US Patent No. 10,716,104

METHOD FOR CONTROLLING C-RAN


Patent No. 10,716,104
Issue Date July 14, 2020
Title Method For Controlling C-ran
Inventorship Jen-Feng Huang, Kaohsiung (TW)
Assignee INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu (TW)

Claim of US Patent No. 10,716,104

1. A method for controlling C-RAN, applicable for a C-RAN having a plurality of remote radio heads and a baseband unit, wherein the method comprises:receiving a plurality of preambles from the plurality of remote radio heads wherein each of the preambles is corresponding to one user end device;
determining at least one type-2 downlink packet based on the plurality of preambles and the plurality of remote radio heads;
if the number of the at least one type-2 downlink packet is plural, determining whether a number of resource blocks of a physical downlink control channel is enough or not based on an amount of control signals of the plurality of type-2 downlink packets; and
if the number of resource blocks is not enough, integrating at least part of the plurality of type-2 downlink packets based on a remote radio head arrangement table; and
wherein the remote radio head arrangement table is used for describing a relationship between geometric locations of the plurality of remote radio heads, and the method further comprises controlling part of the plurality of remote radio heads receiving the plurality of preambles to receive a third message.