Timi Technologies Co., Ltd.

China Radio International

Broadease Technologies Co., Ltd.

Beijing Cri-tech Radio and Television Technologies Co., Ltd.

Xiaowei Cao

Min Wu

Wen Qing Chen

Qun Li

Qinghua Yang

Lian Wang

Dong Bai

Tao Tao

Hongbing Shen

Qiusheng Wang

Hongqi Jiang

Ruirui Ye

Xiaoge Huang

Xiaoning Feng

Xinhong Xu

Yi Guan

Ju Ma

The present invention relates to a method and system for implementing a large area and continuous coverage of programs in a digital audio broadcasting, wherein, part of carrier frequencies are set as common carrier frequencies, and other carrier frequencies are set as service carrier frequencies; all of the common carrier frequencies are combined together to achieve a seamless coverage for the large area; a transmitting end transmits a common frequency point identifier and a program information list on the common carrier frequencies, and transmits digital broadcasting programs on the service carrier frequencies; a receiving end identifies the common carrier frequency based on the common frequency point identifier and receives the digital broadcasting program on the common carrier frequencies; for a specific program desired to be received, all the carrier frequencies on broadcasting of the program are searched based on the received program information list, and the carrier frequency with best signal quality is selected for receiving; during the reception process of the specific program, signal quality of other carrier frequency on broadcasting of the specific program is monitored, and when the signal quality of current receiving carrier frequency decreases, the program is continue to be received by switching to another carrier frequency with better signal quality. By using the method and system according to the present invention, it can be realized that programs can be continuously covered for a large area and received seamlessly.

Method and system for implementing a large area continuous coverage of programs in digital audio broadcasting

An efficient general QC-LDPC code decoder includes a general-purpose processor for distributing the storage storage space of the data memory block, and establishing an index for data addressing; a data memory block for storing the information used during decoding; a hardware accelerator for conducting part or all of the information processing operations including parity check, check node updating and variable node updating. A corresponding QC-LDPC code decoding method includes initializing the variable node information and performing parity check on the check matrix row block by row block; updating the check node row block by row block and updating the variable node column block by column block if any check equation is not met.

QC-LDPC code decoder and corresponding decoding method

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Beijing, China

Xiaowei Cao