公开(公告)号：US20230305831A1

公开(公告)日：2023-09-28

申请号：US17705064

申请日：2022-03-25

Applicant: DISH Wireless L.L.C.

Inventor： Frank Tao Yu ,  Farhad Bassirat

IPC: G06F8/65 ,  G06F8/61 ,  H04L67/01

CPC classification number: G06F8/65 ,  G06F8/61 ,  H04L67/42

Abstract: A method for performing a software update that reduces down time in a Radio Access Network (RAN) is disclosed. A first computing device receives first Distributed Unit (DU) configuration information including an address of a first radio unit (RU) device. The first computing device cause the first RU device to stores an address of the first computing device as a value of a configuration parameter. After a second computing device installs software, the second computing device receives the first DU configuration information including the address of the first RU device. The first computing device receives an instruction to stop data transmission to the first RU device. The second computing device causes the first RU device stores an address of the second computing device as the value of the configuration parameter. The second computing device receives an instruction to start data transmission to the first RU device.

公开(公告)号：US11638326B1

公开(公告)日：2023-04-25

申请号：US17550166

申请日：2021-12-14

Applicant: DISH Wireless L.L.C.

Inventor： Farhad Bassirat ,  Frank Tao Yu

IPC: H04W84/02 ,  H04L41/0654 ,  H04L61/5076 ,  H04L101/622 ,  H04W88/08

Abstract: When a failed connection is detected from a first radio unit (RU) to the cellular site router (CSR), activation of an existing backup cabled connection from the first RU to the CSR through a cabled connection between the first RU and a second RU of the cellular telecommunications tower may be performed. In one example, a first RU and second RU each have two physical network ports. The activation of the existing backup cabled connection from the first RU, via the second RU, to the CSR may include causing the first RU to enter from a normal operating mode into an Open Radio Access Network (O-RAN) cascade operating mode to attempt to attain network connectivity for the first RU using the second physical network port of the first RU.