Patent ID: 11895535
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A wireless backhaul system, comprising:
a wireless backhaul device, a secondary base station of the wireless backhaul device, and a primary base station of the wireless backhaul device, the wireless backhaul device comprises a mobile terminal (MT) function unit and a distributed unit (DU), and the secondary base station comprises a centralized unit (CU), wherein the wireless backhaul device is configured to:
generate a first F1AP message on the DU, and
send the first F1AP message to the MT function unit by using the DU; and
map, on the MT function unit, the first F1AP message to a signaling-plane bearer of an LTE Uu interface, and
send the first F1AP message to the primary base station via the signaling-plane bearer of the LTE Uu interface; the primary base station is configured to:
obtain the first F1AP message from the MT function unit via the signaling-plane bearer of the LTE Uu interface, and
encapsulate the first F1AP message into a first X2AP message; or
obtain a first RRC message of a first standard via the signaling-plane bearer of the LTE Uu interface, wherein the first RRC message of the first standard comprises the first F1AP message, and
encapsulate the first RRC message of the first standard into a first X2AP message; and
send the first X2AP message to the CU of the secondary base station,
encapsulate either the first RRC message of the first standard or the first F1AP message into a first RRC message of a second standard, and
map the first RRC message of the second standard to the signaling-plane bearer of the LTE Uu interface; and the secondary base station is configured to:
receive, on the CU, the first X2AP message from the primary base station, and
obtain, on the CU, the first F1AP message based on the first X2AP message.