Data transmission method and device

摘要

Provided is a data transmission method and device. The method includes: receiving IQ data from an uplink; according to the mapping of the IQ data in a Common Public Radio Interface (CPRI) basic frame, utilizing at least one storage unit to sequence the IQ data; combining a control word with the sequenced IQ data to form CPRI data, and transmitting the CPRI data. The solution utilizes at least one storage unit to sequence the IQ data, and extracts the sequenced data for a CPRI framing operation. This solution is simple in hardware processing and low in realization complexity. The change and upgrade of the transmission bandwidth of multiple modes (single mode or mixed mode) during system upgrade only occur on software layer without affecting the realization of hardware, thus having good flexibility.

主权项

1. A data transmission method, comprising:
receiving orthogonal in-phase and quadrature (IQ) data from an uplink; according to mapping of the IQ data in a Common Public Radio Interface (CPRI) basic frame, utilizing at least one storage unit to sequence the IQ data; combining a control word with the sequenced IQ data to form CPRI data, and transmitting the CPRI data; wherein according to the mapping of the IQ data in the CPRI basic frame, utilizing the at least one storage unit to sequence the IQ data comprises: sampling the IQ data; according to the mapping of the IQ data in the CPRI basic frame, respectively extracting each bit in the sampled IQ data of one clock cycle; respectively storing the each bit in different storage units; and instructing hardware to read in one clock cycle all bits of a same carrier from the different storage units to form carrier data.