Abstract: Provided is a method, system and device for automatically configuring a remote radio unit. The RRU determines configuration information corresponding to the index information received from a BBU (101) according to correspondence between preset index information and configuration information, and the RRU performs configuration processing according to the configuration information (102). Multiple sets of configuration information are stored in the RRU, and when different configuration information is required to be used, the modification of the configuration information about the RRU can be completed by simply notifying the RRU of the index information corresponding to the configuration to be modified.

Abstract: The present invention discloses a method and apparatus for sending, receiving, and transmitting data packets. In the above transmitting method, a GTP-U data packet is segmented into a plurality of data packet segments, and each data packet segment is added with attribute information of its own respectively and one or more data packet segments which have been added with the attribute information are sent each time; a plurality of data packet segments are received, the attribute information carried by each data packet segment is acquired respectively, and the received data packet segments which belong to the same GTP-U data packet are combined according to the attribute information of each data packet segment, to obtain a data packet. The technical solution provided according to the present invention can control the size of the GTP-U data packet flexibly and can extend the data packet (data payload) capacity of the sending operation which is supported by GTP-U.