Rate matching device and method for long term evolution system
A long-term evolution system and rate matching technology, which is applied in the field of rate matching devices, can solve problems such as processing wrong data information, not meeting customization requirements, and unable to perform data packet matching operations, etc., and achieve the effects of simplified coupling, reduced number, and saved circuit resources
Active Publication Date: 2013-08-07
ZTE CORP
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Problems solved by technology
If the circuit resources allocated by the system to the rate matching device can only achieve less than N serial rate matching, then the existing serial processing structure cannot complete the matching operations of all data packets within the specified T clock cycles, resulting in Wrong data information was processed when the level processing flow started
In this way, the information received by users will not meet their customized requirements
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[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0024] The main purpose of the present invention is to overcome the defect of low peak throughput caused by adopting serial rate matching devices in the existing system, and provide a method and device for realizing parallel rate matching.
[0025] Such as figure 2 As shown, in general, the device in the embodiment of the present invention is to set a parallel rate matching device after the parallel channel coder to perform rate matching on the output data packets of the channel coder, and the output data of the channel coder includes data packets Parameters, the parallel rate matching device includes: a parallel input controller connected in sequence, at least one circular buffer, a parallel output controller, and a parallel output processor; the parallel input controller is used to combine the data packet parameters and its corresponding ...
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The invention discloses a rate matching device and a rate matching method for a long term evolution system, which are used for rate matching of an output data packet. The device comprises a parallel input controller, at least one circulating buffer area, a parallel output controller and a parallel output processor connected in turn; the parallel input controller is used for writing a data packet parameter, an input data packet corresponding to the data packet parameter and a bit type marker into the circulating buffer area; the parallel output controller is used for outputting the data packetparameter, the input data packet corresponding to the data packet parameter and the bit type marker read from the circulating buffer area to the parallel output processor; and the parallel output processor is used for processing the input data packet according to the data packet parameter and the bit type marker and outputting the processed input data packet. The device and the method realize parallel rate matching so as to remarkably improve the peak value throughput of the system and obviously reduce the circuit resources consumed by the system.
Description
technical field [0001] The present invention relates to communication technology, in particular to a rate matching device and method in a long term evolution system. Background technique [0002] In a wireless communication system, in order to improve the anti-interference performance of data transmission, it is necessary to adopt an appropriate channel coding technology, and rate matching is a key technology after channel coding. holes or repetitions to ensure that the bit stream length after rate matching matches the allocated physical channel resource elements. When the peak rate of data transmission is required to be high, rate matching becomes a bottleneck restricting the throughput of the sending end. The LTE (Long Term Evolution, Long Term Evolution) protocol stipulates that channel coding generates three output bit streams as input for rate matching, and the length of each bit stream is equal. [0003] Existing channel coding generally adopts parallel processing te...
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IPC IPC(8): H04L1/00
Inventor 林杰
Owner ZTE CORP