prior art, reduce signaling overhead which indicates the terminal specific DMRS, thus reducing resources waste of the system.

Method device and system for indicating user equipment-specific demodulation reference signal

A method, an apparatus and a system for sending Sounding Reference Signal (SRS) and a method, an apparatus and a system for receiving SRS are disclosed in the present invention, which are used to reduce the requirement for Time Frequency Code (TFC) resource during the process of sending the SRS, and meanwhile to ensure the precision of channel information estimation. The method includes the steps of: determining a first frequency band required by sending the SRS, and determining a second frequency band whose width is smaller than the width of the first frequency band; according to the mode that the average interval for sending the SRS on the first frequency band is larger than the average interval for sending the SRS on the second frequency band, respectively sending the SRS on the first frequency band and the second frequency band.

Method, apparatus and system for sending and receiving sounding reference signal

A method, system and device for wireless communication are provided by the present invention. The method includes that: from the ending of the Transmit-Receive Guard interval (TRG) to the beginning of the Receive-Transmit Guard interval (RTG), an evolved Node B (eNB) carries Common Reference Signals (CRSs) or Demodulated Reference Signals (DMRSs) on the carriers are used for transmitting data signals and/or control signals to a Relay Node (RN); the RN demodulates, according to the CRSs or the DMRSs, the signals transmitted by the eNB; the TRG is the guard interval of the transition, for the RN, from transmitting signals to receiving signals over the backhaul link, and the RTG is the guard interval of the transition, for the RN, from receiving signals to transmitting signals over the backhaul link. The application of the present invention enables the RN to receive the data signals and/or control signals transmitted by the eNB correctly.

Method, system and device for wireless communication

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Beijing, China

Zhihua Shi