ALEXANDRIA, Va., July 28 -- United States Patent no. 12,696,313, issued on July 28, was assigned to SSONY GROUP Corp. (Tokyo) and SONY CORPORATION OF AMERICA (New York).

"Channel access for remote radio heads (RRHs) in which MAC and PHY layers are implemented on different devices" was invented by Qing Xia (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Central Unit (CU) is connected to multiple Remote Radio Heads (RRHs) over a backhaul. The spatial separation of units creates long round-trip times, which are addressed in the present disclosure. The enhanced operation allows for counting down a BackOff (BO) on either the RRH side or on the CU side. RRHs that perform the BO procedure can res...