METHOD AND DEVICE FOR STREAMING CONTROL DATA IN A MOBILE COMMUNICATION SYSTEM

摘要

Interfacing between radio units in a base station in a mobile communication system uses a common public radio interface CPRI for streaming IQ data samples and control data arranged in lanes. A separate serial interface sRIO is now additionally used for transferring selected control data arranged in packets to a controller, the selected control data being streamed between other radio units via the common public radio interface. In the radio unit, the selected control data are arranged in packets to be transmitted via the serial interface, and, vice versa, the selected control data arranged in packets received via the serial interface are arranged in lanes to be streamed. Advantageously the control data of the streaming CPRI interface is seamlessly transferred to the controller via the packet based serial interface.

主权项

1. A method of interfacing in a base station in a mobile communication system, the base station comprising radio units and at least one controller unit for controlling the radio units, different types of the radio units including at least one radio equipment unit coupled to at least one antenna and at least one radio equipment controller unit for controlling the radio equipment unit, the radio units having a common public radio interface according to a common public radio interface standard for streaming data samples and control data arranged in lanes corresponding to antenna signals and a serial interface for transferring packets separate from the common public radio interface, the method comprising:
transferring, between a first radio unit and a further unit, selected control data arranged in packets via the serial interface, the selected control data corresponding to control data streamed between the first radio unit and a preceding radio unit via the common public radio interface; in the first radio unit, arranging in packets the selected control data to be transmitted via the serial interface, and, vice versa, arranging in lanes the selected control data arranged in packets received via the serial interface; and in the further unit, processing the selected control data arranged in packets received via the serial interface, and, vice versa, arranging in packets the selected control data to be transmitted via the serial interface.